I have a small app which has only one application.ex and supervisor.
external dependency (ex_gram,) .
That’s it. No phoenix.
I did fly launch it detected heroku buildpack. and then threw following error.
failed to fetch builder image 'index.docker.io/heroku/buildpacks:20': resolve auth for ref index.docker.io/heroku/buildpacks:20: error getting credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``
What am I missing?
My first answer is “don’t use the buildpack for an Elixir app, a small Dockerfile will work better”.
But that error is weird, too. Do you have Docker running locally? It’s saying it can’t pull a buildpack.
on running
➜ ps aux | grep docker
I get
abhishektripathi 3272 0.0 0.0 4268176 540 s002 R+ 11:03PM 0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn --exclude-dir=.idea --exclude-dir=.tox docker
So, docker is not running locally.
I did not try to use buildpack. fly detected it automatically. What can I do?
See screenshot :
on a sidenote :
grep: aliased to grep --color=auto --exclude-dir={.bzr,CVS,.git,.hg,.svn,.idea,.tox}
Having this error today on Nodejs app as well.
Error failed to fetch an image or build from source: failed to fetch builder image 'index.docker.io/heroku/buildpacks:20': resolve auth for ref index.docker.io/heroku/buildpacks:20: error getting credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``
This solved the problem. Seems to be mac specific issue, not related with fly.