Corrected many things after actual deployment

service_data/cert_sync/sync-certs.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+if [ ! -d /caddy-data ] || [ ! -d /stalwart-certs ]; then
+	echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] FATAL: Required volume mounts (/caddy-data or /stalwart-certs) are missing!" >&2
+	exit 1
+fi
+
+echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] Certificate sync container initialized. Checking every 12 hours..."
+
+while true; do
+	if [ -d /caddy-data/caddy/certificates ] && [ "$(ls -A /caddy-data/caddy/certificates 2>/dev/null)" ]; then
+		echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] Syncing Caddy certificates to Stalwart..."
+
+		cp -a /caddy-data/caddy/certificates/. /stalwart-certs/
+
+		chown -R 2000:2000 /stalwart-certs
+		chmod -R 755 /stalwart-certs
+		find /stalwart-certs -type f -name '*.key' -exec chmod 600 {} +
+		find /stalwart-certs -type f -name '*.crt' -exec chmod 644 {} +
+	else
+		echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] Waiting for certificates in /caddy-data/caddy/certificates..."
+	fi
+
+	sleep 43200 &
+	wait $!
+done