Allow running a deployment inside a privileged container when using `docker` mode

[aureq]

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Issue details

When a customer uses a customer managed deployment agent in docker mode, each time a deployment has to be performed, a new docker container is created. However, this container is unprivileged. This is a problem if the user wants to run other services (like the Docker daemon) in a completely isolated mode.

For customer managed deployment agents, when running in docker mode, it would be great to be able to run Deployments containers in a privileged mode to cover this kind of scenario.

Affected area/feature

• customer managed deployment agent