See https://github.com/containers/podman/pull/16141, shipped in
Podman 4.4.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

One check moved from networking_linux.go to networking_common.go.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

...instead of PATH. This seems to be the only change needed in
existing pasta integrations after patch:

  Use explicit --netns option rather than multiplexing with PID

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

Trivial conflicts in man pages only.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

Given that a three-way git merge was enough to cope with context
changes in man pages, it's probably a good idea to enable that for
'git am' in the demo too.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

A few trivial conflicts came up. No semantic changes.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

Rebase the patch for Podman on top of current upstream, and:

- add support for configuration of specific addresses for forwarded
  ports

- by default, disable port forwarding, and reflect this in the man
  page changes

- adjust processing to a new, incompatible format for port storage,
  which I couldn't actually track down to a specific commit, but
  that resulted in https://github.com/containers/podman/issues/13643
  and commit eedaaf33cdbf ("fix slirp4netns port forwarding with
  ranges")

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

The patch introduces a "pasta" networking mode for rootless
container, similar to the existing slirp4netns mode. Notable
differences are described in the commit message.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>