Add FAR disconnected periodic job config for system-tests

Add weekly disconnected E2E test job for the FAR (fence-agents-remediation)
operator. The job mirrors operator images to a private registry using the
medik8s-disconnected-catalogsource step (PR #79687), then installs FAR via
OLM and runs the E2E suite on an air-gapped AWS cluster.

Schedule: Sunday 10:00 UTC (staggered after connected FAR at 04:00,
connected SBR at 06:00, and disconnected SBR at 08:00).

Jira: RHWA-1038

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ugreener

ci-operator/config/medik8s/system-tests/medik8s-system-tests-main__4.22-disconnected.yaml

@@ -0,0 +1,51 @@
+base_images:
+  upi-installer:
+    name: "4.22"
+    namespace: ocp
+    tag: upi-installer
+build_root:
+  from_repository: true
+releases:
+  latest:
+    candidate:
+      product: ocp
+      stream: nightly
+      version: "4.22"
+resources:
+  '*':
+    requests:
+      cpu: 500m
+      memory: 1000Mi
+tests:
+- as: e2e-far-weekly-aws-disconnected
+  capabilities:
+  - intranet
+  cron: 0 10 * * 0
+  steps:
+    cluster_profile: medik8s-aws
+    env:
+      BASE_DOMAIN: ocp-ci.medik8s-ci.devcluster.openshift.com
+      ECO_TEST_FEATURES: far-operator
+      MEDIK8S_PACKAGES: fence-agents-remediation
+      OCP_VERSION: "422"
+      OO_CHANNEL: stable
+      OPERATORS: fence-agents-remediation
+    test:
+    - ref: medik8s-disconnected-catalogsource
+    - ref: medik8s-operator-subscribe
+    - as: e2e-test
+      cli: latest
+      commands: make run-tests
+      env:
+      - name: ECO_TEST_FEATURES
+      from: src
+      resources:
+        requests:
+          cpu: 100m
+          memory: 200Mi
+    workflow: openshift-e2e-aws-disconnected
+zz_generated_metadata:
+  branch: main
+  org: medik8s
+  repo: system-tests
+  variant: 4.22-disconnected

ci-operator/jobs/medik8s/system-tests/medik8s-system-tests-main-periodics.yaml

@@ -1,4 +1,90 @@
 periodics:
+- agent: kubernetes
+  cron: 0 10 * * 0
+  decorate: true
+  decoration_config:
+    sparse_checkout_files:
+    - .ci-operator.yaml
+  extra_refs:
+  - base_ref: main
+    org: medik8s
+    repo: system-tests
+    sparse_checkout_files:
+    - .ci-operator.yaml
+  labels:
+    capability/intranet: intranet
+    ci-operator.openshift.io/cloud: aws
+    ci-operator.openshift.io/cloud-cluster-profile: medik8s-aws
+    ci-operator.openshift.io/variant: 4.22-disconnected
+    ci.openshift.io/generator: prowgen
+    job-release: "4.22"
+    pj-rehearse.openshift.io/can-be-rehearsed: "true"
+  name: periodic-ci-medik8s-system-tests-main-4.22-disconnected-e2e-far-weekly-aws-disconnected
+  spec:
+    containers:
+    - args:
+      - --gcs-upload-secret=/secrets/gcs/service-account.json
+      - --image-import-pull-secret=/etc/pull-secret/.dockerconfigjson
+      - --lease-server-credentials-file=/etc/boskos/credentials
+      - --report-credentials-file=/etc/report/credentials
+      - --secret-dir=/secrets/ci-pull-credentials
+      - --target=e2e-far-weekly-aws-disconnected
+      - --variant=4.22-disconnected
+      command:
+      - ci-operator
+      env:
+      - name: HTTP_SERVER_IP
+        valueFrom:
+          fieldRef:
+            fieldPath: status.podIP
+      image: quay-proxy.ci.openshift.org/openshift/ci:ci_ci-operator_latest
+      imagePullPolicy: Always
+      name: ""
+      ports:
+      - containerPort: 8080
+        name: http
+      resources:
+        requests:
+          cpu: 10m
+      volumeMounts:
+      - mountPath: /etc/boskos
+        name: boskos
+        readOnly: true
+      - mountPath: /secrets/ci-pull-credentials
+        name: ci-pull-credentials
+        readOnly: true
+      - mountPath: /secrets/gcs
+        name: gcs-credentials
+        readOnly: true
+      - mountPath: /secrets/manifest-tool
+        name: manifest-tool-local-pusher
+        readOnly: true
+      - mountPath: /etc/pull-secret
+        name: pull-secret
+        readOnly: true
+      - mountPath: /etc/report
+        name: result-aggregator
+        readOnly: true
+    serviceAccountName: ci-operator
+    volumes:
+    - name: boskos
+      secret:
+        items:
+        - key: credentials
+          path: credentials
+        secretName: boskos-credentials
+    - name: ci-pull-credentials
+      secret:
+        secretName: ci-pull-credentials
+    - name: manifest-tool-local-pusher
+      secret:
+        secretName: manifest-tool-local-pusher
+    - name: pull-secret
+      secret:
+        secretName: registry-pull-credentials
+    - name: result-aggregator
+      secret:
+        secretName: result-aggregator
 - agent: kubernetes
   cluster: build05
   cron: 0 4 * * 0