How to pull an ECR image using Docker plugin / Pipeline (Docker BuildSlave)?

[Marco Pas]

Hi there we are tying to integrate a custom build of a docker Jenkins slave based on https://hub.docker.com/r/evarga/jenkins-slave/. 

We seem to hit a wall on how to pull these images from ECR into our buildslave nodes.

We have create a Docker Template which needs to pull the image but we cannot seem to get this working.

I guess it has something to do with providing the ECR credentials so the Docker Template can be pulled. But I could be wrong.

Currently when we try to kickoff the job. It just hangs without any feedback on:

[Pipeline] node
Still waiting to schedule task
Waiting for next available executor

When we try to use the default  'evarga/jenkins-slave:latest' the pull is executed immediatly. Any hints on how we can integrate ECR into the pulling of the Docke buildslave images?

We have install the ECR plugin but this gives no help.

Any help is appreciated 

- Marco

[Zoratto Thomas]

Hi,

I believe you cannot specify any credentials with the docker plugin. So if your repository requires authentication (docker hub private repo for example) it won't work. 

You can manually pull this image on the docker host though. Not really a good solution if you ask me

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