authelia/Dockerfile

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# =======================================
# ===== Build image for the backend =====
# =======================================
FROM golang:1.16.2-alpine AS builder-backend
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ARG BUILD_TAG
ARG BUILD_COMMIT
# gcc and musl-dev are required for building go-sqlite3
RUN apk --no-cache add gcc musl-dev
WORKDIR /go/src/app
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COPY go.mod go.sum config.template.yml ./
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RUN go mod download
COPY cmd cmd
COPY internal internal
# Prepare static files to be embedded in Go binary
RUN rm -rf internal/server/public_html
COPY public_html internal/server/public_html
# Set the build version and time
RUN echo "Write tag ${BUILD_TAG} and commit ${BUILD_COMMIT} in binary." && \
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sed -i "s/__BUILD_TAG__/${BUILD_TAG}/" cmd/authelia/constants.go && \
sed -i "s/__BUILD_COMMIT__/${BUILD_COMMIT}/" cmd/authelia/constants.go
# CGO_ENABLED=1 is mandatory for building go-sqlite3
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RUN cd cmd/authelia && \
GOOS=linux GOARCH=amd64 CGO_ENABLED=1 go build -tags netgo -ldflags '-s -w -linkmode external -extldflags -static' -trimpath -o authelia
# ===================================
# ===== Authelia official image =====
# ===================================
FROM alpine:3.13.4
WORKDIR /app
RUN apk --no-cache add ca-certificates su-exec tzdata
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COPY --from=builder-backend /go/src/app/cmd/authelia/authelia ./
COPY entrypoint.sh healthcheck.sh /usr/local/bin/
EXPOSE 9091
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VOLUME /config
# Set environment variables
ENV PATH="/app:${PATH}" \
PUID=0 \
PGID=0
ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
CMD ["--config", "/config/configuration.yml"]
HEALTHCHECK --interval=30s --timeout=3s --start-period=1m CMD /usr/local/bin/healthcheck.sh