If you are running Rancher with no internet access or Rancher does not have access to DockerHub (i.e. docker.io) and Google Container Registry (i.e. gcr.io), then the pod infra container image and Kubernetes add-ons will not be installed. You will need to configure Kubernetes to point a private registry for being able to installing the Kubernetes add-ons and the pod infra container image.
Rancher expects the private registry to mirror DockerHub (i.e docker.io) and Google Container Registry (i.e. gcr.io).
When configuring Kubernetes, Rancher uses an image whose network/ipc namespaces in each pod will use.
# Located as a default value in the k8s templates
Image: gcr.io/google_containers/pause-amd64:3.0
The namespace/name:tag is expected to be consistent the images in the Rancher add-on templates.
The images below are the list of add-ons that are currently supported, you will need to check the Github repo for exact version and copy the exact version for each image.
# Located in the helm/tiller-deploy.yaml
image: <$PRIVATE_REGISTRY>/kubernetes-helm/tiller:<VERSION>
# Located in the dashboard/dashboard-controller.yaml
image: <$PRIVATE_REGISTRY>/google_containers/kubernetes-dashboard-amd64:<VERSION>
# Located in the heapster/heapster-controller.yaml
image: <$PRIVATE_REGISTRY>/google_containers/heapster:<VERSION>
# Located in the heapster/influx-grafana-controller.yaml
image: <$PRIVATE_REGISTRY>/kubernetes/heapster_influxdb:<VERSION>
image: <$PRIVATE_REGISTRY>/google_containers/heapster_grafana:<VERSION>