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Docker-compose로 Redis Replication 자동 구성하기
광82
2023. 9. 19. 10:30
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Docker-compose로 Redis Replication 자동 구성하기
지난 글에서 docker-compose 를 통해 mysql replication 구성하는 방법을 공유했습니다.
이번 글에서는 redis replication 구성하는 docker-compose.yml을 공유하겠습니다.
여기서 사용한 redis 이미지 및 redis / sentinel conf 파일 등 기본 환경은 제가 개인적으로 만든 것이기 때문에 이 글을 참고하시는 경우엔 본인의 환경에 맞게 설정이 필요합니다.
본문에서 사용된 docker-compose.yml 이나 dockerfile의 옵션 등은 이전 글 참고 부탁드립니다. (https://kimdubi.github.io/cloud/docker_mysql_repl/ )
구성
* docker-compose.yml
* redis1
* Dockerfile
* docker-entrypoint.sh
* redis2
* Dockerfile
* docker-entrypoint.sh
- 총 두개의 컨테이너를 생성
- 각각의 컨테이너에서 M-S redis 한대씩 생성하는 구성
- redis1 <-> redis2 replication 구성이 아니라 각각 별개의 노드임
docker-compose.yml
version: '3'
services:
redis1:
image: redis_image:latest
build:
context: ./redis1
dockerfile: Dockerfile
stdin_open: true
tty: true
environment:
- REQUIREPASS=qhdks123
- PORT=8001
- HOST=172.19.0.10
volumes:
- "../redis-data/redis1:/data"
networks:
redis_net:
ipv4_address: 172.19.0.10
restart: always
container_name: redis1
redis2:
image: redis_image:latest
build:
context: ./redis2
dockerfile: Dockerfile
stdin_open: true
tty: true
environment:
- REQUIREPASS=qhdks123
- PORT=8001
- HOST=172.19.0.11
volumes:
- "../redis-data/redis2:/data"
networks:
redis_net:
ipv4_address: 172.19.0.11
restart: always
container_name: redis2
networks:
redis_net:
driver: bridge
ipam:
config:
- subnet: 172.19.0.0/24
Dockerfile
FROM redis_image:latest
MAINTAINER kimdubi
USER root
ADD redis.conf /engn001/redis-stable/redis_8001.conf
ADD redis.conf /engn001/redis-stable/redis_8002.conf
ADD docker-entrypoint_1.sh /usr/local/bin/docker-entrypoint.sh
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
docker-entrypoint.sh
#!/bin/sh
set -e
# MASTER
sed -i "s/bind 127.0.0.1/bind 0.0.0.0/g" /engn001/redis-stable/redis_8001.conf
sed -i "s/port 6379/port 8001/g" /engn001/redis-stable/redis_8001.conf
sed -i "s/# requirepass foobared/requirepass $REQUIREPASS/g" /engn001/redis-stable/redis_8001.conf
sed -i "s/# masterauth <master-password>/masterauth $REQUIREPASS/g" /engn001/redis-stable/redis_8001.conf
sed -i "s/redis.log/redis_$PORT/g" /engn001/redis-stable/redis_8001.conf
sed -i "s/redis.pid/redis_8001.pid/g" /engn001/redis-stable/redis_8001.conf
# SLAVE
sed -i "s/bind 127.0.0.1/bind 0.0.0.0/g" /engn001/redis-stable/redis_8002.conf
sed -i "s/port 6379/port 8002/g" /engn001/redis-stable/redis_8002.conf
sed -i "s/# requirepass foobared/requirepass $REQUIREPASS/g" /engn001/redis-stable/redis_8002.conf
sed -i "s/# masterauth <master-password>/masterauth $REQUIREPASS/g" /engn001/redis-stable/redis_8002.conf
sed -i "s/redis.log/redis_8002/g" /engn001/redis-stable/redis_8002.conf
sed -i "s/redis.pid/redis_8002.pid/g" /engn001/redis-stable/redis_8002.conf
sed -i "s/# replicaof <masterip> <masterport>/replicaof $HOST 8001/g" /engn001/redis-stable/redis_8002.conf
cp /engn001/redis-stable/redis_8002.conf /data
cp /engn001/redis-stable/redis_8001.conf /data
redis-server /engn001/redis-stable/redis_8001.conf &
sleep 10
redis-server /engn001/redis-stable/redis_8002.conf &
sleep 5
/bin/bash
실행
kimdubi:conf nhn$ docker-compose -f ./docker-compose_cluster.yml up -d --build
Building redis1
Step 1/7 : FROM redis_image:latest
---> 12f2d1aceccf
Step 2/7 : MAINTAINER kimdubi
---> Running in 267c9a7305db
Removing intermediate container 267c9a7305db
---> 60c43e140621
Step 3/7 : USER root
---> Running in f1551ca18771
Removing intermediate container f1551ca18771
---> 5ea5e2f294bd
Step 4/7 : ADD redis.conf /engn001/redis-stable/redis_8001.conf
---> 18c79109484c
Step 5/7 : ADD redis.conf /engn001/redis-stable/redis_8002.conf
---> 315f0c1054b7
Step 6/7 : ADD docker-entrypoint_1.sh /usr/local/bin/docker-entrypoint.sh
---> 61115547bfdc
Step 7/7 : ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
---> Running in 86ab83398a30
Removing intermediate container 86ab83398a30
---> f787b6c79a50
Successfully built f787b6c79a50
Successfully tagged redis_image:latest
Building redis2
Step 1/7 : FROM redis_image:latest
---> f787b6c79a50
Step 2/7 : MAINTAINER kimdubi
---> Running in 2a5b37bea615
Removing intermediate container 2a5b37bea615
---> 29fe4d956d9f
Step 3/7 : USER root
---> Running in 04028334d2dd
Removing intermediate container 04028334d2dd
---> 4d2c2b07d2bb
Step 4/7 : ADD redis.conf /engn001/redis-stable/redis_8001.conf
---> cedb87ac51dc
Step 5/7 : ADD redis.conf /engn001/redis-stable/redis_8002.conf
---> b60e8de07c8e
Step 6/7 : ADD docker-entrypoint_1.sh /usr/local/bin/docker-entrypoint.sh
---> 681340e9e4b3
Step 7/7 : ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
---> Running in 3b3ec419dec0
Removing intermediate container 3b3ec419dec0
---> 8a52816eefd6
Successfully built 8a52816eefd6
Successfully tagged redis_image:latest
Creating redis1 ... done
Creating redis2 ... done
결과
kimdubi:conf nhn$ de redis1 /bin/bash
[root@0bf9cd2b4639 /]# ps -ef | grep redis
root 23 1 0 05:12 ? 00:00:00 redis-server 0.0.0.0:8001
root 29 1 0 05:13 ? 00:00:00 redis-server 0.0.0.0:8002
root 62 45 0 05:13 pts/1 00:00:00 grep --color=auto redis
[root@0bf9cd2b4639 /]# redis-cli -p 8002 -a qhdks123
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.1:8002> info replication
# Replication
role:slave
master_host:172.19.0.10
master_port:8001
master_link_status:up
master_last_io_seconds_ago:5
master_sync_in_progress:0
slave_repl_offset:126
slave_priority:100
slave_read_only:1
connected_slaves:0
master_replid:75fba13c9d4ab5653fb1634aa7cd4dbcb5c4e5f9
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:126
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:126
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