3a5cabedcb
This adds the ability for a pool.label to override the pool.host-key-checking value, while having a label exist in the same pool. This is helpful because it is possible for 1 pool to mix network configuration, and some nodes maybe missing a default gateway (making them unroutable by default). Change-Id: I934d42b8e48aedb0ebc03137b7305eb2af390fc7 Signed-off-by: Paul Belanger <pabelanger@redhat.com>
1709 lines
50 KiB
ReStructuredText
1709 lines
50 KiB
ReStructuredText
.. _configuration:
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.. default-domain:: zuul
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Configuration
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=============
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Nodepool reads its configuration from ``/etc/nodepool/nodepool.yaml``
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by default. The configuration file follows the standard YAML syntax
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with a number of sections defined with top level keys. For example, a
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full configuration file may have the ``diskimages``, ``labels``,
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and ``providers`` sections::
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diskimages:
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...
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labels:
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...
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providers:
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...
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The following sections are available. All are required unless
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otherwise indicated.
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.. attr-overview::
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:maxdepth: 1
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Options
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-------
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.. attr:: webapp
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Define the webapp endpoint port and listen address
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.. attr:: port
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:default: 8005
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:type: int
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The port to provide basic status information
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.. attr:: listen_address
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:default: 0.0.0.0
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Listen address for web app
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.. attr:: elements-dir
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:example: /path/to/elements/dir
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:type: str
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If an image is configured to use diskimage-builder and glance to locally
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create and upload images, then a collection of diskimage-builder elements
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must be present. The ``elements-dir`` parameter indicates a directory
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that holds one or more elements.
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.. attr:: images-dir
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:example: /path/to/images/dir
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:type: str
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When we generate images using diskimage-builder they need to be
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written to somewhere. The ``images-dir`` parameter is the place to
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write them.
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.. note:: The builder daemon creates a UUID to uniquely identify
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itself and to mark image builds in ZooKeeper that it
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owns. This file will be named ``builder_id.txt`` and will
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live in the directory named by the :attr:`images-dir`
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option. If this file does not exist, it will be created on
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builder startup and a UUID will be created automatically.
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.. attr:: build-log-dir
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:example: /path/to/log/dir
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:type: str
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The builder will store build logs in this directory. It will create
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one file for each build, named `<image>-<build-id>.log`; for example,
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`fedora-0000000004.log`. It defaults to ``/var/log/nodepool/builds``.
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.. attr:: build-log-retention
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:default: 7
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:type: int
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At the start of each build, the builder will remove old build logs if
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they exceed this value. This option specifies how many will be
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kept (usually you will see one more, as deletion happens before
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starting a new build). By default, the last 7 old build logs are
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kept.
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.. attr:: zookeeper-servers
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:type: list
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:required:
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Lists the ZooKeeper servers uses for coordinating information between
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nodepool workers.
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.. code-block:: yaml
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zookeeper-servers:
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- host: zk1.example.com
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port: 2181
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chroot: /nodepool
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Each entry is a dictionary with the following keys
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.. attr:: host
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:type: str
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:example: zk1.example.com
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:required:
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A zookeeper host
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.. attr:: port
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:default: 2181
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:type: int
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Port to talk to zookeeper
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.. attr:: chroot
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:type: int
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:example: /nodepool
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The ``chroot`` key, used for interpreting ZooKeeper paths
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relative to the supplied root path, is also optional and has no
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default.
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.. attr:: labels
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:type: list
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Defines the types of nodes that should be created. Jobs should be
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written to run on nodes of a certain label. Example
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.. code-block:: yaml
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labels:
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- name: my-precise
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max-ready-age: 3600
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min-ready: 2
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- name: multi-precise
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min-ready: 2
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: string
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:required:
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Unique name used to tie jobs to those instances.
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.. attr:: max-ready-age
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:type: int
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:default: 0
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Maximum number of seconds the node shall be in ready state. If
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this is exceeded the node will be deleted. A value of 0 disables
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this.
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.. attr:: min-ready
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:type: int
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:default: 0
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Minimum number of instances that should be in a ready
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state. Nodepool always creates more nodes as necessary in response
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to demand, but setting ``min-ready`` can speed processing by
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attempting to keep nodes on-hand and ready for immedate use.
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``min-ready`` is best-effort based on available capacity and is
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not a guaranteed allocation. The default of 0 means that nodepool
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will only create nodes of this label when there is demand. Set
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to -1 to have the label considered disabled, so that no nodes will
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be created at all.
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.. attr:: max-hold-age
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:type: int
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:default: 0
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Maximum number of seconds a node shall be in "hold" state. If this
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is exceeded the node will be deleted. A value of 0 disables this.
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This setting is applied to all nodes, regardless of label or
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provider.
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.. attr:: diskimages
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:type: list
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This section lists the images to be built using
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diskimage-builder. The name of the diskimage is mapped to the
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:attr:`providers.[openstack].diskimages` section of the provider,
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to determine which providers should received uploads of each image.
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The diskimage will be built in every format required by the
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providers with which it is associated. Because Nodepool needs to
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know which formats to build, if the diskimage will only be built if
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it appears in at least one provider.
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To remove a diskimage from the system entirely, remove all
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associated entries in :attr:`providers.[openstack].diskimages` and
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remove its entry from `diskimages`. All uploads will be deleted as
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well as the files on disk.
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.. code-block:: yaml
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diskimages:
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- name: ubuntu-precise
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pause: False
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rebuild-age: 86400
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elements:
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- ubuntu-minimal
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- vm
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- simple-init
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- openstack-repos
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- nodepool-base
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- cache-devstack
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- cache-bindep
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- growroot
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- infra-package-needs
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release: precise
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username: zuul
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env-vars:
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TMPDIR: /opt/dib_tmp
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DIB_CHECKSUM: '1'
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DIB_IMAGE_CACHE: /opt/dib_cache
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DIB_APT_LOCAL_CACHE: '0'
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DIB_DISABLE_APT_CLEANUP: '1'
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FS_TYPE: ext3
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- name: ubuntu-xenial
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pause: True
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rebuild-age: 86400
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formats:
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- raw
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- tar
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elements:
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- ubuntu-minimal
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- vm
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- simple-init
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- openstack-repos
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- nodepool-base
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- cache-devstack
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- cache-bindep
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- growroot
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- infra-package-needs
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release: precise
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username: ubuntu
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env-vars:
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TMPDIR: /opt/dib_tmp
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DIB_CHECKSUM: '1'
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DIB_IMAGE_CACHE: /opt/dib_cache
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DIB_APT_LOCAL_CACHE: '0'
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DIB_DISABLE_APT_CLEANUP: '1'
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FS_TYPE: ext3
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: string
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:required:
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Identifier to reference the disk image in
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:attr:`providers.[openstack].diskimages` and :attr:`labels`.
