ci: enable running nutanix self hosted e2e tests

Author: supershal

.github/workflows/checks.yml

@@ -96,18 +96,18 @@ jobs:
       matrix:
         config:
           - {"provider": "Docker", "kubernetesVersion": "v1.29.9"}
-          - {"provider": "Docker", "kubernetesVersion": "v1.30.6"}
-          - {"provider": "Docker", "kubernetesVersion": "v1.31.2"}
-          # Uncomment below once we have the ability to run e2e tests on other providers from GHA.
-          # - {"provider": "Nutanix", "kubernetesVersion": "v1.29.6"}
+          # - {"provider": "Docker", "kubernetesVersion": "v1.30.6"}
+          # - {"provider": "Docker", "kubernetesVersion": "v1.31.2"}
+          - {"provider": "Nutanix", "kubernetesVersion": "v1.30.5", "osImage": "nkp-rocky-9.4-release-1.30.5-20240930171619"}
           # - {"provider": "AWS", "kubernetesVersion": "v1.29.6"}
       fail-fast: false
     uses: ./.github/workflows/e2e.yml
     with:
       focus: Self-hosted
       provider: ${{ matrix.config.provider }}
       kubernetes-version: ${{ matrix.config.kubernetesVersion }}
-      runs-on: ${{ matrix.config.provider == 'Nutanix' && 'self-hosted-ncn-dind' || 'ubuntu-22.04' }}
+      runs-on: 'self-hosted-ncn-dind'
+      os-image: ${{ matrix.config.provider == 'Nutanix' && matrix.config.osImage || '' }}
     secrets: inherit
     permissions:
       contents: read

.github/workflows/e2e.yml

@@ -63,6 +63,13 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-go-
 
+      - name: Login to Internal Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ secrets.LOCAL_IMAGE_REGISTRY }}
+          username: ${{ secrets.LOCAL_IMAGE_REGISTRY_USERNAME }}
+          password: ${{ secrets.LOCAL_IMAGE_REGISTRY_TOKEN }}
+
       # The default disk size of Github hosted runners is ~14GB, this is not enough to run the e2e tests.
       # Cleanup the disk, see upstream discussion https://github.com/actions/runner-images/issues/2840.
       - name: Cleanup Disk Space
@@ -94,6 +101,7 @@ jobs:
           NUTANIX_MACHINE_TEMPLATE_IMAGE_NAME: ${{ inputs.os-image }}
           KINDEST_IMAGE_TAG: ${{ inputs.kubernetes-version }}
           E2E_KUBERNETES_VERSION: ${{ inputs.kubernetes-version }}
+          LOCAL_IMAGE_REGISTRY: ${{ secrets.LOCAL_IMAGE_REGISTRY }}
 
       - if: success() || failure() # always run even if the previous step fails
         name: Publish e2e test report