----- Original Message ----- > From: "Itzik Brown" <itz...@mellanox.com> > To: firstname.lastname@example.org > Sent: Monday, May 21, 2012 9:07:10 AM > Subject: [vdsm] Running commands that requires root permissions in > before_vm_start hook > > Hi, > > I'm trying to run the following script in before_vm_start hook: > > #!/usr/bin/python > import subprocess > > args = ['brctl', 'addbr', 'net10'] > print("Running command: " + " ".join(args)) > p = subprocess.Popen(args, stdout=subprocess.PIPE) > > I get the following error: > add bridge failed: Operation not permitted > > From Red Hat Enterprise Virtualization 3.0 Documentation" > "Before VDSM is started on the hypervisor host. before_vdsm_start > hooks are executed as the user root, and do not inherit the > environment of the VDSM process." > > As I understand it there should be no problem if user root executes > this script. > When giving the vdsm user the right sudo permissions and adding sudo > to the command - it works. > > Is the documentation wrong or am I missing something?
I think it's a docs issue - IIRC everything should run as VDSM and sudo for privileged commands, with your RPM for the hook including additions for sudoers if required for new commands. > > Best regards, > Itzik > _______________________________________________ > vdsm-devel mailing list > email@example.com > https://fedorahosted.org/mailman/listinfo/vdsm-devel > _______________________________________________ vdsm-devel mailing list firstname.lastname@example.org https://fedorahosted.org/mailman/listinfo/vdsm-devel