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.. attr:: formats
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:type: list
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The list of formats to build is normally automatically created
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based on the needs of the providers to which the image is
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uploaded. To build images even when no providers are configured
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or to build additional formats which you know you may need in the
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future, list those formats here.
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.. attr:: rebuild-age
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:type: int
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:default: 86400
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If the current diskimage is older than this value (in seconds),
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then nodepool will attempt to rebuild it. Defaults to 86400 (24
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hours).
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.. attr:: release
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:type: string
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Specifies the distro to be used as a base image to build the image using
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diskimage-builder.
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.. attr:: build-timeout
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:type: int
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How long (in seconds) to wait for the diskimage build before giving up.
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The default is 8 hours.
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.. attr:: elements
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:type: list
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Enumerates all the elements that will be included when building the image,
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and will point to the :attr:`elements-dir` path referenced in the same
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config file.
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.. attr:: env-vars
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:type: dict
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Arbitrary environment variables that will be available in the spawned
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diskimage-builder child process.
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.. attr:: pause
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:type: bool
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:default: False
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When set to True, ``nodepool-builder`` will not build the diskimage.
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.. attr:: username
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:type: string
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:default: zuul
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The username that a consumer should use when connecting to the
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node.
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.. attr:: python-path
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:type: string
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:default: /usr/bin/python2
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The path of the default python interpreter.
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.. attr:: providers
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:type: list
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Lists the providers Nodepool should use. Each provider is associated to
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a driver listed below.
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: string
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:required:
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Name of the provider
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.. attr:: max-concurrency
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:type: int
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:default: 0
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Maximum number of node requests that this provider is allowed to
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handle concurrently. The default, if not specified, is to have
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no maximum. Since each node request is handled by a separate
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thread, this can be useful for limiting the number of threads
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used by the nodepool-launcher daemon.
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.. attr:: driver
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:type: string
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:default: openstack
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The driver type.
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.. value:: openstack
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For details on the extra options required and provided by the
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OpenStack driver, see the separate section
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:attr:`providers.[openstack]`
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.. value:: static
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For details on the extra options required and provided by the
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static driver, see the separate section
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:attr:`providers.[static]`
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.. value:: kubernetes
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For details on the extra options required and provided by the
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kubernetes driver, see the separate section
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:attr:`providers.[kubernetes]`
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.. value:: openshift
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For details on the extra options required and provided by the
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openshift driver, see the separate section
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:attr:`providers.[openshift]`
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.. value:: aws
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For details on the extra options required and provided by the
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AWS driver, see the separate section
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:attr:`providers.[aws]`
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.. value:: openshiftpods
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For details on the extra options required and provided by the
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openshiftpods driver, see the separate section
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:attr:`providers.[openshiftpods]`
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OpenStack Driver
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----------------
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Selecting the OpenStack driver adds the following options to the
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:attr:`providers` section of the configuration.
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.. attr-overview::
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:prefix: providers.[openstack]
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:maxdepth: 3
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.. attr:: providers.[openstack]
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Specifying the ``openstack`` driver for a provider adds the
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following keys to the :attr:`providers` configuration.
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.. note:: For documentation purposes the option names are prefixed
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``providers.[openstack]`` to disambiguate from other
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drivers, but ``[openstack]`` is not required in the
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configuration (e.g. below ``providers.[openstack].cloud``
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refers to the ``cloud`` key in the ``providers`` section
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when the ``openstack`` driver is selected).
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An OpenStack provider's resources are partitioned into groups
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called "pools" (see :attr:`providers.[openstack].pools` for details),
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and within a pool, the node types which are to be made available
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are listed (see :attr:`providers.[openstack].pools.labels` for
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details).
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Within each OpenStack provider the available Nodepool image types
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are defined (see :attr:`providers.[openstack].diskimages`).
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.. code-block:: yaml
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providers:
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- name: provider1
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driver: openstack
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cloud: example
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region-name: 'region1'
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rate: 1.0
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boot-timeout: 120
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launch-timeout: 900
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launch-retries: 3
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image-name-format: '{image_name}-{timestamp}'
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hostname-format: '{label.name}-{provider.name}-{node.id}'
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diskimages:
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- name: trusty
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meta:
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key: value
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key2: value
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- name: precise
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- name: devstack-trusty
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pools:
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- name: main
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max-servers: 96
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availability-zones:
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- az1
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networks:
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- some-network-name
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security-groups:
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- zuul-security-group
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labels:
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- name: trusty
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min-ram: 8192
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diskimage: trusty
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console-log: True
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- name: precise
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min-ram: 8192
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diskimage: precise
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- name: devstack-trusty
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min-ram: 8192
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diskimage: devstack-trusty
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- name: provider2
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driver: openstack
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cloud: example2
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region-name: 'region1'
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rate: 1.0
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image-name-format: '{image_name}-{timestamp}'
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hostname-format: '{label.name}-{provider.name}-{node.id}'
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diskimages:
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- name: precise
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meta:
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key: value
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key2: value
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pools:
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- name: main
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max-servers: 96
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labels:
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- name: trusty
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min-ram: 8192
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diskimage: trusty
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- name: precise
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min-ram: 8192
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diskimage: precise
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- name: devstack-trusty
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min-ram: 8192
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diskimage: devstack-trusty
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.. attr:: cloud
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:type: string
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:required:
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Name of a cloud configured in ``clouds.yaml``.
