Add simple Alpine-based variant

.travis.yml

@@ -4,6 +4,7 @@ services: docker
 env:
   - VERSION=3.0 VARIANT=
   - VERSION=3.0 VARIANT=32bit
+  - VERSION=3.0 VARIANT=alpine
   - VERSION=2.8 VARIANT=
   - VERSION=2.8 VARIANT=32bit
 

3.0/alpine/Dockerfile

@@ -0,0 +1,53 @@
+FROM alpine:3.3
+
+# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
+RUN addgroup -S redis && adduser -S -G redis redis
+
+ENV GOSU_GPG_KEY B42F6819007F00F88E364FD4036A9C25BF357DD4
+ENV GOSU_VERSION 1.7
+
+# grab gosu for easy step-down from root
+RUN apk add --no-cache --virtual .gosu-deps \
+		dpkg \
+		gnupg \
+		openssl \
+	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
+	&& wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
+	&& wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
+	&& gpg --verify /usr/local/bin/gosu.asc \
+	&& rm /usr/local/bin/gosu.asc \
+	&& chmod +x /usr/local/bin/gosu \
+	&& rm -r ~/.gnupg \
+	&& apk del .gosu-deps
+
+ENV REDIS_VERSION 3.0.6
+ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-3.0.6.tar.gz
+ENV REDIS_DOWNLOAD_SHA1 4b1c7b1201984bca8f7f9c6c58862f6928cf0a25
+
+# for redis-sentinel see: http://redis.io/topics/sentinel
+RUN set -x \
+	&& apk add --no-cache --virtual .build-deps \
+		gcc \
+		linux-headers \
+		make \
+		musl-dev \
+	&& wget "$REDIS_DOWNLOAD_URL" -O redis.tar.gz \
+	&& echo "$REDIS_DOWNLOAD_SHA1 *redis.tar.gz" | sha1sum -c - \
+	&& mkdir -p /usr/src \
+	&& tar -xzf redis.tar.gz -C /usr/src \
+	&& mv "/usr/src/redis-$REDIS_VERSION" /usr/src/redis \
+	&& rm redis.tar.gz \
+	&& make -C /usr/src/redis \
+	&& make -C /usr/src/redis install \
+	&& rm -r /usr/src/redis \
+	&& apk del .build-deps
+
+RUN mkdir /data && chown redis:redis /data
+VOLUME /data
+WORKDIR /data
+
+COPY docker-entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+
+EXPOSE 6379
+CMD [ "redis-server" ]

3.0/alpine/docker-entrypoint.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -e
+
+if [ "$1" = 'redis-server' ]; then
+	chown -R redis .
+	exec gosu redis "$@"
+fi
+
+exec "$@"

generate-stackbrew-library.sh

@@ -31,7 +31,7 @@ for version in "${versions[@]}"; do
 		echo "$va: ${url}@${commit} $version"
 	done
 
-	for variant in 32bit; do
+	for variant in 32bit alpine; do
 		[ -f "$version/$variant/Dockerfile" ] || continue
 		commit="$(cd "$version/$variant" && git log -1 --format='format:%H' -- Dockerfile $(awk 'toupper($1) == "COPY" { for (i = 2; i < NF; i++) { print $i } }' Dockerfile))"
 		echo

update.sh

@@ -27,9 +27,12 @@ for version in "${versions[@]}"; do
 			s/^(ENV REDIS_VERSION) .*/\1 '"$fullVersion"'/;
 			s/^(ENV REDIS_DOWNLOAD_URL) .*/\1 '"$downloadUrl"'/;
 			s/^(ENV REDIS_DOWNLOAD_SHA1) .*/\1 '"$shaHash"'/
-		' "$version"{/,/32bit/}"Dockerfile"
+		' "$version"/{,*/}Dockerfile
 	)
-	travisEnv='\n  - VERSION='"$version VARIANT=32bit$travisEnv"
+	for variant in alpine 32bit; do
+		[ -d "$version/$variant" ] || continue
+		travisEnv='\n  - VERSION='"$version VARIANT=$variant$travisEnv"
+	done
 	travisEnv='\n  - VERSION='"$version VARIANT=$travisEnv"
 done