Feature/web gui2 (#16)

Add oveview and enhance.

org.jdrupes.vmoperator.manager/build.gradle

@@ -39,7 +39,7 @@ dependencies {
 
 application {
     applicationName = 'vm-manager'
-    applicationDefaultJvmArgs = ['-Xmx128m', '-XX:+UseParallelGC',
+    applicationDefaultJvmArgs = ['-Xmx64m', '-XX:+UseParallelGC',
         '-Djava.util.logging.manager=org.jdrupes.vmoperator.util.LongLoggingManager'
         ]
     // Define the main class for the application.

org.jdrupes.vmoperator.manager/resources/org/jdrupes/vmoperator/manager/console-footer.ftl.html

@@ -0,0 +1,3 @@
+<footer>
+Copyright &copy; Michael N. Lipp 2023
+</footer>

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/AvoidEmptyPolicy.java

@@ -0,0 +1,94 @@
+/*
+ * VM-Operator
+ * Copyright (C) 2023 Michael N. Lipp
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.jdrupes.vmoperator.manager;
+
+import java.io.IOException;
+import org.jgrapes.core.Channel;
+import org.jgrapes.core.Component;
+import org.jgrapes.core.annotation.Handler;
+import org.jgrapes.webconsole.base.Conlet;
+import org.jgrapes.webconsole.base.ConsoleConnection;
+import org.jgrapes.webconsole.base.events.AddConletRequest;
+import org.jgrapes.webconsole.base.events.ConsoleConfigured;
+import org.jgrapes.webconsole.base.events.ConsoleReady;
+import org.jgrapes.webconsole.base.events.RenderConlet;
+
+/**
+ * 
+ */
+public class AvoidEmptyPolicy extends Component {
+
+    private final String renderedFlagName = getClass().getName() + ".rendered";
+
+    /**
+     * Creates a new component with its channel set to the given channel.
+     * 
+     * @param componentChannel
+     */
+    public AvoidEmptyPolicy(Channel componentChannel) {
+        super(componentChannel);
+    }
+
+    /**
+     * On console ready.
+     *
+     * @param event the event
+     * @param connection the connection
+     */
+    @Handler
+    public void onConsoleReady(ConsoleReady event,
+            ConsoleConnection connection) {
+        connection.session().put(renderedFlagName, false);
+    }
+
+    /**
+     * On render conlet.
+     *
+     * @param event the event
+     * @param connection the connection
+     */
+    @Handler
+    public void onRenderConlet(RenderConlet event,
+            ConsoleConnection connection) {
+        connection.session().put(renderedFlagName, true);
+    }
+
+    /**
+     * On console configured.
+     *
+     * @param event the event
+     * @param connection the console connection
+     * @throws InterruptedException the interrupted exception
+     */
+    @Handler
+    public void onConsoleConfigured(ConsoleConfigured event,
+            ConsoleConnection connection) throws InterruptedException,
+            IOException {
+        if ((Boolean) connection.session().getOrDefault(
+            renderedFlagName, false)) {
+            return;
+        }
+        fire(new AddConletRequest(event.event().event().renderSupport(),
+            "org.jdrupes.vmoperator.vmconlet.VmConlet",
+            Conlet.RenderMode
+                .asSet(Conlet.RenderMode.Preview, Conlet.RenderMode.View)),
+            connection);
+    }
+
+}

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Controller.java

@@ -30,8 +30,7 @@ import java.util.logging.Level;
 import static org.jdrupes.vmoperator.common.Constants.VM_OP_GROUP;
 import static org.jdrupes.vmoperator.common.Constants.VM_OP_KIND_VM;
 import org.jdrupes.vmoperator.common.K8s;
-import org.jdrupes.vmoperator.manager.events.StartVm;
-import org.jdrupes.vmoperator.manager.events.StopVm;
+import org.jdrupes.vmoperator.manager.events.ModifyVm;
 import org.jdrupes.vmoperator.manager.events.VmDefChanged;
 import org.jgrapes.core.Channel;
 import org.jgrapes.core.Component;
@@ -152,30 +151,18 @@ public class Controller extends Component {
     }
 
     /**
-     * On start vm.
+     * On modify vm.
      *
      * @param event the event
      * @throws ApiException the api exception
      * @throws IOException Signals that an I/O exception has occurred.
      */
     @Handler
-    public void onStartVm(StartVm event) throws ApiException, IOException {
-        patchRunning(event.name(), true);
+    public void onModigyVm(ModifyVm event) throws ApiException, IOException {
+        patchVmSpec(event.name(), event.path(), event.value());
     }
 
-    /**
-     * On stop vm.
-     *
-     * @param event the event
-     * @throws ApiException the api exception
-     * @throws IOException Signals that an I/O exception has occurred.
-     */
-    @Handler
-    public void onStopVm(StopVm event) throws ApiException, IOException {
-        patchRunning(event.name(), false);
-    }
-
-    private void patchRunning(String name, boolean running)
+    private void patchVmSpec(String name, String path, Object value)
             throws ApiException, IOException {
         var crApi = K8s.crApi(Config.defaultClient(), VM_OP_GROUP,
             VM_OP_KIND_VM, namespace, name);
@@ -188,12 +175,13 @@ public class Controller extends Component {
         // Patch running
         PatchOptions patchOpts = new PatchOptions();
         patchOpts.setFieldManager("kubernetes-java-kubectl-apply");
+        String valueAsText = value instanceof String
+            ? "\"" + value + "\""
+            : value.toString();
         var res = crApi.get().patch(namespace, name,
             V1Patch.PATCH_FORMAT_JSON_PATCH,
-            new V1Patch("[{\"op\": \"replace\", \"path\": "
-                + "\"/spec/vm/state\", "
-                + "\"value\": \"" + (running ? "Running" : "Stopped")
-                + "\"}]"),
+            new V1Patch("[{\"op\": \"replace\", \"path\": \"/spec/vm/"
+                + path + "\", \"value\": " + valueAsText + "}]"),
             patchOpts);
         if (!res.isSuccess()) {
             logger.warning(

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Manager.java

@@ -135,6 +135,7 @@ public class Manager extends Component {
         console.attach(new BrowserLocalBackedKVStore(
             console.channel(), consoleWeblet.prefix().getPath()));
         console.attach(new KVStoreBasedConsolePolicy(console.channel()));
+        console.attach(new AvoidEmptyPolicy(console.channel()));
         console.attach(new RoleConfigurator(console.channel()));
         console.attach(new RoleConletFilter(console.channel()));
         console.attach(new LoginConlet(console.channel()));