init
This commit is contained in:
@@ -0,0 +1,154 @@
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FROM alpine:3.23
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# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
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RUN set -eux; \
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# alpine already has a gid 999, so we'll use the next id
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addgroup -S -g 1000 redis; \
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adduser -S -G redis -u 999 redis
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# runtime dependencies
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RUN set -eux; \
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apk add --no-cache \
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# add tzdata for https://github.com/docker-library/redis/issues/138
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tzdata \
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# we need setpriv package as busybox provides very limited functionality
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setpriv \
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;
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ARG REDIS_DOWNLOAD_URL=https://github.com/redis/redis/archive/refs/tags/8.6.0.tar.gz
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ARG REDIS_DOWNLOAD_SHA=74261ece988fd2e1526e5aea9f8b9853217d71e2ef2dafaa624ed9579b5f4317
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RUN set -eux; \
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\
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apk add --no-cache --virtual .build-deps \
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coreutils \
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dpkg-dev dpkg \
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gcc \
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linux-headers \
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make \
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musl-dev \
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openssl-dev \
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g++; \
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\
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arch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \
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case "$arch" in \
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'amd64') export BUILD_WITH_MODULES=yes; export INSTALL_RUST_TOOLCHAIN=yes; export DISABLE_WERRORS=yes ;; \
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'arm64') export BUILD_WITH_MODULES=yes; export INSTALL_RUST_TOOLCHAIN=yes; export DISABLE_WERRORS=yes ;; \
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*) echo >&2 "Modules are NOT supported! unsupported architecture: '$arch'"; export BUILD_WITH_MODULES=no ;; \
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esac; \
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if [ "$BUILD_WITH_MODULES" = "yes" ]; then \
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apk add --no-cache --virtual .module-build-deps \
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autoconf \
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automake \
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bash \
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bsd-compat-headers \
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build-base \
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cargo \
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clang21 \
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clang21-static \
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clang21-libclang \
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cmake \
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curl \
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g++ \
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git \
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libffi-dev \
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libgcc \
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libtool \
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llvm21-dev \
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ncurses-dev \
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openssh \
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openssl \
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py-virtualenv \
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py3-cryptography \
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py3-pip \
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py3-virtualenv \
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python3 \
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python3-dev \
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rsync \
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tar \
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unzip \
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which \
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xsimd \
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xz; \
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fi; \
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\
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# install required python packages for RedisJSON module
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pip install -q --upgrade setuptools && pip install -q --upgrade pip && PIP_BREAK_SYSTEM_PACKAGES=1 pip install -q addict toml jinja2 ramp-packer ;\
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wget -O redis.tar.gz "$REDIS_DOWNLOAD_URL"; \
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echo "$REDIS_DOWNLOAD_SHA *redis.tar.gz" | sha256sum -c -; \
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mkdir -p /usr/src/redis; \
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tar -xzf redis.tar.gz -C /usr/src/redis --strip-components=1; \
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rm redis.tar.gz; \
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\
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# disable Redis protected mode [1] as it is unnecessary in context of Docker
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# (ports are not automatically exposed when running inside Docker, but rather explicitly by specifying -p / -P)
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# [1]: https://github.com/redis/redis/commit/edd4d555df57dc84265fdfb4ef59a4678832f6da
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grep -E '^ *createBoolConfig[(]"protected-mode",.*, *1 *,.*[)],$' /usr/src/redis/src/config.c; \
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sed -ri 's!^( *createBoolConfig[(]"protected-mode",.*, *)1( *,.*[)],)$!\10\2!' /usr/src/redis/src/config.c; \
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grep -E '^ *createBoolConfig[(]"protected-mode",.*, *0 *,.*[)],$' /usr/src/redis/src/config.c; \
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# for future reference, we modify this directly in the source instead of just supplying a default configuration flag because apparently "if you specify any argument to redis-server, [it assumes] you are going to specify everything"
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# see also https://github.com/docker-library/redis/issues/4#issuecomment-50780840
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# (more exactly, this makes sure the default behavior of "save on SIGTERM" stays functional by default)
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\
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# https://github.com/jemalloc/jemalloc/issues/467 -- we need to patch the "./configure" for the bundled jemalloc to match how Debian compiles, for compatibility
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# (also, we do cross-builds, so we need to embed the appropriate "--build=xxx" values to that "./configure" invocation)
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gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
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extraJemallocConfigureFlags="--build=$gnuArch"; \
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# https://salsa.debian.org/debian/jemalloc/-/blob/c0a88c37a551be7d12e4863435365c9a6a51525f/debian/rules#L8-23
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dpkgArch="$(dpkg --print-architecture)"; \
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case "${dpkgArch##*-}" in \
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amd64 | i386 | x32) extraJemallocConfigureFlags="$extraJemallocConfigureFlags --with-lg-page=12" ;; \
