Closes#824
This implements statistics gathering across the various components, but
ultimately this is for implementing a new CLI command: `container
stats`. This shows memory usage, cpu usage, network and block i/o and
the number of processes in the container. The new command can inspect
stats for 1-N containers and by default continuously updates in a `top`
like stream.
## Type of Change
- [ ] Bug fix
- [x] New feature
- [ ] Breaking change
- [ ] Documentation update
## Testing
- [x] Tested locally
- [x] Added/updated tests
- [x] Added/updated docs
Fixes#772
Today it fails in bootstrap the second go around, and we also have an
error handler that automatically cleans up the container if bootstrap
failed which is even worse. This change short circuits us first in the
cli if the state is running when we get() the container, and also adds
in a clause to bootstrap to just early return if we already have a
client.
- Makes ProcessIO more generally available.
- `Application.handleProcess(processIO:process:)` becomes
`processIO.handleProcess(process:log:)`.
## Motivation and Context
This code shouldn't be in the CLI, it should be part of ContainerClient.
- Part of #515.
- Add titles to option groups for container subcommands.
- Order option groups and container subcommand options alphabetically.
- Use `container-id` and `container-ids` consistently as argument names.
- Shorten long valueNames to avoid option column overflow in help output
where possible.
- Replace customShort and customLong with short, long, and shortAndLong
where possible.
- Always place global options and arguments after alphabetized
command-specific options.
- Rename RunCommand to ContainerRun and relocate it.
- Rename Executable to ContainerCLI.
## Type of Change
- [ ] Bug fix
- [ ] New feature
- [x] Breaking change (if you're depending on `RunCommand`, renamed).
- [ ] Documentation update
## Motivation and Context
See #385.
## Testing
- [ ] Tested locally
- [ ] Added/updated tests
- [ ] Added/updated docs
Danny Canter