[JENKINS-71407] Amazon EC2 cloud configuration is lost after jenkins master restart

Amazon EC2 plugin Version2.0.7

1. new cloud (type amazon ec2) -> config -> test connection - > save, no problem, can see it $JENKINSURL/manage/cloud/


2. $JENKINSURL/saferestart


3. configuration for ec2 cloud is lost

---
Originally reported by andrewdsny, imported from: Amazon EC2 cloud configuration is lost after jenkins master restart

• assignee: thoulen
  
• status: Open
  
• priority: Minor
  
• component(s): ec2-plugin
  
• resolution: Unresolved
  
• votes: 1
  
• watchers: 2
  
• imported: 2025-12-06
  

Raw content of original issue

Amazon EC2 plugin Version2.0.7



	
new cloud (type amazon ec2) -> config -> test connection - > save, no problem, can see it $JENKINSURL/manage/cloud/

	
$JENKINSURL/saferestart

	
configuration for ec2 cloud is lost

environment

```
Jenkins Version 2.409 on kubernetes cluster(version v1.25.8)

openjdk 17.0.7 2023-04-18

OpenJDK Runtime Environment Temurin-17.0.7+7 (build 17.0.7+7)

OpenJDK 64-Bit Server VM Temurin-17.0.7+7 (build 17.0.7+7, mixed mode)

```

2 attachments

- [after-restart](https://issues.jenkins.io/secure/attachment/60558/after-restart)
- [beforerestart](https://issues.jenkins.io/secure/attachment/60557/beforerestart)

Reproduce the loss from the Jenkins cloud management page by creating an Amazon EC2 cloud, saving it, and using /saferestart. Trace how the ec2-plugin persists and reloads that cloud configuration, using the before-restart and after-restart attachments as evidence. Done means the configuration remains available after restart and a regression test covers the behavior.

Written by the indexing model from the issue text.