multi: add Docker release helper

Author: guggero

Makefile

@@ -159,10 +159,22 @@ app-build: yarn-install
 	@$(call print, "Building production app.")
 	cd app; yarn build
 
-release: app-build
+release: app-build go-release
+
+go-release:
 	@$(call print, "Creating release of lightning-terminal.")
 	./release.sh build-release "$(VERSION_TAG)" "$(BUILD_SYSTEM)" "$(LND_RELEASE_TAGS)" "$(RELEASE_LDFLAGS)"
 
+docker-release: app-build
+	@$(call print, "Building release helper docker image.")
+	if [ "$(tag)" = "" ]; then echo "Must specify tag=<commit_or_tag>!"; exit 1; fi
+
+	docker build -t litd-release-helper -f make/builder.Dockerfile make/
+
+	# Run the actual compilation inside the docker image. We pass in all flags
+	# that we might want to overwrite in manual tests.
+	$(DOCKER_RELEASE_HELPER) make go-release tag="$(tag)" sys="$(sys)" COMMIT="$(COMMIT)" 
+
 docker-tools:
 	@$(call print, "Building tools docker image.")
 	docker build -q -t litd-tools $(TOOLS_DIR)

make/builder.Dockerfile

@@ -0,0 +1,28 @@
+FROM golang:1.22.6-bookworm
+
+MAINTAINER Olaoluwa Osuntokun <laolu@lightning.engineering>
+
+# Golang build related environment variables that are static and used for all
+# architectures/OSes.
+ENV GODEBUG netdns=cgo
+ENV GO111MODULE=auto
+ENV CGO_ENABLED=0
+
+# Set up cache directories. Those will be mounted from the host system to speed
+# up builds. If go isn't installed on the host system, those will fall back to
+# temp directories during the build (see make/release_flags.mk).
+ENV GOCACHE=/tmp/build/.cache
+ENV GOMODCACHE=/tmp/build/.modcache
+
+RUN apt-get update && apt-get install -y \
+    git \
+    make \
+    tar \
+    zip \
+    bash \
+  && mkdir -p /tmp/build/litd \
+  && mkdir -p /tmp/build/.cache \
+  && mkdir -p /tmp/build/.modcache \
+  && chmod -R 777 /tmp/build/
+
+WORKDIR /tmp/build/litd

make/release_flags.mk

@@ -2,6 +2,16 @@
 VERSION_TAG = $(shell git describe --abbrev=40 --broken --tags --always)
 VERSION_CHECK = @$(call print, "Building master with date version tag")
 
+DOCKER_RELEASE_HELPER = docker run \
+  -it \
+  --rm \
+  --user $(shell id -u):$(shell id -g) \
+  -v $(shell pwd):/tmp/build/litd \
+  -v $(shell bash -c "go env GOCACHE || (mkdir -p /tmp/go-cache; echo /tmp/go-cache)"):/tmp/build/.cache \
+  -v $(shell bash -c "go env GOMODCACHE || (mkdir -p /tmp/go-modcache; echo /tmp/go-modcache)"):/tmp/build/.modcache \
+  -e SKIP_VERSION_CHECK \
+  litd-release-helper
+
 BUILD_SYSTEM = darwin-amd64 \
 darwin-arm64 \
 linux-386 \

release.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Simple bash script to build basic lnd tools for all the platforms
+# Simple bash script to build basic litd tools for all the platforms
 # we support with the golang cross-compiler.
 #
 # Copyright (c) 2016 Company 0, LLC.
@@ -114,6 +114,9 @@ function build_release() {
   reproducible_tar_gzip ${package_source}
   mv "${package_source}.tar.gz" "${package_source}-$tag.tar.gz"
 
+  echo "Current git status before starting build: "
+  git status
+
   for i in $sys; do
     os=$(echo $i | cut -f1 -d-)
     arch=$(echo $i | cut -f2 -d-)