Initial commit

.drone.yml

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+kind: pipeline
+name: default
+trigger:
+  branch:
+    - main
+  event:
+    - push
+workspace:
+  path: /drone/src
+environment:
+  REPO_NAME: redis
+  IMAGE_NAME: redis
+  APP_NAME: safebox-redis
+  SERVICE_NAME: service-demo
+  DOCKER_REGISTRY_URL: registry.format.hu
+
+steps:
+  - name: build master image
+    image: plugins/docker
+    commands:
+      - cd /drone/src/
+      - docker build -t $${PRODUCTION_REGISTRY_SERVER_NAME}/$${IMAGE_NAME} -f Dockerfile .
+      - docker push $${PRODUCTION_REGISTRY_SERVER_NAME}/$${IMAGE_NAME}
+    when:
+      branch:
+        - master
+    volumes:
+      - name: docker
+        path: /var/run/docker.sock
+
+  - name: restarting server
+    image: registry.format.hu/setup:latest
+    commands:
+      - cd /services/
+      - /scripts/service-exec $${SERVICE_NAME}.containers.$${APP_NAME} stop force
+      - /scripts/service-exec $${SERVICE_NAME}.containers.$${APP_NAME} start
+    workspace:
+      path: /services
+    when:
+      branch:
+        - dev
+
+    volumes:
+      - name: services
+        path: /services
+      - name: tmp
+        path: /services/tmp
+      - name: docker
+        path: /var/run/docker.sock
+      - name: docker_bin
+        path: /usr/bin/docker
+
+volumes:
+  - name: docker
+    host:
+      path: /var/run/docker.sock
+
+  - name: docker_bin
+    host:
+      path: /usr/bin/docker
+
+  - name: services
+    host:
+      path: /etc/user/config/services
+
+  - name: tmp
+    host:
+      path: /etc/user/config/services/tmp

