所以我在同一个EC2示例上有3个容器- Nodejs，DB和Flask。Nodejs与DB容器连接良好，所有路由都正常工作。有一个从Nodejs到flask的路由给出了“内部服务器错误”。我在任务定义中使用“host”networkMode，容器之间的连接可以使用'localhost：xxxx'实现。
post请求发送一个图像文件，并返回一个json作为响应。
相同的路由工作正常，并给出正确的结果，当我从我的本地测试：即，本地路由上的Node容器到AWS EC2上的Flask容器。
我不明白EC2端的问题是什么，但在本地工作正常。所有的入站规则都是正确的。节点在端口3000， flask 在端口5000
连接到flask API的节点上的代码：

form.append('image', fs.createReadStream(path.join(path.resolve(''),'/assets/images',   image.filename)));

 /**Redirect to flask API with image fileand delete from local*/
 const urlProxy = new Proxy(redirectMapping, validator);
 const response = await fetch(urlProxy.predict, { method: 'POST', body: form });
 const flaskData = await response.json();
 await unlink(path.join(path.resolve(''),'/assets/images', image.filename))

下面是task-definition.yaml中的容器定义：

"containerDefinitions": [
        {
            "name": "KlemFlask",
            "image": "klemrepo:latest",
            "cpu": 0,
            "memoryReservation": 128,
            "portMappings": [
                {
                    "containerPort": 5000,
                    "hostPort": 5000,
                    "protocol": "tcp"
                }
            ],
            "essential": true,
            "environment": [],
            "mountPoints": [],
            "volumesFrom": []
         
            }
        },
        {
            "name": "klemweb",
            "image": "klemtech/node-prod",
            "cpu": 0,
            "memoryReservation": 50,
            "portMappings": [
                {
                    "containerPort": 3000,
                    "hostPort": 3000,
                    "protocol": "tcp"
                }
            ],
            "essential": true,
            "environment": [],
            "environmentFiles": [
                {
                    "value": "klempgdata/node.env",
                    "type": "s3"
                }
            ],
            "mountPoints": [],
            "volumesFrom": [],
            "dependsOn": [
                {
                    "containerName": "klemdb",
                    "condition": "START"
                }
            ]
        },
        {
            "name": "klemdb",
            "image": "postgres:14-alpine",
            "cpu": 0,
            "memoryReservation": 50,
            "portMappings": [
                {
                    "containerPort": 5432,
                    "hostPort": 5432,
                    "protocol": "tcp"
                }
            ],
            "essential": true,
            "environment": [],
            "environmentFiles": [
                {
                    "value": "klempgdata/database.env",
                    "type": "s3"
                }
            ],
            "mountPoints": [
                {
                    "sourceVolume": "pgdata",
                    "containerPath": "/var/lib/postgresql/data"
                }
            ],
            "volumesFrom": []
        }