propagate env var from github action

.github/workflows/docker.yml

@@ -32,4 +32,6 @@ jobs:
           context: .
           push: false
           tags: pgweb:latest
-          platforms: linux/amd64,linux/arm64,linux/arm/v5,linux/arm/v7
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          build-args: |
+            "CGO_ENABLED=${{ env.CGO_ENABLED }}"

Dockerfile

@@ -3,6 +3,10 @@
 # ------------------------------------------------------------------------------
 FROM golang:1.20-bullseye AS build
 
+# Set default build argument for CGO_ENABLED=0. This can be overriden by build-args
+ARG CGO_ENABLED=0
+ENV CGO_ENABLED ${CGO_ENABLED}
+
 WORKDIR /build
 
 RUN git config --global --add safe.directory /build
@@ -12,7 +16,7 @@ COPY Makefile main.go ./
 COPY static/ static/
 COPY pkg/ pkg/
 COPY .git/ .
-RUN make build STATIC=true
+RUN make build
 
 # ------------------------------------------------------------------------------
 # Fetch signing key

Makefile

@@ -11,10 +11,6 @@ LDFLAGS += -X $(PKG)/pkg/command.GitCommit=$(GIT_COMMIT)
 LDFLAGS += -X $(PKG)/pkg/command.BuildTime=$(BUILD_TIME)
 LDFLAGS += -X $(PKG)/pkg/command.GoVersion=$(GO_VERSION)
 
-ifeq ($(STATIC), true)
-	CGO_ENABLED = 0
-endif
-
 usage:
 	@echo ""
 	@echo "Task                 : Description"
@@ -46,16 +42,16 @@ dev:
 	@echo "You can now execute ./pgweb"
 
 build:
-	CGO_ENABLED=$(CGO_ENABLED) go build -ldflags '${LDFLAGS}'
+	go build -ldflags '${LDFLAGS}'
 	@echo "You can now execute ./pgweb"
 
 install:
-	CGO_ENABLED=$(CGO_ENABLED) go install -ldflags '${LDFLAGS}'
+	go install -ldflags '${LDFLAGS}'
 	@echo "You can now execute pgweb"
 
 release: clean
 	@echo "Building binaries..."
-	@CGO_ENABLED=$(CGO_ENABLED) LDFLAGS='${LDFLAGS}' ./script/build_all.sh
+	@LDFLAGS='${LDFLAGS}' ./script/build_all.sh
 
 clean:
 	@echo "Removing all artifacts"