Enable privileged mode for Runner installed on Kubernetes
Description
The Runner installed using GitLab Kubernetes integration doesn't have privileged mode enabled. This prevents the runner to execute some commands like docker build
.
Since one of the main goals of the runner is to provide support for Auto DevOps, and this requires privileged mode, we cannot achieve our goal in this way.
Proposal
We should enable privileged mode for Runners installed using Kubernetes integration, and make users aware of the possible security implications, with documentation on how to "secure" the installation in case the scenario requires it.