Commit 395ba05c44 implemented a POC to allow for changing the behavior
when loading multiple container.conf files in sequence. By default, the
TOML encoder will override existing data/fields with the one specified
in the loaded file. The POC has demonstrated how this behavior can be
changed to append string slices instead of overriding/replacing them
entirely.
This change is the first step of integrating these appendable string
arrays into containers.conf and starts with enabling the `Env`,
`Mounts`, and `Volumes` fields in the `[Containers]` table.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
To return absolute paths to modules a config was loaded with.
Knowing the modules is required for conmon's callback to
Podman's cleanup. Returning them as absolute paths makes
loading the modules a bit faster as it avoids the lookup.
Also drop the attempted performance tune in `Default()` to
accommodate for go's memory model.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Add a new concept to containers.conf called "modules". A "module" is
a containers.conf file located at a specific directory. More than one
module can be loaded in the specified order, following existing
override semantics.
There are three directories to load modules from:
- $CONFIG_HOME/containers/containers.conf.modules
- /etc/containers/containers.conf.modules
- /usr/share/containers/containers.conf.modules
With CONFIG_HOME pointing to $HOME/.config or, if set, $XDG_CONFIG_HOME.
Absolute paths will be loaded as is, relative paths will be resolved
relative to the three directories above allowing for admin configs
(/etc/) to override system configs (/usr/share/) and user configs
($CONFIG_HOME) to override admin configs.
Also move some functions from config.go for locality.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Valentin Rothberg