This PR will allow for any toml files added into `/var/cri/conf.d` to be
picked up and parsed as a containerd config. This should allow users a
nice way to add additional configs by passing extra files in machine
config like:
```
machine:
...
files:
- content: |
[metrics]
address = "0.0.0.0:11234"
path: /var/cri/conf.d/metrics.toml
op: create
```
Will close#1718.
Signed-off-by: Spencer Smith <robertspencersmith@gmail.com>
This adds `create` and `overwrite` file operations so that we can have
better sanity checks around extra files.
Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