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*) extraJemallocConfigureFlags="$extraJemallocConfigureFlags --with-lg-page=16" ;; \
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esac; \
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extraJemallocConfigureFlags="$extraJemallocConfigureFlags --with-lg-hugepage=21"; \
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grep -F 'cd jemalloc && ./configure ' /usr/src/redis/deps/Makefile; \
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sed -ri 's!cd jemalloc && ./configure !&'"$extraJemallocConfigureFlags"' !' /usr/src/redis/deps/Makefile; \
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grep -F "cd jemalloc && ./configure $extraJemallocConfigureFlags " /usr/src/redis/deps/Makefile; \
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\
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# Disable static linking the C runtime for RediSearch's rust submodule
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export RUST_DYN_CRT=1; \
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export PATH="/usr/lib/llvm21/bin:$PATH"; \
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export BUILD_TLS=yes; \
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if [ "$BUILD_WITH_MODULES" = "yes" ]; then \
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make -C /usr/src/redis/modules/redisjson get_source; \
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sed -i 's/^RUST_FLAGS=$/RUST_FLAGS += -C target-feature=-crt-static/' /usr/src/redis/modules/redisjson/src/Makefile ; \
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grep -E 'RUST_FLAGS' /usr/src/redis/modules/redisjson/src/Makefile; \
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fi; \
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make -C /usr/src/redis -j "$(nproc)" all; \
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make -C /usr/src/redis install; \
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\
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# TODO https://github.com/redis/redis/pull/3494 (deduplicate "redis-server" copies)
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serverMd5="$(md5sum /usr/local/bin/redis-server | cut -d' ' -f1)"; export serverMd5; \
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find /usr/local/bin/redis* -maxdepth 0 \
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-type f -not -name redis-server \
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-exec sh -eux -c ' \
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md5="$(md5sum "$1" | cut -d" " -f1)"; \
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test "$md5" = "$serverMd5"; \
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' -- '{}' ';' \
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-exec ln -svfT 'redis-server' '{}' ';' \
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; \
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\
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make -C /usr/src/redis distclean; \
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rm -r /usr/src/redis; \
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\
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runDeps="$( \
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scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
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| tr ',' '\n' \
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| sort -u \
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| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
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)"; \
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apk add --no-network --virtual .redis-rundeps $runDeps; \
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if [ "$BUILD_WITH_MODULES" = "yes" ]; then \
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apk del --no-network .module-build-deps; \
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fi; \
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apk del --no-network .build-deps; \
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rm -rf ~/.cache ~/.gitconfig; \
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\
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redis-cli --version; \
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redis-server --version;
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RUN mkdir /data && chown redis:redis /data
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WORKDIR /data
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COPY docker-entrypoint.sh /usr/local/bin/
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ENTRYPOINT ["docker-entrypoint.sh"]
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EXPOSE 6379
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CMD ["redis-server"]
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Executable
+184
@@ -0,0 +1,184 @@
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#!/bin/sh
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set -e
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SETPRIV="/bin/setpriv --reuid redis --regid redis --clear-groups"
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IS_REDIS_SENTINEL=""
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IS_REDIS_SERVER=""
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CONFIG=""
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SKIP_FIX_PERMS_NOTICE="Use SKIP_FIX_PERMS=1 to skip permission changes."
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# functions
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has_cap() {
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/bin/setpriv -d | grep -q 'Capability bounding set:.*\b'"$1"'\b'
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}
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check_for_sentinel() {
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CMD="$1"
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shift
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if [ "$CMD" = '/usr/local/bin/redis-server' ]; then
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for arg in "$@"; do
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if [ "$arg" = "--sentinel" ]; then
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return 0
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fi
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done
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fi
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if [ "$CMD" = '/usr/local/bin/redis-sentinel' ]; then
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return 0
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fi
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return 1
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}
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# Note: Change permissions only in simple, default cases to avoid affecting
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# unexpected or user-specific files.
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fix_data_dir_perms() {
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# Expecting only *.rdb files and default appendonlydir; skip if others are found.
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unknown_file="$(find . -mindepth 1 -maxdepth 1 \
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-not \( -name \*.rdb -or \( -type d -and -name appendonlydir \) \) \
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-print -quit)"
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if [ -z "$unknown_file" ]; then
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find . -print0 | fix_perms_and_owner rw
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else
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echo "Notice: Unknown file '$unknown_file' found in data dir. Permissions will not be modified. $SKIP_FIX_PERMS_NOTICE"
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fi
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}
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fix_config_perms() {
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config="$1"
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mode="$2"
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if [ ! -f "$config" ]; then
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return 0
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fi
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confdir="$(dirname "$config")"
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if [ ! -d "$confdir" ]; then
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return 0
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fi
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# Expecting only the config file; skip if others are found.
