adding port-forward for containers in pods (#528)

* adding port-forward for containers in pods

address review comments

use more idiomatic approach for async code

move some files in advance of merge conflict with Lens restructure work

* Separate the port forward links in the UI (so they don't all spin when one link is clicked)

* minor fixes

* addressed review comments (replaced <p> with <div>, moved key attribute to proper element)

* fix lint issue

* removed extraneous <div> from pod container port details

Signed-off-by: Jim Ehrismann <jehrismann@mirantis.com>

src/renderer/components/+workloads-pods/pod-container-port.tsx

@@ -0,0 +1,54 @@
+import "./pod-container-port.scss"
+
+import React from "react";
+import { observer } from "mobx-react";
+import { t } from "@lingui/macro";
+import { Pod, IPodContainer } from "../../api/endpoints";
+import { _i18n } from "../../i18n";
+import { apiBase } from "../../api"
+import { observable } from "mobx";
+import { cssNames } from "../../utils";
+import { Notifications } from "../notifications";
+import { Spinner } from "../spinner"
+
+interface Props {
+  pod: Pod;
+  port: {
+    name?: string;
+    containerPort: number;
+    protocol: string;
+  }
+}
+
+@observer
+export class PodContainerPort extends React.Component<Props> {
+  @observable waiting = false;
+
+  async portForward() {
+    const { pod, port } = this.props;
+    this.waiting = true;
+    try {
+      await apiBase.post(`/pods/${pod.getNs()}/pod/${pod.getName()}/port-forward/${port.containerPort}`, {})
+    } catch(error) {
+      Notifications.error(error);
+    } finally {
+      this.waiting = false;
+    }
+  }
+
+  render() {
+    const { port } = this.props;
+    const { name, containerPort, protocol } = port;
+    const text = (name ? name + ': ' : '')+`${containerPort}/${protocol}`
+    return (
+      <div className={cssNames("PodContainerPort", { waiting: this.waiting })}>
+        <span title={_i18n._(t`Open in a browser`)} onClick={() => this.portForward() }>
+          {text}
+          {this.waiting && (
+            <Spinner />
+          )}
+        </span>
+      </div>
+    )
+  }
+}