The journald reader test harness injects an artificial asynchronous
delay into the logging pipeline: a logged message won't be written to
the journal until at least 150ms after the Log() call returns. If a test
returns while log messages are still in flight to be written, the logs
may attempt to be written after the TempDir has been cleaned up, leading
to spurious errors.
The logger read tests which interleave writing and reading have to
include explicit synchronization points to work reliably with this delay
in place. On the other hand, tests should not be required to sync the
logger explicitly before returning. Override the Close() method in the
test harness wrapper to wait for in-flight logs to be flushed to disk.
Signed-off-by: Cory Snider <csnider@mirantis.com>
- Check the return value when logging messages
- Log the stream (stdout/stderr) and list of messages that were not read
- Wait until the logger is closed before returning early (panic/fatal)
Signed-off-by: Cory Snider <csnider@mirantis.com>
Writing the systemd-journal-remote command output directly to os.Stdout
and os.Stderr makes it nearly impossible to tell which test case the
output is related to when the tests are not run in verbose mode. Extend
the journald sender fake to redirect output to the test log so they
interleave with the rest of the test output.
Signed-off-by: Cory Snider <csnider@mirantis.com>
The Go race detector was detecting a data race when running the
TestLogRead/Follow/Concurrent test against the journald logging driver.
The race was in the test harness, specifically syncLogger. The waitOn
field would be reassigned each time a log entry is sent to the journal,
which is not concurrency-safe. Make it concurrency-safe using the same
patterns that are used in the log follower implementation to synchronize
with the logger.
Signed-off-by: Cory Snider <csnider@mirantis.com>
When saving an image treat `image@sha256:abcdef...` the same as
`abcdef...`, this makes it:
- Not export the digested tag as the image name
- Not try to export all tags from the image repository
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
errDrainDone is a sentinel error which is never supposed to escape the
package. Consequently, it needs to be filtered out of returns all over
the place, adding boilerplate. Forgetting to filter out these errors
would be a logic bug which the compiler would not help us catch. Replace
it with boolean multi-valued returns as they can't be accidentally
ignored or propagated.
Signed-off-by: Cory Snider <csnider@mirantis.com>
While it doesn't really matter if the reader waits for an extra
arbitrary period beyond an arbitrary hardcoded timeout, it's also
trivial and cheap to implement, and nice to have.
Signed-off-by: Cory Snider <csnider@mirantis.com>
The journald reader uses a timer to set an upper bound on how long to
wait for the final log message of a stopped container. However, the
timer channel is only received from in non-blocking select statements!
There isn't enough benefit of using a timer to offset the cost of having
to manage the timer resource. Setting a deadline and comparing the
current time is just as effective, without having to manage the
lifecycle of any runtime resources.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Synthesize a boot ID for journal entries fed into
systemd-journal-remote, as required by systemd 255.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Following logs with a non-negative tail when the container log is empty
is broken on the journald driver when used with systemd 255. Add tests
which cover this edge case to our loggertest suite.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Store additional image property which makes it possible to distinguish
if image was built locally.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
This is a follow-up to 2cf230951f, adding
more directives to adjust for some new code added since:
Before this patch:
make -C ./internal/gocompat/
GO111MODULE=off go generate .
GO111MODULE=on go mod tidy
GO111MODULE=on go test -v
# github.com/docker/docker/internal/sliceutil
internal/sliceutil/sliceutil.go:3:12: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
internal/sliceutil/sliceutil.go:3:14: predeclared comparable requires go1.18 or later (-lang was set to go1.16; check go.mod)
internal/sliceutil/sliceutil.go:4:19: invalid map key type T (missing comparable constraint)
# github.com/docker/docker/libnetwork
libnetwork/endpoint.go:252:17: implicit function instantiation requires go1.18 or later (-lang was set to go1.16; check go.mod)
# github.com/docker/docker/daemon
daemon/container_operations.go:682:9: implicit function instantiation requires go1.18 or later (-lang was set to go1.16; check go.mod)
daemon/inspect.go:42:18: implicit function instantiation requires go1.18 or later (-lang was set to go1.16; check go.mod)
With this patch:
make -C ./internal/gocompat/
GO111MODULE=off go generate .
GO111MODULE=on go mod tidy
GO111MODULE=on go test -v
=== RUN TestModuleCompatibllity
main_test.go:321: all packages have the correct go version specified through //go:build
--- PASS: TestModuleCompatibllity (0.00s)
PASS
ok gocompat 0.031s
make: Leaving directory '/go/src/github.com/docker/docker/internal/gocompat'
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
We need to isolate the images that we are remapping to a userns, we
can't mix them with "normal" images. In the graph driver case this means
we create a new root directory where we store the images and everything
else, in the containerd case we can use a new namespace.
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
To prevent a circular import between api/types and api/types image,
the RequestPrivilegeFunc reference was not moved, but defined as
part of the PullOptions / PushOptions.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Commit 8b7af1d0f added some code to update the DNSNames of all
endpoints attached to a sandbox by loading a new instance of each
affected endpoints from the datastore through a call to
`Network.EndpointByID()`.
This method then calls `Network.getEndpointFromStore()`, that in
turn calls `store.GetObject()`, which then calls `cache.get()`,
which calls `o.CopyTo(kvObject)`. This effectively creates a fresh
new instance of an Endpoint. However, endpoints are already kept in
memory by Sandbox, meaning we now have two in-memory instances of
the same Endpoint.
As it turns out, libnetwork is built around the idea that no two objects
representing the same thing should leave in-memory, otherwise breaking
mutex locking and optimistic locking (as both instances will have a drifting
version tracking ID -- dbIndex in libnetwork parliance).
