Problem

Bamboo's Docker Runner feature encounters a number of Permission Denied errors when running tasks on a remote agent that is mounted on NFS with root squashing (default configuration).

Since most commands run in containers typically run under a root context, the root user is squashed to nfsnobody which has very limited permissions on the build working directory and temp.

Suggested Solution

Allow an option to tell Docker Runner to execute commands as the same UID/GUID of the user running the Bamboo agent, inside the container. Docker exec allows specifying a user context.

Workaround

Setup root squashing to the same UID/GUID as the user that runs the Bamboo agent for trusted clients using anonuid and anongid on the NFS export. E.g.

/mnt/sharedfolder 192.156.1.56(rw,sync,no_subtree_check,anonuid=1068,anongid=1068)

• https://linux.die.net/man/5/exports

Or setup your containers to have a user with a UID/GUID that matches your Bamboo remote agent and either su to it in any scripts or make it the default user for the image.