docs/doc/source/usertasks/kubernetes/usertask-using-container-backed-remote-clis-and-clients.rst
Ron Stone f125a8b892 Remove spurious escapes (r8,dsR8)
This change addresses a long-standing issue in rST documentation imported from XML.
That import process added backslash escapes in front of various characters. The three
most common being '(', ')', and '_'.
These instances are removed.

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Id43a9337ffcd505ccbdf072d7b29afdb5d2c997e
2023-03-01 11:19:04 +00:00

164 lines
5.3 KiB
ReStructuredText

.. vja1605798752774
.. _usertask-using-container-backed-remote-clis-and-clients:
================================
Use Container-backed Remote CLIs
================================
Remote platform |CLIs| can be used in any shell after sourcing the generated
remote CLI/client RC file. This RC file sets up the required environment
variables and aliases for the remote CLI commands.
.. contents:: The following topics are discussed below:
:local:
:depth: 1
.. note::
Consider adding this command to your .login or shell rc file, such that
your shells will automatically be initialized with the environment
variables and aliases for the remote CLI commands.
.. rubric:: |prereq|
You must have completed the configuration steps described in
:ref:`Configuring Container-backed Remote CLIs
<kubernetes-user-tutorials-configuring-container-backed-remote-clis-and-clients>`
before proceeding.
.. rubric:: |proc|
*******************************
Kubernetes kubectl CLI commands
*******************************
.. note::
The first usage of a remote CLI command will be slow as it requires
that the docker image supporting the remote CLIs/clients be pulled from
the remote registry.
.. code-block:: none
root@myclient:/home/user/remote_wd# source remote_client_platform.sh
Please enter your OpenStack Password for project tenant1 as user user1:
root@myclient:/home/user/remote_wd# kubectl -n kube-system get pods
NAME READY STATUS RESTARTS AGE
calico-kube-controllers-767467f9cf-wtvmr 1/1 Running 1 3d2h
calico-node-j544l 1/1 Running 1 3d
calico-node-ngmxt 1/1 Running 1 3d1h
calico-node-qtc99 1/1 Running 1 3d
calico-node-x7btl 1/1 Running 4 3d2h
ceph-pools-audit-1569848400-rrpjq 0/1 Completed 0 12m
ceph-pools-audit-1569848700-jhv5n 0/1 Completed 0 7m26s
ceph-pools-audit-1569849000-cb988 0/1 Completed 0 2m25s
coredns-7cf476b5c8-5x724 1/1 Running 1 3d2h
...
root@myclient:/home/user/remote_wd#
.. note::
Some CLI commands are designed to leave you in a shell prompt, for
example:
.. code-block:: none
root@myclient:/home/user/remote_wd# openstack
or
.. code-block:: none
root@myclient:/home/user/remote_wd# kubectl exec -ti <pod_name> -- /bin/bash
In most cases, the remote CLI will detect and handle these commands
correctly. If you encounter cases that are not handled correctly, you
can force-enable or disable the shell options using the <FORCE_SHELL>
or <FORCE_NO_SHELL> variables before the command.
For example:
.. code-block:: none
root@myclient:/home/user/remote_wd# FORCE_SHELL=true kubectl exec -ti <pod_name> -- /bin/bash
root@myclient:/home/user/remote_wd# FORCE_NO_SHELL=true kubectl exec <pod_name> -- ls
You cannot use both variables at the same time.
************************************
Remote CLI commands with local files
************************************
If you need to run a remote CLI command that references a local file, then
that file must be copied to or created in the working directory specified
in the ``-w`` option on the ``./config_client.sh`` command.
For example:
#. If you have not already done so, source the ``remote_client_platform.sh``
file.
.. code-block:: none
root@myclient:/home/user/remote_wd# source remote_client_platform.sh
#. Copy the file local file and run the remote command.
.. code-block:: none
root@myclient:/home/user# cp /<someDir>/test.yml $HOME/remote_cli_wd/test.yml
root@myclient:/home/user# cd $HOME/remote_cli_wd
root@myclient:/home/user/remote_cli_wd# kubectl -n kube-system create -f test.yml
pod/test-pod created
root@myclient:/home/user/remote_cli_wd# kubectl -n kube-system delete -f test.yml
pod/test-pod deleted
****
Helm
****
Do the following to use helm.
.. note::
For non-admin users, additional configuration is required first as
discussed in |sec-doc|: :ref:`Configuring Remote Helm Client for
Non-Admin Users <configure-remote-helm-client-for-non-admin-users>`.
.. note::
When using helm, any command that requires access to a helm repository
(managed locally) will require that you be in the
``$HOME/remote_cli_wd`` directory and use the ``--home "./.helm"`` option.
#. Do the initial set-up of the helm client.
#. If you have not already done so, source the ``remote_client_platform.sh``
file.
.. code-block:: none
% source remote_client_platform.sh
#. Complete the initial set-up.
.. code-block:: none
% cd $HOME/remote_cli_wd
% helm init --client-only --home "./.helm"
#. Run a helm command.
#. If you have not already done so, source the ``remote_client_platform.sh``
file.
.. code-block:: none
% source remote_client_platform.sh
#. Run a helm command. This example installs WordPress.
.. code-block:: none
% cd $HOME/remote_cli_wd
% helm list
% helm install --name wordpress stable/wordpress --home "./.helm"