To run nginx as a non root user in GKE – nginxinc/nginx-unprivileged:alpine-slim – on privileged port 80

https://hub.docker.com/r/nginxinc/nginx-unprivileged

To run nginx as a non root user: nginxinc/nginx-unprivileged:alpine-slim: privileged port 80

https://hub.docker.com/r/nginxinc/nginx-unprivileged