Docker环境下MongoDB与应用容器连接失败求助
2026-7-18
问题：Docker部署的Chat-UI应用无法连接MongoDB数据库
我用Docker启动了MongoDB（端口映射到27017），但启动依赖该数据库的chat-ui应用容器时，遇到连接错误：MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017
我尝试过以下方案，但都没解决问题：
- 按照跨容器连接的方案，把数据库连接地址从
mongodb://localhost:27017改成mongodb://myip:27017 - 尝试切换到在线MongoDB数据库，却出现认证错误：
MongoServerError: bad auth : authentication failed
以下是chat-ui应用的启动日志：
docker run chat-ui ------------- __/\\\\\\\\\\\\\\\\\____/\\\\____________/\\\\____/\\\\\\\\\\_____ _\/\\\\/////////\\\\_\/\\\\\\\\________/\\\\\\\\__/\\\\///////\\\\___ _\/\\\\_______\/\\\\_\/\\\\//\\\\____/\\\\//\\\\_\\///______\\//\\\\__ _\/\\\\\\\\\\\\\\\\\/__\/\\\\\\///\\\\/\\\\/_\/\\\\___________/\\\\/___ _\/\\\\/////////____\/\\\\__\\///\\\\/___\/\\\\________/\\\\//_____ _\/\\\\_____________\/\\\\____\\///_____\/\\\\_____/\\\\//________ _\/\\\\_____________\/\\\\_____________\/\\\\___/\\\\/___________ _\/\\\\_____________\/\\\\_____________\/\\\\__/\\\\\\\\\\\\\\\\\\\_ _\\///______________\\///______________\\///__\\///////////////__ Runtime Edition PM2 is a Production Process Manager for Node.js applications with a built-in Load Balancer. Start and Daemonize any application: $ pm2 start app.js Load Balance 4 instances of api.js: $ pm2 start api.js -i 4 Monitor in production: $ pm2 monitor Make pm2 auto-boot at server restart: $ pm2 startup To go further checkout: http://pm2.io/ ------------- pm2 launched in no-daemon mode (you can add DEBUG="*" env variable to get more messages) 2023-06-19T09:18:59: PM2 log: Launching in no daemon mode 2023-06-19T09:18:59: PM2 log: [PM2] Starting /app/build/index.js in cluster_mode (0 instance) 2023-06-19T09:18:59: PM2 log: App [index:0] starting in -cluster mode- 2023-06-19T09:18:59: PM2 log: App [index:0] online 2023-06-19T09:18:59: PM2 log: App [index:1] starting in -cluster mode- 2023-06-19T09:18:59: PM2 log: App [index:1] online 2023-06-19T09:18:59: PM2 log: App [index:2] starting in -cluster mode- 2023-06-19T09:18:59: PM2 log: App [index:2] online 2023-06-19T09:18:59: PM2 log: App [index:3] starting in -cluster mode- 2023-06-19T09:18:59: PM2 log: App [index:3] online 2023-06-19T09:18:59: PM2 log: [PM2] Done. 2023-06-19T09:18:59: PM2 log: ┌────┬──────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬──────────┬──────────┬──────────┬──────────┐ │ id │ name │ namespace │ version │ mode │ pid │ uptime │ ↺ │ status │ cpu │ mem │ user │ watching │ ├────┼──────────┼─────────────┼─────────┼─────────┼──────────┼────────┼──────┼───────────┼──────────┼──────────┼──────────┼──────────┤ │ 0 │ index │ default │ 0.3.0 │ cluster │ 19 │ 0s │ 0 │ online │ 0% │ 61.7mb │ root │ disabled │ │ 1 │ index │ default │ 0.3.0 │ cluster │ 26 │ 0s │ 0 │ online │ 0% │ 52.9mb │ root │ disabled │ │ 2 │ index │ default │ 0.3.0 │ cluster │ 33 │ 0s │ 0 │ online │ 0% │ 51.0mb │ root │ disabled │ │ 3 │ index │ default │ 0.3.0 │ cluster │ 44 │ 0s │ 0 │ online │ 0% │ 45.3mb │ root │ disabled │ └────┴──────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴──────────┴──────────┴──────────┴──────────┘ 2023-06-19T09:18:59: PM2 log: [--no-daemon] Continue to stream logs 2023-06-19T09:18:59: PM2 log: [--no-daemon] Exit on target PM2 exit pid=8 09:18:59 0|index | Listening on 0.0.0.0:3000 09:18:59 1|index | Listening on 0.0.0.0:3000 09:18:59 2|index | Listening on 0.0.0.0:3000 09:18:59 3|index | Listening on 0.0.0.0:3000 09:19:29 0|index | MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 09:19:29 0|index | at Timeout._onTimeout (/app/node_modules/mongodb/lib/sdam/topology.js:277:38) 09:19:29 0|index | at listOnTimeout (node:internal/timers:573:17) 09:19:29 0|index | at process.processTimers (node:internal/timers:514:7) { 