From 630f506d0c686feb5f73d2bf7fc7b6579b004742 Mon Sep 17 00:00:00 2001
From: David-Villeneuve <25620250+David-Villeneuve@users.noreply.github.com>
Date: Fri, 5 Nov 2021 10:07:43 -0400
Subject: [PATCH] Prevent premature removal of agent when Jenkins is in quiet
 mode Issue:  https://github.com/jenkinsci/docker-swarm-plugin/issues/113

---
 .../docker/swarm/DockerSwarmAgentRetentionStrategy.java        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/jenkinsci/plugins/docker/swarm/DockerSwarmAgentRetentionStrategy.java b/src/main/java/org/jenkinsci/plugins/docker/swarm/DockerSwarmAgentRetentionStrategy.java
index 31e4878..41cc23d 100644
--- a/src/main/java/org/jenkinsci/plugins/docker/swarm/DockerSwarmAgentRetentionStrategy.java
+++ b/src/main/java/org/jenkinsci/plugins/docker/swarm/DockerSwarmAgentRetentionStrategy.java
@@ -19,6 +19,7 @@
 import hudson.model.ExecutorListener;
 import hudson.model.Queue;
 import hudson.slaves.RetentionStrategy;
+import jenkins.model.Jenkins;
 
 public class DockerSwarmAgentRetentionStrategy extends RetentionStrategy<DockerSwarmComputer>
         implements ExecutorListener {
@@ -45,7 +46,7 @@ public long check(@Nonnull DockerSwarmComputer c) {
             final long connectTime = System.currentTimeMillis() - c.getConnectTime();
             final long idleTime = System.currentTimeMillis() - c.getIdleStartMilliseconds();
             final boolean isTimeout = connectTime > timeout && idleTime > timeout;
-            if (isTimeout && (!isTaskAccepted || isTaskCompleted)) {
+            if (isTimeout && (!isTaskAccepted || isTaskCompleted ) && !Jenkins.getInstance().isQuietingDown()) {
                 LOGGER.log(Level.INFO, "Disconnecting due to idle {0}", c.getName());
                 done(c);
             }