This patch adds a new CLI command 'container upgrade foo', where 'foo'
is the name of the container. If more than one container use the same
image, multiple upgrades must be done because a container runs not on
the 'image:tag' but on the hash of the 'image:tag' it was created from.
Rename "done" queue to "active", since we want to recreate an active
container after fetching an updated base image.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch allows containers created with "podman create" to surivce
rebots, and even reconfigurations at runtime, as long as their config
has not changed. Allowing some level of persistence in the writable
layer given to containers.
For even more persistency, support for volumes (they sync with dir in
container on first use) and mounts (creates empty writable dirs in the
container) must be added. A third option, a variant of mounts, is to
allow a leaf-list "file", where binary content can be added and then
mounted into the container, e.g.
/run/containers/files/$name/file.ext -> container://$name/etc/file.ext
None of this is available yet, but seems likely we need to add in the
very near term.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg