push the image

Author: anthony-nhs

.github/workflows/build_multi_arch_image.yml

@@ -45,3 +45,27 @@ jobs:
                 name: eps-devcontainer-base-latest-${{ matrix.arch }}.img
                 path: |
                     eps-devcontainer-base-latest-${{ matrix.arch }}.img
+
+    publish_image:
+        needs: build_image
+        runs-on: ubuntu-22.04
+        permissions:
+          contents: read
+          packages: write
+          attestations: write
+          id-token: write
+        steps:
+            - name: Download amd64 images
+              uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131
+              with:
+                name: eps-devcontainer-base-latest-amd64.img
+            - name: Download arm64 images
+              uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131
+              with:
+                name: eps-devcontainer-base-latest-arm64.img
+            - name: Load and push multi-arch image
+              run: |
+                  docker load -i eps-devcontainer-base-latest-amd64.img
+                  docker load -i eps-devcontainer-base-latest-arm64.img
+                  docker manifest create ghcr.io/nhsdigital/eps-devcontainer-base:latest ghcr.io/nhsdigital/eps-devcontainer-base:latest-amd64 ghcr.io/nhsdigital/eps-devcontainer-base:latest-arm64
+                  docker manifest push ghcr.io/nhsdigital/eps-devcontainer-base:latest