Copyright © 2022 Oleg Pykhalov <go.wigust@gmail.com>

Create a PID file after containerd is ready to serve requests.

Fixes <https://issues.guix.gnu.org/38432>.

--- a/cmd/containerd/command/notify_linux.go	1970-01-01 03:00:01.000000000 +0300
+++ b/cmd/containerd/command/notify_linux.go	2022-07-02 04:42:35.553753495 +0300
@@ -22,15 +22,22 @@
 	sd "github.com/coreos/go-systemd/v22/daemon"
 
 	"github.com/containerd/containerd/log"
+
+	"os"
+	"strconv"
 )
 
 // notifyReady notifies systemd that the daemon is ready to serve requests
 func notifyReady(ctx context.Context) error {
+	pidFile, _ := os.Create("/run/containerd/containerd.pid")
+	defer pidFile.Close()
+	pidFile.WriteString(strconv.FormatInt(int64(os.Getpid()), 10))
 	return sdNotify(ctx, sd.SdNotifyReady)
 }
 
 // notifyStopping notifies systemd that the daemon is about to be stopped
 func notifyStopping(ctx context.Context) error {
+	os.Remove("/run/containerd/containerd.pid")
 	return sdNotify(ctx, sd.SdNotifyStopping)
 }
 
ss='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=e6403a56716c6fc150e001f93419077afdda1b76'>refs</a><a class='active' href='/guix/log/gnu/installer/dump.scm'>log</a><a href='/guix/tree/gnu/installer/dump.scm?id=e6403a56716c6fc150e001f93419077afdda1b76'>tree</a><a href='/guix/commit/gnu/installer/dump.scm?id=e6403a56716c6fc150e001f93419077afdda1b76'>commit</a><a href='/guix/diff/gnu/installer/dump.scm?id=e6403a56716c6fc150e001f93419077afdda1b76'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/installer/dump.scm'>
<input type='hidden' name='id' value='e6403a56716c6fc150e001f93419077afdda1b76'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=e6403a56716c6fc150e001f93419077afdda1b76'>root</a>/<a href='/guix/log/gnu?id=e6403a56716c6fc150e001f93419077afdda1b76'>gnu</a>/<a href='/guix/log/gnu/installer?id=e6403a56716c6fc150e001f93419077afdda1b76'>installer</a>/<a href='/guix/log/gnu/installer/dump.scm?id=e6403a56716c6fc150e001f93419077afdda1b76'>dump.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/installer/dump.scm?id=e6403a56716c6fc150e001f93419077afdda1b76&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-11-02 15:52:19 +0100'>2022-11-02</span></td><td><a href='/guix/commit/gnu/installer/dump.scm?id=80387bc7c3966602800116f5be3893c3d3044a96'>installer: Add core dump support.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes: &lt;https://issues.guix.gnu.org/58733&gt;

* gnu/installer.scm (installer-program): Enable core dump generation.
* gnu/installer/dump.scm (%core-dump): New variable.
(prepare-dump): Copy the core dump file.
* gnu/installer/newt/welcome.scm (run-welcome-page): Propose to report an
installation that previously generated a core dump.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-02-02 16:46:44 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/dump.scm?id=ad55ccf9b18000144a4e0f28a0f9e57132f94edc'>installer: Make dump archive creation optional and selective.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer.scm (installer-program): Let the installer customize
the dump archive.
* gnu/installer/dump.scm (prepare-dump, make-dump): Split make-dump in
prepare-dump, which copies the files necessary for the dump, and
make-dump which creates the archive.
* gnu/installer/record.scm (installer): Add report-page field.  Change
documented return value of exit-error.
* gnu/installer/newt.scm (exit-error): Change arguments to be a string
containing the error.  Let the user choose between exiting and
initiating a dump.
(report-page): Add new variable.
* gnu/installer/newt/page.scm (run-dump-page): New variable.
* gnu/installer/newt/dump.scm: Delete it.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2022-02-02 16:46:42 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/dump.scm?id=0d37a5df7e709cadca97cfbbf9c680dfe54b8302'>installer: Add crash dump upload support.</a><span class='msg-avail'>...<span class='msg-tooltip'>Suggested-by: Josselin Poiret &lt;dev@jpoiret.xyz&gt;

* gnu/installer/dump.scm: New file.
* gnu/installer/newt/dump.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add them.
* gnu/installer/record.scm (&lt;installer&gt;)[dump-page]: New field.
* gnu/installer/steps.scm (%current-result): New variable.
(run-installer-steps): Update it.
* gnu/installer.scm (installer-program): Add tar and gip to the installer
path. Add guile-webutils and gnutls to the Guile extensions. Generate and send
the crash dump report.
* gnu/installer/newt.scm (exit-error): Add a report argument. Display the
report id.
(dump-page): New procedure.
(newt-installer): Update it.
</span></span></td><td>Mathieu Othacehe</td></tr>