Merge pull request #448 from jameswynn/kubernetes

Support for Kubernetes and Longhorn

src/components/services/item.jsx

@@ -4,8 +4,10 @@ import { useContext, useState } from "react";
 import Status from "./status";
 import Widget from "./widget";
 import Ping from "./ping";
+import KubernetesStatus from "./kubernetes-status";
 
 import Docker from "widgets/docker/component";
+import Kubernetes from "widgets/kubernetes/component";
 import { SettingsContext } from "utils/contexts/settings";
 import ResolvedIcon from "components/resolvedicon";
 
@@ -89,6 +91,16 @@ export default function Item({ service }) {
                   <span className="sr-only">View container stats</span>
                 </button>
               )}
+              {service.app && (
+                <button
+                  type="button"
+                  onClick={() => (statsOpen ? closeStats() : setStatsOpen(true))}
+                  className="flex-shrink-0 flex items-center justify-center cursor-pointer"
+                >
+                  <KubernetesStatus service={service} />
+                  <span className="sr-only">View container stats</span>
+                </button>
+              )}
           </div>
         </div>
 
@@ -102,6 +114,16 @@ export default function Item({ service }) {
             {statsOpen && <Docker service={{ widget: { container: service.container, server: service.server } }} />}
           </div>
         )}
+        {service.app && (
+          <div
+            className={classNames(
+              statsOpen && !statsClosing ? "max-h-[55px] opacity-100" : " max-h-[0] opacity-0",
+              "w-full overflow-hidden transition-all duration-300 ease-in-out"
+            )}
+          >
+            {statsOpen && <Kubernetes service={{ widget: { namespace: service.namespace, app: service.app, podSelector: service.podSelector } }} />}
+          </div>
+        )}
 
         {service.widget && <Widget service={service} />}
       </div>

src/components/services/kubernetes-status.jsx

@@ -0,0 +1,35 @@
+import useSWR from "swr";
+import { t } from "i18next";
+
+export default function KubernetesStatus({ service }) {
+  const podSelectorString = service.podSelector !== undefined ? `podSelector=${service.podSelector}` : "";
+  const { data, error } = useSWR(`/api/kubernetes/status/${service.namespace}/${service.app}?${podSelectorString}`);
+
+  if (error) {
+    <div className="w-auto px-1.5 py-0.5 text-center bg-theme-500/10 dark:bg-theme-900/50 rounded-b-[3px] overflow-hidden" title={data.status}>
+      <div className="text-[8px] font-bold text-rose-500/80 uppercase">{t("docker.error")}</div>
+    </div>
+  }
+
+  if (data && data.status === "running") {
+    return (
+      <div className="w-auto px-1.5 py-0.5 text-center bg-theme-500/10 dark:bg-theme-900/50 rounded-b-[3px] overflow-hidden" title={data.health ?? data.status}>
+        <div className="text-[8px] font-bold text-emerald-500/80 uppercase">{data.health ?? data.status}</div>
+      </div>
+    );
+  }
+
+  if (data && (data.status === "not found" || data.status === "down" || data.status === "partial")) {
+    return (
+      <div className="w-auto px-1.5 py-0.5 text-center bg-theme-500/10 dark:bg-theme-900/50 rounded-b-[3px] overflow-hidden" title={data.status}>
+        <div className="text-[8px] font-bold text-orange-400/50 dark:text-orange-400/80 uppercase">{data.status}</div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="w-auto px-1.5 py-0.5 text-center bg-theme-500/10 dark:bg-theme-900/50 rounded-b-[3px] overflow-hidden">
+      <div className="text-[8px] font-bold text-black/20 dark:text-white/40 uppercase">{t("docker.unknown")}</div>
+    </div>
+  );
+}

