fix animation and de-register pods

.travis.yml

@@ -1,7 +1,11 @@
 language: node_js
 node_js:
   - '6'
+python:
+  - '3.5'
 before_script:
   - npm install -g eslint
+  - pip3 install flake8
 script:
   - cd app && eslint src
+  - flake8

app.py

@@ -11,6 +11,7 @@ import logging
 import os
 import requests
 import datetime
+import time
 import tokens
 
 from flask import Flask, redirect
@@ -99,6 +100,9 @@ def index():
     for entry in os.listdir('static/build'):
         if entry.startswith('app'):
             app_js = entry
+            if app.debug:
+                # cache busting for local development
+                app_js += '?_={}'.format(time.time())
             break
     return flask.render_template('index.html', app_js=app_js)
 
@@ -133,7 +137,7 @@ def generate_mock_pod(index, i, j):
             status['containerStatuses'] = [{'ready': False, 'state': {'waiting': {'reason': 'CrashLoopBackOff'}}}]
         elif j % 7 == 0:
             status['containerStatuses'] = [{'ready': True, 'state': {'running': {}}, 'restartCount': 3}]
-    pod = {'name': '{}-{}'.format(names[hash_int((i + 1) * (j + 1)) % len(names)], j), 'namespace': 'kube-system' if j < 3 else 'default', 'labels': labels, 'status': status, 'containers': containers}
+    pod = {'name': '{}-{}-{}'.format(names[hash_int((i + 1) * (j + 1)) % len(names)], i, j), 'namespace': 'kube-system' if j < 3 else 'default', 'labels': labels, 'status': status, 'containers': containers}
     return pod
 
 
@@ -146,9 +150,12 @@ def generate_mock_cluster_data(index: int):
             labels['master'] = 'true'
         pods = []
         for j in range(hash_int((index + 1) * (i + 1)) % 32):
+            if j % 17 == 0 and int(time.time() / 10) % 2 == 0:
+                pass
+            else:
                 pods.append(generate_mock_pod(index, i, j))
         nodes.append({'name': 'node-{}'.format(i), 'labels': labels, 'status': {'capacity': {'cpu': '4', 'memory': '32Gi', 'pods': '110'}}, 'pods': pods})
-    unassigned_pods = [generate_mock_pod(index, 0, index)]
+    unassigned_pods = [generate_mock_pod(index, 11, index)]
     return {
         'api_server_url': 'https://kube-{}.example.org'.format(index),
         'nodes': nodes,

app/src/app.js

@@ -13,7 +13,7 @@ export default class App {
         } else {
             this.filterString = ''
         }
-        this.seenPods = {}
+        this.seenPods = new Set()
         this.desaturationFilter = new PIXI.filters.ColorMatrixFilter()
         this.desaturationFilter.desaturate()
     }
@@ -122,7 +122,7 @@ export default class App {
     }
 
     animatePodCreation(originalPod, globalX, globalY) {
-        const pod = new Pod(originalPod.pod, this.tooltip, null)
+        const pod = new Pod(originalPod.pod, null, this.tooltip)
         pod.draw()
         const targetPosition = new PIXI.Point(globalX, globalY)
         const angle = Math.random()*Math.PI*2
@@ -160,10 +160,19 @@ export default class App {
         this.stage.addChild(pod)
     }
     update(clusters) {
+        const podKeys = new Set()
         this.viewContainer.removeChildren()
-        var y = 0
+        let y = 0
-        for (var cluster of clusters) {
+        for (const cluster of clusters) {
-            var clusterBox = new Cluster(cluster, this.tooltip)
+            for (const node of cluster.nodes) {
+                for (const pod of node.pods) {
+                    podKeys.add(cluster.api_server_url + '/' + pod.namespace + '/' + pod.name)
+                }
+            }
+            for (const pod of cluster.unassigned_pods) {
+                podKeys.add(cluster.api_server_url + '/' + pod.namespace + '/' + pod.name)
+            }
+            const clusterBox = new Cluster(cluster, this.tooltip)
             clusterBox.draw()
             clusterBox.x = 0
             clusterBox.y = y
@@ -174,11 +183,16 @@ export default class App {
 
         let i = 0
         const that = this
-        const firstTime = Object.keys(this.seenPods).length == 0
+        const firstTime = this.seenPods.size == 0
         for (const key of Object.keys(ALL_PODS)) {
-            if (!this.seenPods[key]) {
+            if (!podKeys.has(key)) {
+                // pod was deleted
+                delete ALL_PODS[key]
+                this.seenPods.delete(key)
+            } else if (!this.seenPods.has(key)) {
+                // pod was created
+                this.seenPods.add(key)
                 const pod = ALL_PODS[key]
-                this.seenPods[key] = pod
                 const globalPos = pod.toGlobal({x: 0, y: 0})
                 if (!firstTime && i < 10) {
                     window.setTimeout(function() {

app/src/node.js

@@ -83,7 +83,7 @@ export default class Node extends PIXI.Graphics {
         var py = 20
         for (const pod of this.node.pods) {
             if (pod.namespace != 'kube-system') {
-                const podBox = Pod.getOrCreate(pod, this.cluster, this.tooltip) //new Pod(pod, this.tooltip)
+                const podBox = Pod.getOrCreate(pod, this.cluster, this.tooltip)
                 podBox.x = px
                 podBox.y = py
                 nodeBox.addChild(podBox.draw())
@@ -99,7 +99,7 @@ export default class Node extends PIXI.Graphics {
         py = 100
         for (const pod of this.node.pods) {
             if (pod.namespace == 'kube-system') {
-                const podBox = Pod.getOrCreate(pod, this.cluster, this.tooltip) //new Pod(pod, this.tooltip)
+                const podBox = Pod.getOrCreate(pod, this.cluster, this.tooltip)
                 podBox.x = px
                 podBox.y = py
                 nodeBox.addChild(podBox.draw())

app/src/pod.js

@@ -5,9 +5,10 @@ export const ALL_PODS = {}
 
 export class Pod extends PIXI.Graphics {
 
-    constructor(pod, tooltip, cluster) {
+    constructor(pod, cluster, tooltip) {
         super()
         this.pod = pod
+        this.cluster = cluster
         this.tooltip = tooltip
         this.tick = null
         this._progress = 1
@@ -58,7 +59,7 @@ export class Pod extends PIXI.Graphics {
             existingPod.clear()
             return existingPod
         } else {
-            return new Pod(pod, tooltip)
+            return new Pod(pod, cluster, tooltip)
         }
     }