Update nextcloud dependency charts to work with k8s 1.16

openappstack!144 upgrades rke to 1.0.0 and k8s to 1.16.

Job #9390 failes with:

    in /var/lib/OpenAppStack/source/helmfiles/helmfile.d/20-nextcloud.yaml: failed processing release oas-test-files: helm exited with status 1:
      Error: [unable to recognize "": no matches for kind "StatefulSet" in version "apps/v1beta1", unable to recognize "": no matches for kind "StatefulSet" in version "apps/v1beta2"]

Turns out some api resources changed in k8s 1.16, i.e the StatefulSet api, from apps/v1beta1/apps/v1beta2 to apps. https://github.com/helm/charts/issues/7680 descibes this issue.

We need to update our nextcloud dependency charts, mainly those listed in that issue:

Impacted charts

At least, impacted charts are:

stable/rabbitmq (fixed in #7848)
stable/redis (fixed in #7686)

mentioned in merge request !21 (merged)

created merge request !21 (merged) to address this issue

mentioned in commit 719a4c38

mentioned in commit 98e3b771

mentioned in commit cf2c24a8

After updating all dependencies I get this error:

    Comparing oas-test-files ../../repos/nextcloud
    in /var/lib/OpenAppStack/source/helmfiles/helmfile.d/20-nextcloud.yaml: failed processing release oas-test-files: helm exited with status 1:
      Error: render error in "nextcloud-onlyoffice/charts/nextcloud/charts/mariadb/templates/master-statefulset.yaml": template: nextcloud-onlyoffice/charts/nextcloud/charts/mariadb/templates/master-statefulset.yaml:87:4: executing "nextcloud-onlyoffice/charts/nextcloud/charts/mariadb/templates/master-statefulset.yaml" at <include "mariadb.imagePullSecrets" .>: error calling include: template: nextcloud-onlyoffice/charts/mariadb/templates/_helpers.tpl:150:82: executing "mariadb.imagePullSecrets" at <.Values.volumePermissions.image.pullSecrets>: nil pointer evaluating interface {}.image
      Error: plugin "diff" exited with error

This is fixed by adding this value to nextcloud/values.yml:

nextcloud:
  mariadb:
    volumePermissions:
      image:
        pullSecrets: []

mentioned in commit d6e6ecc2

Setting this to Blocked because I'm waiting for https://github.com/helm/charts/pull/19229 to get merged.

This PR updates the chart dependencies to versions that support k8s 1.16. Needed because the old versions of the redis and mariadb charts contain calls to deprecated APIs.

I.e., installing the current NC chart v1.8.1 with enabled mariadb to a kubernetes v1.16.3 cluster fails:

root@varac-test:~# helm install --name nc-test --set mariadb.enabled=true stable/nextcloud
Error: validation failed: unable to recognize "": no matches for kind "StatefulSet" in version "apps/v1beta1"

root@varac-test:~# kubectl get nodes
NAME         STATUS   ROLES                      AGE   VERSION
varac-test   Ready    controlplane,etcd,worker   30d   v1.16.3

root@varac-test:~# helm version
Client: &version.Version{SemVer:"v2.16.1", GitCommit:"bbdfe5e7803a12bbdf97e94cd847859890cf4050", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.16.1", GitCommit:"bbdfe5e7803a12bbdf97e94cd847859890cf4050", GitTreeState:"clean"}

This is the reason why current CI for openappstack!144 fails [like this]:

in /var/lib/OpenAppStack/source/helmfiles/helmfile.d/20-nextcloud.yaml: failed processing release oas-test-files: helm exited with status 1:", "  Error: unable to recognize \"\": no matches for kind \"StatefulSet\" in version \"apps/v1beta1\""

added Blocked label

mentioned in commit d3a8739a

mentioned in commit 90458c7d

mentioned in commit 3f64dbce

mentioned in commit 6f72acd2