Add Red Hat UBI base image for imps-refresher image

Signed-off-by: Vikram Hosakote <[email protected]>

.github/workflows/ci.yaml

@@ -67,7 +67,7 @@ jobs:
       - name: Check dependency licenses
         env:
           GITHUB_TOKEN: ${{ github.token }} # Note: this is required for licensei auth in steps to avoid rate-limiting.
-        run: make license-check
+        run: go mod vendor && make license-check
 
       - name: Run lint
         run: GOLANGCI_VERSION=${{ env.GOLANGCI_LINT_VERSION }} make lint

.github/workflows/docker_refresher.yml

@@ -61,3 +61,15 @@ jobs:
           cache-to: type=local,dest=/tmp/.buildx-cache
           tags: |
             ghcr.io/banzaicloud/imagepullsecrets-refresher:${{ steps.imagetag.outputs.value }}
+      - name: Build imagepullsecrets refresher with Red Hat UBI base image
+        uses: docker/build-push-action@v3
+        with:
+          file: Dockerfile-refresher
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
+          build-args: |
+            FROM_IMAGE=redhat/ubi8-micro
+          tags: |
+            ghcr.io/banzaicloud/imagepullsecrets-refresher-rh-ubi8:${{ steps.imagetag.outputs.value }}

Dockerfile-refresher

@@ -38,6 +38,7 @@ WORKDIR /
 COPY --from=builder /etc/nsswitch.conf.build /etc/nsswitch.conf
 COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /workspace/LICENSE.md /licenses/LICENSE.md
 
 COPY --from=builder /workspace/manager .
 USER nobody:nobody