feat: Release container images into Github Packages repository (#128)

Author: Miguel Martínez Triviño

.github/workflows/goreleaser.yml

@@ -16,6 +16,12 @@ jobs:
         uses: actions/checkout@v2
       - name: Unshallow
         run: git fetch --prune --unshallow
+      - name: Docker login to Github Packages
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Set up Go
         uses: actions/setup-go@v1
         with:

.goreleaser.yml

@@ -7,6 +7,17 @@ builds:
     ldflags:
       - -X github.com/vmware-tanzu/asset-relocation-tool-for-kubernetes/cmd.Version={{ .Version }}
     binary: relok8s
+dockers:
+  -
+    dockerfile: Dockerfile
+    image_templates:
+      - "ghcr.io/vmware-tanzu/asset-relocation-tool-for-kubernetes:{{ .Tag }}"
+      - "ghcr.io/vmware-tanzu/asset-relocation-tool-for-kubernetes:latest"
+    build_flag_templates:
+      - "--build-arg"
+      - "VERSION={{ .Version }}"
+    extra_files:
+      - assets/docker-login.sh
 archives:
   - replacements:
       386: i386

Dockerfile

@@ -1,23 +1,17 @@
 # Copyright 2021 VMware, Inc.
 # SPDX-License-Identifier: BSD-2-Clause
-FROM golang:1.17 as builder
-ARG VERSION
-
-COPY . /asset-relocation-tool-for-kubernetes/
-ENV GOPATH=
-ENV PATH="${PATH}:/root/go/bin"
-WORKDIR /asset-relocation-tool-for-kubernetes/
-RUN make test && make build
 
+# Distributes the relok8s binary previously crafted by the release process
+# as part of the CI release action
 FROM photon:4.0
+ARG VERSION
+ENV VERSION=${VERSION}
+
 LABEL description="Asset Relocation Tool for Kubernetes"
 LABEL maintainer="[email protected]"
-
-WORKDIR /
-
-RUN yum -y install diffutils jq
+LABEL org.opencontainers.image.source https://github.com/vmware-tanzu/asset-relocation-tool-for-kubernetes
 
 COPY assets/docker-login.sh /usr/local/bin/docker-login.sh
-COPY --from=builder /asset-relocation-tool-for-kubernetes/build/relok8s /usr/local/bin/relok8s
+COPY ./relok8s /usr/local/bin
 ENTRYPOINT ["/usr/local/bin/relok8s"]