第三篇
Prismafeelingsthird
mongodb
这边总结一下以replicaSet方式安装mongodb的方法，还挺烧脑的我就不拽英文了。
第一步 deploy一个mongodb：
首先创建一个网络和一个存储：
docker network create mongo-cluster
docker volume create mongodb-data
之所以要提前创建，主要是为了数据持久化，还有添加keyfile之类的操作，如果没有持久化的存储，那重新构建容器就会丢失认证文件了。
然后使用docker compose：
version: '3.8'
services:
mongo:
image: mongo:latest
container_name: mongodb
hostname: mongodb
restart: unless-stopped
environment:
MONGO_INITDB_ROOT_USERNAME: <username>
MONGO_INITDB_ROOT_PASSWORD: <password>
MONGO_REPLICA_SET_NAME: rs0
volumes:
- mongodb-data:/data
ports:
- 37017:27017
networks:
- mongo-cluster
# healthcheck:
# test: echo "try { rs.status() } catch (err) { rs.initiate({_id:'rs0',members:[{_id:0,host:'mongodb'}]}) }" | mongosh --port 27017 --quiet
# interval: 10s
# timeout: 30s
# start_period: 0s
# start_interval: 1s
# retries: 30
# command: 'mongod --replSet rs0 --bind_ip localhost,mongo --keyFile /data/keyfile'
volumes:
mongodb-data:
external: true
networks:
mongo-cluster:
第一次运行时请一定保持上面注释掉的部分，在我的实际部署中，我试用了几种网络上查到的方法，都无法一次部署成功。所以需要部署两次，第二次部署的时候的时候再使用全部的healthcheck和keyfile认证。
services:
mongo:
image: mongo:latest
container_name: mongodb
hostname: mongodb
restart: unless-stopped
environment:
MONGO_INITDB_ROOT_USERNAME: xdream
MONGO_INITDB_ROOT_PASSWORD: sima5654
MONGO_REPLICA_SET_NAME: rs0
volumes:
- $PWD/DBdata:/data/db
- $PWD/mongod.conf:/etc/mongod.conf
- $PWD/mongodb-keyfile:/data/mongodb-keyfile
networks:
macnet:
ipv4_address: 192.168.50.17
#healthcheck:
# test: test $$(echo "rs.initiate().ok || rs.status().ok" | mongosh -u xdream -p sima5654 --quiet)
# interval: 60s
# timeout: 30s
# retries: 5
# start_period: 30s
#command: "mongod --bind_ip_all --replSet rs0 --keyFile /data/mongodb-keyfile"
healthcheck:
test: echo "try { rs.status() } catch (err) { rs.initiate({_id:'rs0',members:[{_id:0,host:'mongodb'}]}) }" | mongosh -u xdream -p sima5654 --quiet
interval: 10s
timeout: 30s
start_period: 0s
start_interval: 1s
retries: 30
command: 'mongod --replSet rs0 --bind_ip_all --keyFile /data/mongodb-keyfile'
networks:
macnet:
external: true
name: macnet
第二步：升级mongodb到replicaSet
...
参考资料
test
- https://www.mongodb.com/compatibility/deploying-a-mongodb-cluster-with-docker