Dockerfile.alpine

# setup build arguments for version of dependencies to use
ARG DOCKER_GEN_VERSION=0.16.6
ARG FOREGO_VERSION=0.18.6

# Use the official, prebuilt docker-gen and forego images instead of compiling
# them from Go source. This is how the upstream nginxproxy/nginx-proxy image is
# built today: it is reproducible, much faster, and removes the Go toolchain.
FROM docker.io/nginxproxy/docker-gen:${DOCKER_GEN_VERSION} AS docker-gen
FROM docker.io/nginxproxy/forego:${FOREGO_VERSION} AS forego

# Build the final image
FROM nginx:1.31.2-alpine

ARG NGINX_PROXY_VERSION
# Add DOCKER_GEN_VERSION environment variable
# Because some external projects rely on it
ARG DOCKER_GEN_VERSION
ENV NGINX_PROXY_VERSION=${NGINX_PROXY_VERSION} \
   DOCKER_GEN_VERSION=${DOCKER_GEN_VERSION} \
   DOCKER_HOST=unix:///tmp/docker.sock

# Install wget and install/updates certificates
RUN apk add --no-cache --virtual .run-deps \
   ca-certificates bash wget openssl \
   && update-ca-certificates

# Configure Nginx
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 \
   && mkdir -p '/etc/nginx/dhparam'

# Install Forego + docker-gen
COPY --from=forego /usr/local/bin/forego /usr/local/bin/forego
COPY --from=docker-gen /usr/local/bin/docker-gen /usr/local/bin/docker-gen

COPY network_internal.conf /etc/nginx/

COPY app nginx.tmpl LICENSE /app/
WORKDIR /app/

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