Fix Dashboard crash after exec into pod when using proxy (#2430)

* Fix Dashboard crash after exec into pod when using proxy

* Use on-disk temp rather than in-memory

src/deploy/alternative/kubernetes-dashboard-arm-head.yaml

@@ -100,12 +100,19 @@ spec:
           # If not specified, Dashboard will attempt to auto discover the API server and connect
           # to it. Uncomment only if the default does not work.
           # - --apiserver-host=http://my-address:port
+        volumeMounts:
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             path: /
             port: 9090
           initialDelaySeconds: 30
           timeoutSeconds: 30
+      volumes:
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard-head
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/alternative/kubernetes-dashboard-arm.yaml

@@ -98,12 +98,19 @@ spec:
           # If not specified, Dashboard will attempt to auto discover the API server and connect
           # to it. Uncomment only if the default does not work.
           # - --apiserver-host=http://my-address:port
+        volumeMounts:
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             path: /
             port: 9090
           initialDelaySeconds: 30
           timeoutSeconds: 30
+      volumes:
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/alternative/kubernetes-dashboard-head.yaml

@@ -100,12 +100,19 @@ spec:
           # If not specified, Dashboard will attempt to auto discover the API server and connect
           # to it. Uncomment only if the default does not work.
           # - --apiserver-host=http://my-address:port
+        volumeMounts:
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             path: /
             port: 9090
           initialDelaySeconds: 30
           timeoutSeconds: 30
+      volumes:
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard-head
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/alternative/kubernetes-dashboard.yaml

@@ -99,12 +99,19 @@ spec:
           # If not specified, Dashboard will attempt to auto discover the API server and connect
           # to it. Uncomment only if the default does not work.
           # - --apiserver-host=http://my-address:port
+        volumeMounts:
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             path: /
             port: 9090
           initialDelaySeconds: 30
           timeoutSeconds: 30
+      volumes:
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/recommended/kubernetes-dashboard-arm-head.yaml

@@ -123,6 +123,9 @@ spec:
         - name: kubernetes-dashboard-certs
           mountPath: /certs
           readOnly: true
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             scheme: HTTPS
@@ -134,6 +137,8 @@ spec:
       - name: kubernetes-dashboard-certs
         secret:
           secretName: kubernetes-dashboard-certs
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard-head
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/recommended/kubernetes-dashboard-arm.yaml

@@ -121,6 +121,9 @@ spec:
         - name: kubernetes-dashboard-certs
           mountPath: /certs
           readOnly: true
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             scheme: HTTPS
@@ -132,6 +135,8 @@ spec:
       - name: kubernetes-dashboard-certs
         secret:
           secretName: kubernetes-dashboard-certs
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/recommended/kubernetes-dashboard-head.yaml

@@ -123,6 +123,9 @@ spec:
         - name: kubernetes-dashboard-certs
           mountPath: /certs
           readOnly: true
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             scheme: HTTPS
@@ -134,6 +137,8 @@ spec:
       - name: kubernetes-dashboard-certs
         secret:
           secretName: kubernetes-dashboard-certs
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard-head
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:

src/deploy/recommended/kubernetes-dashboard.yaml

@@ -122,6 +122,9 @@ spec:
         - name: kubernetes-dashboard-certs
           mountPath: /certs
           readOnly: true
+          # Create on-disk volume to store exec logs
+        - mountPath: /tmp
+          name: tmp-volume
         livenessProbe:
           httpGet:
             scheme: HTTPS
@@ -133,6 +136,8 @@ spec:
       - name: kubernetes-dashboard-certs
         secret:
           secretName: kubernetes-dashboard-certs
+      - name: tmp-volume
+        emptyDir: {}
       serviceAccountName: kubernetes-dashboard
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations: