feat: add DockerHub builds [VAX-542] (#57)

Publish tagged commits as images to docker hub

Co-authored-by: define-null <vasilii@electric-sql.com>

.buildkite/build_vaxine.yml

@@ -1,5 +1,6 @@
 env:
-  DOCKER_REPO: europe-docker.pkg.dev/vaxine/vaxine-io
+  DOCKER_REPO: europe-docker.pkg.dev/vaxine/electric-sql
+  DOCKERHUB_REPO: electricsql
   IMAGE_NAME: vaxine
 
 agent:
@@ -9,4 +10,11 @@ agent:
 steps:
   - label: ":whale: Build & push the vaxine container"
     command: make buildkite-build-and-push
-
+  - wait
+  - label: ":rocket: Publish the image to DockerHub"
+    if: build.tag =~ /^[0-9]+\.[0-9]+\.[0-9]+/
+    env:
+      DOCKER_REPO: electricsql
+    command:
+      - export ELECTRIC_IMAGE_NAME="${DOCKERHUB_REPO}/${IMAGE_NAME}"
+      - make buildkite-build-and-push

Makefile

@@ -136,10 +136,12 @@ docker-stop:
 send-coverage:
 	${REBAR} as test coveralls send
 
+ifdef BUILDKITE_COMMIT
+IMAGE_TAG ?= $(shell git describe --abbrev=7 --tags --always --first-parent)
 buildkite-build-and-push:
-	SHORTSHA=`echo "${BUILDKITE_COMMIT}" | head -c 7`; \
 	ARG=""; \
 	if [ "${BUILDKITE_BRANCH}" = "main" ]; then \
 		ARG="-t ${DOCKER_REPO}/${IMAGE_NAME}:latest"; \
 	fi; \
-	docker buildx build --platform linux/arm64/v8,linux/amd64 --push -f Dockerfile.vaxine $$ARG -t ${DOCKER_REPO}/${IMAGE_NAME}:$$SHORTSHA .
+	docker buildx build --platform linux/arm64/v8,linux/amd64 --push -f Dockerfile.vaxine $$ARG -t ${DOCKER_REPO}/${IMAGE_NAME}:${IMAGE_TAG} .
+endif