From 73fc14dec0d0b8e9f22aa473ac6d20e599773a17 Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@icinga.com>
Date: Fri, 20 Jan 2023 15:34:45 +0100
Subject: [PATCH] Entrypoint: re-try database connection on error for <=5m

---
 .../db-init/application/clicommands/DbCommand.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/entrypoint/db-init/application/clicommands/DbCommand.php b/entrypoint/db-init/application/clicommands/DbCommand.php
index e8967f4..0d823e1 100644
--- a/entrypoint/db-init/application/clicommands/DbCommand.php
+++ b/entrypoint/db-init/application/clicommands/DbCommand.php
@@ -11,6 +11,7 @@ use Icinga\Data\Filter\Filter;
 use Icinga\Data\ResourceFactory;
 use Icinga\Module\Setup\Utils\DbTool;
 use Icinga\Util\Json;
+use PDOException;
 
 class DbCommand extends Command
 {
@@ -94,6 +95,20 @@ class DbCommand extends Command
             }
         }
 
+        for ($i = 0; $i < 100; ++$i) {
+            try {
+                (new DbTool($config))->checkConnectivity();
+                break;
+            } catch (PDOException $e) {
+                fprintf(
+                    STDERR, "[%s] [docker_entrypoint:error] [pid %d] DOCKERE: Can't connect to database: %s\n",
+                    date('D M j H:i:s.u Y'), getmypid(), $e->getMessage()
+                );
+
+                sleep(3);
+            }
+        }
+
         $db = new DbTool($config);
         $db->connectToDb();
         $db->dbType = $type;