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The instances spawned by nodepool will inherit the default
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security group of the project specified in the cloud definition
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in `clouds.yaml` (if other values not specified). This means
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that when working with Zuul, for example, SSH traffic (TCP/22)
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must be allowed in the project's default security group for Zuul
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to be able to reach instances.
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More information about the contents of `clouds.yaml` can be
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found in `the openstacksdk documentation
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<https://docs.openstack.org/openstacksdk/>`_.
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.. attr:: boot-timeout
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:type: int seconds
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:default: 60
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Once an instance is active, how long to try connecting to the
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image via SSH. If the timeout is exceeded, the node launch is
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aborted and the instance deleted.
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.. attr:: launch-timeout
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:type: int seconds
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:default: 3600
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The time to wait from issuing the command to create a new instance
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until that instance is reported as "active". If the timeout is
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exceeded, the node launch is aborted and the instance deleted.
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.. attr:: nodepool-id
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:type: string
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:default: None
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*Deprecated*
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A unique string to identify which nodepool instances is using a
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provider. This is useful if you want to configure production
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and development instances of nodepool but share the same
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provider.
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.. attr:: launch-retries
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:type: int
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:default: 3
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The number of times to retry launching a server before
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considering the job failed.
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.. attr:: region-name
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:type: string
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The region name if the provider cloud has multiple regions.
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.. attr:: hostname-format
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:type: string
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:default: {label.name}-{provider.name}-{node.id}
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Hostname template to use for the spawned instance.
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.. attr:: image-name-format
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:type: string
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:default: {image_name}-{timestamp}
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Format for image names that are uploaded to providers.
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.. attr:: rate
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:type: int seconds
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:default: 1
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In seconds, amount to wait between operations on the provider.
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.. attr:: clean-floating-ips
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:type: bool
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:default: True
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If it is set to True, nodepool will assume it is the only user of
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the OpenStack project and will attempt to clean unattached
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floating ips that may have leaked around restarts.
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.. attr:: diskimages
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:type: list
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Each entry in a provider's `diskimages` section must correspond
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to an entry in :attr:`diskimages`. Such an entry indicates that
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the corresponding diskimage should be uploaded for use in this
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provider. Additionally, any nodes that are created using the
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uploaded image will have the associated attributes (such as
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flavor or metadata).
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If an image is removed from this section, any previously uploaded
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images will be deleted from the provider.
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|
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.. code-block:: yaml
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diskimages:
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- name: precise
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pause: False
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meta:
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key: value
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key2: value
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- name: windows
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connection-type: winrm
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connection-port: 5986
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: string
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:required:
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Identifier to refer this image from
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:attr:`providers.[openstack].pools.labels` and
|
|
:attr:`diskimages` sections.
|
|
|
|
.. attr:: pause
|
|
:type: bool
|
|
:default: False
|
|
|
|
When set to True, nodepool-builder will not upload the image
|
|
to the provider.
|
|
|
|
.. attr:: config-drive
|
|
:type: bool
|
|
:default: unset
|
|
|
|
Whether config drive should be used for the image. Defaults to
|
|
unset which will use the cloud's default behavior.
|
|
|
|
.. attr:: meta
|
|
:type: dict
|
|
|
|
Arbitrary key/value metadata to store for this server using
|
|
the Nova metadata service. A maximum of five entries is
|
|
allowed, and both keys and values must be 255 characters or
|
|
less.
|
|
|
|
.. attr:: connection-type
|
|
:type: string
|
|
|
|
The connection type that a consumer should use when connecting
|
|
to the node. For most diskimages this is not
|
|
necessary. However when creating Windows images this could be
|
|
``winrm`` to enable access via ansible.
|
|
|
|
.. attr:: connection-port
|
|
:type: int
|
|
:default: 22 / 5986
|
|
|
|
The port that a consumer should use when connecting to the
|
|
node. For most diskimages this is not necessary. This defaults
|
|
to 22 for ssh and 5986 for winrm.
|
|
|
|
.. attr:: cloud-images
|
|
:type: list
|
|
|
|
Each entry in this section must refer to an entry in the
|
|
:attr:`labels` section.
|
|
|
|
.. code-block:: yaml
|
|
|
|
cloud-images:
|
|
- name: trusty-external
|
|
config-drive: False
|
|
- name: windows-external
|
|
connection-type: winrm
|
|
connection-port: 5986
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:type: string
|
|
:required:
|
|
|
|
Identifier to refer this cloud-image from :attr:`labels`
|
|
section. Since this name appears elsewhere in the nodepool
|
|
configuration file, you may want to use your own descriptive
|
|
name here and use one of ``image-id`` or ``image-name`` to
|
|
specify the cloud image so that if the image name or id
|
|
changes on the cloud, the impact to your Nodepool
|
|
configuration will be minimal. However, if neither of those
|
|
attributes are provided, this is also assumed to be the image
|
|
name or ID in the cloud.
|
|
|
|
.. attr:: config-drive
|
|
:type: bool
|
|
:default: unset
|
|
|
|
Whether config drive should be used for the cloud
|
|
image. Defaults to unset which will use the cloud's default
|
|
behavior.
|
|
|
|
.. attr:: image-id
|
|
:type: str
|
|
|
|
If this is provided, it is used to select the image from the
|
|
cloud provider by ID, rather than name. Mutually exclusive
|
|
with :attr:`providers.[openstack].cloud-images.image-name`
|
|
|
|
.. attr:: image-name
|
|
:type: str
|
|
|
|
If this is provided, it is used to select the image from the
|
|
cloud provider by this name or ID. Mutually exclusive with
|
|
:attr:`providers.[openstack].cloud-images.image-id`
|
|
|
|
.. attr:: username
|
|
:type: str
|
|
|
|
The username that a consumer should use when connecting to the
|
|
node.
|
|
|
|
.. attr:: python-path
|
|
:type: str
|
|
:default: /usr/bin/python2
|
|
|
|
The path of the default python interpreter.
|
|
|
|
.. attr:: connection-type
|
|
:type: str
|
|
|
|
The connection type that a consumer should use when connecting
|
|
to the node. For most diskimages this is not
|
|
necessary. However when creating Windows images this could be
|
|
'winrm' to enable access via ansible.
