nginx-proxy-index/Dockerfile at main · ZenDevelopmentEcosystem/nginx-proxy-index · GitHub

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# setup build arguments for version of dependencies to use
ARG DOCKER_GEN_VERSION=0.14.6
ARG FOREGO_VERSION=v0.18.2
ARG INDEX_WEB_TYPE=git
ARG INDEX_WEB_SRC=https://github.com/ZenDevelopmentEcosystem/index-web

# Use a specific version of golang to build both binaries
FROM golang:1.24.1 AS gobuilder


# Build docker-gen from scratch
FROM gobuilder AS dockergen
ARG DOCKER_GEN_VERSION
RUN git clone https://github.com/jwilder/docker-gen \
   && (cd /go/docker-gen \
       && git -c advice.detachedHead=false checkout $DOCKER_GEN_VERSION \
       && go mod download \
       && CGO_ENABLED=0 GOOS=linux go build -ldflags "-X main.buildVersion=${DOCKER_GEN_VERSION}" ./cmd/docker-gen \
       && go clean -cache \
       && mv docker-gen /usr/local/bin/ \
     ) \
   && rm -rf /go/docker-gen


# Build forego from scratch
FROM gobuilder AS forego
ARG FOREGO_VERSION
RUN git clone https://github.com/nginx-proxy/forego/ \
   && (cd /go/forego \
       && git -c advice.detachedHead=false checkout $FOREGO_VERSION \
       && go mod download \
       && CGO_ENABLED=0 GOOS=linux go build -o forego . \
       && go clean -cache \
       && mv forego /usr/local/bin/ \
       ) \
       && rm -rf /go/forego


# index-web using git
FROM gobuilder AS frontend-git
ARG INDEX_WEB_SRC
RUN git clone "${INDEX_WEB_SRC}" \
   && cp -r index-web/html / \
   && cp -r index-web/docker-entrypoint.d / \
   && rm -rf index-web


# index-web using filesystem
FROM gobuilder AS frontend-filesystem
ARG INDEX_WEB_SRC
COPY ${INDEX_WEB_SRC}/html /html
COPY ${INDEX_WEB_SRC}/docker-entrypoint.d /docker-entrypoint.d

# index-web disabled
FROM gobuilder AS frontend-none
RUN mkdir /html

# hadolint ignore=DL3006
FROM frontend-${INDEX_WEB_TYPE} AS frontend

# Build the final image
FROM nginx:latest
LABEL maintainer="Per Böhlin <per.bohlin@devconsoft.se>"

# Configure Nginx and apply fix for very long server names
RUN echo "daemon off;" >> /etc/nginx/nginx.conf \
   && sed -i 's/worker_processes  1/worker_processes  auto/' /etc/nginx/nginx.conf \
   && sed -i 's/worker_connections  1024/worker_connections  10240/' /etc/nginx/nginx.conf

# Install Forego + docker-gen
COPY --from=forego --chown=root:root --chmod=500 /usr/local/bin/forego /usr/local/bin/forego
COPY --from=dockergen --chown=root:root --chmod=500 /usr/local/bin/docker-gen /usr/local/bin/docker-gen

# Add DOCKER_GEN_VERSION environment variable
# Because some external projects rely on it
ARG DOCKER_GEN_VERSION
ENV DOCKER_GEN_VERSION=${DOCKER_GEN_VERSION}

COPY app /app/
WORKDIR /app/

ENV DOCKER_HOST=unix:///tmp/docker.sock
ENV INDEX_DATA_FILE=/usr/share/nginx/html/data/index.json

RUN rm -rf /usr/share/nginx/html
COPY --from=frontend --chown=nginx:nginx /html /usr/share/nginx/html
COPY --from=frontend --chown=nginx:nginx /docker-entrypoint.d/ /docker-entrypoint.d/

ENTRYPOINT ["/app/docker-entrypoint.sh"]
CMD ["forego", "start", "-r"]