Supporting adjust volume size & pre-update backups.

all-apps/instance-control/hooks/hooks.json.tmpl

@@ -20,6 +20,27 @@
             },
         "execute-command": "/etc/webhook/queue-restic-snapshot.sh"
     },
+    {
+        "id": "queue-restic-snapshot-no-restart",
+        "pass-environment-to-command": [
+            {"source": "payload", "name": "version"},
+            {"source": "payload", "name": "path"},
+            {"source": "payload", "name": "tag"},
+            {"source": "payload", "name": "request_id"}
+        ],
+        "trigger-rule":
+            {
+                "match": {
+                    "type": "payload-hmac-sha256",
+                    "secret": "$INSTANCE_CONTROL_WEBHOOKS_SECRET",
+                    "parameter": {
+                        "source": "header",
+                        "name": "X-Nassella-Signature"
+                    }
+                }
+            },
+        "execute-command": "/etc/webhook/queue-restic-snapshot-no-restart.sh"
+    },
     {
         "id": "restic-snapshot-status",
         "include-command-output-in-response": true,

all-apps/instance-control/hooks/queue-restic-snapshot-no-restart.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# TODO the systemd unit should actually do this
+# touch /maintenance/maintenance.on
+# rm /maintenance/maintenance.on
+
+# for instance-control docker compose setup:
+# make a directory in /tmp for these pipes and mount that as a volume
+# into the container
+
+# TODO read 'version' arg from request and make sure it
+# matches the version of this script
+
+# use a named pipe
+printf "%s\t%s\t%s\t%s\n" "$HOOK_tag" "$HOOK_request_id" "$HOOK_path" "false" > /tmp/restic/snapshot_trigger_pipe

all-apps/instance-control/hooks/queue-restic-snapshot.sh

@@ -12,4 +12,4 @@
 # matches the version of this script
 
 # use a named pipe
-printf "%s\t%s\t%s\n" "$HOOK_tag" "$HOOK_request_id" "$HOOK_path" > /tmp/restic/snapshot_trigger_pipe
+printf "%s\t%s\t%s\t%s\n" "$HOOK_tag" "$HOOK_request_id" "$HOOK_path" "true" > /tmp/restic/snapshot_trigger_pipe