Bug #115452 No High-Availability Support in MySQL Router Docker Image

• Submitted: 28 Jun 2024 7:43
• Modified: 28 Jun 2024 15:52
• Reporter: Johnathan Smithons
• Status: Verified
• Category: MySQL Router: Docker Image
• Severity: S2 (Serious)
• OS: Any
• CPU Architecture: Any

[28 Jun 2024 7:43] Johnathan Smithons

Description:
The docker image will wait until MYSQL_HOST is up and then perform a bootstrap.

This means that when the cluster is running fine, but with MYSQL_HOST in maintenance, the router will never come up.

How to repeat:
Run docker image

Suggested fix:
Proposed solution, allow mounting of a persistent directory into /tmp/mysqlrouter and check if that directory exists on startup. 

If it exists, skip right to mysqlrouter --config /tmp/mysqlrouter/mysqlrouter.conf, otherwise run bootstrap

So basically just add "if [ -d /tmp/mysqlrouter ]; then" to /run.sh

[28 Jun 2024 15:52] MySQL Verification Team

Thanks for the report.