In this specific case, this bug materializes by container rename failing
when applied a second time for a given container. An integration test is
added to make sure this won't happen again.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
Prior to 7a9b680a, the container short ID was added to the network
aliases only for custom networks. However, this logic wasn't preserved
in 6a2542d and now the cid is always added to the list of network
aliases.
This commit reintroduces the old logic.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
Commit 21e50b89c9 added a label on the buildkit
worker to advertise the host-gateway-ip. This option can be either set by the
user in the daemon config, or otherwise defaults to the gateway-ip.
If no value is set by the user, discovery of the gateway-ip happens when
initializing the network-controller (`NewDaemon`, `daemon.restore()`).
However d222bf097c changed how we handle the
daemon config. As a result, the `cli.Config` used when initializing the
builder only holds configuration information form the daemon config
(user-specified or defaults), but is not updated with information set
by `NewDaemon`.
This patch adds an accessor on the daemon to get the current daemon config.
An alternative could be to return the config by `NewDaemon` (which should
likely be a _copy_ of the config).
Before this patch:
docker buildx inspect default
Name: default
Driver: docker
Nodes:
Name: default
Endpoint: default
Status: running
Buildkit: v0.12.4+3b6880d2a00f
Platforms: linux/arm64, linux/amd64, linux/amd64/v2, linux/riscv64, linux/ppc64le, linux/s390x, linux/386, linux/mips64le, linux/mips64, linux/arm/v7, linux/arm/v6
Labels:
org.mobyproject.buildkit.worker.moby.host-gateway-ip: <nil>
After this patch:
docker buildx inspect default
Name: default
Driver: docker
Nodes:
Name: default
Endpoint: default
Status: running
Buildkit: v0.12.4+3b6880d2a00f
Platforms: linux/arm64, linux/amd64, linux/amd64/v2, linux/riscv64, linux/ppc64le, linux/s390x, linux/386, linux/mips64le, linux/mips64, linux/arm/v7, linux/arm/v6
Labels:
org.mobyproject.buildkit.worker.moby.host-gateway-ip: 172.18.0.1
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The `GetImageOpts` struct is used for options to be passed to the backend,
and are not used in client code. This struct currently is intended for internal
use only.
This patch moves the `GetImageOpts` struct to the backend package to prevent
it being imported in the client, and to make it more clear that this is part
of internal APIs, and not public-facing.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The MAC address of a running container was stored in the same place as
the configured address for a container.
When starting a stopped container, a generated address was treated as a
configured address. If that generated address (based on an IPAM-assigned
IP address) had been reused, the containers ended up with duplicate MAC
addresses.
So, remember whether the MAC address was explicitly configured, and
clear it if not.
Signed-off-by: Rob Murray <rob.murray@docker.com>
With containerd snapshotters enabled `docker run` currently fails when
creating a container from an image that doesn't have the default host
platform without an explicit `--platform` selection:
```
$ docker run image:amd64
Unable to find image 'asdf:amd64' locally
docker: Error response from daemon: pull access denied for asdf, repository does not exist or may require 'docker login'.
See 'docker run --help'.
```
This is confusing and the graphdriver behavior is much better here,
because it runs whatever platform the image has, but prints a warning:
```
$ docker run image:amd64
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
```
This commits changes the containerd snapshotter behavior to be the same
as the graphdriver. This doesn't affect container creation when platform
is specified explicitly.
```
$ docker run --rm --platform linux/arm64 asdf:amd64
Unable to find image 'asdf:amd64' locally
docker: Error response from daemon: pull access denied for asdf, repository does not exist or may require 'docker login'.
See 'docker run --help'.
```
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Since v25.0 (commit ff50388), we validate endpoint settings when
containers are created, instead of doing so when containers are started.
However, a container created prior to that release would still trigger
validation error at start-time. In such case, the API returns a 500
status code because the Go error isn't wrapped into an InvalidParameter
error. This is now fixed.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
This matcher was only used internally in the containerd implementation of
the image store. Un-export it, and make it a local utility in that package
to prevent external use.
This package was introduced in 1616a09b61
(v24.0), and there are no known external consumers of this package, so there
should be no need to deprecate / alias the old location.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This flag was marked deprecated in commit 5a922dc16 (released in v24.0)
and to be removed in the next release.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
`VolumeOptions` now has a `Subpath` field which allows to specify a path
relative to the volume that should be mounted as a destination.
Symlinks are supported, but they cannot escape the base volume
directory.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
We constructed a "function level" logger, which was used once "as-is", but
also added additional Fields in a loop (for each resource), effectively
overwriting the previous one for each iteration. Adding additional
fields can result in some overhead, so let's construct a "logger" only for
inside the loop.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
We have many "image" packages, so these vars easily conflict/shadow
imports. Let's rename them (and in some cases use a const) to
prevent that.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
All commonly used filesystems should use ref-counted mounter, so make it
the default instead of having to whitelist them.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Prior to this commit, a container running with `--net=host` had
`{"type":"network","path":"/var/run/docker/netns/default"}` in
the ``.linux.namespaces` field of the OCI Runtime Config,
but this wasn't needed.
Close issue 47100
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
The actual divergence is due to differences in the snapshotter and
graphfilter mount behaviour on Windows, but the snapshotter behaviour is
better, so we deal with it here rather than changing the snapshotter
behaviour.
We're relying on the internals of containerd's Windows mount
implementation here. Unless this code flow is replaced, future work is
to move getBackingDeviceForContainerdMount into containerd's mount
implementation.
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
The existing API ImageService.GetLayerFolders didn't have access to the
ID of the container, and once we have that, the snapshotter Mounts API
provides all the information we need here.
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Needed for Diff on Windows. Don't remount it afterwards as the layer is
going to be released anyway.
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
