https://github.com/senssei/mongo-cluster-docker
基于上面仓库，改造了一个副本集。
https://github.com/kxtry/mongo-cluster-docker
1.副本集docker-compose脚本
version: '3'
services:
mgoprimary:
container_name: "mgoprimary"
image: mongo:4.2
ports:
- "27017:27017"
command: mongod --replSet vmlocal --port 27017 --oplogSize 16
links:
- mgoreplica1:mgoreplica1
- mgoreplica2:mgoreplica2
restart: always
extra_hosts:
- "mgo.db.com:{{extern_ip}}"
volumes:
- /etc/localtime:/etc/localtime:ro
- /etc/timezone:/etc/timezone:ro
- ./data/mgoprimary/data:/data/db
mgoreplica1:
container_name: "mgoreplica1"
image: mongo:4.2
ports:
- "27018:27017"
command: mongod --replSet vmlocal --port 27017 --oplogSize 16
restart: always
extra_hosts:
- "mgo.db.com:{{extern_ip}}"
volumes:
- /etc/localtime:/etc/localtime:ro
- /etc/timezone:/etc/timezone:ro
- ./data/mgoreplica1/data:/data/db
mgoreplica2:
container_name: "mgoreplica2"
image: mongo:4.2
ports:
- "27019:27017"
command: mongod --replSet vmlocal --port 27017 --oplogSize 16
restart: always
extra_hosts:
- "mgo.db.com:{{extern_ip}}"
volumes:
- /etc/localtime:/etc/localtime:ro
- /etc/timezone:/etc/timezone:ro
- ./data/mgoreplica2/data:/data/db
setup-vmlocal:
container_name: "setup-vmlocal"
image: mongo:4.2
depends_on:
- "mgoprimary"
- "mgoreplica1"
- "mgoreplica2"
extra_hosts:
- "mgo.db.com:{{extern_ip}}"
links:
- mgoprimary:mgoprimary
- mgoreplica1:mgoreplica1
- mgoreplica2:mgoreplica2
volumes:
- ./scripts:/scripts
environment:
- MONGO1=mgo.db.com:27017
- MONGO2=mgo.db.com:27018
- MONGO3=mgo.db.com:27019
- RS=vmlocal
entrypoint: [ "/scripts/setup.sh" ] |
3.与docker-compose.yml相同子目录下的./scripts/setup.sh脚本
#!/bin/bash
mongodb1="${MONGO1}"
mongodb2="${MONGO2}"
mongodb3="${MONGO3}"
echo "Waiting for startup.."
until mongo --host ${mongodb1} --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 2)' &>/dev/null; do
printf '.'
sleep 1
done
echo "Started.."
echo setup.sh time now: `date +"%T" `
mongo --host ${mongodb1} <<EOF
var cfg = {
"_id": "${RS}",
"protocolVersion": 1,
"members": [
{
"_id": 0,
"host": "${mongodb1}"
},
{
"_id": 1,
"host": "${mongodb2}"
},
{
"_id": 2,
"host": "${mongodb3}"
}
]
};
rs.initiate(cfg, { force: true });
rs.reconfig(cfg, { force: true });
EOF |
3.构建脚本build_cluster.sh
#!/bin/sh
path_current=`pwd`
path_script=$(cd "$(dirname "$0")"; pwd)
mode=$1
extern_ip=$2
case "$mode" in
'build')
if [ -f $path_script/docker-compose.yml ]; then
echo 'the docker-compose.yml had been exist. if you want to continue, remove it.'
exit 1
fi
/bin/cp $path_script/docker-compose.yml.template $path_script/docker-compose.yml && echo "$path_script/docker-compose.yml" | xargs /bin/sed -i "s#{{extern_ip}}#$extern_ip#g"
echo 'success to build the file.'
;;
*)
basename=`basename "$0"`
echo "Usage: $basename {build}{extern_ip}"
echo "---$basename build 192.168.10.104"
;;
esac |