副本集 mongo docker-compose [英] replica Set mongo docker-compose
本文介绍了副本集 mongo docker-compose的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试使用 docker-compose 配置 mongodb replicaSet,但是当我停止主容器时,它似乎没有传递到辅助容器.
I'm trying to configure a mongodb replicaSet using docker-compose, but when I stop the master container it seems that it doesn't pass to the secondary.
redis:
image: redis
ports:
- "6379:6379"
mongo3:
hostname: mongo3
image: mongo
entrypoint: [ "/usr/bin/mongod", "--replSet", "rs", "--journal","--dbpath","/data/db","--smallfiles", "--rest" ]
volumes:
- ./data/mongo3:/data/db
ports:
- "27018:27017"
- "28018:28017"
restart: always
mongo2:
hostname: mongo2
image: mongo
entrypoint: [ "/usr/bin/mongod", "--replSet", "rs", "--journal","--dbpath","/data/db","--smallfiles", "--rest" ]
volumes:
- ./data/mongo2:/data/db
ports:
- "27019:27017"
- "28019:28017"
restart: always
mongo1:
hostname: mongo1
image: mongo
entrypoint: [ "/usr/bin/mongod", "--replSet", "rs", "--journal","--dbpath","/data/db","--smallfiles", "--rest" ]
volumes:
- ./data/mongo1:/data/db
ports:
- "27017:27017"
- "28017:28017"
links:
- mongo2:mongo2
- mongo3:mongo3
restart: always
web:
build: .
ports:
- "2000:2000"
volumes:
- .:/vip
links:
- redis
- mongo1
- mongo2
- mongo3
nginx:
restart: always
build: ./nginx/
ports:
- "80:80"
links:
- web:web
mongosetup:
image: mongo
links:
- mongo1:mongo1
- mongo2:mongo2
- mongo3:mongo3
volumes:
- ./scripts:/scripts
entrypoint: [ "/scripts/setup.sh" ]
setup.sh:
#!/bin/bash
MONGODB1=`ping -c 1 mongo1 | head -1 | cut -d "(" -f 2 | cut -d ")" -f 1`
MONGODB2=`ping -c 1 mongo2 | head -1 | cut -d "(" -f 2 | cut -d ")" -f 1`
MONGODB3=`ping -c 1 mongo3 | head -1 | cut -d "(" -f 2 | cut -d ")" -f 1`
echo "**********************************************" ${MONGODB1}
echo "Waiting for startup.."
until curl http://${MONGODB1}:28017/serverStatus?text=1 2>&1 | grep uptime | head -1; do
printf '.'
sleep 1
done
echo curl http://${MONGODB1}:28017/serverStatus?text=1 2>&1 | grep uptime | head -1
echo "Started.."
echo SETUP.sh time now: `date +"%T" `
mongo --host ${MONGODB1}:27017 <<EOF
var cfg = {
"_id": "rs",
"version": 1,
"members": [
{
"_id": 0,
"host": "${MONGODB1}:27017",
"priority": 2
},
{
"_id": 1,
"host": "${MONGODB2}:27017",
"priority": 0
},
{
"_id": 2,
"host": "${MONGODB3}:27017",
"priority": 0
}
],settings: {chainingAllowed: true}
};
rs.initiate(cfg, { force: true });
rs.reconfig(cfg, { force: true });
rs.slaveOk();
db.getMongo().setReadPref('nearest');
db.getMongo().setSlaveOk();
EOF
推荐答案
我遇到了类似的问题,并使用以下撰写文件解决了该问题:
I had a similar issue and resolved it with the following compose file:
version: "3.8"
services:
mongo1:
image: mongo:4.2
container_name: mongo1
command: ["--replSet", "my-replica-set", "--bind_ip_all", "--port", "30001"]
volumes:
- ./data/mongo-1:/data/db
ports:
- 30001:30001
healthcheck:
test: test $$(echo "rs.initiate({_id:'my-replica-set',members:[{_id:0,host:"mongo1:30001"},{_id:1,host:"mongo2:30002"},{_id:2,host:"mongo3:30003"}]}).ok || rs.status().ok" | mongo --port 30001 --quiet) -eq 1
interval: 10s
start_period: 30s
mongo2:
image: mongo:4.2
container_name: mongo2
command: ["--replSet", "my-replica-set", "--bind_ip_all", "--port", "30002"]
volumes:
- ./data/mongo-2:/data/db
ports:
- 30002:30002
mongo3:
image: mongo:4.2
container_name: mongo3
command: ["--replSet", "my-replica-set", "--bind_ip_all", "--port", "30003"]
volumes:
- ./data/mongo-3:/data/db
ports:
- 30003:30003
在我的 /etc/hosts
文件中包含以下内容:
with the following in my /etc/hosts
file:
127.0.0.1 mongo1
127.0.0.1 mongo2
127.0.0.1 mongo3
我在 GitHub 存储库中记录了它,并在此处发布了一篇小博文:
I documented it in a GitHub repo and with a little blog post here:
https://github.com/UpSync-Dev/docker-compose-mongo-replica-set
https://www.upsync.dev/2021/02/02/run-mongo-replica-set.html
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