Difference between revisions of "Buildah"
From John Freier
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List all images | List all images | ||
buildah images | buildah images | ||
+ | |||
+ | Build using a Dockerfile | ||
+ | buildah build-using-dockerfile --format docker --file Dockerfile --tag cs:latest | ||
Push image to a local file as oci format | Push image to a local file as oci format | ||
− | buildah push --format | + | -- Build in OCI format for running in Podman. |
+ | buildah push --format oci localhost/cs:latest oci-archive:/app/target/cs-oci.tar | ||
+ | |||
+ | -- Build in docker format and run in docker. | ||
+ | buildah push --format docker localhost/cs-docker:latest docker-archive:/app/target/cs-docker2.tar | ||
+ | |||
Latest revision as of 12:45, 6 April 2022
This tool is used to build images.
Build an image
buildah bud -t {image}:{tag}
List all images
buildah images
Build using a Dockerfile
buildah build-using-dockerfile --format docker --file Dockerfile --tag cs:latest
Push image to a local file as oci format
-- Build in OCI format for running in Podman. buildah push --format oci localhost/cs:latest oci-archive:/app/target/cs-oci.tar -- Build in docker format and run in docker. buildah push --format docker localhost/cs-docker:latest docker-archive:/app/target/cs-docker2.tar
To run buildah using docker
docker run -it \ --security-opt seccomp=unconfined \ --security-opt apparmor=unconfined \ --device /dev/fuse \ --entrypoint "/bin/bash" \ quay.io/buildah/stable
You need to have the following flags
--security-opt seccomp=unconfined --security-opt apparmor=unconfined --device /dev/fuse
seccomp - Docker restricts using unshare system call inside a containers.
apparmor - This flag is required.
/dev/fuse - This is needed to use the fuse-overlay program inside the container rather then using the host kernel overlay.