Support to store and monitor kubevirt POD resource
Change-Id: I2b484a806549620c5b1352da63061cd850b0284c
diff --git a/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/cli/KubevirtListPodCommand.java b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/cli/KubevirtListPodCommand.java
new file mode 100644
index 0000000..2ad937a
--- /dev/null
+++ b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/cli/KubevirtListPodCommand.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.kubevirtnetworking.cli;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import io.fabric8.kubernetes.api.model.Pod;
+import io.fabric8.kubernetes.client.utils.Serialization;
+import org.apache.commons.lang.StringUtils;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.kubevirtnetworking.api.KubevirtPodService;
+
+import java.io.IOException;
+import java.util.Comparator;
+import java.util.List;
+
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_IP_ADDRESS_LENGTH;
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_MARGIN_LENGTH;
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_NAMESPACE_LENGTH;
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_NAME_LENGTH;
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_STATUS_LENGTH;
+import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.genFormatString;
+import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.prettyJson;
+
+/**
+ * Lists kubevirt pods.
+ */
+@Service
+@Command(scope = "onos", name = "kubevirt-pods",
+ description = "Lists all kubevirt pods")
+public class KubevirtListPodCommand extends AbstractShellCommand {
+ @Override
+ protected void doExecute() throws Exception {
+ KubevirtPodService service = get(KubevirtPodService.class);
+ List<Pod> pods = Lists.newArrayList(service.pods());
+ pods.sort(Comparator.comparing(p -> p.getMetadata().getName()));
+
+ String format = genFormatString(ImmutableList.of(CLI_NAME_LENGTH,
+ CLI_NAMESPACE_LENGTH, CLI_STATUS_LENGTH, CLI_IP_ADDRESS_LENGTH));
+
+ if (outputJson()) {
+ print("%s", json(pods));
+ } else {
+ print(format, "Name", "Namespace", "Status", "IP Address");
+
+ for (Pod pod : pods) {
+
+ List<String> containers = Lists.newArrayList();
+
+ pod.getSpec().getContainers().forEach(c -> containers.add(c.getName()));
+
+ print(format,
+ StringUtils.substring(pod.getMetadata().getName(),
+ 0, CLI_NAME_LENGTH - CLI_MARGIN_LENGTH),
+ StringUtils.substring(pod.getMetadata().getNamespace(),
+ 0, CLI_NAMESPACE_LENGTH - CLI_MARGIN_LENGTH),
+ pod.getStatus().getPhase(),
+ StringUtils.substring(pod.getStatus().getPodIP(),
+ 0, CLI_IP_ADDRESS_LENGTH - CLI_MARGIN_LENGTH));
+ }
+ }
+ }
+
+ private String json(List<Pod> pods) {
+ ObjectMapper mapper = new ObjectMapper();
+ ArrayNode result = mapper.createArrayNode();
+ try {
+ for (Pod pod : pods) {
+ ObjectNode json = (ObjectNode) new ObjectMapper()
+ .readTree(Serialization.asJson(pod));
+ result.add(json);
+ }
+ return prettyJson(mapper, result.toString());
+ } catch (IOException e) {
+ log.warn("Failed to parse POD's JSON string.");
+ return "";
+ }
+ }
+}