|
|
|
|
.. attr:: connection-port
|
|
:type: int
|
|
:default: 22/ 5986
|
|
|
|
The port that a consumer should use when connecting to the
|
|
node. For most diskimages this is not necessary. This defaults
|
|
to 22 for ssh and 5986 for winrm.
|
|
|
|
.. attr:: pools
|
|
:type: list
|
|
|
|
A pool defines a group of resources from an OpenStack
|
|
provider. Each pool has a maximum number of nodes which can be
|
|
launched from it, along with a number of cloud-related attributes
|
|
used when launching nodes.
|
|
|
|
.. code-block:: yaml
|
|
|
|
pools:
|
|
- name: main
|
|
max-servers: 96
|
|
availability-zones:
|
|
- az1
|
|
networks:
|
|
- some-network-name
|
|
security-groups:
|
|
- zuul-security-group
|
|
auto-floating-ip: False
|
|
host-key-checking: True
|
|
node-attributes:
|
|
key1: value1
|
|
key2: value2
|
|
labels:
|
|
- name: trusty
|
|
min-ram: 8192
|
|
diskimage: trusty
|
|
console-log: True
|
|
- name: precise
|
|
min-ram: 8192
|
|
diskimage: precise
|
|
- name: devstack-trusty
|
|
min-ram: 8192
|
|
diskimage: devstack-trusty
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:type: string
|
|
:required:
|
|
|
|
Pool name
|
|
|
|
.. attr:: node-attributes
|
|
:type: dict
|
|
|
|
A dictionary of key-value pairs that will be stored with the node data
|
|
in ZooKeeper. The keys and values can be any arbitrary string.
|
|
|
|
.. attr:: max-cores
|
|
:type: int
|
|
|
|
Maximum number of cores usable from this pool. This can be used
|
|
to limit usage of the tenant. If not defined nodepool can use
|
|
all cores up to the quota of the tenant.
|
|
|
|
.. attr:: max-servers
|
|
:type: int
|
|
|
|
Maximum number of servers spawnable from this pool. This can
|
|
be used to limit the number of servers. If not defined
|
|
nodepool can create as many servers the tenant allows.
|
|
|
|
.. attr:: max-ram
|
|
:type: int
|
|
|
|
Maximum ram usable from this pool. This can be used to limit
|
|
the amount of ram allocated by nodepool. If not defined
|
|
nodepool can use as much ram as the tenant allows.
|
|
|
|
.. attr:: ignore-provider-quota
|
|
:type: bool
|
|
:default: False
|
|
|
|
Ignore the provider quota for this pool. Instead, only check
|
|
against the configured max values for this pool and the
|
|
current usage based on stored data. This may be useful in
|
|
circumstances where the provider is incorrectly calculating
|
|
quota.
|
|
|
|
.. attr:: availability-zones
|
|
:type: list
|
|
|
|
A list of availability zones to use.
|
|
|
|
If this setting is omitted, nodepool will fetch the list of
|
|
all availability zones from nova. To restrict nodepool to a
|
|
subset of availability zones, supply a list of availability
|
|
zone names in this setting.
|
|
|
|
Nodepool chooses an availability zone from the list at random
|
|
when creating nodes but ensures that all nodes for a given
|
|
request are placed in the same availability zone.
|
|
|
|
.. attr:: networks
|
|
:type: list
|
|
|
|
Specify custom Neutron networks that get attached to each
|
|
node. Specify the name or id of the network as a string.
|
|
|
|
.. attr:: security-groups
|
|
:type: list
|
|
|
|
Specify custom Neutron security groups that get attached to
|
|
each node. Specify the name or id of the security_group as a
|
|
string.
|
|
|
|
.. attr:: auto-floating-ip
|
|
:type: bool
|
|
:default: True
|
|
|
|
Specify custom behavior of allocating floating ip for each
|
|
node. When set to False, ``nodepool-launcher`` will not apply
|
|
floating ip for nodes. When zuul instances and nodes are
|
|
deployed in the same internal private network, set the option
|
|
to False to save floating ip for cloud provider.
|
|
|
|
.. attr:: host-key-checking
|
|
:type: bool
|
|
:default: True
|
|
|
|
Specify custom behavior of validation of SSH host keys. When
|
|
set to False, nodepool-launcher will not ssh-keyscan nodes
|
|
after they are booted. This might be needed if
|
|
nodepool-launcher and the nodes it launches are on different
|
|
networks. The default value is True.
|
|
|
|
.. attr:: labels
|
|
:type: list
|
|
|
|
Each entry in a pool`s `labels` section indicates that the
|
|
corresponding label is available for use in this pool. When
|
|
creating nodes for a label, the flavor-related attributes in that
|
|
label's section will be used.
|
|
|
|
.. code-block:: yaml
|
|
|
|
labels:
|
|
- name: precise
|
|
min-ram: 8192
|
|
flavor-name: 'something to match'
|
|
console-log: True
|
|
- name: trusty
|
|
min-ram: 8192
|
|
networks:
|
|
- public
|
|
- private
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:type: str
|
|
:required:
|
|
|
|
Identifier to refer this image; from :attr:`labels` and
|
|
:attr:`diskimages` sections.
|
|
|
|
.. attr:: diskimage
|
|
:type: str
|
|
:required:
|
|
|
|
Refers to provider's diskimages, see
|
|
:attr:`providers.[openstack].diskimages`. Mutually exclusive
|
|
with :attr:`providers.[openstack].pools.labels.cloud-image`
|
|
|
|
.. attr:: cloud-image
|
|
:type: str
|
|
:required:
|
|
|
|
Refers to the name of an externally managed image in the
|
|
cloud that already exists on the provider. The value of
|
|
``cloud-image`` should match the ``name`` of a previously
|
|
configured entry from the ``cloud-images`` section of the
|
|
provider. See :attr:`providers.[openstack].cloud-images`.
