Authoritative dns server for A/AAAA container records. Forwards other request to host's /etc/resolv.conf

Buildah provides a command line tool which 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
- Build images 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
- Update the contents of a container's root filesystem
- Delete a working container or an image

Conmon is a monitoring program and communication tool between a
container manager (like podman or CRI-O) and an OCI runtime (like
runc or crun) for a single container.

A user-mode networking library used by virtual machines,
containers or various tools.

Container network stack for Podman

podman is a simple client only tool to help with debugging issues when daemons such as CRI runtime and the kubelet are not responding or failing. A shared API layer could be created to share code between the daemon and podman. podman does not require any daemon running. podman utilizes the same underlying components that crio uses i.e. containers/image, container/storage, oci-runtime-tool/generate, runc or any other OCI compatible runtime. podman shares state with crio and so has the capability to debug pods/images created by crio.

slirp4netns provides user-mode networking ("slirp") for unprivileged network namespaces. A common use-case of slirp4netns is to enable network access for rootless container engines such as CRI-O and Podman.