Upgrade kubespray from 2.12.6 to 2.14.1

- Replace move of ansible.cfg from kubespray distribution to
  /etc/ansible with ANSIBLE_CONFIG environment variable.  Ansible
  modifies ansible.cfg during installation, and the paths in it are
  relative.

- kubespray 2.14.1 requires a kubernetes version > 1.16.  Use the
  default versions of kubernetes and helm provided by kubespray
  2.14.1.

- kubespray 2.14.1 replaces helm 2 with helm 3.  This removes support
  for helm init and helm serve.  It is no longer necessary to call
  helm init, and the helm serve repository is replaced with file
  relative URLs.  This also triggered a subsequent update of the
  kubernetes-helm ansible module to include the newer helm versions.

- Add "storageType: hostPath" to etcd/values.yaml.  Helm deploy of
  etcd will fail without this due to nil
  PersistentVolume.metadata.labels.type.

- The mitogen module used by kubespray/ansible requires python2 on the
  hosts.  Use the linear strategy to bypass mitogen and install
  python2 on the cluster hosts.

Issue-ID: MULTICLOUD-1230
Signed-off-by: Todd Malsbary <todd.malsbary@intel.com>
Change-Id: I9f50bb4e123fdcacab6b6a97e79cd09fb5c96634

2 files changed, 8 insertions, 7 deletions

diff --git a/kud/hosting_providers/containerized/installer.sh b/kud/hosting_providers/containerized/installer.sh
index ae16b1dd..6fd7c915 100755
--- a/kud/hosting_providers/containerized/installer.sh
+++ b/kud/hosting_providers/containerized/installer.sh
@@ -36,7 +36,6 @@ function _install_ansible {
     pip install --no-cache-dir ansible==$version
 }
 
-# install_k8s() - Install Kubernetes using kubespray tool
 function install_kubespray {
     echo "Deploying kubernetes"
     version=$(grep "kubespray_version" ${kud_playbooks}/kud-vars.yml | \
@@ -50,7 +49,6 @@ function install_kubespray {
     _install_ansible
     wget https://github.com/kubernetes-incubator/kubespray/archive/$tarball
     tar -C $dest_folder -xzf $tarball
-    mv $dest_folder/kubespray-$version/ansible.cfg /etc/ansible/ansible.cfg
     chown -R root:root $dest_folder/kubespray-$version
     mkdir -p ${local_release_dir}/containers
     rm $tarball
@@ -79,11 +77,14 @@ function install_kubespray {
     fi
 }
 
+# install_k8s() - Install Kubernetes using kubespray tool
 function install_k8s {
-    version=$(grep "kubespray_version" ${kud_playbooks}/kud-vars.yml | \
-        awk -F ': ' '{print $2}')
     local cluster_name=$1
     ansible-playbook $verbose -i \
+        $kud_inventory $kud_playbooks/preconfigure-kubespray.yml \
+        --become --become-user=root | \
+        tee $cluster_log/setup-kubernetes.log
+    ansible-playbook $verbose -i \
         $kud_inventory $dest_folder/kubespray-$version/cluster.yml \
         -e cluster_name=$cluster_name --become --become-user=root | \
         tee $cluster_log/setup-kubernetes.log
@@ -199,6 +200,9 @@ function install_pkg {
 }
 
 function install_cluster {
+    version=$(grep "kubespray_version" ${kud_playbooks}/kud-vars.yml | \
+        awk -F ': ' '{print $2}')
+    export ANSIBLE_CONFIG=$dest_folder/kubespray-$version/ansible.cfg
     install_k8s $1
     if [ ${2:+1} ]; then
         echo "install default addons and $2"
diff --git a/kud/hosting_providers/containerized/inventory/group_vars/k8s-cluster.yml b/kud/hosting_providers/containerized/inventory/group_vars/k8s-cluster.yml
index 5560dd97..0a2953ce 100644
--- a/kud/hosting_providers/containerized/inventory/group_vars/k8s-cluster.yml
+++ b/kud/hosting_providers/containerized/inventory/group_vars/k8s-cluster.yml
@@ -49,9 +49,6 @@ kubectl_localhost: true
 local_volumes_enabled: true
 local_volume_provisioner_enabled: true
 
-## Change this to use another Kubernetes version, e.g. a current beta release
-kube_version: v1.16.9
-
 # Helm deployment
 helm_enabled: true