|
|
Mutually exclusive with
|
|
:attr:`providers.[openstack].pools.labels.diskimage`
|
|
|
|
.. attr:: flavor-name
|
|
:type: str
|
|
|
|
Name or id of the flavor to use. If
|
|
:attr:`providers.[openstack].pools.labels.min-ram` is
|
|
omitted, it must be an exact match. If
|
|
:attr:`providers.[openstack].pools.labels.min-ram` is given,
|
|
``flavor-name`` will be used to find flavor names that meet
|
|
:attr:`providers.[openstack].pools.labels.min-ram` and also
|
|
contain ``flavor-name``.
|
|
|
|
One of :attr:`providers.[openstack].pools.labels.min-ram` or
|
|
:attr:`providers.[openstack].pools.labels.flavor-name` must
|
|
be specified.
|
|
|
|
.. attr:: min-ram
|
|
:type: int
|
|
|
|
Determine the flavor to use (e.g. ``m1.medium``,
|
|
``m1.large``, etc). The smallest flavor that meets the
|
|
``min-ram`` requirements will be chosen.
|
|
|
|
One of :attr:`providers.[openstack].pools.labels.min-ram` or
|
|
:attr:`providers.[openstack].pools.labels.flavor-name` must
|
|
be specified.
|
|
|
|
.. attr:: boot-from-volume
|
|
:type: bool
|
|
:default: False
|
|
|
|
If given, the label for use in this pool will create a
|
|
volume from the image and boot the node from it.
|
|
|
|
.. attr:: host-key-checking
|
|
:type: bool
|
|
:default: True
|
|
|
|
Specify custom behavior of validation of SSH host keys. When set to
|
|
False, nodepool-launcher will not ssh-keyscan nodes after they are
|
|
booted. This might be needed if nodepool-launcher and the nodes it
|
|
launches are on different networks. The default value is True.
|
|
|
|
.. note:: This value will override the value for
|
|
:attr:`providers.[openstack].pools.host-key-checking`.
|
|
|
|
.. attr:: networks
|
|
:type: list
|
|
|
|
Specify custom Neutron networks that get attached to each
|
|
node. Specify the name or id of the network as a string.
|
|
|
|
.. note:: This value will override the value for
|
|
:attr:`providers.[openstack].pools.networks`.
|
|
|
|
.. attr:: key-name
|
|
:type: string
|
|
|
|
If given, is the name of a keypair that will be used when
|
|
booting each server.
|
|
|
|
.. attr:: console-log
|
|
:type: bool
|
|
:default: False
|
|
|
|
On the failure of the ssh ready check, download the server
|
|
console log to aid in debuging the problem.
|
|
|
|
.. attr:: volume-size
|
|
:type: int gigabytes
|
|
:default: 50
|
|
|
|
When booting an image from volume, how big should the
|
|
created volume be.
|
|
|
|
.. attr:: instance-properties
|
|
:type: dict
|
|
:default: None
|
|
|
|
A dictionary of key/value properties to set when booting
|
|
each server. These properties become available via the
|
|
``meta-data`` on the active server (e.g. within
|
|
``config-drive:openstack/latest/meta_data.json``)
|
|
|
|
.. attr:: userdata
|
|
:type: str
|
|
:default: None
|
|
|
|
A string of userdata for a node. Example usage is to install
|
|
cloud-init package on image which will apply the userdata.
|
|
Additional info about options in cloud-config:
|
|
https://cloudinit.readthedocs.io/en/latest/topics/examples.html
|
|
|
|
|
|
Static Driver
|
|
-------------
|
|
|
|
Selecting the static driver adds the following options to the
|
|
:attr:`providers` section of the configuration.
|
|
|
|
.. attr-overview::
|
|
:prefix: providers.[static]
|
|
:maxdepth: 3
|
|
|
|
.. attr:: providers.[static]
|
|
:type: list
|
|
|
|
The static provider driver is used to define static nodes.
|
|
|
|
.. note:: For documentation purposes the option names are prefixed
|
|
``providers.[static]`` to disambiguate from other
|
|
drivers, but ``[static]`` is not required in the
|
|
configuration (e.g. below ``providers.[static].pools``
|
|
refers to the ``pools`` key in the ``providers`` section
|
|
when the ``static`` driver is selected).
|
|
|
|
Example:
|
|
|
|
.. code-block:: yaml
|
|
|
|
providers:
|
|
- name: static-rack
|
|
driver: static
|
|
pools:
|
|
- name: main
|
|
nodes:
|
|
- name: trusty.example.com
|
|
labels: trusty-static
|
|
timeout: 13
|
|
connection-port: 22022
|
|
host-key: fake-key
|
|
username: zuul
|
|
max-parallel-jobs: 1
|
|
|
|
.. attr:: pools
|
|
:type: list
|
|
|
|
A pool defines a group of statically declared nodes.
|
|
|
|
.. note::
|
|
|
|
Although you may define more than one pool, it is essentially
|
|
useless to do so since a node's ``name`` must be unique
|
|
across all pools.
|
|
|
|
Each entry is a dictionary with entries as follows
|
|
|
|
.. attr:: name
|
|
:type: str
|
|
:required:
|
|
|
|
Pool name
|
|
|
|
.. attr:: nodes
|
|
:type: list
|
|
:required:
|
|
|
|
Each entry indicates a static node and it's attributes.
|
|
|
|
.. attr:: name
|
|
:type: str
|
|
:required:
|
|
|
|
The hostname or ip address of the static node. This must be
|
|
unique across all nodes defined within the configuration file.
|
|
|
|
.. attr:: labels
|
|
:type: list
|
|
:required:
|
|
|
|
The list of labels associated with the node.
|
|
|
|
.. attr:: timeout
|
|
:type: int
|
|
:default: 5
|
|
|
|
The timeout in second before the ssh ping is considered failed.
|
|
|
|
.. attr:: connection-type
|
|
:type: string
|
|
|
|
The connection type that a consumer should use when connecting
|
|
to the node.
|
|
|
|
.. value:: winrm
|
|
|
|
.. value:: ssh
|
|
|
|
.. attr:: connection-port
|
|
:type: int
|
|
:default: 22 / 5986
|
|
|
|
The port that a consumer should use when connecting to the node.
|
|
For most nodes this is not necessary. This defaults to 22 when
|
|
``connection-type`` is 'ssh' and 5986 when it is 'winrm'.