src/components/widgets/kubernetes/kubernetes.jsx

@@ -0,0 +1,74 @@
+import useSWR from "swr";
+import { BiError } from "react-icons/bi";
+import { useTranslation } from "next-i18next";
+
+import Node from "./node";
+
+export default function Widget({ options }) {
+  const { cluster, nodes } = options;
+  const { t, i18n } = useTranslation();
+
+  const defaultData = {
+    cpu: {
+      load: 0,
+      total: 0,
+      percent: 0
+    },
+    memory: {
+      used: 0,
+      total: 0,
+      free: 0,
+      precent: 0
+    }
+  };
+
+  const { data, error } = useSWR(
+    `/api/widgets/kubernetes?${new URLSearchParams({ lang: i18n.language }).toString()}`, {
+      refreshInterval: 1500
+    }
+  );
+
+  if (error || data?.error) {
+    return (
+      <div className="flex flex-col justify-center first:ml-0 ml-4">
+        <div className="flex flex-row items-center justify-end">
+          <div className="flex flex-row items-center">
+            <BiError className="w-8 h-8 text-theme-800 dark:text-theme-200" />
+            <div className="flex flex-col ml-3 text-left">
+              <span className="text-theme-800 dark:text-theme-200 text-sm">{t("widget.api_error")}</span>
+            </div>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  if (!data) {
+    return (
+      <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+        <div className="flex flex-row self-center flex-wrap justify-between">
+          {cluster.show &&
+            <Node type="cluster" key="cluster" options={options.cluster} data={defaultData} />
+          }
+          {nodes.show &&
+            <Node type="node" key="nodes" options={options.nodes} data={defaultData} />
+          }
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+      <div className="flex flex-row self-center flex-wrap justify-between">
+        {cluster.show &&
+          <Node key="cluster" type="cluster" options={options.cluster} data={data.cluster} />
+        }
+        {nodes.show && data.nodes &&
+          data.nodes.map((node) =>
+            <Node key={node.name} type="node" options={options.nodes} data={node} />)
+        }
+      </div>
+    </div>
+  );
+}

src/components/widgets/kubernetes/node.jsx

@@ -0,0 +1,60 @@
+import { FaMemory } from "react-icons/fa";
+import { FiAlertTriangle, FiCpu, FiServer } from "react-icons/fi";
+import { SiKubernetes } from "react-icons/si";
+import { useTranslation } from "next-i18next";
+
+import UsageBar from "./usage-bar";
+
+
+export default function Node({ type, options, data }) {
+  const { t } = useTranslation();
+
+
+  function icon() {
+    if (type === "cluster") {
+      return <SiKubernetes className="text-theme-800 dark:text-theme-200 w-5 h-5" />;
+    }
+    if (data.ready) {
+      return <FiServer className="text-theme-800 dark:text-theme-200 w-5 h-5" />;
+    }
+    return <FiAlertTriangle className="text-theme-800 dark:text-theme-200 w-5 h-5" />;
+  }
+
+  return (
+    <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap ml-4">
+      <div className="flex flex-row self-center flex-wrap justify-between">
+        <div className="flex-none flex flex-row items-center mr-3 py-1.5">
+          {icon()}
+          <div className="flex flex-col ml-3 text-left min-w-[85px]">
+            <div className="text-theme-800 dark:text-theme-200 text-xs flex flex-row justify-between">
+              <div className="pl-0.5">
+                {t("common.number", {
+                  value: data.cpu.percent,
+                  style: "unit",
+                  unit: "percent",
+                  maximumFractionDigits: 0
+                })}
+              </div>
+              <FiCpu className="text-theme-800 dark:text-theme-200 w-3 h-3" />
+            </div>
+            <UsageBar percent={data.cpu.percent} />
+            <div className="text-theme-800 dark:text-theme-200 text-xs flex flex-row justify-between">
+              <div className="pl-0.5">
+                {t("common.bytes", {
+                  value: data.memory.free,
+                  maximumFractionDigits: 0,
+                  binary: true
+                })}
+              </div>
+              <FaMemory className="text-theme-800 dark:text-theme-200 w-3 h-3" />
+            </div>
+            <UsageBar percent={data.memory.percent} />
+            {options.showLabel && (
+              <div className="pt-1 text-center text-theme-800 dark:text-theme-200 text-xs">{type === "cluster" ? options.label : data.name}</div>
+            )}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

