mongodb开启副本集功能

#--------------------------------------------
# 此脚本用于开启Mongodb数据库的副本集功能
# author：cch
# date：2022-09-13
#--------------------------------------------
 
#!/bin/bash
 
#admin用户的密码
admin_pwd="admin"
 
#mongodb服务端口
server_port=27017
 
#需要操作的数据库
database="inventory"
 
#新建用户的用户名
new_user_name="newUser"
#新建用户的密码
new_user_pwd="123456"
 
#开启副本集
mongo localhost:${server_port}/${database} <<-EOF
    rs.initiate({
        _id: "rs0",
        members: [ { _id: 0, host: "localhost:27017" } ]
    });
EOF
 
#是否存在admin账户，不存在会创建一个，密码是上面指定的密码
#如果已经存在了admin账户，可以把这3行注释掉
mongo localhost:${server_port}/admin <<-EOF
    db.createUser({ user: 'admin', pwd: '${admin_pwd}', roles: [ { role: "userAdminAnyDatabase", db: "admin" } ] });
EOF
 
# 配置mongodb事件监听角色
mongo -u admin -p ${admin_pwd} localhost:${server_port}/admin <<-EOF
    db.runCommand({
        createRole: "listDatabases",
        privileges: [
            { resource: { cluster : true }, actions: ["listDatabases"]}
        ],
        roles: []
    });
    db.runCommand({
        createRole: "readChangeStream",
        privileges: [
            { resource: { db: "", collection: ""}, actions: [ "find", "changeStream" ] }
        ],
        roles: []
    });
EOF
 
 
sleep 1
#创建用户
mongo -u admin -p ${admin_pwd} localhost:${server_port}/admin <<-EOF
    use ${database}
    
    db.createUser({
        user: '${new_user_name}',
        pwd: '${new_user_pwd}',
        roles: [
            { role: "readWrite", db: "${database}" },
            { role: "read", db: "local" },
            { role: "listDatabases", db: "admin" },
            { role: "readChangeStream", db: "admin" },
            { role: "read", db: "config" },
            { role: "read", db: "admin" }
        ]
    });
EOF
echo "Created users"