|
|
|
|
.. attr:: host-key
|
|
:type: str
|
|
|
|
The ssh host key of the node.
|
|
|
|
.. attr:: username
|
|
:type: str
|
|
:default: zuul
|
|
|
|
The username nodepool will use to validate it can connect to the
|
|
node.
|
|
|
|
.. attr:: python-path
|
|
:type: str
|
|
:default: /usr/bin/python2
|
|
|
|
The path of the default python interpreter.
|
|
|
|
.. attr:: max-parallel-jobs
|
|
:type: int
|
|
:default: 1
|
|
|
|
The number of jobs that can run in parallel on this node.
|
|
|
|
|
|
Kubernetes Driver
|
|
-----------------
|
|
|
|
Selecting the kubernetes driver adds the following options to the
|
|
:attr:`providers` section of the configuration.
|
|
|
|
.. attr-overview::
|
|
:prefix: providers.[kubernetes]
|
|
:maxdepth: 3
|
|
|
|
.. attr:: providers.[kubernetes]
|
|
:type: list
|
|
|
|
A Kubernetes provider's resources are partitioned into groups
|
|
called `pools` (see :attr:`providers.[kubernetes].pools` for
|
|
details), and within a pool, the node types which are to be made
|
|
available are listed (see :attr:`providers.[kubernetes].labels` for
|
|
details).
|
|
|
|
.. note:: For documentation purposes the option names are prefixed
|
|
``providers.[kubernetes]`` to disambiguate from other
|
|
drivers, but ``[kubernetes]`` is not required in the
|
|
configuration (e.g. below
|
|
``providers.[kubernetes].pools`` refers to the ``pools``
|
|
key in the ``providers`` section when the ``kubernetes``
|
|
driver is selected).
|
|
|
|
Example:
|
|
|
|
.. code-block:: yaml
|
|
|
|
providers:
|
|
- name: kubespray
|
|
driver: kubernetes
|
|
context: admin-cluster.local
|
|
pools:
|
|
- name: main
|
|
labels:
|
|
- name: kubernetes-namespace
|
|
type: namespace
|
|
- name: pod-fedora
|
|
type: pod
|
|
image: docker.io/fedora:28
|
|
|
|
|
|
.. attr:: context
|
|
:required:
|
|
|
|
Name of the context configured in ``kube/config``.
|
|
|
|
Before using the driver, Nodepool services need a
|
|
``kube/config`` file manually installed with cluster admin
|
|
context.
|
|
|
|
.. attr:: launch-retries
|
|
:default: 3
|
|
|
|
The number of times to retry launching a node before considering
|
|
the job failed.
|
|
|
|
|
|
.. attr:: pools
|
|
:type: list
|
|
|
|
A pool defines a group of resources from a Kubernetes
|
|
provider.
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
Namespaces are prefixed with the pool's name.
|
|
|
|
.. attr:: labels
|
|
:type: list
|
|
|
|
Each entry in a pool`s `labels` section indicates that the
|
|
corresponding label is available for use in this pool.
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
Identifier for this label; references an entry in the
|
|
:attr:`labels` section.
|
|
|
|
.. attr:: type
|
|
|
|
The Kubernetes provider supports two types of labels:
|
|
|
|
.. value:: namespace
|
|
|
|
Namespace labels provide an empty namespace configured
|
|
with a service account that can create pods, services,
|
|
configmaps, etc.
|
|
|
|
.. value:: pod
|
|
|
|
Pod labels provide a dedicated namespace with a single pod
|
|
created using the
|
|
:attr:`providers.[kubernetes].labels.image` parameter and it
|
|
is configured with a service account that can exec and get
|
|
the logs of the pod.
|
|
|
|
.. attr:: image
|
|
|
|
Only used by the
|
|
:value:`providers.[kubernetes].labels.type.pod` label type;
|
|
specifies the image name used by the pod.
|
|
|
|
.. attr:: python-path
|
|
:type: str
|
|
:default: /usr/bin/python2
|
|
|
|
The path of the default python interpreter.
|
|
|
|
|
|
Openshift Driver
|
|
----------------
|
|
|
|
Selecting the openshift driver adds the following options to the
|
|
:attr:`providers` section of the configuration.
|
|
|
|
.. attr-overview::
|
|
:prefix: providers.[openshift]
|
|
:maxdepth: 3
|
|
|
|
.. attr:: providers.[openshift]
|
|
:type: list
|
|
|
|
An Openshift provider's resources are partitioned into groups called `pool`
|
|
(see :attr:`providers.[openshift].pools` for details), and within a pool,
|
|
the node types which are to be made available are listed
|
|
(see :attr:`providers.[openshift].labels` for details).
|
|
|
|
.. note:: For documentation purposes the option names are prefixed
|
|
``providers.[openshift]`` to disambiguate from other
|
|
drivers, but ``[openshift]`` is not required in the
|
|
configuration (e.g. below
|
|
``providers.[openshift].pools`` refers to the ``pools``
|
|
key in the ``providers`` section when the ``openshift``
|
|
driver is selected).
|
|
|
|
Example:
|
|
|
|
.. code-block:: yaml
|
|
|
|
providers:
|
|
- name: cluster
|
|
driver: openshift
|
|
context: context-name
|
|
pools:
|
|
- name: main
|
|
labels:
|
|
- name: openshift-project
|
|
type: project
|
|
- name: openshift-pod
|
|
type: pod
|
|
image: docker.io/fedora:28
|
|
|
|
.. attr:: context
|
|
:required:
|
|
|
|
Name of the context configured in ``kube/config``.
|
|
|
|
Before using the driver, Nodepool services need a ``kube/config`` file
|
|
manually installed with self-provisioner (the service account needs to
|
|
be able to create projects) context.
|
|
Make sure the context is present in ``oc config get-contexts`` command
|
|
output.
|
|
|
|
.. attr:: launch-retries
|
|
:default: 3
|
|
|
|
The number of times to retry launching a node before considering
|
|
the job failed.
|
|
|
|
.. attr:: max-projects
|
|
:default: infinite
|
|
:type: int
|
|
|
|
Maximum number of projects that can be used.
|
|
|
|
.. attr:: pools
|
|
:type: list
|
|
|
|
A pool defines a group of resources from an Openshift provider.
