AWS and CodeCommit Configure for Multiple Accounts

AWS Config

# ~/.aws/config

[profile account1]
region = us-east-2

[profile account2]
region = us-east-2

AWS Credentials

# ~/.aws/credentials

[account1]
aws_access_key_id = ACCESS-KEY-ID-1
aws_secret_access_key = SECRET-KEY-ID-1

[account2]
aws_access_key_id = ACCESS-KEY-ID-2
aws_secret_access_key = SECRET-KEY-ID-2

SSH Config

# ~/.ssh/config

Host account1
        Hostname git-codecommit.us-east-1.amazonaws.com
        User SSH-KEY-ID-1
        IdentityFile ~/.ssh/id_rsa

Host account2
        Hostname git-codecommit.us-east-1.amazonaws.com
        User SSH-KEY-UID-2
        IdentityFile ~/.ssh/id_rsa

Generate AWS config:
aws configure --profile account1

Generate Git Config:
git config --local credential.helper '!aws codecommit credential-helper --profile account1 $@'

Clone Repo (replace URL with account hostname):
git clone ssh://account1/v1/repos/repo-name

For CDK AWS_PROFILE=account1 cdk ls works but cdk ls --profile account1 doesn't?