获取namespace列表新增缓存

src/main/java/cn/qg/holmes/service/k8s/K8sService.java

@@ -2,6 +2,8 @@ package cn.qg.holmes.service.k8s;
 
 import cn.qg.holmes.entity.k8s.DockerProject;
 import cn.qg.holmes.entity.k8s.ServiceCreateVo;
+import cn.qg.holmes.utils.RedisUtils;
+import com.alibaba.fastjson.JSON;
 import io.fabric8.kubernetes.api.model.*;
 import io.fabric8.kubernetes.api.model.apps.Deployment;
 import io.fabric8.kubernetes.api.model.apps.DeploymentSpec;
@@ -12,6 +14,7 @@ import io.fabric8.kubernetes.client.Config;
 import io.fabric8.kubernetes.client.DefaultKubernetesClient;
 import io.fabric8.kubernetes.client.KubernetesClient;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.stereotype.Component;
@@ -27,11 +30,16 @@ import java.util.*;
 @Component
 public class K8sService {
 
+    @Autowired
+    RedisUtils redisUtils;
+
     @Value("${no.healthcheck.service}")
     private String noHealthCheckService;
 
     private KubernetesClient kubernetesClient;
 
+    private final String NS_PREFIX = "namespace:";
+
     public K8sService() {
         try {
             String configYAML = String.join("\n", readConfigFile("kube-config.yml"));
@@ -110,8 +118,13 @@ public class K8sService {
      * 获取namespace列表
      * @return
      */
-    public List<Map<String, Object>> getNamespaceList(String env) {
-        List<Map<String, Object>> resultList = new ArrayList<>();
+    public List<Map> getNamespaceList(String env) {
+        // 首先从缓存获取
+        Object redisValue = redisUtils.get(NS_PREFIX + env);
+        if (redisValue != null) {
+            return JSON.parseArray(redisValue.toString(), Map.class);
+        } else {
+            List<Map> resultList = new ArrayList<>();
             List<Namespace> namespaceList = kubernetesClient.namespaces().list().getItems();
             for (Namespace namespace : namespaceList) {
                 if (namespace.getMetadata().getAnnotations() != null && env.equals("all")) {
@@ -133,7 +146,7 @@ public class K8sService {
                     }
                     SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
                     df.setTimeZone(TimeZone.getTimeZone("UTC"));
-                Map<String, Object> map = new HashMap<>();
+                    Map map = new HashMap<>();
                     map.put("name", name);
                     map.put("description", namespace.getMetadata().getAnnotations().get("description"));
                     map.put("owner", namespace.getMetadata().getAnnotations().get("owner"));
@@ -184,8 +197,11 @@ public class K8sService {
                     resultList.add(map);
                 }
             }
+            // 设置缓存
+            redisUtils.set(NS_PREFIX + env, JSON.toJSONString(resultList), 1800);
             return resultList;
         }
+    }
 
     /**
      * 获取运行中的pod列表