Do not stop the codebuild, to allow for postbuild actions

.tool-versions

@@ -1 +1 @@
-java adopt-openjdk-8u242-b08
+java adoptopenjdk-8.0.242+8.1

src/main/java/dev/lsegal/jenkins/codebuilder/CodeBuilderAgent.java

@@ -59,22 +59,7 @@ public AbstractCloudComputer<CodeBuilderAgent> createComputer() {
   /** {@inheritDoc} */
   @Override
   protected void _terminate(TaskListener listener) throws IOException, InterruptedException {
-    listener.getLogger().println("[CodeBuilder]: Terminating agent: " + getDisplayName());
-
-    if (getLauncher() instanceof CodeBuilderLauncher) {
-      String buildId = ((CodeBuilderComputer) getComputer()).getBuildId();
-      if (StringUtils.isBlank(buildId)) {
-        return;
-      }
-
-      try {
-        LOGGER.info("[CodeBuilder]: Stopping build ID: {}", buildId);
-        cloud.getClient().stopBuild(new StopBuildRequest().withId(buildId));
-      } catch (ResourceNotFoundException e) {
-        // this is fine. really.
-      } catch (Exception e) {
-        LOGGER.error("[CodeBuilder]: Failed to stop build ID: {}", buildId, e);
-      }
-    }
+    LOGGER.info("[CodeBuilder]: Terminating agent: " + getDisplayName());
+    ((CodeBuilderComputer) getComputer()).gracefulShutdown();
   }
 }

src/main/java/dev/lsegal/jenkins/codebuilder/CodeBuilderComputer.java

@@ -13,6 +13,7 @@
 import hudson.model.Executor;
 import hudson.model.Queue;
 import hudson.slaves.AbstractCloudComputer;
+import hudson.slaves.OfflineCause;
 
 /**
  * CodeBuilderComputer class.
@@ -99,19 +100,15 @@ public String toString() {
     return String.format("name: %s buildID: %s", getName(), getBuildId());
   }
 
-  private void gracefulShutdown() {
+  protected void gracefulShutdown() {
     setAcceptingTasks(false);
 
-    Future<Object> next = Computer.threadPoolForRemoting.submit(() -> {
-      LOGGER.info("[CodeBuilder]: [{}]: Terminating agent after task.", this);
-      try {
-        Thread.sleep(500);
-        CodeBuilderCloud.jenkins().removeNode(getNode());
-      } catch (Exception e) {
-        LOGGER.info("[CodeBuilder]: [{}]: Termination error: {}", this, e.getClass());
-      }
-      return null;
-    });
-    next.notify();
+    LOGGER.info("[CodeBuilder]: [{}]: Terminating agent after task.", this);
+    try {
+      Thread.sleep(500);
+      disconnect(new OfflineCause.IdleOfflineCause());
+    } catch (Exception e) {
+      LOGGER.info("[CodeBuilder]: [{}]: Termination error: {}", this, e.getClass());
+    }
   }
 }