Update to rke 0.3.2 and k8s v1.15.5-rancher1-2

Closes: #369

ansible/group_vars/all/oas.yml

@@ -22,9 +22,6 @@ onlyoffice_rabbitmq_password: "{{ lookup('password', '{{ cluster_dir }}/secrets/
 
 grafana_admin_password: "{{ lookup('password', '{{ cluster_dir }}/secrets/grafana_admin_password chars=ascii_letters') }}"
 
-# Kubernetes version
-kubernetes_version: "v1.14.3-rancher1-1"
-
 # git repo versions
 git_charts_version: 'HEAD'
 git_local_storage_version: 'HEAD'
@@ -50,11 +47,14 @@ krew:
   checksum: 'sha256:dc2f2e1ec8a0acb6f3e23580d4a8b38c44823e948c40342e13ff6e8e12edb15a'
 
 rke:
+  # You can change the kubernetes version used by rke in
+  # `ansible/group_vars/all/settings.yml.example`
+  #
   # https://github.com/rancher/rke/releases
-  version: '0.2.7'
+  version: '0.3.2'
   # Also possible:
   # checksum: 'sha256:https://github.com/rancher/rke/releases/download/v0.2.4/sha256sum.txt'
-  checksum: 'sha256:7c05727aa3d6f8c4b5f60b057f1fe7883af48d5a778e3b1668f178dda84883ee'
+  checksum: 'sha256:96b366fe1faaa668b3e47f5b6d4bfd6334224e33c21e55dc79ec96f85e0e48e8'
 
 cert_manager:
   # cert-manager requires custom resource definitions applied before installing

ansible/group_vars/all/settings.yml.example

@@ -23,6 +23,7 @@ helmfiles:
 # Optional, custom rke config.
 # I.e. you can set the desired Kubernetes version but please be aware of
 # the [every rke release has only a few supported kubernetes versions](https://rancher.com/docs/rke/latest/en/config-options/#kubernetes-version).
+# See also https://rancher.com/blog/2019/keeping-k8s-current-with-rancher
 #
 # rke_custom_config:
 #   kubernetes_version: "v1.14.3-rancher1-1"

ansible/roles/rke_configuration/files/cluster-defaults.yml

@@ -24,7 +24,9 @@ ingress:
   options: {}
   # Set this to none, so we can install nginx ourselves.
   provider: none
-kubernetes_version: 'v1.14.3-rancher1-1'
+# If `kubernetes_version` is not set, the default kubernetes version for the
+# specified rke version in `ansible/group_vars/all/oas.yml` is used.
+# kubernetes_version: ''
 monitoring:
   options: {}
   provider: ''