# =======================================
# ===== Build image for the backend =====
# =======================================
FROM golang:1.13-alpine AS builder-backend

ARG BUILD_TAG
ARG BUILD_COMMIT
ARG CC_VERSION="v14"

# gcc cross-compiler is required for building go-sqlite3
RUN apk --no-cache add curl && \
    curl -Lfs -o /tmp/gcc-7.3.0-arm-linux-musleabihf.tar.xz "https://github.com/just-containers/musl-cross-make/releases/download/${CC_VERSION}/gcc-7.3.0-arm-linux-musleabihf.tar.xz" && \
    tar xf /tmp/gcc-7.3.0-arm-linux-musleabihf.tar.xz -C /

WORKDIR /go/src/app

COPY go.mod go.sum ./

RUN go mod download

COPY cmd cmd
COPY internal internal

# Set the build version and time
RUN echo "Write tag ${BUILD_TAG} and commit ${BUILD_COMMIT} in binary." && \
    BUILD_TIME=`date +"%Y-%m-%d %T"` && \
    sed -i "s/__BUILD_TAG__/${BUILD_TAG}/" cmd/authelia/constants.go && \
    sed -i "s/__BUILD_COMMIT__/${BUILD_COMMIT}/" cmd/authelia/constants.go && \
    sed -i "s/__BUILD_TIME__/${BUILD_TIME}/" cmd/authelia/constants.go

# CGO_ENABLED=1 is mandatory for building go-sqlite3
RUN cd cmd/authelia && \
GOOS=linux GOARCH=arm CGO_ENABLED=1 CC=arm-linux-musleabihf-gcc go build -tags netgo -ldflags '-w -linkmode external -extldflags -static' -o authelia && \
cd ../authelia-scripts && \
GOOS=linux GOARCH=arm CGO_ENABLED=1 CC=arm-linux-musleabihf-gcc go build -ldflags '-w -linkmode external -extldflags -static' -o authelia-scripts


# ========================================
# ===== Build image for the frontend =====
# ========================================
FROM node:12-alpine AS builder-frontend

WORKDIR /node/src/app
COPY web .

# Install the dependencies and build
RUN yarn install && yarn build

# ===================================
# ===== Authelia official image =====
# ===================================
FROM arm32v7/alpine:3.11.2

COPY ./qemu-arm-static /usr/bin/qemu-arm-static

RUN apk --no-cache add ca-certificates tzdata && \
    rm /usr/bin/qemu-arm-static

WORKDIR /usr/app

COPY --from=builder-backend /go/src/app/cmd/authelia/authelia /go/src/app/cmd/authelia-scripts/authelia-scripts ./
COPY --from=builder-frontend /node/src/app/build public_html

EXPOSE 9091

VOLUME /etc/authelia
VOLUME /var/lib/authelia

CMD ["./authelia", "--config", "/etc/authelia/configuration.yml"]