Remove separate cleanup image

All required binaries are now present in the main k8up image, no need for external images.

Author: bastjan

class/defaults.yml

@@ -14,10 +14,6 @@ parameters:
         repository: k8up-io/k8up
         tag: v2.13.1
         pullPolicy: IfNotPresent
-      oc:
-        registry: quay.io
-        repository: appuio/oc
-        tag: v4.19
 
     helmReleaseName: k8up
 
@@ -27,7 +23,6 @@ parameters:
     helmValues:
       replicaCount: 1
       image: ${backup_k8up:images:k8up}
-      cleanup: ${backup_k8up:images:oc}
       priorityClassName: ${backup_k8up:priorityClass}
       k8up:
         enableLeaderElection: true

docs/modules/ROOT/pages/references/parameters.adoc

@@ -17,7 +17,7 @@ The default K8up Helm chart version to use.
 type:: dict
 default:: See `class/defaults.yml`
 
-The default Docker image location and tag to use for K8up (key `k8up`) and kubectl (key `kubectl`).
+The default Docker image location and tag to use for K8up (key `k8up`).
 
 Entries in this dict should be dictionaries with keys `registry`, `repository`, and `tag`.
 This structure provides the basis for https://syn.tools/syn/SDDs/0017-maintenance-with-renovate.html[dependency maintenance with Renovate].
@@ -26,9 +26,6 @@ Please customize K8up image location and tag in this dict instead of directly in
 
 The value of `k8up.tag` in this dict is used by the component to select the CRD YAML to download.
 
-The component passes field `kubectl` to the Helm chart in value `cleanup`.
-This allows users to control which container image is used by the cleanup job.
-
 == `helmValues`
 
 [horizontal]

tests/golden/defaults/backup-k8up/backup-k8up/01_k8up_helmchart/k8up/templates/cleanup-hook.yaml

@@ -100,7 +100,7 @@ spec:
           command:
             - sh
             - -c
-          image: quay.io/appuio/oc:v4.19
+          image: ghcr.io/k8up-io/k8up:v2.13.1
           imagePullPolicy: IfNotPresent
           name: k8up-cleanup
       restartPolicy: Never