我用 dynamodb 中只有一个表制作了一个简单的 nodejs 应用程序。我正在使用 Vogels作为数据包装器。 如果我不对它进行 docker 化，它会工作得很好。
我也尝试按照在开发模式下运行应用程序的方式运行 docker。那也没有用。
这是我用来创建表格的代码:
module.exports = function () {
const vogels = require('vogels');
// const AWS= require('aws-sdk');
const Lr = require("../api/models/LRModel");
if (process.env.NODE_ENV === "test") {
AWS.config.update({ accessKeyId: "myKeyId", secretAccessKey: "secretKey", region: "us-west-2" });
vogels.dynamoDriver(new AWS.DynamoDB({ endpoint: 'http://localhost:8000' }));
} else {
console.log("AWS access key=", process.env.AWS_ACCESS_KEY, "AWS Secret key=", process.env.AWS_SECRET_KEY, "AWS Region =", process.env.AWS_REGION);
vogels.AWS.config.update({accessKeyId: process.env.AWS_ACCESS_KEY, secretAccessKey: process.env.AWS_SECRET_KEY, region: process.env.AWS_REGION, sslEnabled: false });
}
vogels.createTables({
'lrs': {readCapacity: 10, writeCapacity: 10}
}, function(err) {
if (err) {
console.log('Error creating tables: ', err);
} else {
console.log('Tables have been created');
}
});
}
这是我在 docker 中遇到的错误:
server-0 | Error creating tables: { TimeoutError: Missing credentials in config
server-0 | at ClientRequest.<anonymous> (/app/node_modules/vogels/node_modules/aws-sdk/lib/http/node.js:61:34)
server-0 | at ClientRequest.g (events.js:291:16)
server-0 | at emitNone (events.js:86:13)
server-0 | at ClientRequest.emit (events.js:185:7)
server-0 | at Socket.emitTimeout (_http_client.js:626:10)
server-0 | at Socket.g (events.js:291:16)
server-0 | at emitNone (events.js:86:13)
server-0 | at Socket.emit (events.js:185:7)
server-0 | at Socket._onTimeout (net.js:339:8)
server-0 | at ontimeout (timers.js:365:14)
server-0 | message: 'Missing credentials in config',
server-0 | code: 'CredentialsError',
server-0 | time: 2017-06-29T05:36:23.724Z,
server-0 | originalError:
server-0 | { message: 'Could not load credentials from any providers',
server-0 | code: 'CredentialsError',
server-0 | time: 2017-06-29T05:36:23.724Z,
server-0 | originalError:
server-0 | { message: 'Missing credentials in config',
server-0 | code: 'CredentialsError',
server-0 | time: 2017-06-29T05:36:23.721Z,
server-0 | originalError: [Object] } } }
当我在 WITHOUT docker 上运行它时，我清楚地注意到一件事是 dynamodb 端点是一个 http 端点。这是从 https://github.com/aws/aws-sdk-js/blob/8904e9c730fb2fccf9d201f66266a6e2cbb75348/lib/http/node.js 记录的端点
(第 13 行)。
server-0 | Endpoint {
server-0 | protocol: 'https:',
server-0 | host: 'dynamodb.us-west-1.amazonaws.com',
server-0 | port: 443,
server-0 | hostname: 'dynamodb.us-west-1.amazonaws.com',
server-0 | pathname: '/',
server-0 | path: '/',
server-0 | href: 'https://dynamodb.us-west-1.amazonaws.com/',
server-0 | constructor: { [Function: Endpoint] __super__: [Function: Object] } }
当我WITH docker 运行它时，dynamodb 端点是一个httpS 端点。这是从 https://github.com/aws/aws-sdk-js/blob/8904e9c730fb2fccf9d201f66266a6e2cbb75348/lib/http/node.js 记录的端点
(第 13 行)。
server-0 | Endpoint {
server-0 | protocol: 'http:',
server-0 | host: '169.254.169.254',
server-0 | port: 80,
server-0 | hostname: '169.254.169.254',
server-0 | pathname: '/latest/meta-data/iam/security-credentials/',
server-0 | path: '/latest/meta-data/iam/security-credentials/',
server-0 | href: 'http://169.254.169.254/latest/meta-data/iam/security-credentials/' }
我哪里出错了？
最佳答案
当我在不使用 docker 的情况下运行应用程序时，将从 /.aws/credentials 中提取凭据。我的印象是它是通过 vogels.AWS.config.update({accessKeyId: process.env.AWS_ACCESS_KEY, secretAccessKey: process.env.AWS_SECRET_KEY, region: process.env.AWS_REGION, sslEnabled: false } );
我在 aws-sdk 的 config.js 中记录了 update 函数中的选项，并在 friend 的输入帮助下找到了这个。
罪魁祸首似乎是表定义应该在 up config 更新之后。
我带来了这一行 const Lr = require("../api/models/LRModel");
在 config.update 下，它现在运行良好
关于node.js - Docker Dynamodb 错误 : Nodejs App with dynamodb does not work in docker but works without it，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44819541/