Caddy SPA Docker Build

Caddyfile

{
	admin off
	log {
		format json
	}
}

:80 {
	try_files {path} /
	header /assets/img/* Cache-Control max-age=31536000
	header /assets/js/* Cache-Control max-age=31536000
	header /assets/css/* Cache-Control max-age=31536000
	header /assets/fonts/* Cache-Control max-age=31536000
	encode gzip
	root * /usr/share/caddy
	file_server
}

docker-build.sh

#!/bin/sh

set -e

APP_VERSION=${BITBUCKET_TAG}
BUILD_NUMBER=${BITBUCKET_BUILD_NUMBER:=unknown}
BUILDER=${USER}@$(hostname 2> /dev/null && echo $? | tail -0 || echo '@ci')
BUILD_DATE=$(date '+%Y-%m-%d__%H:%M:%S')
COMMIT=$(git rev-parse HEAD 2> /dev/null && echo $? | tail -0 || echo "$BITBUCKET_COMMIT")
BRANCH=$(git rev-parse --abbrev-ref HEAD 2> /dev/null && echo $? | tail -0 || echo '')

if [ -z "$APP_VERSION" ]
then
  APP_VERSION=$(node -p "require('./package.json').version" 2> /dev/null && echo $? | tail -0 || echo "$BUILD_NUMBER@$BUILD_DATE")
fi

if [ -z "$BRANCH" ]
then
  BRANCH=${BITBUCKET_TAG:=$BITBUCKET_BRANCH}
fi

if [ -z "$DOCKER_BUILDKIT" ]
then
  if [ -z "$CI" ]
  then
    DOCKER_BUILDKIT=1
  fi
fi

GIT_HASH=${BRANCH}@${COMMIT}

echo '@> Building image...'
echo "@=> APP_VERSION=${APP_VERSION}"
echo "@=> GIT_HASH=${GIT_HASH}"
echo "@=> BUILDER=${BUILDER}"
echo "@=> BUILD_DATE=${BUILD_DATE}"
echo "@=> BUILD_NUMBER=${BUILD_NUMBER}"
echo "@=> DOCKER_BUILDKIT=${DOCKER_BUILDKIT}"
echo ''

DOCKER_BUILDKIT=${DOCKER_BUILDKIT} docker build --progress=plain -t my-app:latest \
--build-arg APP_VERSION="${APP_VERSION}" \
--build-arg GIT_HASH="${GIT_HASH}" \
--build-arg BUILDER="${BUILDER}" \
--build-arg BUILD_DATE="${BUILD_DATE}" \
--build-arg BUILD_NUMBER=${BUILD_NUMBER} \
.

echo '@> Done'

Dockerfile

FROM node:14-alpine as builder

WORKDIR /app

# dependencies
COPY ./package.* ./yarn.* /app/
RUN yarn --non-interactive

# build
COPY src/ src/
RUN yarn build

FROM caddy:2.4-alpine

COPY --from=builder /app/dist /usr/share/caddy
COPY Caddyfile /etc/caddy/Caddyfile

EXPOSE 80

ARG APP_VERSION=unknown
ARG GIT_HASH=unknown
ARG BUILDER=unknown
ARG BUILD_NUMBER=unknown
ARG BUILD_DATE=unknown

# Labels.
LABEL name="my-app-name" \
  description="My App Description" \
  vcs.url="https://bitbucket.org/company/my-app" \
  vcs.ref=$GIT_HASH \
  version=$APP_VERSION \
  build.date=$BUILD_DATE \
  build.number=$BUILD_NUMBER \
  build.builder=$BUILDER