基于Docker搭建Redis主从

mkdir -p /storage/docker/redis/datafile
mkdir -p /storage/docker/redis/log
mkdir /root/build_redis

cd /root/build_redis
vi Dockerfile

FROM ubuntu:latest

# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
RUN groupadd -r redis && useradd -r -g redis redis

RUN apt-get update && apt-get install -y --no-install-recommends \
ca-certificates \
wget \
&& rm -rf /var/lib/apt/lists/*

# grab gosu for easy step-down from root
ENV GOSU_VERSION 1.7
RUN set -x \
&& 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" \
&& export GNUPGHOME="$(mktemp -d)" \
&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
&& rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
&& chmod +x /usr/local/bin/gosu \
&& gosu nobody true

ENV REDIS_VERSION 3.2.8
ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-3.2.8.tar.gz
ENV REDIS_DOWNLOAD_SHA1 6780d1abb66f33a97aad0edbe020403d0a15b67f

# for redis-sentinel see: http://redis.io/topics/sentinel
RUN set -ex \
\
&& buildDeps=' \
gcc \
libc6-dev \
make \
' \
&& apt-get update \
&& apt-get install -y $buildDeps --no-install-recommends \
&& rm -rf /var/lib/apt/lists/* \
\
&& wget -O redis.tar.gz "$REDIS_DOWNLOAD_URL" \
&& echo "$REDIS_DOWNLOAD_SHA1 *redis.tar.gz" | sha1sum -c - \
&& mkdir -p /usr/src/redis \
&& tar -xzf redis.tar.gz -C /usr/src/redis --strip-components=1 \
&& rm redis.tar.gz \
\
# Disable Redis protected mode [1] as it is unnecessary in context
# of Docker. Ports are not automatically exposed when running inside
# Docker, but rather explicitely by specifying -p / -P.
# [1] https://github.com/antirez/redis/commit/edd4d555df57dc84265fdfb4ef59a4678832f6da
&& grep -q '^#define CONFIG_DEFAULT_PROTECTED_MODE 1$' /usr/src/redis/src/server.h \
&& sed -ri 's!^(#define CONFIG_DEFAULT_PROTECTED_MODE) 1$!\1 0!' /usr/src/redis/src/server.h \
&& grep -q '^#define CONFIG_DEFAULT_PROTECTED_MODE 0$' /usr/src/redis/src/server.h \
# 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)
\
&& make -C /usr/src/redis \
&& make -C /usr/src/redis install \
\
&& rm -r /usr/src/redis \
\
&& apt-get purge -y --auto-remove $buildDeps

RUN mkdir /data && chown redis:redis /data
VOLUME /data
WORKDIR /data

COPY docker-entrypoint.sh /usr/local/bin/
RUN chmod 755 /usr/local/bin/docker-entrypoint.sh
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]

EXPOSE 6379
CMD [ "redis-server" ]

#!/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
chown -R redis .
exec gosu redis "$0" "$@"
fi

exec "$@"

将上述Dockerfile和docker-entrypoint.sh放到同样路径下，执行
docker build -t redis .

vi  /storage/docker/redis/redis_master.conf

daemonize no
pidfile /var/run/redis.6379.pid
port 6379
# bind 192.168.1.100 10.0.0.1
# bind 127.0.0.1
# unixsocket /data/datafile/redis.sock
# unixsocketperm 755
timeout 300
tcp-keepalive 60
loglevel notice
logfile /data/log/redis.log
# syslog-enabled no
# syslog-ident redis
# syslog-facility local0
databases 16
# save ""
# save 900 1
# save 300 10
# save 60 10000
stop-writes-on-bgsave-error no
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /data/datafile
# slaveof <masterip> <masterport>
# masterauth <master-password>
masterauth redis1234
slave-serve-stale-data yes
slave-read-only yes
# repl-ping-slave-period 10
repl-timeout 600
repl-disable-tcp-nodelay no
repl-backlog-size 64mb
# repl-backlog-ttl 3600
slave-priority 100
# min-slaves-to-write 3
# min-slaves-max-lag 10
requirepass redis1234
# rename-command CONFIG ""
maxclients 10000
maxmemory 4G
maxmemory-policy noeviction
# maxmemory-samples 3
appendonly no
# appendfsync always
appendfsync everysec
# appendfsync no
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 1024mb
lua-time-limit 5000
slowlog-log-slower-than 20000
slowlog-max-len 128
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-entries 512
list-max-ziplist-value 64
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 8192mb 4096mb 600
client-output-buffer-limit pubsub 32mb 8mb 60
aof-rewrite-incremental-fsync yes
# include /path/to/local.conf
# include /path/to/other.conf

docker run --name m_redis -v /storage/docker/redis:/data -p 6401:6379 -d redis redis-server /data/redis_master.conf

主库宿主机器：

docker save -o redis.image redis

scp redis.image core@192.168.17.62:/tmp/.

ssh登录从库宿主机器：

docker load -i /tmp/redis.image

vi  /storage/docker/redis/redis_slave.conf

daemonize no
pidfile /var/run/redis.6379.pid
port 6379
# bind 192.168.1.100 10.0.0.1
# bind 127.0.0.1
# unixsocket /data/datafile/redis.sock
# unixsocketperm 755
timeout 300
tcp-keepalive 60
loglevel notice
logfile /data/log/redis.log
# syslog-enabled no
# syslog-ident redis
# syslog-facility local0
databases 16
# save ""
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error no
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /data/datafile
slaveof MASTERIP 6379
masterauth redis1234
slave-serve-stale-data yes
slave-read-only yes
repl-ping-slave-period 10
repl-timeout 600
repl-disable-tcp-nodelay no
repl-backlog-size 64mb
repl-backlog-ttl 3600
slave-priority 100
# min-slaves-to-write 3
# min-slaves-max-lag 10
requirepass redis1234
# rename-command CONFIG ""
# maxclients 10000
maxmemory 4G
maxmemory-policy noeviction
# maxmemory-samples 3
appendonly yes
# appendfsync always
appendfsync everysec
# appendfsync no
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 0
auto-aof-rewrite-min-size 64mb
lua-time-limit 5000
slowlog-log-slower-than 20000
slowlog-max-len 128
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-entries 512
list-max-ziplist-value 64
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 8192mb 4096mb 600
client-output-buffer-limit pubsub 32mb 8mb 60
aof-rewrite-incremental-fsync yes
# include /path/to/local.conf
# include /path/to/other.conf

docker run --name s_redis -v /storage/docker/redis:/data -p 6401:6379 -d redis redis-server /data/redis_slave.conf

docker exec -it s_redis /bin/bash
redis-cli
auth redis1234
slaveof 192.168.17.61 6401