Add Pod log for kubernetes agent

src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesComputer.java

@@ -1,11 +1,28 @@
 package org.csanchez.jenkins.plugins.kubernetes;
 
-import hudson.EnvVars;
 import hudson.model.Executor;
 import hudson.model.Queue;
 import hudson.slaves.AbstractCloudComputer;
+import io.fabric8.kubernetes.api.model.Container;
+import io.fabric8.kubernetes.api.model.Pod;
+import io.fabric8.kubernetes.client.KubernetesClient;
+import jenkins.model.Jenkins;
+import org.apache.commons.lang.StringUtils;
+import org.kohsuke.stapler.QueryParameter;
+import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.StaplerResponse;
+import org.kohsuke.stapler.export.Exported;
+import org.kohsuke.stapler.framework.io.ByteBuffer;
+import org.kohsuke.stapler.framework.io.LargeText;
+
 import java.io.IOException;
 
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateEncodingException;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -40,6 +57,42 @@ public void taskCompletedWithProblems(Executor executor, Queue.Task task, long d
         LOGGER.log(Level.FINE, " Computer " + this + " taskCompletedWithProblems");
     }
 
+    @Exported
+    public List<Container> getContainers() throws UnrecoverableKeyException, CertificateEncodingException, NoSuchAlgorithmException, KeyStoreException, IOException {
+        Jenkins.get().checkPermission(Jenkins.ADMINISTER);
+        KubernetesSlave slave = getNode();
+        if(slave == null) {
+            return new ArrayList<>();
+        }
+
+        KubernetesCloud cloud = slave.getKubernetesCloud();
+        KubernetesClient client = cloud.connect();
+
+        String namespace = StringUtils.defaultIfBlank(slave.getNamespace(), client.getNamespace());
+        Pod pod = client.pods().inNamespace(namespace).withName(getName()).get();
+
+        return pod.getSpec().getContainers();
+    }
+
+    public void doContainerLog(@QueryParameter String containerId,
+                               StaplerRequest req, StaplerResponse rsp) throws UnrecoverableKeyException, CertificateEncodingException, NoSuchAlgorithmException, KeyStoreException, IOException {
+        Jenkins.get().checkPermission(Jenkins.ADMINISTER);
+
+        ByteBuffer outputStream = new ByteBuffer();
+        KubernetesSlave slave = getNode();
+        if(slave != null) {
+            KubernetesCloud cloud = slave.getKubernetesCloud();
+            KubernetesClient client = cloud.connect();
+
+            String namespace = StringUtils.defaultIfBlank(slave.getNamespace(), client.getNamespace());
+
+            client.pods().inNamespace(namespace).withName(getName())
+                    .inContainer(containerId).tailingLines(20).watchLog(outputStream);
+        }
+
+        new LargeText(outputStream, false).doProgressText(req, rsp);
+    }
+
     @Override
     public String toString() {
         return String.format("KubernetesComputer name: %s slave: %s", getName(), getNode());

src/main/resources/org/csanchez/jenkins/plugins/kubernetes/KubernetesComputer/container.jelly

@@ -0,0 +1,37 @@
+<!--
+The MIT License
+
+Copyright (c) 2018, Alauda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form" xmlns:i="jelly:fmt">
+  <l:layout title="${it.displayName} log" secured="true">
+    <st:include page="sidepanel.jelly" />
+    <l:main-panel>
+      <pre id="out" />
+      <div id="spinner">
+        <img src="${imagesURL}/spinner.gif" alt=""/>
+      </div>
+      <t:progressiveText href="containerLog?containerId=${request.getParameter('name')}" idref="out" spinner="spinner" />
+    </l:main-panel>
+  </l:layout>
+</j:jelly>

src/main/resources/org/csanchez/jenkins/plugins/kubernetes/KubernetesComputer/podLog.jelly

@@ -0,0 +1,46 @@
+<!--
+The MIT License
+
+Copyright (c) 2018，Alauda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form" xmlns:i="jelly:fmt">
+  <l:layout title="${it.displayName} log" secured="true">
+    <st:include page="sidepanel.jelly" />
+    <l:main-panel>
+      <table class="sortable pane bigtable">
+        <tr>
+          <th>Name</th><th>Image</th><th>ImagePullPolicy</th><th>WorkingDir</th>
+        </tr>
+
+        <j:forEach var="v" items="${it.containers}">
+          <tr>
+            <td><f:link href="container?name=${v.name}">${v.name}</f:link></td>
+            <td>${v.image}</td>
+            <td>${v.imagePullPolicy}</td>
+            <td>${v.workingDir}</td>
+          </tr>
+        </j:forEach>
+      </table>
+    </l:main-panel>
+  </l:layout>
+</j:jelly>

src/main/resources/org/csanchez/jenkins/plugins/kubernetes/KubernetesComputer/sidepanel2.jelly

@@ -0,0 +1,31 @@
+<!--
+The MIT License
+
+Copyright (c) 2018，Alauda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:l="/lib/layout">
+  <l:isAdmin>
+  <l:task icon="icon-clipboard icon-md" href="${rootURL}/${it.url}log" title="${%Log}" permission="${it.CONNECT}" />
+  <l:task icon="icon-computer icon-md" href="${rootURL}/${it.url}podLog" title="${%PodLog}"/>
+  </l:isAdmin>
+</j:jelly>