| Status | stable |
| OCI Reference | cgr.dev/chainguard/ko |
| Variants/Tags |  |
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This is an image that contains ko, go, and build-base.
This image is designed for use in situations where you would like to use ko with codebases that have C dependencies where cgo must be used. In these cases, staticly linking against musl instead of glibc results in smaller binaries.
The image is available on cgr.dev:
docker pull cgr.dev/chainguard/ko:latest
Navigate to the example/ directory:
cd example/
Then run:
docker run --rm -it \
-v ${PWD}:/work \
--workdir=/work \
-e KO_DOCKER_REPO=example.com \
-e CGO_ENABLED=1 \
cgr.dev/chainguard/ko build ./ \
--push=false \
--preserve-import-paths
This will build the example program, but not push it, due to --push=false.
To push, you will need to mount in your Docker config to provide auth by adding:
-v $DOCKER_CONFIG:/docker-config \
-e DOCKER_CONFIG=/docker-config \
If you're using Docker credential helpers, those will need to be made available in the container as well so that ko can invoke them.