no auth credentials when wrapping docker push cmd

After migrating to Fabric 2.0 my simple fab command to run a docker push doesn’t work anymore. For some reason, the shell doesn’t know I’m logged in. When I run the shell command outside Fabric it works fine. Any ideas what is going on?

@task
def push(c, tag):    
    c.run(f'docker push docker.company.com/app:{tag}')


The push refers to repository [docker.company.com/app]
f76a30813b1d: Preparing
1ead8c68efa3: Preparing
17b534c85a5f: Preparing
53d8d2a2e6ab: Preparing
0b7cd459baf0: Preparing
ddd403bcae47: Preparing
1f127cc5b31e: Preparing
b09178215597: Preparing
62345e64388b: Preparing
1f127cc5b31e: Waiting
ddd403bcae47: Waiting
62345e64388b: Waiting
b09178215597: Waiting
014cf8bfcb2d: Preparing
014cf8bfcb2d: Waiting
no basic auth credentials

[bitprophet]

Wondering if this is another permutation of #1752 - if docker is relying on env vars for its config or auth, that would cause this. Please try changing your v2 code to c.run(f"docker ...", replace_env=False) (i.e. just add replace_env=False to what you have now) and see if that makes it work?

[bitprophet]

Thanks! I’m going to close this as a sub-case of that linked issue, please follow it if interested. Once fixed this issue should effectively go away - Context.run() / Connection.local() will default to replace_env=False.