Change the log-level for messages about starting the managed containerd instance
to be the same as for the main API. And remove a redundant debug-log.
With this patch:
dockerd
INFO[2022-08-11T11:46:32.573299176Z] Starting up
INFO[2022-08-11T11:46:32.574304409Z] containerd not running, starting managed containerd
INFO[2022-08-11T11:46:32.575289181Z] started new containerd process address=/var/run/docker/containerd/containerd.sock module=libcontainerd pid=5370
cmd/dockerd: initContainerD(): clean-up some logs
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
the `--log-level` flag overrides whatever is in the containerd configuration file;
f033f6ff85/cmd/containerd/command/main.go (L339-L352)
Given that we set that flag when we start the containerd binary, there is no need
to write it both to the generated config-file and pass it as flag.
This patch also slightly changes the behavior; as both dockerd and containerd use
"info" as default log-level, don't set the log-level if it's the default.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Containerd, like dockerd has a OOMScore configuration option to adjust its own
OOM score. In dockerd, this option was added when default installations were not
yet running the daemon as a systemd unit, which made it more complicated to set
the score, and adding a daemon option was convenient.
A binary adjusting its own score has been frowned upon, as it's more logical to
make that the responsibility of the process manager _starting_ the daemon, which
is what we did for dockerd in 21578530d7.
There have been discussions on deprecating the daemon flag for dockerd, and
similar discussions have been happening for containerd.
This patch changes how we set the OOM score for the containerd child process,
and to have dockerd (supervisor) set the OOM score, as it's acting as process
manager in this case (performing a role similar to systemd otherwise).
With this patch, the score is still adjusted as usual, but not written to the
containerd configuration file;
dockerd --oom-score-adjust=-123
cat /proc/$(pidof containerd)/oom_score_adj
-123
As a follow-up, we may consider to adjust the containerd OOM score based on the
daemon's own score instead of on the `cli.OOMScoreAdjust` configuration so that
we will also adjust the score in situations where dockerd's OOM score was set
through other ways (systemd or manually adjusting the cgroup). A TODO was added
for this.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The existing implementation used a `nil` value for the CRI plugin's configuration
to indicate that the plugin had to be disabled. Effectively, the `Plugins` value
was only used as an intermediate step, only to be removed later on, and to instead
add the given plugin to `DisabledPlugins` in the containerd configuration.
This patch removes the intermediate step; as a result we also don't need to mask
the containerd `Plugins` field, which was added to allow serializing the toml.
A code comment was added as well to explain why we're (currently) disabling the
CRI plugin by default, which may help future visitors of the code to determin
if that default is still needed.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Initial pull/ls works
Build is deactivated if the feature is active
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Older versions of Go don't format comments, so committing this as
a separate commit, so that we can already make these changes before
we upgrade to Go 1.19.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Set the defaults when constructing the config, instead of setting them
indirectly through the command-line flags.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This function depends on flags having been parsed before it's used;
add a safety-net in case this function would be called before that.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This prevents creating a socket and touching the filesystem before
trying to use a port that was already in use by a container.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The LoopkupImage method is only used by the inspect image route and
returns an api/type struct. The depenency to api/types of the
daemon/images package is wrong, the daemon doesn't need to know about
the api types.
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Use the default (0) value to indicate "not set", which simplifies
working with these configuration options, preventing the need to
use intermediate variables etc.
While changing this code, also making some small cleanups, such
as replacing "fmt.Sprintf()" for "strconv" variants.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
spf13/pflag now provides this out of the box, so no need to implement
and use our own value-type for this.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This file was originally part of the work to support Solaris, and
there's nothing "not common unix" anymmore, so merging the files.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
installConfigFlags already has separate implementations for Linux and
Windows, so no need to further differentiate.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The installCommonConfigFlags() function is meant for flags that are
supported by all platforms, so removing it from that function.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously, the API server configuration would be initialized and
validated when starting the API. Because of this, invalid configuration
(e.g. missing or invalid TLS certificates) would not be detected
when using `dockerd --validate`.
This patch moves creation of the validation earlier, so that it's
validated as part of `dockerd --validate`.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously, hosts were de-duplicated and normalized when starting
the API server (in `loadListeners()`), which meant that errors could
occur in that step (but not detected when using `dockerd --validate`),
as well as the list of hosts in the config not matching what would
actually be used (i.e., if duplicates were present).
This patch extracts the de-duplicating to a separate function, and
executes it as part of loading the daemon configuration, so that we
can fail early.
