starlingx/stx-puppet
Code Issues Proposed changes

Run kubeadm command with specific configuration file

Browse Source 
Puppet manifests use the kubeadm command during initializing
kubernetes nodes. However, it is not passing the --kubeconfig
parameter to this command, so the command will search for the
kubeconfig file. Normally it finds this file in
/etc/kubernetes/admin.conf, but if a user accidentally (or
intentionally) creates a config file at /root/.kube/config, this
file can take precedence and cause the kubeadm command to fail.

This commit updated the command with /etc/kubernetes/admin.conf as
its configuration file explicitly.

Change-Id: I2942fa4a275145cc3a1b6c6fdb0f3827a244f1bb
Closes-Bug: 1882678
Signed-off-by: Andy Ning <andy.ning@windriver.com>
This commit is contained in:
Andy Ning 2020-06-11 09:44:21 -04:00
parent b1d78d1434
commit 6f23a813a3
3 changed files with 9 additions and 9 deletions
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2
puppet-manifests/centos/build_srpm.data
View File

@ -1,2 +1,2 @@
SRC_DIR="src"
TIS_PATCH_VER=101
TIS_PATCH_VER=102

14
puppet-manifests/src/modules/platform/manifests/kubernetes.pp
View File

@ -215,7 +215,7 @@ class platform::kubernetes::master::init
$local_registry_auth = "${::platform::dockerdistribution::params::registry_username}:${::platform::dockerdistribution::params::registry_password}" # lint:ignore:140chars
exec { 'pre pull k8s images':
command => "kubeadm config images list --kubernetes-version ${version} --image-repository registry.local:9001/k8s.gcr.io | xargs -i crictl pull --creds ${local_registry_auth} {}", # lint:ignore:140chars
command => "kubeadm --kubeconfig=/etc/kubernetes/admin.conf config images list --kubernetes-version ${version} --image-repository registry.local:9001/k8s.gcr.io | xargs -i crictl pull --creds ${local_registry_auth} {}", # lint:ignore:140chars
logoutput => true,
}
@ -323,7 +323,7 @@ class platform::kubernetes::worker::init
# Get the pause image tag from kubeadm required images
# list and replace with local registry
$get_k8s_pause_img = "kubeadm config images list 2>/dev/null |\
$get_k8s_pause_img = "kubeadm --kubeconfig=/etc/kubernetes/admin.conf config images list 2>/dev/null |\
awk '/^k8s.gcr.io\\/pause:/{print \$1}' | sed 's#k8s.gcr.io#registry.local:9001\\/k8s.gcr.io#'"
$k8s_pause_img = generate('/bin/sh', '-c', $get_k8s_pause_img)
@ -530,7 +530,7 @@ class platform::kubernetes::pre_pull_control_plane_images
$local_registry_auth = "${::platform::dockerdistribution::params::registry_username}:${::platform::dockerdistribution::params::registry_password}" # lint:ignore:140chars
exec { 'pre pull images':
command => "kubeadm config images list --kubernetes-version ${upgrade_to_version} --image-repository=registry.local:9001/k8s.gcr.io | xargs -i crictl pull --creds ${local_registry_auth} {}", # lint:ignore:140chars
command => "kubeadm --kubeconfig=/etc/kubernetes/admin.conf config images list --kubernetes-version ${upgrade_to_version} --image-repository=registry.local:9001/k8s.gcr.io | xargs -i crictl pull --creds ${local_registry_auth} {}", # lint:ignore:140chars
logoutput => true,
}
}
@ -542,7 +542,7 @@ class platform::kubernetes::upgrade_first_control_plane
# The --allow-*-upgrades options allow us to upgrade to any k8s release if necessary
exec { 'upgrade first control plane':
command => "kubeadm upgrade apply ${version} --allow-experimental-upgrades --allow-release-candidate-upgrades -y",
command => "kubeadm --kubeconfig=/etc/kubernetes/admin.conf upgrade apply ${version} --allow-experimental-upgrades --allow-release-candidate-upgrades -y", # lint:ignore:140chars
logoutput => true,
}
@ -571,7 +571,7 @@ class platform::kubernetes::upgrade_control_plane
inherits ::platform::kubernetes::params {
exec { 'upgrade control plane':
command => 'kubeadm upgrade node',
command => 'kubeadm --kubeconfig=/etc/kubernetes/admin.conf upgrade node',
logoutput => true,
}
}
@ -591,7 +591,7 @@ class platform::kubernetes::worker::upgrade_kubelet
# Get the pause image tag from kubeadm required images
# list and replace with local registry
$get_k8s_pause_img = "kubeadm config images list 2>/dev/null |\
$get_k8s_pause_img = "kubeadm --kubeconfig=/etc/kubernetes/admin.conf config images list 2>/dev/null |\
awk '/^k8s.gcr.io\\/pause:/{print \$1}' | sed 's#k8s.gcr.io#registry.local:9001\\/k8s.gcr.io#'"
$k8s_pause_img = generate('/bin/sh', '-c', $get_k8s_pause_img)
@ -604,7 +604,7 @@ class platform::kubernetes::worker::upgrade_kubelet
}
exec { 'upgrade kubelet':
command => 'kubeadm upgrade node',
command => 'kubeadm --kubeconfig=/etc/kubernetes/admin.conf upgrade node',
logoutput => true,
}

2
puppet-manifests/src/modules/platform/templates/kube-apiserver-change-params.erb
View File

@ -25,7 +25,7 @@ python /usr/share/puppet/modules/platform/files/change_kube_apiserver_params.py
<%- end -%>
kubectl --kubeconfig=/etc/kubernetes/admin.conf -n kube-system patch configmap kubeadm-config -p "$(cat <%= @configmap_temp_file %>)"
kubeadm config view > <%= @configmap_temp_file %>
kubeadm --kubeconfig=/etc/kubernetes/admin.conf config view > <%= @configmap_temp_file %>
kubeadm init phase control-plane apiserver --config <%= @configmap_temp_file %>
rm <%= @configmap_temp_file %>
rm <%= @configview_temp_file %>