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
Project's name are prefixed with the pool's name.
|
|
|
|
.. attr:: labels
|
|
:type: list
|
|
|
|
Each entry in a pool`s `labels` section indicates that the
|
|
corresponding label is available for use in this pool.
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
Identifier for this label; references an entry in the
|
|
:attr:`labels` section.
|
|
|
|
.. attr:: type
|
|
|
|
The Openshift provider supports two types of labels:
|
|
|
|
.. value:: project
|
|
|
|
Project labels provide an empty project configured
|
|
with a service account that can create pods, services,
|
|
configmaps, etc.
|
|
|
|
.. value:: pod
|
|
|
|
Pod labels provide a new dedicated project with a single
|
|
pod created using the
|
|
:attr:`providers.[openshift].labels.image` parameter and it
|
|
is configured with a service account that can exec and get
|
|
the logs of the pod.
|
|
|
|
.. attr:: image
|
|
|
|
Only used by the
|
|
:value:`providers.[openshift].labels.type.pod` label type;
|
|
specifies the image name used by the pod.
|
|
|
|
.. attr:: image-pull
|
|
:default: IfNotPresent
|
|
:type: str
|
|
|
|
The ImagePullPolicy, can be IfNotPresent, Always or Never.
|
|
|
|
.. attr:: python-path
|
|
:type: str
|
|
:default: /usr/bin/python2
|
|
|
|
The path of the default python interpreter.
|
|
|
|
.. attr:: cpu
|
|
:type: int
|
|
|
|
Only used by the
|
|
:value:`providers.[openshift].labels.type.pod` label type;
|
|
specifies the number of cpu to request for the pod.
|
|
|
|
.. attr:: memory
|
|
:type: int
|
|
|
|
Only used by the
|
|
:value:`providers.[openshift].labels.type.pod` label type;
|
|
specifies the amount of memory in MB to request for the pod.
|
|
|
|
|
|
Openshift Pods Driver
|
|
---------------------
|
|
|
|
Selecting the openshift pods driver adds the following options to the
|
|
:attr:`providers` section of the configuration.
|
|
|
|
.. attr:: providers.[openshiftpods]
|
|
:type: list
|
|
|
|
The Openshift Pods driver is similar to the Openshift driver, but it
|
|
only support pod label to be created in a single project. This enable
|
|
using an unprivileged service account that doesn't requires the
|
|
self-provisioner role.
|
|
|
|
Example:
|
|
|
|
.. code-block:: yaml
|
|
|
|
providers:
|
|
- name: cluster
|
|
driver: openshiftpods
|
|
context: unprivileged-context-name
|
|
pools:
|
|
- name: main
|
|
labels:
|
|
- name: openshift-pod
|
|
image: docker.io/fedora:28
|
|
|
|
.. attr:: context
|
|
:required:
|
|
|
|
Name of the context configured in ``kube/config``.
|
|
|
|
Before using the driver, Nodepool services need a ``kube/config`` file
|
|
manually installed with self-provisioner (the service account needs to
|
|
be able to create projects) context.
|
|
Make sure the context is present in ``oc config get-contexts`` command
|
|
output.
|
|
|
|
.. attr:: launch-retries
|
|
:default: 3
|
|
|
|
The number of times to retry launching a pod before considering
|
|
the job failed.
|
|
|
|
.. attr:: max-pods
|
|
:default: infinite
|
|
:type: int
|
|
|
|
Maximum number of pods that can be used.
|
|
|
|
.. attr:: pools
|
|
:type: list
|
|
|
|
A pool defines a group of resources from an Openshift provider.
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
The project's name that will be used to create the pods.
|
|
|
|
.. attr:: labels
|
|
:type: list
|
|
|
|
Each entry in a pool`s `labels` section indicates that the
|
|
corresponding label is available for use in this pool.
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
Identifier for this label; references an entry in the
|
|
:attr:`labels` section.
|
|
|
|
.. attr:: image
|
|
|
|
The image name.
|
|
|
|
.. attr:: image-pull
|
|
:default: IfNotPresent
|
|
:type: str
|
|
|
|
The ImagePullPolicy, can be IfNotPresent, Always or Never.
|
|
|
|
.. attr:: cpu
|
|
:type: int
|
|
|
|
The number of cpu to request for the pod.
|
|
|
|
.. attr:: memory
|
|
:type: int
|
|
|
|
The amount of memory in MB to request for the pod.
|
|
|
|
|
|
AWS EC2 Driver
|
|
--------------
|
|
|
|
Selecting the aws driver adds the following options to the :attr:`providers`
|
|
section of the configuration.
|
|
|
|
.. attr-overview::
|
|
:prefix: providers.[aws]
|
|
:maxdepth: 3
|
|
|
|
.. attr:: providers.[aws]
|
|
:type: list
|
|
|
|
An AWS provider's resources are partitioned into groups called `pool`
|
|
(see :attr:`providers.[aws].pools` for details), and within a pool,
|
|
the node types which are to be made available are listed
|
|
(see :attr:`providers.[aws].pools.labels` for details).
|
|
|
|
See `Boto Configuration`_ for information on how to configure credentials
|
|
and other settings for AWS access in Nodepool's runtime environment.
|
|
|
|
.. note:: For documentation purposes the option names are prefixed
|
|
``providers.[aws]`` to disambiguate from other
|
|
drivers, but ``[aws]`` is not required in the
|
|
configuration (e.g. below
|
|
``providers.[aws].pools`` refers to the ``pools``
|
|
key in the ``providers`` section when the ``aws``
|
|
driver is selected).
|
|
|
|
Example:
|
|
|
|
.. code-block:: yaml
|
|
|
|
providers:
|
|
- name: ec2-us-west-2
|
|
driver: aws
|
|
region-name: us-west-2
|
|
cloud-images:
|
|
- name: debian9
|
|
image-id: ami-09c308526d9534717
|
|
username: admin
|
|
pools:
|
|
- name: main
|
|
max-servers: 5
|
|
subnet-id: subnet-0123456789abcdef0
|
|
security-group-id: sg-01234567890abcdef
|
|
labels:
|
|
- name: debian9
|
|
cloud-image: debian9
|
|
instance-type: t3.medium
|
|
key-name: zuul
|
|
- name: debian9-large
|
|
cloud-image: debian9
|
|
instance-type: t3.large
|
|
key-name: zuul
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
A unique name for this provider configuration.
