AWS ECS awsvpc 在本地主机上没有通信

Question

我遇到了 ECS Fargate 上容器的问题，更具体地说，一个任务中的 2 个容器相互通信。

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根据链接的文章（https://aws.amazon.com/blogs/compute/task-networking-in-aws-fargate/），一旦在任务中配置了两个容器，任务中的任何其他容器都应该能够只需使用localhost或127.0.0.1与该容器进行通信。

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然而我可以\xe2\x80\x99t似乎得到这种行为。我尝试将其分解为最简单的形式 - 在 1 个容器上运行 nginx，端口映射为 80，并在另一个容器上运行一个简单的 curl 命令，但没有什么乐趣。

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我是否缺少某些内容或一些配置，需要执行这些操作才能让 2 个容器通过localhost或127.0.0.1在 ECS 任务定义中进行通信？

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具有 2 个容器的任务定义的 JSON 文件：

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{\n"requiresCompatibilities": [\n    "FARGATE"\n],\n"inferenceAccelerators": [],\n"containerDefinitions": [\n    {\n        "name": "container-a",\n        "image": "******.dkr.ecr.eu-west-1.amazonaws.com/repository-a:latest",\n        "memoryReservation": "2048",\n        "cpu": "1024",\n        "resourceRequirements": null,\n        "essential": true,\n        "portMappings": [\n            {\n                "containerPort": "5000",\n                "protocol": "tcp"\n            }\n        ],\n        "environment": null,\n        "environmentFiles": [],\n        "secrets": null,\n        "mountPoints": null,\n        "volumesFrom": null,\n        "hostname": null,\n        "user": null,\n        "workingDirectory": null,\n        "extraHosts": null,\n        "logConfiguration": {\n            "logDriver": "awslogs",\n            "options": {\n                "awslogs-group": "/ecs/test-task-definition",\n                "awslogs-region": "eu-west-1",\n                "awslogs-stream-prefix": "ecs"\n            }\n        },\n        "ulimits": null,\n        "dockerLabels": null,\n        "dependsOn": null,\n        "repositoryCredentials": {\n            "credentialsParameter": ""\n        }\n    },\n    {\n        "name": "container-b",\n        "image": "******.dkr.ecr.eu-west-1.amazonaws.com/repository-b:latest",\n        "memoryReservation": "2048",\n        "cpu": "1024",\n        "resourceRequirements": null,\n        "essential": true,\n        "portMappings": [],\n        "environment": null,\n        "environmentFiles": [],\n        "secrets": null,\n        "mountPoints": null,\n        "volumesFrom": null,\n        "hostname": null,\n        "user": null,\n        "workingDirectory": null,\n        "extraHosts": null,\n        "logConfiguration": {\n            "logDriver": "awslogs",\n            "options": {\n                "awslogs-group": "/ecs/test-task-definition",\n                "awslogs-region": "eu-west-1",\n                "awslogs-stream-prefix": "ecs"\n            }\n        },\n        "ulimits": null,\n        "dockerLabels": null,\n        "dependsOn": null,\n        "repositoryCredentials": {\n            "credentialsParameter": ""\n        }\n    }\n],\n"volumes": [],\n"networkMode": "awsvpc",\n"memory": "4096",\n"cpu": "2048",\n"executionRoleArn": "arn:aws:iam::******:role/ecr-execution-role",\n"family": "test-task-definition",\n"taskRoleArn": "arn:aws:iam::******:role/ecs-task-role",\n"tags": []\n}\n

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