From daef0cf448af17357b552245f39067a9d340ce3d Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Sun, 27 Apr 2025 21:15:30 -0700
Subject: Waow

---
 .../volumes/scripts/wait-for-postfix.unused.sh     | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 playbooks/roles/mail/templates/volumes/scripts/wait-for-postfix.unused.sh

(limited to 'playbooks/roles/mail/templates/volumes/scripts/wait-for-postfix.unused.sh')

diff --git a/playbooks/roles/mail/templates/volumes/scripts/wait-for-postfix.unused.sh b/playbooks/roles/mail/templates/volumes/scripts/wait-for-postfix.unused.sh
new file mode 100644
index 0000000..3e8a8c5
--- /dev/null
+++ b/playbooks/roles/mail/templates/volumes/scripts/wait-for-postfix.unused.sh
@@ -0,0 +1,27 @@
+# This was an attempt to keep rolling updates with very little downtime.
+# I don't think it's worth it, and the nature of update_config provides
+# little flexibility to use here.
+
+#!/bin/bash
+set -e
+
+function log() {
+  echo "[startup] $@"
+}
+
+LOCKFILE="/var/mail-state/lib-postfix/master.lock"
+MAX_TRIES=30
+TRY=0
+
+while [ -f "$LOCKFILE" ]; do
+  if [ "$TRY" -eq "$MAX_TRIES" ]; then
+    log "[$TRY/$MAX_TRIES] Max tries, failing."
+    exit 1
+  fi
+  log "[$TRY/$MAX_TRIES] Lockfile exists, waiting for it to be cleaned up by previous container..."
+  sleep 2
+  TRY=$((TRY + 1))
+done
+
+log "Lock check done. Starting DMS."
+supervisord -c /etc/supervisor/supervisord.conf
-- 
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