add: wordpress stack

docker/wordpress/scripts/docker-entrypoint.d/01-wait-for-db-unpriv.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env sh
+set -eu
+
+# Maximum number of attempts (can be overridden via MAX_TRIES env var)
+MAX_TRIES="${MAX_TRIES:-10}"
+# Interval in seconds between attempts (can be overridden via INTERVAL env var)
+INTERVAL="${INTERVAL:-5}"
+
+try=0
+
+echo "debug: $0";
+
+while [ "$try" -lt "$MAX_TRIES" ]; do
+  try=$((try + 1))
+  echo "trying to reach mysql server (${WORDPRESS_DB_HOST:-${DB_HOST}}:${WORDPRESS_DB_PORT:-${DB_PORT:-3306}}) ${try}/${MAX_TRIES}...";
+
+  # Test MySQL server readiness using PHP (no mysql client or WP install required)
+  if php -r '
+error_reporting(0);
+$host = getenv("WORDPRESS_DB_HOST") ?: getenv("DB_HOST") ?: "mysql";
+$user = getenv("WORDPRESS_DB_USER") ?: getenv("DB_USER") ?: "root";
+$pass = getenv("WORDPRESS_DB_PASSWORD") ?: getenv("DB_PASSWORD") ?: "";
+$port = getenv("WORDPRESS_DB_PORT") ?: getenv("DB_PORT") ?: 3306;
+
+$mysqli = @new mysqli($host, $user, $pass, "", (int) $port);
+
+if ($mysqli && !$mysqli->connect_errno) {
+    exit(0); // connection OK
+}
+exit(1); // connection failed
+'; then
+    #echo "MySQL is ready, continuing..."
+    exit 0
+  fi
+
+  sleep "$INTERVAL"
+done
+
+DURATION=$((MAX_TRIES * INTERVAL))
+echo "MySQL was not ready after ${DURATION}s" >&2
+exit 1