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Enable AWS SAM local to run without Docker Desktop but Colima + Docker Daemon on MacOs
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aws-sam-colima.md

AWS SAM local commands without Docker Desktop

AWS SAM local commands check for the existance of DOCKER_HOST. If the variable is not present, it will fail with the following error message

Error: Running AWS SAM projects locally requires Docker. Have you got it installed and running?

Replace it with Colima

Point DOCKER_HOST to unix socket of the Docker Daemon. Colina creates it in the $HOME/.colima directory. Check the folder if the unix socket is present (docker.sock)

ls -la $HOME/.colima

Now set the environment variable (better add it to your shell config in .zshenv)

export DOCKER_HOST="unix://$HOME/.colima/docker.sock"

Source it in your shell

source ~/.zshenv

Now rebuild your sam project

sam build -u
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