Remove the hardcoded concurrency limit of 2 from the golangci-lint
configuration to allow the linter to match the machine CPU's core count.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
The /grpc and /session endpoints are now deprecated as the Engine has
been upgraded to properly support HTTP/2 and h2c requests, making these
specialized endpoints unnecessary.
These endpoints will be removed in the next major API version to
complete the cleanup.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
When logging an unmarshal failure in the registry error handling code,
the function was incorrectly logging the uninitialized `derrs` variable
instead of the actual JSON unmarshal error `jerr`.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Add cleanup for the init layer directory if any operation fails after
driver.CreateReadWrite() succeeds in initMount(). Previously, failures
in driver.Get(), initFunc(), or driver.Put() would leave an orphaned
overlay2 directory.
Related to moby/moby#45939
Signed-off-by: Jan Scheffler <jan.scheffler@qodev.ai>
Add cleanup for the RW layer directory if saveMount() fails after
driver.CreateReadWrite() succeeds. Previously, this failure path would
leave an orphaned overlay2 directory with no corresponding metadata.
Related to moby/moby#45939
Signed-off-by: Jan Scheffler <jan.scheffler@qodev.ai>
Start the metadata transaction before creating the overlay2 directory.
This ensures that if driver.Create() fails, we can properly cancel the
transaction. Previously, if StartTransaction() failed after driver.Create()
succeeded, the defer cleanup would not run (not registered yet), leaving
an orphaned overlay2 directory.
The fix reorders operations so that:
1. Transaction is started first (no filesystem changes yet)
2. Overlay2 directory is created second (transaction ready for cleanup)
3. Defer is registered after both succeed (tx is guaranteed non-nil)
If driver.Create() fails, the transaction is explicitly cancelled before
returning. The nil check for tx in the defer is no longer needed since
tx is guaranteed to exist when the defer runs.
Related to moby/moby#45939
Signed-off-by: Jan Scheffler <jan.scheffler@qodev.ai>
Stopping the Engine while a container with autoremove set is running may
leave behind dead containers on disk. These containers aren't reclaimed
on next start, appear as "dead" in `docker ps -a` and can't be
inspected or removed by the user.
This bug has existed since a long time but became user visible with
9f5f4f5a42. Prior to that commit,
containers with no rwlayer weren't added to the in-memory viewdb, so
they weren't visible in `docker ps -a`. However, some dangling files
would still live on disk (e.g. folder in /var/lib/docker/containers,
mount points, etc).
The underlying issue is that when the daemon stops, it tries to stop all
running containers and then closes the containerd client. This leaves a
small window of time where the Engine might receive 'task stop' events
from containerd, and trigger autoremove. If the containerd client is
closed in parallel, the Engine is unable to complete the removal,
leaving the container in 'dead' state. In such case, the Engine logs the
following error:
cannot remove container "bcbc98b4f5c2b072eb3c4ca673fa1c222d2a8af00bf58eae0f37085b9724ea46": Canceled: grpc: the client connection is closing: context canceled
Solving the underlying issue would require complex changes to the
shutdown sequence. Moreover, the same issue could also happen if the
daemon crashes while it deletes a container. Thus, add a cleanup step
on daemon startup to remove these dead containers.
Signed-off-by: Albin Kerouanton <albin.kerouanton@docker.com>
Replace WithDialOpts with WithExtraDialOpts when creating containerd
clients to preserve the containerd client's default dial options while
adding our custom options.
Previously, using WithDialOpts would overwrite all of containerd's
default dial options, requiring us to sync them.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Fixes warning:
```
time="2025-11-06T11:22:30Z" level=warning msg="Template locator \"template://oraclelinux-8\" should be written \"template:oraclelinux-8\" since Lima v2.0"
```
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Add a `dev` target which adds a convenient developer loop which
rebuilds and reruns the daemon after a SIGINT is received.
It can be exited by sending SIGINT (Ctrl+C) a couple times.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
