Make node shell image configurable (#3249)

Signed-off-by: vshakirova <vshakirova@mirantis.com>

src/main/cluster.ts

@@ -34,6 +34,7 @@ import { VersionDetector } from "./cluster-detectors/version-detector";
 import { detectorRegistry } from "./cluster-detectors/detector-registry";
 import plimit from "p-limit";
 import { toJS } from "../common/utils";
+import { initialNodeShellImage } from "../common/cluster-store";
 
 export enum ClusterStatus {
   AccessGranted = 2,
@@ -745,4 +746,12 @@ export class Cluster implements ClusterModel, ClusterState {
   isMetricHidden(resource: ClusterMetricsResourceType): boolean {
     return Boolean(this.preferences.hiddenMetrics?.includes(resource));
   }
+
+  get nodeShellImage(): string {
+    return this.preferences.nodeShellImage || initialNodeShellImage;
+  }
+
+  get imagePullSecret(): string {
+    return this.preferences.imagePullSecret || "";
+  }
 }

src/main/shell-session/node-shell-session.ts

@@ -77,13 +77,16 @@ export class NodeShellSession extends ShellSession {
           }],
           containers: [{
             name: "shell",
-            image: "docker.io/alpine:3.13",
+            image: this.cluster.nodeShellImage,
             securityContext: {
               privileged: true,
             },
             command: ["nsenter"],
             args: ["-t", "1", "-m", "-u", "-i", "-n", "sleep", "14000"]
           }],
+          imagePullSecrets: [{
+            name: this.cluster.imagePullSecret,
+          }]
         }
       });
   }