|
|
|
|
.. attr:: region
|
|
:required:
|
|
|
|
Name of the `AWS region`_ to interact with.
|
|
|
|
.. attr:: profile-name
|
|
|
|
The AWS credentials profile to load for this provider. If unspecified the
|
|
`boto3` library will select a profile.
|
|
|
|
See `Boto Configuration`_ for more information.
|
|
|
|
.. attr:: boot-timeout
|
|
:type: int seconds
|
|
:default: 60
|
|
|
|
Once an instance is active, how long to try connecting to the
|
|
image via SSH. If the timeout is exceeded, the node launch is
|
|
aborted and the instance deleted.
|
|
|
|
.. attr:: launch-retries
|
|
:default: 3
|
|
|
|
The number of times to retry launching a node before considering
|
|
the job failed.
|
|
|
|
.. attr:: cloud-images
|
|
:type: list
|
|
|
|
Each entry in this section must refer to an entry in the
|
|
:attr:`providers.[aws].cloud-images` section.
|
|
|
|
.. code-block:: yaml
|
|
|
|
cloud-images:
|
|
- name: ubuntu1804
|
|
image-id: ami-082fd9a18128c9e8c
|
|
username: ubuntu
|
|
- name: my-custom-win2k3
|
|
connection-type: winrm
|
|
username: admin
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:type: string
|
|
:required:
|
|
|
|
Identifier to refer this cloud-image from :attr:`labels` section.
|
|
Since this name appears elsewhere in the nodepool configuration file,
|
|
you may want to use your own descriptive name here and use
|
|
``image-id`` to specify the cloud image so that if
|
|
the image id changes on the cloud, the impact to your Nodepool
|
|
configuration will be minimal. However, if ``image-id`` is not
|
|
provided, this is assumed to be the image id in the cloud.
|
|
|
|
.. attr:: image-id
|
|
:type: str
|
|
|
|
If this is provided, it is used to select the image from the cloud
|
|
provider by ID.
|
|
|
|
.. attr:: username
|
|
:type: str
|
|
|
|
The username that a consumer should use when connecting to the node.
|
|
|
|
.. attr:: python-path
|
|
:type: str
|
|
:default: /usr/bin/python2
|
|
|
|
The path of the default python interpreter.
|
|
|
|
.. attr:: connection-type
|
|
:type: str
|
|
|
|
The connection type that a consumer should use when connecting to the
|
|
node. For most images this is not necessary. However when creating
|
|
Windows images this could be 'winrm' to enable access via ansible.
|
|
|
|
.. attr:: connection-port
|
|
:type: int
|
|
:default: 22/ 5986
|
|
|
|
The port that a consumer should use when connecting to the node. For
|
|
most diskimages this is not necessary. This defaults to 22 for ssh and
|
|
5986 for winrm.
|
|
|
|
.. attr:: pools
|
|
:type: list
|
|
|
|
A pool defines a group of resources from an AWS provider. Each pool has a
|
|
maximum number of nodes which can be launched from it, along with a number
|
|
of cloud-related attributes used when launching nodes.
|
|
|
|
.. attr:: name
|
|
:required:
|
|
|
|
A unique name within the provider for this pool of resources.
|
|
|
|
.. attr:: subnet-id
|
|
|
|
If provided, specifies the subnet to assign to the primary network
|
|
interface of nodes.
|
|
|
|
.. attr:: security-group-id
|
|
|
|
If provided, specifies the security group ID to assign to the primary
|
|
network interface of nodes.
|
|
|
|
.. attr:: host-key-checking
|
|
:type: bool
|
|
:default: True
|
|
|
|
Specify custom behavior of validation of SSH host keys. When set to
|
|
False, nodepool-launcher will not ssh-keyscan nodes after they are
|
|
booted. This might be needed if nodepool-launcher and the nodes it
|
|
launches are on different networks. The default value is True.
|
|
|
|
.. attr:: labels
|
|
:type: list
|
|
|
|
Each entry in a pool's `labels` section indicates that the
|
|
corresponding label is available for use in this pool. When creating
|
|
nodes for a label, the flavor-related attributes in that label's
|
|
section will be used.
|
|
|
|
.. code-block:: yaml
|
|
|
|
labels:
|
|
- name: bionic
|
|
instance-type: m5a.large
|
|
console-log: True
|
|
|
|
Each entry is a dictionary with the following keys
|
|
|
|
.. attr:: name
|
|
:type: str
|
|
:required:
|
|
|
|
Identifier to refer this label.
|
|
|
|
.. attr:: cloud-image
|
|
:type: str
|
|
:required:
|
|
|
|
Refers to the name of an externally managed image in the
|
|
cloud that already exists on the provider. The value of
|
|
``cloud-image`` should match the ``name`` of a previously
|
|
configured entry from the ``cloud-images`` section of the
|
|
provider. See :attr:`providers.[aws].cloud-images`.
|
|
|
|
.. attr:: instance-type
|
|
:type: str
|
|
:required:
|
|
|
|
Name of the flavor to use.
|
|
|
|
.. attr:: key-name
|
|
:type: string
|
|
|
|
If given, the name of a keypair that will be used when
|
|
booting each server.
|
|
|
|
.. attr:: volume-type
|
|
:type: string
|
|
|
|
If given, the root `EBS volume type`_
|
|
|
|
.. attr:: volume-size
|
|
:type: int
|
|
|
|
If given, the size of the root EBS volume, in GiB.
|
|
|
|
|
|
.. _`EBS volume type`: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html
|
|
.. _`AWS region`: https://docs.aws.amazon.com/general/latest/gr/rande.html
|
|
.. _`Boto configuration`: https://boto3.amazonaws.com/v1/documentation/api/latest/guide/configuration.html
|