Also push container images to github / gcr.io (#2408)

Signed-off-by: Grant Slater <github@firefishy.com>
Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>

.github/workflows/draft_release.yml

@@ -9,6 +9,8 @@ jobs:
   draft_release:
     name: draft release
     runs-on: ubuntu-latest
+    permissions:
+      packages: write
     steps:
 
     - name: Checkout repo
@@ -22,6 +24,13 @@ jobs:
         username: ${{ secrets.DOCKERHUB_USERNAME }}
         password: ${{ secrets.DOCKERHUB_ACCESS_TOKEN }}
 
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
     - name: Set up Go
       uses: actions/setup-go@v4
       with:

.goreleaser.yml

@@ -120,12 +120,23 @@ docker_manifests:
       - *amd_image
       - *386_image
       - *arm_image
+  - name_template: "gcr.io/stackexchange/{{.ProjectName}}:{{ .Version }}"
+    image_templates:
+      - *amd_image
+      - *386_image
+      - *arm_image
   - name_template: "stackexchange/{{.ProjectName}}:latest"
     skip_push: auto
     image_templates:
       - *amd_image
       - *386_image
       - *arm_image
+  - name_template: "gcr.io/stackexchange/{{.ProjectName}}:latest"
+    skip_push: auto
+    image_templates:
+      - *amd_image
+      - *386_image
+      - *arm_image
 checksum:
   name_template: 'checksums.txt'
 snapshot: