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dockerjenkinssynology

Docker Jenkins on Synology

I have setup a docker-container for jenkins (name: jenkins-01) on my Synology NAS. I also have setup the git-server provided by Synology on the same NAS. To access the git-repositories from jenkins-01 I created a user "jenkins" on the NAS.

My git-server on the NAS is accessible by SSH and I can access repositories from my desktop-machine.

This is an example of the URL I use:

ssh://jenkins@<ip>:<port>/volume1/gitrepos/<repo>

With that URL I can clone a from my desktop-machine. I also setup a docker container using the exact same docker-compose.yml-file as provided on my NAS on my desktop machine. Within that jenkins-instance I can create a pipline using the URL shown here without any problems. So basically I am sure that the URL and the SSH-credentials used are fine.

However when I try to do the same thing within the jenkins-instance running as docker container on my NAS, I can't get a connection to the same git-server using the URL. The message provided is that the URL is not valid. I also tried to replace the by the gateway-ip configured in the jenkins-instance.

To find out the gateway-ip I used the following command on the NAS:

docker container inspect jenkins-01

This is the docker-compose.yml I use:

version : "3"

services:
  app:
    image: jenkins/jenkins:lts-jdk11
    container_name: jenkins-01
    privileged: true
    user: root
    networks:
      vlan_devnet:
        ipv4_address: 172.18.100.2
    ports:
      - 51080:8080
      - 51000:50000
    volumes:
      - ./jenkins_home:/var/jenkins_home
      - ./etc/resolv.conf:/etc/resolv.conf
    environment:
      JAVA_OPTS: -Duser.timezone=CET
    restart: unless-stopped
        
networks:
  vlan_devnet:
    external: true

What do I miss?

I never figured this out and I no longer bother because I now use GitEA as Git-Server instead of the Synology Git-Server.

GitEA also provides a nice WebUI and similar functionality as GitHub - a very nice OpenSource project.

Because of that I will close this

Solution

  • I use now GitEA, so don't have to bother with the Synology Git-Server. I know this does not answer the original question - however it works for me.