istio.io/content/docs/setup/kubernetes/platform-setup/openshift/index.md

title	description	weight	keywords
OpenShift	Instructions to setup an OpenShift cluster for Istio.	18	platform-setup openshift

Follow these instructions to prepare an OpenShift cluster for Istio.

By default, OpenShift doesn't allow containers running with user ID 0. You must enable containers running with UID 0 for Istio's service accounts:

{{< text bash >}} $ oc adm policy add-scc-to-user anyuid -z istio-ingress-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z default -n istio-system $ oc adm policy add-scc-to-user anyuid -z prometheus -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-egressgateway-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-citadel-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-ingressgateway-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-cleanup-old-ca-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-mixer-post-install-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-mixer-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-pilot-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-sidecar-injector-service-account -n istio-system $ oc adm policy add-scc-to-user anyuid -z istio-galley-service-account -n istio-system {{< /text >}}

The list above accounts for the default Istio service accounts. If you enabled other Istio services, like Grafana for example, you need to enable its service account with a similar command.

A service account that runs application pods needs privileged security context constraints as part of sidecar injection.

{{< text bash >}} $ oc adm policy add-scc-to-user privileged -z default -n {{< /text >}}

Check for SELINUX in this discussion with respect to Istio in case you see issues bringing up the Envoy.