## Type of Change
- [x] New feature
## Description
Add option to force kernel setting and tests for CLI `kernel set`.
Related to https://github.com/apple/container/pull/575.
## Motivation and Context
This PR adds additional tests to ensure that we can set kernels from
local files, remote tar files, and local tar files. A new option `force`
is added to the `kernel set` subcommand which will overwrite an existing
kernel with the same name if one exists to make testing easier. The
tests ensure that a container can be started with the newly set kernel
and resets to the default recommended kernel when complete.
## Testing
- [x] Tested locally
- [x] Added/updated tests
Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
This change updates the UX when we install required dependencies at
first launch
### Fresh install - respond `y` to prompt
```
➜ bin/container system start
Verifying apiserver is running...
Installing base container filesystem...
No default kernel configured.
Install the recommended default kernel from [https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz]? [Y/n]: y
Installing kernel...
```
### Fresh install - respond `n` to prompt and then run the provided
command
```
➜ bin/container system start
Verifying apiserver is running...
Installing base container filesystem...
No default kernel configured.
Install the recommended default kernel from [https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz]? [Y/n]: n
Please use the `container system kernel set --recommended` command to configure the default kernel
➜ bin/container system kernel set --recommended
Installing the recommended kernel from https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz...
```
### Fresh install - respond `n` to prompt and then run a container
```
➜ bin/container system start
Verifying apiserver is running...
Installing base container filesystem...
No default kernel configured.
Install the recommended default kernel from [https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz]? [Y/n]: n
Please use the `container system kernel set --recommended` command to configure the default kernel
➜ bin/container run alpine uname
Error: notFound: "Default kernel not configured for architecture arm64. Please use the `container system kernel set` command to configure it
```
---------
Signed-off-by: Aditya Ramani <a_ramani@apple.com>
J Logan