66a760794f
update alpine and golang remove nano update go modules remove need for openssl external cli fix stale Signed-off-by: James Strong <james.strong@chainguard.dev>
127 lines
4.7 KiB
Text
127 lines
4.7 KiB
Text
# Copyright 2022 The Kubernetes Authors. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License
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ARG BASE_IMAGE
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FROM ${BASE_IMAGE} as chroot
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# This intermediary image will be used only to copy all the required files to the chroot
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# TODO: Simplify in a future to a single Dockerfile
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COPY chroot.sh /chroot.sh
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RUN apk update \
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&& apk upgrade \
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&& /chroot.sh
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FROM alpine:3.17.2
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ARG TARGETARCH
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ARG VERSION
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ARG COMMIT_SHA
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ARG BUILD_ID=UNSET
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LABEL org.opencontainers.image.title="NGINX Ingress Controller for Kubernetes"
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LABEL org.opencontainers.image.documentation="https://kubernetes.github.io/ingress-nginx/"
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LABEL org.opencontainers.image.source="https://github.com/kubernetes/ingress-nginx"
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LABEL org.opencontainers.image.vendor="The Kubernetes Authors"
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LABEL org.opencontainers.image.licenses="Apache-2.0"
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LABEL org.opencontainers.image.version="${VERSION}"
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LABEL org.opencontainers.image.revision="${COMMIT_SHA}"
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LABEL build_id="${BUILD_ID}"
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# This will be injected in the chroot. Don't change :)
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ENV LUA_PATH="/usr/local/share/luajit-2.1.0-beta3/?.lua;/usr/local/share/lua/5.1/?.lua;/usr/local/lib/lua/?.lua;;"
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ENV LUA_CPATH="/usr/local/lib/lua/?/?.so;/usr/local/lib/lua/?.so;;"
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ENV PATH=$PATH:/usr/local/luajit/bin:/usr/local/nginx/sbin:/usr/local/nginx/bin
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RUN apk update \
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&& apk upgrade \
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&& apk add -U --no-cache \
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bash \
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openssl \
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curl \
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ca-certificates \
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dumb-init \
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tzdata \
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diffutils \
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util-linux \
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&& ln -s /usr/local/nginx/sbin/nginx /sbin/nginx \
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&& adduser -S -D -H -u 101 -h /usr/local/nginx \
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-s /sbin/nologin -G www-data -g www-data www-data
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COPY --from=chroot /chroot /chroot
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COPY --chown=www-data:www-data etc /chroot/etc
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COPY --chown=www-data:www-data bin/${TARGETARCH}/dbg /
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COPY --chown=www-data:www-data bin/${TARGETARCH}/nginx-ingress-controller /
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COPY --chown=www-data:www-data bin/${TARGETARCH}/wait-shutdown /
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COPY --chown=www-data:www-data nginx-chroot-wrapper.sh /usr/bin/nginx
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WORKDIR /chroot/etc/nginx
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# Fix permission during the build to avoid issues at runtime
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# with volumes (custom templates)
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RUN bash -xeu -c ' \
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writeDirs=( \
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/var/log \
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); \
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for dir in "${writeDirs[@]}"; do \
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mkdir -p ${dir}; \
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chown -R www-data.www-data ${dir}; \
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done' \
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# LD_LIBRARY_PATH does not work so below is needed for opentelemetry/other modules
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# Put libs of newer modules under `/modules_mount/<other>/lib` and add that path below
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# Could get complicated arch specific paths become a need
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&& echo "/lib:/usr/lib:/usr/local/lib:/modules_mount/etc/nginx/modules/otel" > /chroot/etc/ld-musl-x86_64.path
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RUN apk add --no-cache libcap \
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&& setcap cap_sys_chroot,cap_net_bind_service=+ep /nginx-ingress-controller \
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&& setcap -v cap_sys_chroot,cap_net_bind_service=+ep /nginx-ingress-controller \
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&& setcap cap_sys_chroot,cap_net_bind_service=+ep /usr/bin/unshare \
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&& setcap -v cap_sys_chroot,cap_net_bind_service=+ep /usr/bin/unshare \
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&& setcap cap_net_bind_service=+ep /chroot/usr/local/nginx/sbin/nginx \
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&& setcap -v cap_net_bind_service=+ep /chroot/usr/local/nginx/sbin/nginx \
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&& setcap cap_sys_chroot,cap_net_bind_service=+ep /usr/bin/dumb-init \
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&& setcap -v cap_sys_chroot,cap_net_bind_service=+ep /usr/bin/dumb-init \
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&& apk del libcap
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RUN ln -sf /chroot/etc/nginx /etc/nginx \
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&& ln -sf /chroot/tmp/nginx /tmp/nginx \
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&& ln -sf /chroot/etc/ingress-controller /etc/ingress-controller \
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&& ln -sf /chroot/var/log/nginx /var/log/nginx \
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&& touch /chroot/var/log/nginx/access.log \
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&& chown www-data:www-data /chroot/var/log/nginx/access.log \
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&& echo "" > /chroot/etc/resolv.conf \
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&& chown -R www-data.www-data /chroot/var/log/nginx /chroot/etc/resolv.conf \
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&& mknod -m 0666 /chroot/dev/null c 1 3 \
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&& mknod -m 0666 /chroot/dev/random c 1 8 \
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&& mknod -m 0666 /chroot/dev/urandom c 1 9 \
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&& mknod -m 0666 /chroot/dev/full c 1 7 \
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&& mknod -m 0666 /chroot/dev/ptmx c 5 2 \
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&& mknod -m 0666 /chroot/dev/zero c 1 5 \
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&& mknod -m 0666 /chroot/dev/tty c 5 0
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RUN mkdir -p /chroot/modules_mount \
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&& mkdir -p modules_mount \
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&& ln -s /modules_mount /chroot/modules_mount
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USER www-data
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EXPOSE 80 443
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ENTRYPOINT ["/usr/bin/dumb-init", "--"]
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CMD ["/nginx-ingress-controller"]
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