Build: Add optional build-args for COMMIT_SHA and BUILD_BRANCH (#66672)

* Remove .git from .dockerignore

* Revert "Remove .git from .dockerignore"

This reverts commit 5a4658f270.

* Add optional COMMIT_SHA and BUILD_BRANCH environment variables

Dockerfile

@@ -31,6 +31,8 @@ RUN yarn build
 
 FROM ${GO_IMAGE} as go-builder
 
+ARG COMMIT_SHA=""
+ARG BUILD_BRANCH=""
 ARG GO_BUILD_TAGS="oss"
 ARG WIRE_TAGS="oss"
 ARG BINGO="true"
@@ -62,7 +64,9 @@ COPY pkg pkg
 COPY scripts scripts
 COPY conf conf
 COPY .github .github
-COPY .git .git
+
+ENV COMMIT_SHA=${COMMIT_SHA}
+ENV BUILD_BRANCH=${BUILD_BRANCH}
 
 RUN make build-go GO_BUILD_TAGS=${GO_BUILD_TAGS} WIRE_TAGS=${WIRE_TAGS}
 

Makefile

@@ -191,6 +191,8 @@ build-docker-full: ## Build Docker image for development.
 	--build-arg BINGO=false \
 	--build-arg GO_BUILD_TAGS=$(GO_BUILD_TAGS) \
 	--build-arg WIRE_TAGS=$(WIRE_TAGS) \
+	--build-arg COMMIT_SHA=$$(git rev-parse --short HEAD) \
+	--build-arg BUILD_BRANCH=$$(git rev-parse --abbrev-ref HEAD) \
 	--tag grafana/grafana$(TAG_SUFFIX):dev \
 	$(DOCKER_BUILD_ARGS)
 
@@ -202,6 +204,8 @@ build-docker-full-ubuntu: ## Build Docker image based on Ubuntu for development.
 	--build-arg BINGO=false \
 	--build-arg GO_BUILD_TAGS=$(GO_BUILD_TAGS) \
 	--build-arg WIRE_TAGS=$(WIRE_TAGS) \
+	--build-arg COMMIT_SHA=$$(git rev-parse --short HEAD) \
+	--build-arg BUILD_BRANCH=$$(git rev-parse --abbrev-ref HEAD) \
 	--build-arg BASE_IMAGE=ubuntu:20.04 \
 	--build-arg GO_IMAGE=golang:1.20.3 \
 	--tag grafana/grafana$(TAG_SUFFIX):dev-ubuntu \

pkg/build/cmd.go

@@ -217,12 +217,22 @@ func ldflags(opts BuildOpts) (string, error) {
 		return "", err
 	}
 
+	commitSha := getGitSha()
+	if v := os.Getenv("COMMIT_SHA"); v != "" {
+		commitSha = v
+	}
+
+	buildBranch := getGitBranch()
+	if v := os.Getenv("BUILD_BRANCH"); v != "" {
+		buildBranch = v
+	}
+
 	var b bytes.Buffer
 	b.WriteString("-w")
 	b.WriteString(fmt.Sprintf(" -X main.version=%s", opts.version))
-	b.WriteString(fmt.Sprintf(" -X main.commit=%s", getGitSha()))
+	b.WriteString(fmt.Sprintf(" -X main.commit=%s", commitSha))
 	b.WriteString(fmt.Sprintf(" -X main.buildstamp=%d", buildStamp))
-	b.WriteString(fmt.Sprintf(" -X main.buildBranch=%s", getGitBranch()))
+	b.WriteString(fmt.Sprintf(" -X main.buildBranch=%s", buildBranch))
 	if v := os.Getenv("LDFLAGS"); v != "" {
 		b.WriteString(fmt.Sprintf(" -extldflags \"%s\"", v))
 	}