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From "Mao Geng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-6169) --docker_config doesn't work with amazon-ecr-credential-helper
Date Tue, 20 Sep 2016 07:42:20 GMT

    [ https://issues.apache.org/jira/browse/MESOS-6169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15505909#comment-15505909
] 

Mao Geng commented on MESOS-6169:
---------------------------------

Sorry. The error only occurs when the .docker/config.json has no "auths". I corrected the
description accordingly. 
When I set config.json with "auths" like below (and restarted mesos agent), actually it works
well with the https://github.com/awslabs/amazon-ecr-credential-helper. 
{code}
{
    "credsStore": "ecr-login",
    "auths": {
        "xxxxxxxxxxxx.dkr.ecr.us-east-1.amazonaws.com": {
        }
    }
}
{code}

> --docker_config doesn't work with amazon-ecr-credential-helper
> --------------------------------------------------------------
>
>                 Key: MESOS-6169
>                 URL: https://issues.apache.org/jira/browse/MESOS-6169
>             Project: Mesos
>          Issue Type: Bug
>          Components: docker
>    Affects Versions: 1.0.0
>            Reporter: Mao Geng
>            Assignee: Gilbert Song
>
> We are using AWS ECR as docker registry and using https://github.com/awslabs/amazon-ecr-credential-helper
to get credential automatically. 
> As amazon-ecr-credential-helper required, we set a .docker/config.json file like below:

> {code}
> {
>     "credsStore": "ecr-login"
> }
> {code}
> According to the "credsStore" field, docker engine will invoke a "docker-credential-ecr-login"
command (which we've installed into /usr/bin/) to get registry credential whenever required,
for example when executing docker pull/push. 
> This works fine when we tar the .docker/config.json and use uris prarameter to pull the
tar.gz file for every task using docker image. 
> But when I try the new --docker_config option, it doesn't work. The task failed to pull
the image from ECR. The error message is 
> {code}
> Failed to launch container: Failed to run 'docker -H unix:///var/run/docker.sock pull
xxxxxxxxxxxx.dkr.ecr.us-east-1.amazonaws.com/<image_name>:latest': exited with status
1; stderr='WARNING: Error loading config file:/tmp/28Vd2O/.dockercfg - The Auth config file
is empty unauthorized: authentication required '
> {code}
> Checked the source at https://github.com/apache/mesos/blob/master/src/docker/docker.cpp,
but don't understand why above errors message says loading a temp .dockercfg file, which doesn't
exist btw. I assume mesos should pull the image using the config.json file I set to --docker_config,
right? 



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