Remove initContainer backup approach

app-of-apps/keycloak.jsonnet

@@ -10,22 +10,6 @@ appDef.helmApplication(
             enabled: true,
             hostname: "keycloak.avril"
         },
-        initContainers: [
-            // https://stackoverflow.com/a/70947232/1040915
-            {
-                name: "add-backup-to-crontab",
-                image: "ubuntu",
-                command: [
-                    "/bin/sh",
-                    "-c",
-                    'apt update; apt install -y cron; echo "* * * * * /opt/bitnami/keycloak/bin/kc.sh export --file /backup/realm-export-$(date +%s).json --realm new-realm" | crontab -'
-                ],
-                securityContext: {
-                    allowPrivilegeEscalation: true,
-                    runAsUser: 0
-                }
-            }
-        ],
         image: {
             tag: "24.0.2"
         },