ooni-probe-cli/CLI/go-build-linux-static
Simone Basso 196ac55493
fix: attempt to make linux builds faster (#911)
This work aims to make Linux builds faster to make https://github.com/ooni/probe/issues/2249 more convenient. Since those builds runs inside Docker, the problem to solve here is to save/restore the Go caches notwithstanding Docker. Because Docker runs as root, we need to modify the build a bit to run as a normal user. Otherwise, we will not be able to save the Go cache using actions/cache@v3. (Other approaches such as using `sudo` are possible but running the build as an unprivileged user actually looks cleaner, so I chose to do that.) While there, add a `.editorconfig`.
2022-08-30 21:13:33 +02:00

95 lines
2.7 KiB
Bash
Executable File

#!/bin/bash
set -euo pipefail
if [[ $# -lt 3 ]]; then
echo "" 1>&2
echo "Docker-based compiler for a Go PACKAGE producing static linux/OONIARCH binaries." 1>&2
echo "" 1>&2
echo "usage: $0 OOGOCACHEDIR OONIARCH PACKAGE..." 1>&2
echo "" 1>&2
echo "OOGOCACHEDIR is the directory under which to put GOCACHE and GOMODCACHE for" 1>&2
echo "this build, which will be mounted and passed to Docker." 1>&2
echo "" 1>&2
echo "OONIARCH must be one of: 386, amd64, arm64, armv6, armv7." 1>&2
echo "" 1>&2
echo "Features:" 1>&2
echo "" 1>&2
echo "* automatically sets -tags=ooni_psiphon_config when possible;" 1>&2
echo "" 1>&2
echo "* if GOLANG_EXTRA_FLAGS is set, pass it to the Go compiler." 1>&2
echo "" 1>&2
echo "Example:" 1>&2
echo "" 1>&2
echo " ./CLI/go-build-linux-static arm64 ./internal/cmd/miniooni" 1>&2
echo "" 1>&2
exit 1
fi
GOLANG_DOCKER_IMAGE=golang:$(cat GOVERSION)-alpine
GOOS=linux
OOGOCACHEDIR=$1
shift
OONIARCH=$1
shift
if [[ $OONIARCH == armv7 ]]; then
GOARCH=arm
GOARM=7
DOCKER_ARCH=arm/v7
elif [[ $OONIARCH == armv6 ]]; then
GOARCH=arm
GOARM=6
DOCKER_ARCH=arm/v6
else
GOARCH=$OONIARCH
GOARM=
DOCKER_ARCH=$OONIARCH
fi
if [[ -f ./internal/engine/psiphon-config.json.age &&
-f ./internal/engine/psiphon-config.key ]]; then
OONI_PSIPHON_TAGS=ooni_psiphon_config
else
OONI_PSIPHON_TAGS=""
fi
# Implementation note: we must run docker as the user that invokes
# it for actions/cache@v3 to be able to cache OOGOCACHEDIR. This
# constraint forces us to run all privileged operations early
# using a Dockerfile, so the build proper runs as $(id -u):$(id -g).
GOCACHE=$OOGOCACHEDIR/oonibuild/v1/$OONIARCH/buildcache
GOMODCACHE=$OOGOCACHEDIR/oonibuild/v1/$OONIARCH/modcache
cat > CLI/Dockerfile << EOF
FROM --platform=linux/$DOCKER_ARCH $GOLANG_DOCKER_IMAGE
RUN apk update
RUN apk upgrade
RUN apk add --no-progress gcc git linux-headers musl-dev
RUN adduser -D -h /home/oobuild -G nobody -u $(id -u) oobuild
ENV HOME=/home/oobuild
EOF
TAGGED_IMAGE=oobuild-$OONIARCH-$(date +%Y%m%d%H)
DOCKER_USER_OPTS="--user $(id -u):$(id -g)"
set -x
mkdir -p $GOCACHE $GOMODCACHE
docker pull --platform linux/$DOCKER_ARCH $GOLANG_DOCKER_IMAGE
if ! docker inspect --type=image $TAGGED_IMAGE 1>/dev/null 2>/dev/null; then
docker build --platform linux/$DOCKER_ARCH -t $TAGGED_IMAGE CLI
fi
docker run --platform linux/$DOCKER_ARCH $DOCKER_USER_OPTS \
-e GOCACHE=/__gocache -e GOMODCACHE=/__gomodcache \
-v "$GOCACHE:/__gocache" -v "$GOMODCACHE:/__gomodcache" \
-e GOARM=$GOARM -e GOOS=$GOOS -e GOARCH=$GOARCH \
-e OONI_PSIPHON_TAGS=$OONI_PSIPHON_TAGS \
-e OONIARCH=$OONIARCH -e GOLANG_EXTRA_FLAGS="${GOLANG_EXTRA_FLAGS:-}" \
-v $(pwd):/ooni -w /ooni $TAGGED_IMAGE ./CLI/go-build-alpine "$@"