(dev-v2.6-archive) Remove additional image volume mount support

(partially cherry picked from commit 01463307a6)

packages/rancher-istio/charts/templates/istio-install-job.yaml

@@ -42,11 +42,6 @@ spec:
             mountPath: /app/overlay-config.yaml
             subPath: overlay-config.yaml
           {{- end }}
-          {{- if .Values.installer.releaseMirror.additionalIstioImage.enabled }}
-          - name: {{ .Values.installer.releaseMirror.additionalIstioImage.volumeMountName }}
-            mountPath: /opt/istio-releases/{{ .Values.installer.releaseMirror.additionalIstioImage.tag }}/istio-{{ .Values.installer.releaseMirror.additionalIstioImage.tag }}-linux-amd64.tar.gz
-            subPath: istio-{{ .Values.installer.releaseMirror.additionalIstioImage.tag }}-linux-amd64.tar.gz
-          {{- end }}
       volumes:
         - name: config-volume
           configMap:
@@ -56,9 +51,6 @@ spec:
           configMap:
             name: istio-installer-overlay
         {{- end }}
-{{- if .Values.installer.releaseMirror.additionalIstioImage.enabled }}
-{{ toYaml .Values.installer.releaseMirror.additionalIstioImage.volumes | indent 8 }}
-{{- end }}
       serviceAccountName: istio-installer
       securityContext:
         runAsUser: 101

packages/rancher-istio/charts/values.yaml

@@ -11,17 +11,6 @@ installer:
   ##for airgap setups. Setting releaseMirror.enabled to false means istio will call externally to github to fetch the required assets.
   releaseMirror:
     enabled: false
-    ##If the image you need is not packaged with the rancher/istio-installer, create a volume mount with the istio-{{ .Values.installer.additionalIstioImage.tag }}-linux-amd64.tar.gz
-    ##file in it and set the additionalIstioImage values to connect to the volume prior to installing/upgrading your rancher-istio chart.  
-    additionalIstioImage:
-      enabled: false
-      volumeMountName: rancher-istio-additional-image
-      volumes:
-        - name: rancher-istio-additional-image
-          persistentVolumeClaim:
-            claimName: rancher-istio-additional-image
-            readOnly: false
-      tag: 1.10.4
       
   ##Set the secondsSleep to run a sleep command `sleep <secondsSleep>s` to allow time to exec into istio-installer pod for debugging
   debug: