Add a custom GitHub actions script

We don't actually *build* Envoy, we just add a script that we run when
the image starts up.

Signed-off-by: Toby Cabot <[email protected]>

.github/workflows/build.yaml

@@ -0,0 +1,35 @@
+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+
+    steps:
+    - uses: actions/checkout@v3
+      with: {submodules: recursive}
+
+    - uses: actions/setup-go@v4
+      with: {go-version: '=1.19.8'}
+
+    - name: Decide what we're going to call this
+      run: |
+        TAG_SPECIFIC=${{ github.ref_name }}
+        # if we're building from a branch (i.e., not a tag) then add
+        # the short sha so we can have more than one build per branch
+        if [[ ${{ github.ref }} != refs/tags/* ]]; then
+          TAG_SPECIFIC=${TAG_SPECIFIC}-$(git rev-parse --short HEAD)
+        fi
+        echo $TAG_SPECIFIC
+        echo "TAG_SPECIFIC=$TAG_SPECIFIC" >> $GITHUB_ENV
+
+    - name: Make
+      run: |
+        make SUFFIX=${TAG_SPECIFIC} image-build
+
+    - name: Push
+      if: startsWith(github.ref, 'refs/tags/')
+      run: |
+        docker login -u epic-gateway+github_actions -p ${{ secrets.QUAY_EPIC_GATEWAY }} quay.io
+        make SUFFIX=${TAG_SPECIFIC} image-push

.gitlab-ci.yml

@@ -20,4 +20,4 @@ docker:
   - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
 
   script:
-  - make SUFFIX=${TAG_SPECIFIC} GITLAB_USER=gitlab-ci-token GITLAB_PASSWORD=${CI_JOB_TOKEN} install
+  - make SUFFIX=${TAG_SPECIFIC} GITLAB_USER=gitlab-ci-token GITLAB_PASSWORD=${CI_JOB_TOKEN} docker-build docker-push

Makefile

@@ -1,9 +1,8 @@
-REPO ?= registry.gitlab.com/acnodal/epic
-PREFIX = envoy
-SUFFIX = ${USER}-dev
+REPO ?= quay.io/epic-gateway
+PREFIX ?= envoy
+SUFFIX ?= ${USER}-dev
 
-TAG=${REPO}/${PREFIX}:${SUFFIX}
-DOCKERFILE=Dockerfile
+TAG ?= ${REPO}/${PREFIX}:${SUFFIX}
 
 ##@ Default Goal
 .PHONY: help
@@ -12,16 +11,19 @@ help: ## Display this help
 	@echo "  make <goal> [VAR=value ...]"
 	@echo
 	@echo "Variables"
-	@echo "  PREFIX Docker tag prefix (useful to set the docker registry)"
-	@echo "  SUFFIX Docker tag suffix (the part after ':')"
+	@echo "  REPO   The registry part of the Docker tag"
+	@echo "  PREFIX Image tag prefix (usually the image name)"
+	@echo "  SUFFIX Image tag suffix (the part after ':')"
 	@awk 'BEGIN {FS = ":.*##"}; \
 		/^[a-zA-Z0-9_-]+:.*?##/ { printf "  %-15s %s\n", $$1, $$2 } \
 		/^##@/ { printf "\n%s\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
 
 ##@ Development Goals
 
-image: ## Build the Docker image
-	docker build --file=${DOCKERFILE} --tag=${TAG} .
+.PHONY: image-build
+image-build: ## Build the Docker image
+	docker build --tag=${TAG} ${DOCKER_BUILD_OPTIONS} .
 
-install:	image ## Push the image to the repo
+.PHONY: image-test
+image-push:	## Push the image to the repo
 	docker push ${TAG}

README.md

@@ -1,7 +1,5 @@
-This is the Envoy used in the EPIC.  
+This is the Envoy used in the EPIC Gateway.
 
 It bootstraps its config from the container filesystem at the standard location: /etc/envoy/envoy.yaml.
 
-The container includes some basic stuff for troubleshooting networking not found in the containers from envoy
-
-Note: the container registry is private, you will need to authenticate
+The container includes some basic stuff for troubleshooting networking not found in the containers from envoy.