Implement kubernetes external loadbalancer handler.
Change-Id: I0f3057d66769f0ca7db7d508483835cdd1ff1593
(cherry picked from commit 5ff76b7bd3ef45b8538464a6fc510995d120739e)
diff --git a/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/cli/KubernetesExternalLbConfigCommand.java b/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/cli/KubernetesExternalLbConfigCommand.java
new file mode 100644
index 0000000..6eeb220
--- /dev/null
+++ b/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/cli/KubernetesExternalLbConfigCommand.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2022-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.kubevirtnode.cli;
+
+import com.google.common.collect.ImmutableList;
+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.onlab.packet.IpAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.kubevirtnode.api.KubernetesExternalLbConfig;
+import org.onosproject.kubevirtnode.api.KubernetesExternalLbConfigService;
+
+import static org.onosproject.kubevirtnode.api.Constants.CLI_IP_ADDRESSES_LENGTH;
+import static org.onosproject.kubevirtnode.api.Constants.CLI_IP_ADDRESS_LENGTH;
+import static org.onosproject.kubevirtnode.api.Constants.CLI_MAC_ADDRESS_LENGTH;
+import static org.onosproject.kubevirtnode.api.Constants.CLI_MARGIN_LENGTH;
+import static org.onosproject.kubevirtnode.api.Constants.CLI_NAME_LENGTH;
+import static org.onosproject.kubevirtnode.util.KubevirtNodeUtil.genFormatString;
+
+/**
+ * Lists all Kubernetes External LB config registered to the service.
+ */
+@Service
+@Command(scope = "onos", name = "kubernetes-lb-configs",
+ description = "Lists all Kubernetes External LB config registered to the service")
+public class KubernetesExternalLbConfigCommand extends AbstractShellCommand {
+
+ private static final String KUBE_VIP = "kubevip";
+
+ @Override
+ protected void doExecute() throws Exception {
+ KubernetesExternalLbConfigService service = get(KubernetesExternalLbConfigService.class);
+
+ String format = genFormatString(ImmutableList.of(CLI_NAME_LENGTH,
+ org.onosproject.kubevirtnode.api.Constants.CLI_IP_ADDRESS_LENGTH,
+ CLI_MAC_ADDRESS_LENGTH, CLI_IP_ADDRESSES_LENGTH));
+
+ KubernetesExternalLbConfig lbConfig = service.lbConfig(KUBE_VIP);
+
+ if (lbConfig == null) {
+ print("LB config not found!");
+ } else {
+ print(format, "ConfigName", "Gateway IP", "Gateway MAC", "Global-Range");
+
+ String configName = lbConfig.configName();
+ IpAddress gatewayIp = lbConfig.loadBalancerGwIp();
+ String gatewayMac = lbConfig.loadBalancerGwMac() == null ? "N/A" : lbConfig.loadBalancerGwMac().toString();
+ String globalRange = lbConfig.globalIpRange() == null ? "N/A" : lbConfig.globalIpRange();
+
+ print(format, StringUtils.substring(configName, 0,
+ CLI_NAME_LENGTH - CLI_MARGIN_LENGTH),
+ StringUtils.substring(gatewayIp.toString(), 0,
+ CLI_IP_ADDRESS_LENGTH - CLI_MARGIN_LENGTH),
+ StringUtils.substring(gatewayMac, 0,
+ CLI_MAC_ADDRESS_LENGTH - CLI_MARGIN_LENGTH),
+ StringUtils.substring(globalRange, 0,
+ CLI_IP_ADDRESSES_LENGTH - CLI_MARGIN_LENGTH)
+ );
+ }
+ }
+}