reverting back the support for s390x which has been removed temporarily(

quay#3157)

.github/workflows/build-and-publish.yaml

@@ -39,6 +39,8 @@ jobs:
           BUILDER_PPC64LE_SSH_CONFIG: ${{ secrets.BUILDER_PPC64LE_SSH_CONFIG }}
           BUILDER_PPC64LE_SSH_KEY: ${{ secrets.BUILDER_PPC64LE_SSH_KEY }}
           BUILDER_PPC64LE_SSH_KNOWN_HOSTS: ${{ secrets.BUILDER_PPC64LE_SSH_KNOWN_HOSTS }}
+          BUILDER_S390X_SSH_HOST: ${{ secrets.BUILDER_S390X_SSH_HOST }}
+          BUILDER_S390X_SSH_KEY: ${{ secrets.BUILDER_S390X_SSH_KEY }}
         run: |
           mkdir ~/.ssh
           chmod 700 ~/.ssh
@@ -50,6 +52,10 @@ jobs:
           touch ~/.ssh/id_builder_ppc64le
           chmod 600 ~/.ssh/id_builder_ppc64le
           echo "$BUILDER_PPC64LE_SSH_KEY" >~/.ssh/id_builder_ppc64le
+
+          touch ~/.ssh/id_builder_s390x
+          chmod 600 ~/.ssh/id_builder_s390x
+          echo "$BUILDER_S390X_SSH_KEY" > ~/.ssh/id_builder_s390x
           
           touch ~/.ssh/known_hosts
           chmod 600 ~/.ssh/known_hosts
@@ -69,7 +75,13 @@ jobs:
             IdentityFile "~/.ssh/id_builder_ppc64le"
           $BUILDER_PPC64LE_SSH_CONFIG
           
-
+          Host builder-s390x
+            StrictHostKeyChecking no
+            HostName $BUILDER_S390X_SSH_HOST
+            User wfuser
+            IdentityFile "~/.ssh/id_builder_s390x"
+          END
+          
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
         with:
@@ -79,7 +91,8 @@ jobs:
               platforms: linux/arm64
             - endpoint: ssh://builder-ppc64le
               platforms: linux/ppc64le
-
+            - endpoint: ssh://builder-s390x
+              platforms: linux/s390x
       - name: Login to Quay.io
         uses: docker/login-action@v1
         with:
@@ -93,7 +106,6 @@ jobs:
         env:
           TAG: ${{ steps.version-from-branch.outputs.version }}${{ env.TAG_SUFFIX }}
         with:
-          platforms: linux/amd64,linux/arm64,linux/ppc64le
+          platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x
           push: true
           tags: ${{ env.REGISTRY }}/${{ env.REPO_NAME }}:${{ github.event.inputs.tag || env.TAG }}
-