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ERROR: The Compose file './docker-compose.yml' is invalid because: services.jenkins.networks contains an invalid type – CentOS

ERROR: The Compose file ‘./docker-compose.yml’ is invalid because:
services.jenkins.networks contains an invalid type, it should be an array, or an object

version: '3'
services:
  jenkins:
    container_name: jenkins
    image: jenkins
    ports:
      - "8080:8080"
    volumes:
      - "$PWD/jenkins_home:/var/jenkins_home"
    networks:
      -net
networks:
  net:

Docker-Compose – 1.26.0, build d4451659 ||
Jenkins for docker – Official Image ||
Linux Type – Cent-OS 7 minimal launched on AWS

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2

Answers


  1. 0

    try a space at line 11: – net instead of -net

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  2. 0

    using aliases would make your life easier.

    version: '3.5'
services:

      jenkins-server:
    .
    .
    .
        networks:
          jenkins:
            aliases:
              - jenkins

    at the bottom of the file making the network external would also keep the network when you do docker-compose down:

    networks:
  jenkins:
    external: true

    @aiman09 is also right about the space. Yml is very rigid with spaces .

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