src/components/widgets/kubernetes/usage-bar.jsx

@@ -0,0 +1,12 @@
+export default function UsageBar({ percent }) {
+  return (
+    <div className="mt-0.5 w-full bg-theme-800/30 rounded-full h-1 dark:bg-theme-200/20">
+      <div
+        className="bg-theme-800/70 h-1 rounded-full dark:bg-theme-200/50 transition-all duration-1000"
+        style={{
+          width: `${percent}%`,
+        }}
+      />
+    </div>
+  );
+}

src/components/widgets/longhorn/longhorn.jsx

@@ -0,0 +1,57 @@
+import useSWR from "swr";
+import { BiError } from "react-icons/bi";
+import { useTranslation } from "next-i18next";
+
+import Node from "./node";
+
+export default function Longhorn({ options }) {
+  const { expanded, total, labels, include, nodes } = options;
+  const { t } = useTranslation();
+  const { data, error } = useSWR(`/api/widgets/longhorn`, {
+    refreshInterval: 1500
+  });
+
+  if (error || data?.error) {
+    return (
+      <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+        <BiError className="text-theme-800 dark:text-theme-200 w-5 h-5" />
+        <div className="flex flex-col ml-3 text-left">
+          <span className="text-theme-800 dark:text-theme-200 text-xs">{t("widget.api_error")}</span>
+        </div>
+      </div>
+    );
+  }
+
+  if (!data) {
+    return (
+      <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+        <div className="flex flex-row self-center flex-wrap justify-between" />
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+      <div className="flex flex-row self-center flex-wrap justify-between">
+        {data.nodes
+          .filter((node) => {
+            if (node.id === 'total' && total) {
+              return true;
+            }
+            if (!nodes) {
+              return false;
+            }
+            if (include && !include.includes(node.id)) {
+              return false;
+            }
+            return true;
+          })
+          .map((node) =>
+            <div key={node.id}>
+              <Node data={{ node }} expanded={expanded} labels={labels} />
+            </div>
+          )}
+      </div>
+    </div>
+  );
+}

src/components/widgets/longhorn/node.jsx

@@ -0,0 +1,32 @@
+import { FiHardDrive } from "react-icons/fi";
+import { useTranslation } from "next-i18next";
+
+import UsageBar from "../resources/usage-bar";
+
+export default function Node({ data, expanded, labels }) {
+  const { t } = useTranslation();
+
+  return (
+    <>
+      <div className="flex-none flex flex-row items-center mr-3 py-1.5">
+        <FiHardDrive className="text-theme-800 dark:text-theme-200 w-5 h-5" />
+        <div className="flex flex-col ml-3 text-left min-w-[85px]">
+        <span className="text-theme-800 dark:text-theme-200 text-xs flex flex-row justify-between">
+          <div className="pl-0.5">{t("common.bytes", { value: data.node.available })}</div>
+          <div className="pr-1">{t("resources.free")}</div>
+        </span>
+          {expanded && (
+            <span className="text-theme-800 dark:text-theme-200 text-xs flex flex-row justify-between">
+            <div className="pl-0.5">{t("common.bytes", { value: data.node.maximum })}</div>
+            <div className="pr-1">{t("resources.total")}</div>
+          </span>
+          )}
+          <UsageBar percent={Math.round(((data.node.maximum - data.node.available) / data.node.maximum) * 100)} />
+        </div>
+      </div>
+      {labels && (
+        <div className="ml-6 pt-1 text-center text-theme-800 dark:text-theme-200 text-xs">{data.node.id}</div>
+      )}
+    </>
+  );
+}

src/components/widgets/widget.jsx

@@ -13,6 +13,8 @@ const widgetMappings = {
   unifi_console: dynamic(() => import("components/widgets/unifi_console/unifi_console")),
   glances: dynamic(() => import("components/widgets/glances/glances")),
   openmeteo: dynamic(() => import("components/widgets/openmeteo/openmeteo")),
+  longhorn: dynamic(() => import("components/widgets/longhorn/longhorn")),
+  kubernetes: dynamic(() => import("components/widgets/kubernetes/kubernetes")),
 };
 
 export default function Widget({ widget }) {