Add local/k8s reboot commands

This is to replace `tutor local stop && tutor local start`, which I type
way too frequently.

CHANGELOG.md

@@ -4,6 +4,7 @@ Note: Breaking changes between versions are indicated by "💥".
 
 ## Latest
 
+- [Improvement] Add ``local/k8s reboot`` commands
 - [Improvement] Add ``-U/--unset`` option to ``config save``
 - [Bugfix] Fix insecure static asset loading when web proxy is enabled
 - [Improvement] Rename ``SECRET_KEY`` configuration parameter to ``OPENEDX_SECRET_KEY``

tutor/commands/k8s.py

@@ -69,6 +69,13 @@ def stop(root):
     )
 
 
+@click.command(help="Reboot an existing platform")
+@opts.root
+def reboot(root):
+    stop.callback(root)
+    start.callback(root)
+
+
 def resource_selector(config, *selectors):
     """
     Convenient utility for filtering only the resources that belong to this project.
@@ -218,6 +225,7 @@ def wait_for_pod_ready(config, service):
 k8s.add_command(quickstart)
 k8s.add_command(start)
 k8s.add_command(stop)
+k8s.add_command(reboot)
 k8s.add_command(delete)
 k8s.add_command(init)
 k8s.add_command(createuser)

tutor/commands/local.py

@@ -90,9 +90,20 @@ def stop(root):
 
 
 @click.command(
-    help="""Restart some components from a running platform.
+    short_help="Reboot an existing platform",
-You may specify 'openedx' to restart the lms, cms and workers, or 'all' to
+    help="This is more than just a restart: with reboot, the platform is fully stopped before being restarted again",
-restart all services."""
+)
+@opts.root
+@click.option("-d", "--detach", is_flag=True, help="Start in daemon mode")
+def reboot(root, detach):
+    stop.callback(root)
+    start.callback(root, detach)
+
+
+@click.command(
+    short_help="Restart some components from a running platform.",
+    help="""Specify 'openedx' to restart the lms, cms and workers, or 'all' to
+restart all services. Note that this performs a 'docker-compose restart', so new images may not be taken into account. To fully stop the platform, use the 'reboot' command.""",
 )
 @opts.root
 @click.argument("service")
@@ -336,6 +347,7 @@ local.add_command(pullimages)
 local.add_command(start)
 local.add_command(stop)
 local.add_command(restart)
+local.add_command(reboot)
 local.add_command(run)
 local.add_command(execute, name="exec")
 local.add_command(init)