Enhancement: support for Kubernetes gateway API (#4643)

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>
Co-authored-by: lyons <gittea.sand@gmail.com>
Co-authored-by: Brett Dudo <brett@dudo.io>

src/utils/kubernetes/traefik-list.js

@@ -0,0 +1,70 @@
+import { CustomObjectsApi } from "@kubernetes/client-node";
+
+import { getKubernetes, getKubeConfig, checkCRD, ANNOTATION_BASE } from "utils/config/kubernetes";
+import createLogger from "utils/logger";
+
+const logger = createLogger("traefik-list");
+const kc = getKubeConfig();
+
+export default async function listTraefikIngress() {
+  const { traefik } = getKubernetes();
+  const traefikList = [];
+
+  if (traefik) {
+    const crd = kc.makeApiClient(CustomObjectsApi);
+    const traefikContainoExists = await checkCRD("ingressroutes.traefik.containo.us", kc, logger);
+    const traefikExists = await checkCRD("ingressroutes.traefik.io", kc, logger);
+
+    const traefikIngressListContaino = await crd
+      .listClusterCustomObject({
+        group: "traefik.containo.us",
+        version: "v1alpha1",
+        plural: "ingressroutes",
+      })
+      .then((response) => response)
+      .catch(async (error) => {
+        if (traefikContainoExists) {
+          logger.error(
+            "Error getting traefik ingresses from traefik.containo.us: %d %s %s",
+            error.statusCode,
+            error.body,
+            error.response,
+          );
+          logger.debug(error);
+        }
+
+        return [];
+      });
+
+    const traefikIngressListIo = await crd
+      .listClusterCustomObject({
+        group: "traefik.io",
+        version: "v1alpha1",
+        plural: "ingressroutes",
+      })
+      .then((response) => response.body)
+      .catch(async (error) => {
+        if (traefikExists) {
+          logger.error(
+            "Error getting traefik ingresses from traefik.io: %d %s %s",
+            error.statusCode,
+            error.body,
+            error.response,
+          );
+          logger.debug(error);
+        }
+
+        return [];
+      });
+
+    const traefikIngressList = [...(traefikIngressListContaino?.items ?? []), ...(traefikIngressListIo?.items ?? [])];
+
+    if (traefikIngressList.length > 0) {
+      const traefikServices = traefikIngressList.filter(
+        (ingress) => ingress.metadata.annotations && ingress.metadata.annotations[`${ANNOTATION_BASE}/href`],
+      );
+      traefikList.push(...traefikServices);
+    }
+  }
+  return traefikList;
+}