- Closes#1526 and #1527.
## Type of Change
- [x] Bug fix
- [ ] New feature
- [ ] Breaking change
- [ ] Documentation update
## Motivation and Context
This PR fixes `system df` to report actual on-disk allocated bytes
(content blobs + snapshots) instead of summing per-image snapshot sizes.
Orphaned blobs are now included as reclaimable, and storage shared
across tags is no longer double counted. Also consolidates three
identical `calculateDirectorySize` implementations into a shared
`FileManager.allocatedSize(of:)` extension.
## Testing
- [x] Tested locally
- [x] Added/updated tests
- [ ] Added/updated docs
- Closes#1206.
- Closes#1185.
- Closes#507.
- Addresses existing log messages for #642.
- Nondeterministic CI errors are resulting from very slow launch times
for the first runtime helper, which causes ContainersService to be
locked for longer than our 20 sec timeout. Bumping the timeout to 60
seconds addresses this case for now.
- Since many log messages needed to be changed to troubleshoot the
issue, updated all log messages to use structured logging, and
implemented consistent entry/exit logging for all service operations.
- Added logging for ContainerService lock acquisition to help with
finding root cause for the slow service startup.
- Plumbed the `--debug` flag on both `container system start` and
`container system logs` so that the flag is actually useful.
- Updated the `install-init.sh` script so that can install in a custom
app root directory.