Moving this code also showed that some of this validation depended
on `newAPIServerConfig()` modifying the configuration (adding an
empty host if none was set) in order to have the parsing set a
default. This code was moved elsewhere, but a TODO comment added
as this logic is somewhat sketchy.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- un-export `daemonOptions.InstallFlags()`; `daemonOptions` itself isn't exported,
not exported, and `InstallFlags()` isn't matching any interface and only used
internally.
- un-export `daemonOptions.SetDefaultOptions()` and remove the `flags` argument
as we were passing `daemonOptions.flags` as argument on a method attached to
`daemonOptions`, which was somewhat backwards. While at it, also removing an
intermediate variable that wasn't needed.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Log-level validation was previously performed when configuring the daemon-logs;
this moves the validation to config.Validate() so that we can catch invalid
settings when running dockerd --validate.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This was introduced in 85572cac14, where I
probably forgot to remove this code from an earlier iteration (I decided
that having an explicit `configureCertsDir()` function call for this would
make it more transparent that we're re-configuring a default).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The Logging boolean was unconditionally set to true and ignored in all locations,
except for enabling the debugging middleware, which was also gated by the active
logrus logging level.
While it could make sense to have a Loglevel option configured on the API server,
we don't have this currently, and to make that actually useful, that config would
need to be tollerated by all locations that produce logs (which isn't the case
either).
Looking at the history of this option; a boolean to disable logging was originally
added in commit c423a790d6, which hard-coded it to
"disabled" in a test, and "enabled" for the API server outside of tests (before
that commit, logging was always enabled).
02ddaad5d9 and 5c42b2b512
changed the hard-coded values to be configurable through a `Logging` env-var (env-
vars were used _internally_ at the time to pass on options), which later became
a configuration struct in a0bf80fe03.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This feature requires experimental mode to be enabled, so mentioning that
in the flag description.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The registry package contained code to automatically set the CertsDir() path,
based on wether or not the daemon was running in rootlessmode. In doing so,
it made use of the `pkg/rootless.RunningWithRootlessKit()` utility.
A recent change in de6732a403 added additional
functionality in the `pkg/rootless` package, introducing a dependency on
`github.com/rootless-containers/rootlesskit`. Unfortunately, the extra
dependency also made its way into the docker cli, which also uses the
registry package.
This patch introduces a new `SetCertsDir()` function, which allows
the default certs-directory to be overridden, and updates the daemon
to configure this location during startup.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This removes the plugin section from the containerd configuration file
(`/var/run/docker/containerd/containerd.toml`) that is generated when
starting containerd as child process;
```toml
[plugins]
[plugins.linux]
shim = "containerd-shim"
runtime = "runc"
runtime_root = "/var/lib/docker/runc"
no_shim = false
shim_debug = true
```
This configuration doesn't appear to be used since commit:
0b14c2b67a, which switched the default runtime
to to io.containerd.runc.v2.
Note that containerd itself uses `containerd-shim` and `runc` as default
for `shim` and `runtime` v1, so omitting that configuration doesn't seem
to make a difference.
I'm slightly confused if any of the other options in this configuration were
actually used: for example, even though `runtime_root` was configured to be
`/var/lib/docker/runc`, when starting a container with that coniguration set
on docker 19.03, `/var/lib/docker/runc` doesn't appear to exist:
```console
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
098baa4cb0e7 nginx:alpine "/docker-entrypoint.…" 59 minutes ago Up 59 minutes 80/tcp foo
$ ls /var/lib/docker/runc
ls: /var/lib/docker/runc: No such file or directory
$ ps auxf
PID USER TIME COMMAND
1 root 0:00 sh
16 root 0:11 dockerd --debug
26 root 0:09 containerd --config /var/run/docker/containerd/containerd.toml --log-level debug
234 root 0:00 containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/09
251 root 0:00 nginx: master process nginx -g daemon off;
304 101 0:00 nginx: worker process
...
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Perform the validation when the daemon starts instead of performing these
validations for each individual container, so that we can fail early.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Windows Server 2016 (RS1) reached end of support, and Docker Desktop requires
Windows 10 V19H2 (version 1909, build 18363) as a minimum.
This patch makes Windows Server RS5 / ltsc2019 (build 17763) the minimum version
to run the daemon, and removes some hacks for older versions of Windows.
There is one check remaining that checks for Windows RS3 for a workaround
on older versions, but recent changes in Windows seemed to have regressed
on the same issue, so I kept that code for now to check if we may need that
workaround (again);
085c6a98d5/daemon/graphdriver/windows/windows.go (L319-L341)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This was originally added to solve a CLI usability issue related to `docker-machine` and `docker` (explicitly *not* `dockerd`) -- the "docker/cli" repository has a separate copy of this entire `opts` package, so isn't even using this implementation.
Signed-off-by: Tianon Gravi <admwiggin@gmail.com>
