ingress-nginx/controller Dockerfile

1 개요

ingress-nginx controller Dockerfile
FROM registry.k8s.io/ingress-nginx/nginx:v2.2.0 # https://github.com/kubernetes/ingress-nginx/blob/controller-v1.13.0/NGINX_BASE

ARG TARGETARCH
ARG VERSION
ARG COMMIT_SHA
ARG BUILD_ID=UNSET

LABEL org.opencontainers.image.title="NGINX Ingress Controller for Kubernetes"
LABEL org.opencontainers.image.documentation="https://kubernetes.github.io/ingress-nginx/"
LABEL org.opencontainers.image.source="https://github.com/kubernetes/ingress-nginx"
LABEL org.opencontainers.image.vendor="The Kubernetes Authors"
LABEL org.opencontainers.image.licenses="Apache-2.0"
LABEL org.opencontainers.image.version="${VERSION}"
LABEL org.opencontainers.image.revision="${COMMIT_SHA}"

LABEL build_id="${BUILD_ID}"

WORKDIR  /etc/nginx

RUN apk update \
  && apk upgrade \
  && apk add --no-cache \
    diffutils \
  && rm -rf /var/cache/apk/*

COPY --chown=www-data:www-data etc /etc

COPY --chown=www-data:www-data bin/${TARGETARCH}/dbg /
COPY --chown=www-data:www-data bin/${TARGETARCH}/nginx-ingress-controller /
COPY --chown=www-data:www-data bin/${TARGETARCH}/wait-shutdown /

# Fix permission during the build to avoid issues at runtime
# with volumes (custom templates)
RUN bash -xeu -c ' \
  writeDirs=( \
    /etc/ingress-controller \
    /etc/ingress-controller/ssl \
    /etc/ingress-controller/auth \
    /etc/ingress-controller/geoip \
    /etc/ingress-controller/telemetry \
    /var/log \
    /var/log/nginx \
    /tmp/nginx \
  ); \
  for dir in "${writeDirs[@]}"; do \
    mkdir -p ${dir}; \
    chown -R www-data:www-data ${dir}; \
  done' \
  # LD_LIBRARY_PATH does not work so below is needed for  opentelemetry/other modules
  # Put libs of newer modules under `/modules_mount/<other>/lib` and add that path below
  # Could get complicated arch specific paths become a need
  && echo "/lib:/usr/lib:/usr/local/lib:/modules_mount/etc/nginx/modules/otel" > /etc/ld-musl-x86_64.path
  

RUN apk add --no-cache libcap \
  && setcap    cap_net_bind_service=+ep /nginx-ingress-controller \
  && setcap -v cap_net_bind_service=+ep /nginx-ingress-controller \
  && setcap    cap_net_bind_service=+ep /usr/local/nginx/sbin/nginx \
  && setcap -v cap_net_bind_service=+ep /usr/local/nginx/sbin/nginx \
  && setcap    cap_net_bind_service=+ep /usr/bin/dumb-init \
  && setcap -v cap_net_bind_service=+ep /usr/bin/dumb-init \
  && apk del libcap \
  && ln -sf /usr/local/nginx/sbin/nginx /usr/bin/nginx

USER www-data

# Create symlinks to redirect nginx logs to stdout and stderr docker log collector
RUN  ln -sf /dev/stdout /var/log/nginx/access.log \
  && ln -sf /dev/stderr /var/log/nginx/error.log

ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/nginx-ingress-controller"]
2 같이 보기

3 참고

https://github.com/kubernetes/ingress-nginx/blob/main/rootfs/Dockerfile