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pattern=$(printf "%s" "$(basename "$config")" | sed 's/[][?*]/\\&/g')
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unknown_file=$(find "$confdir" -mindepth 1 -maxdepth 1 -not -name "$pattern" -print -quit)
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if [ -z "$unknown_file" ]; then
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printf '%s\0%s\0' "$confdir" "$config" | fix_perms_and_owner "$mode"
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else
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echo "Notice: Unknown file '$unknown_file' found in '$confdir'. Permissions will not be modified. $SKIP_FIX_PERMS_NOTICE"
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fi
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}
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fix_perms_and_owner() {
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mode="$1"
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# shellcheck disable=SC3045
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while IFS= read -r -d '' file; do
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if [ "$mode" = "rw" ] && $SETPRIV test -r "$file" -a -w "$file"; then
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continue
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elif [ "$mode" = "r" ] && $SETPRIV test -r "$file"; then
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continue
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fi
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new_mode=$mode
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if [ -d "$file" ]; then
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new_mode=${mode}x
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fi
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err=$(chown redis "$file" 2>&1) || echo "Warning: cannot change owner to 'redis' for '$file': $err. $SKIP_FIX_PERMS_NOTICE"
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err=$(chmod "u+$new_mode" "$file" 2>&1) || echo "Warning: cannot change mode to 'u+$new_mode' for '$file': $err. $SKIP_FIX_PERMS_NOTICE"
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done
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}
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# first arg is `-f` or `--some-option`
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# or first arg is `something.conf`
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if [ "${1#-}" != "$1" ] || [ "${1%.conf}" != "$1" ]; then
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set -- redis-server "$@"
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fi
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CMD=$(command -v "$1" 2>/dev/null || :)
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if [ "$(readlink -f "$CMD")" = '/usr/local/bin/redis-server' ]; then
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IS_REDIS_SERVER=1
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fi
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if check_for_sentinel "$CMD" "$@"; then
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IS_REDIS_SENTINEL=1
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fi
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# if is server and its first arg is not an option then it's a config
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if [ "$IS_REDIS_SERVER" ] && [ "${2#-}" = "$2" ]; then
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CONFIG="$2"
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fi
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# drop privileges only if
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# we are starting either server or sentinel
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# our uid is 0 (container started without explicit --user)
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# and we have capabilities required to drop privs
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if [ "$IS_REDIS_SERVER" ] && [ -z "$SKIP_DROP_PRIVS" ] && [ "$(id -u)" = '0' ] && has_cap setuid && has_cap setgid; then
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if [ -z "$SKIP_FIX_PERMS" ]; then
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# fix permissions
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if [ "$IS_REDIS_SENTINEL" ]; then
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fix_config_perms "$CONFIG" rw
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else
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fix_data_dir_perms
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fix_config_perms "$CONFIG" r
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fi
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fi
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CAPS_TO_KEEP=""
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if has_cap sys_resource; then
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# we have sys_resource capability, keep it available for redis
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# as redis may use it to increase open files limit
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CAPS_TO_KEEP=",+sys_resource"
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fi
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exec $SETPRIV \
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--nnp \
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--inh-caps=-all$CAPS_TO_KEEP \
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--ambient-caps=-all$CAPS_TO_KEEP \
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--bounding-set=-all$CAPS_TO_KEEP \
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"$0" "$@"
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fi
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# set an appropriate umask (if one isn't set already)
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# - https://github.com/docker-library/redis/issues/305
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# - https://github.com/redis/redis/blob/bb875603fb7ff3f9d19aad906bd45d7db98d9a39/utils/systemd-redis_server.service#L37
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um="$(umask)"
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if [ "$um" = '0022' ]; then
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umask 0077
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fi
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if [ "$IS_REDIS_SERVER" ] && ! [ "$IS_REDIS_SENTINEL" ]; then
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echo "Starting Redis Server"
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modules_dir="/usr/local/lib/redis/modules/"
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if [ ! -d "$modules_dir" ]; then
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echo "Warning: Default Redis modules directory $modules_dir does not exist."
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elif [ -n "$(ls -A $modules_dir 2>/dev/null)" ]; then
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for module in "$modules_dir"/*.so;
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do
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if [ ! -s "$module" ]; then
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echo "Skipping module $module: file has no size."
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continue
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fi
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if [ -d "$module" ]; then
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echo "Skipping module $module: is a directory."
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continue
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fi
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if [ ! -r "$module" ]; then
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echo "Skipping module $module: file is not readable."
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continue
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fi
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if [ ! -x "$module" ]; then
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echo "Warning: Module $module is not executable."
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continue
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fi
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set -- "$@" --loadmodule "$module"
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done
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fi
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fi
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exec "$@"
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Reference in New Issue
Block a user