09:19:29 0|index | reason: TopologyDescription { 09:19:29 0|index | type: 'Unknown', 09:19:29 0|index | servers: Map(1) { 'localhost:27017' => [ServerDescription] }, 09:19:29 0|index | stale: false, 09:19:29 0|index | compatible: true, 09:19:29 0|index | heartbeatFrequencyMS: 10000, 09:19:29 0|index | localThresholdMS: 15, 09:19:29 0|index | setName: null, 09:19:29 0|index | maxElectionId: null, 09:19:29 0|index | maxSetVersion: null, 09:19:29 0|index | commonWireVersion: 0, 09:19:29 0|index | logicalSessionTimeoutMinutes: null 09:19:29 0|index | }, 09:19:29 0|index | code: undefined, 09:19:29 0|index | [Symbol(errorLabels)]: Set(0) {} 09:19:29 0|index | } 09:19:29 1|index | MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 09:19:29 1|index | at Timeout._onTimeout (/app/node_modules/mongodb/lib/sdam/topology.js:277:38) 09:19:29 1|index | at listOnTimeout (node:internal/timers:573:17) 09:19:29 1|index | at process.processTimers (node:internal/timers:514:7) { 09:19:29 1|index | reason: TopologyDescription { 09:19:29 1|index | type: 'Unknown', 09:19:29 1|index | servers: Map(1) { 'localhost:27017' => [ServerDescription] }, 09:19:29 1|index | stale: false, 09:19:29 1|index | compatible: true, 09:19:29 1|index | heartbeatFrequencyMS: 10000, 09:19:29 1|index | localThresholdMS: 15, 09:19:29 1|index | setName: null, 09:19:29 1|index | maxElectionId: null, 09:19:29 1|index | maxSetVersion: null, 09:19:29 1|index | commonWireVersion: 0, 09:19:29 1|index | logicalSessionTimeoutMinutes: null 09:19:29 1|index | }, 09:19:29 1|index | code: undefined, 09:19:29 1|index | [Symbol(errorLabels)]: Set(0) {} 09:19:29 1|index | } 09:19:29 2|index | MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 09:19:29 2|index | at Timeout._onTimeout (/app/node_modules/mongodb/lib/sdam/topology.js:277:38) 09:19:29 2|index | at listOnTimeout (node:internal/timers:573:17) 09:19:29 2|index | at process.processTimers (node:internal/timers:514:7) { 09:19:29 2|index | reason: TopologyDescription { 09:19:29 2|index | type: 'Unknown', 09:19:29 2|index | servers: Map(1) { 'localhost:27017' => [ServerDescription] }, 09:19:29 2|index | stale: false, 09:19:29 2|index | compatible: true, 09:19:29 2|index | heartbeatFrequencyMS: 10000, 09:19:29 2|index | localThresholdMS: 15, 09:19:29 2|index | setName: null, 09:19:29 2|index | maxElectionId: null, 09:19:29 2|index | maxSetVersion: null, 09:19:29 2|index | commonWireVersion: 0, 09:19:29 2|index | logicalSessionTimeoutMinutes: null 09:19:29 2|index | }, 09:19:29 2|index | code: undefined, 09:19:29 2|index | [Symbol(errorLabels)]: Set(0) {} 09:19:29 2|index | } 09:19:29 3|index | MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 09:19:29 3|index | at Timeout._onTimeout (/app/node_modules/mongodb/lib/sdam/topology.js:277:38) 09:19:29 3|index | at listOnTimeout (node:internal/timers:573:17) 09:19:29 3|index | at process.processTimers (node:internal/timers:514:7) { 09:19:29 3|index | reason: TopologyDescription { 09:19:29 3|index | type: 'Unknown', 09:19:29 3|index | servers: Map(1) { 'localhost:27017' => [ServerDescription] }, 09:19:29 3|index | stale: false, 09:19:29 3|index | compatible: true, 09:19:29 3|index | heartbeatFrequencyMS: 10000, 09:19:29 3|index | localThresholdMS: 15, 09:19:29 3|index | setName: null, 09:19:29 3|index | maxElectionId: null, 09:19:29 3|index | maxSetVersion: null, 09:19:29 3|index | commonWireVersion: 0, 09:19:29 3|index | logicalSessionTimeoutMinutes: null 09:19:29 3|index | }, 09:19:29 3|index | code: undefined, 09:19:29 3|index | [Symbol(errorLabels)]: Set(0) {} 09:19:29 3|index | }
内容的提问来源于stack exchange，提问作者SCM
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