running git clone against AWS CodeCommits gets me a 403 error

Question

My local laptop is a Mac.

1. The ssh key is configured properly. This is the content of ~/.ssh/config

   Host barthea Hostname git-codecommit.us-east

Answer 1

My case in OSX.

The first step:

git config --global credential.helper '!aws codecommit credential-helper $@'
git config --global credentials.helper UseHttpPath=true

However, verifying git config --list --show-origin

file:/usr/local/etc/gitconfig   credential.https://git-codecommit.eu-west-1.amazonaws.com.helper=!aws codecommit credential-helper $@
file:/usr/local/etc/gitconfig   credential.helper=osxkeychain
file:/Users/mine/.gitconfig  user.name=my-user
file:/Users/mine/.gitconfig  user.email=my@gmail.com
file:/Users/mine/.gitconfig  filter.lfs.clean=git-lfs clean -- %f
file:/Users/mine/.gitconfig  filter.lfs.smudge=git-lfs smudge -- %f
file:/Users/mine/.gitconfig  filter.lfs.process=git-lfs filter-process
file:/Users/mine/.gitconfig  filter.lfs.required=true
file:/Users/mine/.gitconfig  credential.helper=!aws codecommit credential-helper $@
file:/Users/mine/.gitconfig  credential.usehttppath=true

The first line was not present before, and git was using osxkeychain with precedence. Hence, I had to do git config --system ...

cat /usr/local/etc/gitconfig                                             
[credential "https://git-codecommit.eu-west-1.amazonaws.com"]
    helper = !aws codecommit credential-helper $@
    UseHttpPath = true
[credential]
    helper = osxkeychain

So the URL was specified in order to fallback in case another credentials are stored.

Update https://docs.aws.amazon.com/codecommit/latest/userguide/troubleshooting-ch.html

For some reason, UseHttpPath = true seems not to be added sometimes. So it can (should) be added under [credential]