[JENKINS-75011] Use Apache Mina as ssh transport layer, remove trilead

pom.xml

@@ -110,6 +110,14 @@ THE SOFTWARE.
         </exclusion>
       </exclusions>
     </dependency>
+    <dependency>
+      <groupId>io.jenkins.plugins.mina-sshd-api</groupId>
+      <artifactId>mina-sshd-api-core</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.jenkins.plugins.mina-sshd-api</groupId>
+      <artifactId>mina-sshd-api-scp</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>apache-httpcomponents-client-4-api</artifactId>
@@ -138,10 +146,6 @@ THE SOFTWARE.
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>ssh-credentials</artifactId>
     </dependency>
-    <dependency>
-      <groupId>org.jenkins-ci.plugins</groupId>
-      <artifactId>trilead-api</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.jenkins-ci.plugins.aws-java-sdk</groupId>
       <artifactId>aws-java-sdk-ec2</artifactId>

src/main/java/hudson/plugins/ec2/EC2ComputerLauncher.java

@@ -23,13 +23,23 @@
  */
 package hudson.plugins.ec2;
 
+import static org.apache.sshd.client.session.ClientSession.REMOTE_COMMAND_WAIT_EVENTS;
+
 import com.amazonaws.AmazonClientException;
 import hudson.model.TaskListener;
 import hudson.slaves.ComputerLauncher;
 import hudson.slaves.SlaveComputer;
 import java.io.IOException;
+import java.time.Duration;
+import java.util.Set;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import org.apache.sshd.client.channel.ClientChannel;
+import org.apache.sshd.client.channel.ClientChannelEvent;
+import org.apache.sshd.client.session.ClientSession;
+import org.apache.sshd.scp.client.CloseableScpClient;
+import org.apache.sshd.scp.client.ScpClient;
+import org.apache.sshd.scp.client.ScpClientCreator;
 
 /**
  * {@link ComputerLauncher} for EC2 that wraps the real user-specified {@link ComputerLauncher}.
@@ -39,6 +49,8 @@
 public abstract class EC2ComputerLauncher extends ComputerLauncher {
     private static final Logger LOGGER = Logger.getLogger(EC2ComputerLauncher.class.getName());
 
+    private static final long timeout = Duration.ofSeconds(10).toMillis();
+
     @Override
     public void launch(SlaveComputer slaveComputer, TaskListener listener) {
         try {
@@ -81,4 +93,19 @@
      */
     protected abstract void launchScript(EC2Computer computer, TaskListener listener)
             throws AmazonClientException, IOException, InterruptedException;
+
+    protected int waitCompletion(ClientChannel clientChannel) {
+        Set<ClientChannelEvent> clientChannelEvents = clientChannel.waitFor(REMOTE_COMMAND_WAIT_EVENTS, timeout);
+        if (clientChannelEvents.contains(ClientChannelEvent.TIMEOUT)) {
+            return -1;
+        } else {
+            return clientChannel.getExitStatus();
+        }
+    }
+
+    protected CloseableScpClient createScpClient(ClientSession session) {
+        ScpClientCreator creator = ScpClientCreator.instance();
+        ScpClient client = creator.createScpClient(session);
+        return CloseableScpClient.singleSessionInstance(client);
+    }
 }