Dockerfile

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+FROM alpine:3.19
+
+# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
+RUN addgroup -S -g 1000 redis && adduser -S -G redis -u 999 redis
+# alpine already has a gid 999, so we'll use the next id
+
+RUN apk add --no-cache \
+	# grab su-exec for easy step-down from root
+	'su-exec>=0.2' \
+	# add tzdata for https://github.com/docker-library/redis/issues/138
+	tzdata
+
+ENV REDIS_VERSION 7.0.5
+ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-7.0.5.tar.gz
+ENV REDIS_DOWNLOAD_SHA 67054cc37b58c125df93bd78000261ec0ef4436a26b40f38262c780e56315cc3
+
+RUN set -eux; \
+	\
+	apk add --no-cache --virtual .build-deps \
+	coreutils \
+	dpkg-dev dpkg \
+	gcc \
+	linux-headers \
+	make \
+	musl-dev \
+	openssl-dev \
+	# install real "wget" to avoid:
+	#   + wget -O redis.tar.gz https://download.redis.io/releases/redis-6.0.6.tar.gz
+	#   Connecting to download.redis.io (45.60.121.1:80)
+	#   wget: bad header line:     XxhODalH: btu; path=/; Max-Age=900
+	wget \
+	; \
+	\
+	wget -O redis.tar.gz "$REDIS_DOWNLOAD_URL"; \
+	echo "$REDIS_DOWNLOAD_SHA *redis.tar.gz" | sha256sum -c -; \
+	mkdir -p /usr/src/redis; \
+	tar -xzf redis.tar.gz -C /usr/src/redis --strip-components=1; \
+	rm redis.tar.gz; \
+	\
+	# disable Redis protected mode [1] as it is unnecessary in context of Docker
+	# (ports are not automatically exposed when running inside Docker, but rather explicitly by specifying -p / -P)
+	# [1]: https://github.com/redis/redis/commit/edd4d555df57dc84265fdfb4ef59a4678832f6da
+	grep -E '^ *createBoolConfig[(]"protected-mode",.*, *1 *,.*[)],$' /usr/src/redis/src/config.c; \
+	sed -ri 's!^( *createBoolConfig[(]"protected-mode",.*, *)1( *,.*[)],)$!\10\2!' /usr/src/redis/src/config.c; \
+	grep -E '^ *createBoolConfig[(]"protected-mode",.*, *0 *,.*[)],$' /usr/src/redis/src/config.c; \
+	# for future reference, we modify this directly in the source instead of just supplying a default configuration flag because apparently "if you specify any argument to redis-server, [it assumes] you are going to specify everything"
+	# see also https://github.com/docker-library/redis/issues/4#issuecomment-50780840
+	# (more exactly, this makes sure the default behavior of "save on SIGTERM" stays functional by default)
+	\
+	# https://github.com/jemalloc/jemalloc/issues/467 -- we need to patch the "./configure" for the bundled jemalloc to match how Debian compiles, for compatibility
+	# (also, we do cross-builds, so we need to embed the appropriate "--build=xxx" values to that "./configure" invocation)
+	gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
+	extraJemallocConfigureFlags="--build=$gnuArch"; \
+	# https://salsa.debian.org/debian/jemalloc/-/blob/c0a88c37a551be7d12e4863435365c9a6a51525f/debian/rules#L8-23
+	dpkgArch="$(dpkg --print-architecture)"; \
+	case "${dpkgArch##*-}" in \
+	amd64 | i386 | x32) extraJemallocConfigureFlags="$extraJemallocConfigureFlags --with-lg-page=12" ;; \
+	*) extraJemallocConfigureFlags="$extraJemallocConfigureFlags --with-lg-page=16" ;; \
+	esac; \
+	extraJemallocConfigureFlags="$extraJemallocConfigureFlags --with-lg-hugepage=21"; \
+	grep -F 'cd jemalloc && ./configure ' /usr/src/redis/deps/Makefile; \
+	sed -ri 's!cd jemalloc && ./configure !&'"$extraJemallocConfigureFlags"' !' /usr/src/redis/deps/Makefile; \
+	grep -F "cd jemalloc && ./configure $extraJemallocConfigureFlags " /usr/src/redis/deps/Makefile; \
+	\
+	export BUILD_TLS=yes; \
+	make -C /usr/src/redis -j "$(nproc)" all; \
+	make -C /usr/src/redis install; \
+	\
+	# TODO https://github.com/redis/redis/pull/3494 (deduplicate "redis-server" copies)
+	serverMd5="$(md5sum /usr/local/bin/redis-server | cut -d' ' -f1)"; export serverMd5; \
+	find /usr/local/bin/redis* -maxdepth 0 \
+	-type f -not -name redis-server \
+	-exec sh -eux -c ' \
+	md5="$(md5sum "$1" | cut -d" " -f1)"; \
+	test "$md5" = "$serverMd5"; \
+	' -- '{}' ';' \
+	-exec ln -svfT 'redis-server' '{}' ';' \
+	; \
+	\
+	rm -r /usr/src/redis; \
+	\
+	runDeps="$( \
+	scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
+	| tr ',' '\n' \
+	| sort -u \
+	| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+	)"; \
+	apk add --no-network --virtual .redis-rundeps $runDeps; \
+	apk del --no-network .build-deps; \
+	\
+	redis-cli --version; \
+	redis-server --version
+
+RUN mkdir /data && chown redis:redis /data
+VOLUME /data
+WORKDIR /data
+
+COPY docker-entrypoint.sh /usr/local/bin/
+ENTRYPOINT ["docker-entrypoint.sh"]
+
+EXPOSE 6379
+CMD ["redis-server"]

docker-entrypoint.sh

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+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+# or first arg is `something.conf`
+if [ "${1#-}" != "$1" ] || [ "${1%.conf}" != "$1" ]; then
+	set -- redis-server "$@"
+fi
+
+# allow the container to be started with `--user`
+if [ "$1" = 'redis-server' -a "$(id -u)" = '0' ]; then
+	find . \! -user redis -exec chown redis '{}' +
+	exec su-exec redis "$0" "$@"
+fi
+
+# set an appropriate umask (if one isn't set already)
+# - https://github.com/docker-library/redis/issues/305
+# - https://github.com/redis/redis/blob/bb875603fb7ff3f9d19aad906bd45d7db98d9a39/utils/systemd-redis_server.service#L37
+um="$(umask)"
+if [ "$um" = '0022' ]; then
+	umask 0077
+fi
+
+exec "$@"