From 2a8a33d28267f84e947834c1374a5e413f6d760e Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Thu, 1 May 2025 23:10:56 -0700
Subject: Experiment with hooks.

---
 .../roles/src/templates/stacks/docker-compose.yml  |  9 +++---
 .../roles/src/templates/volumes/data/hooks/update  | 37 ++++++++++++++++++++++
 2 files changed, 41 insertions(+), 5 deletions(-)
 create mode 100755 playbooks/roles/src/templates/volumes/data/hooks/update

diff --git a/playbooks/roles/src/templates/stacks/docker-compose.yml b/playbooks/roles/src/templates/stacks/docker-compose.yml
index 344dfc5..46f253d 100644
--- a/playbooks/roles/src/templates/stacks/docker-compose.yml
+++ b/playbooks/roles/src/templates/stacks/docker-compose.yml
@@ -20,19 +20,18 @@ services:
     networks:
       - proxy
     healthcheck:
-      test: ["CMD-SHELL", "echo hi"] # todo: something more meaningful
+      test: ["CMD-SHELL", "netstat -tuln | grep 2222"]
       timeout: 15s
       interval: 30s
       retries: 3
-      start_period: 10s
+      start_period: 5s
     deploy:
       mode: replicated
       update_config:
         parallelism: 1
         failure_action: rollback
-        order: start-first
-        delay: 10s
-        monitor: 45s
+        order: stop-first
+        monitor: 10s
       replicas: 1
       labels:
         - traefik.enable=true
diff --git a/playbooks/roles/src/templates/volumes/data/hooks/update b/playbooks/roles/src/templates/volumes/data/hooks/update
new file mode 100755
index 0000000..a11d3e5
--- /dev/null
+++ b/playbooks/roles/src/templates/volumes/data/hooks/update
@@ -0,0 +1,37 @@
+#!/bin/sh
+#
+
+refname="$1"
+oldrev="$2"
+newrev="$3"
+
+# Safety check
+if [ -z "$GIT_DIR" ]; then
+        echo "Don't run this script from the command line." >&2
+        echo " (if you want, you could supply GIT_DIR then run" >&2
+        echo "  $0 <ref> <oldrev> <newrev>)" >&2
+        exit 1
+fi
+
+if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
+        echo "usage: $0 <ref> <oldrev> <newrev>" >&2
+        exit 1
+fi
+
+# Check types
+# if $newrev is 0000...0000, it's a commit to delete a ref.
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
+if [ "$newrev" = "$zero" ]; then
+        newrev_type=delete
+else
+        newrev_type=$(git cat-file -t $newrev)
+fi
+
+echo "Hi from Soft Serve update hook!"
+echo
+echo "RefName: $refname"
+echo "Change Type: $newrev_type"
+echo "Old SHA1: $oldrev"
+echo "New SHA1: $newrev"
+
+exit 0
-- 
cgit v1.2.3-70-g09d2