是否有使用 docker compose 复制容器的方法？

编程问答 2022-05-31

问题描述

我没有使用像 docker swarm 或 Kubernetes 这样的容器编排技术。 我的目标是用不同的 IP:Port 复制 ca0 的服务来监听请求。这是维持 ca0 提供的服务的高可用性 (HA) 所必需的。 ca0的组成如下图所示：

version: '2'

networks:
  byfn:

services:
  ca0:
    image: hyperledger/fabric-ca:$IMAGE_TAG
    environment:
      - FABRIC_CA_HOME=/etc/hyperledger/fabric-ca-server
      - FABRIC_CA_SERVER_CA_NAME=ca-org1
      - FABRIC_CA_SERVER_TLS_ENABLED=true
      - FABRIC_CA_SERVER_TLS_CERTFILE=/etc/hyperledger/fabric-ca-server-config/ca.org1.example.com-cert.pem
      - FABRIC_CA_SERVER_TLS_KEYFILE=/etc/hyperledger/fabric-ca-server-config/key.pem
      - FABRIC_CA_SERVER_PORT=7054
    ports:
      - "7054:7054"
    command: sh -c 'fabric-ca-server start --ca.certfile /etc/hyperledger/fabric-ca-server-config/ca.org1.example.com-cert.pem --ca.keyfile /etc/hyperledger/fabric-ca-server-config/key.pem -b admin:adminpw -d'
    volumes:
      - ./crypto-config/peerOrganizations/org1.example.com/ca/:/etc/hyperledger/fabric-ca-server-config
    container_name: ca0_peerOrg1
    networks:
      - byfn

再次，要复制同一个服务，该服务命名为ca1，容器名称为ca1_peerOrg，我只是更改了Port，并将其附加到如上定义的先前ca0服务中。 ca1 服务定义如下：

# Replicated CA
ca1:
    image: hyperledger/fabric-ca:$IMAGE_TAG
    environment:
      - FABRIC_CA_HOME=/etc/hyperledger/fabric-ca-server
      - FABRIC_CA_SERVER_CA_NAME=ca-org1
      - FABRIC_CA_SERVER_TLS_ENABLED=true
      - FABRIC_CA_SERVER_TLS_CERTFILE=/etc/hyperledger/fabric-ca-server-config/ca.org1.example.com-cert.pem
      - FABRIC_CA_SERVER_TLS_KEYFILE=/etc/hyperledger/fabric-ca-server-config/key.pem
      - FABRIC_CA_SERVER_PORT=8054
    ports:
      - "8054:8054"
    command: sh -c 'fabric-ca-server start --ca.certfile /etc/hyperledger/fabric-ca-server-config/ca.org1.example.com-cert.pem --ca.keyfile /etc/hyperledger/fabric-ca-server-config/key.pem -b admin:adminpw -d'
    volumes:
      - ./crypto-config/peerOrganizations/org1.example.com/ca/:/etc/hyperledger/fabric-ca-server-config
    container_name: ca1_peerOrg1
    networks:
      - byfn

然后我运行 docker compose 文件并得到如下错误：

        gopal@gopal:~/Dappdev/first/fabric-samples/first-network$ docker-compose -f docker-compose-ca.yaml up  
ERROR: The Compose file './docker-compose-ca.yaml' is invalid because:
Invalid top-level property "ca1". Valid top-level sections for this Compose file are: services,version,networks,volumes,and extensions starting with "x-".

You might be seeing this error because you're using the wrong Compose file version. Either specify a supported version (e.g "2.2" or "3.3") and place your service deFinitions under the `services` key,or omit the `version` key and place your service deFinitions at the root of the file to use version 1.
For more on the Compose file format versions,see https://docs.docker.com/compose/compose-file/

我创建复制容器的方法不正确。

如何复制具有不同选定端口的容器？

解决方法

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docker-composehyperledger-fabric-ca