From 6aae1c80e4d74a71f0522a558e00630081ed73ea Mon Sep 17 00:00:00 2001
From: Asif Bacchus <asif@asifbacchus.dev>
Date: Tue, 7 Sep 2021 03:06:20 -0600
Subject: [PATCH] feature(dockerfile): add basic healthcheck

- check mysqld service only, not actual database
---
 Dockerfile | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 61ccefa..fce15d6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,6 +30,14 @@ EXPOSE 3306
 # create volume if user forgets
 VOLUME ["/var/lib/mysql"]
 
+# basic healthcheck (service only)
+HEALTHCHECK \
+    --interval=30s \
+    --timeout=10s \
+    --start-period=30s \
+    --retries=3 \
+    CMD mysqladmin ping --silent
+
 # set environment variables
 ENV TZ=Etc/UTC
 ENV MYSQL_UID=8100