ingress-nginx-helm/rootfs/Dockerfile
Marco Ebert c160bfff69
Images: Bump Alpine to v3.21. (#12481)
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-12-20 18:04:10 +01:00

87 lines
3.1 KiB
Docker

# Copyright 2015 The Kubernetes Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
ARG BASE_IMAGE
FROM ${BASE_IMAGE}
ARG TARGETARCH
ARG VERSION
ARG COMMIT_SHA
ARG BUILD_ID=UNSET
LABEL org.opencontainers.image.title="NGINX Ingress Controller for Kubernetes"
LABEL org.opencontainers.image.documentation="https://kubernetes.github.io/ingress-nginx/"
LABEL org.opencontainers.image.source="https://github.com/kubernetes/ingress-nginx"
LABEL org.opencontainers.image.vendor="The Kubernetes Authors"
LABEL org.opencontainers.image.licenses="Apache-2.0"
LABEL org.opencontainers.image.version="${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/${TARGETARCH}/wait-shutdown /
# Fix permission during the build to avoid issues at runtime
# with volumes (custom templates)
RUN bash -xeu -c ' \
writeDirs=( \
/etc/ingress-controller/ssl \
/etc/ingress-controller/auth \
/etc/ingress-controller/geoip \
/etc/ingress-controller/telemetry \
/var/log \
/var/log/nginx \
/tmp/nginx \
); \
for dir in "${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"]