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15.0 > System > buildah (1.5)

buildah is a (daemon-free) container build utility

The Buildah package provides a command line tool that can be used to

* create a working container, either from scratch or using an image as a
  starting point
* create an image, either from a working container or via the
  instructions in a Dockerfile
* images can be built in either the OCI image format or the traditional
  upstream docker image format
* mount a working container's root filesystem for manipulation
* unmount a working container's root filesystem
* use the updated contents of a container's root filesystem as a
  filesystem layer to create a new image
* delete a working container or an image
* rename a local container

For examples, see:
* https://github.com/containers/buildah or /usr/doc/buildah-*/README.md
* man pages

non-root usage:

plenty of kernel recent kernel's support the user-namespace sub
uid/gid mapping. Only recent versions of shadow-utils will append a
new mapping for users when they are created. You may have to add a
mapping for your user like so:

```shell
echo "$YOURUSER:100000:65536" > /etc/subuid
echo "$YOURGROUP:100000:65536" > /etc/subgid
```

if you have more than one non-root user to add a mapping for,
then their start number (like `100000` above) would begin after
100000+65536.

This requires: go-md2man, runc

Maintained by: Vincent Batts
Keywords: container,build,image,Dockerfile
ChangeLog: buildah