I'm currently working on a prototype of SSO based on GitHub and a few issues arose:
We are not able to use the permission strategy which determines the access rights based on the read/write permission to a project as the Jenkins-plugin is not able to resolve the link between Jenkins-jobs and GitHub-repositories. Instead I would propose to use a role-based approach using https://wiki.jenkins.io/display/JENKINS/Role+Strategy+Plugin. In this case we would have three roles: Anonymous, Administrator and Committer. While everybody would authenticate using their regular GitHub account, the role assignment would have to happen manually. Considering that the amount of administrators and committers doesn't change that frequently, this shouldn't be too much of an issue - auto populating the status is not possible unfortunately. Reason for splitting Administrators and Committers into two separate roles has a security reason. At the moment, we're using Chris Oliviers GitHub credentials to populate the commit status. If all committers would gain full admin rights, they would have access to these credentials. Chris is not fine with this approach and would like to limit the amount of people with access to his credentials as much as possible. In order to address his concerns, I propose to add Chris to the committer as well as to the admin role, while all other committers will only receive the committer role without read access to the credentials. In a later email, I will make a proposal for the detailed committer role rights. You can check all available options at https://wiki.jenkins.io/display/JENKINS/Matrix-based+security. All people who have access to the underlying AWS account would be granted the Administrator role with full access. At the moment, this would be Meghna Baijal, Gautam Kumar and myself. An alternative solution would be to create a bot account specifically for MXNet CI and use its credentials instead of Chris'. This account requires write permission to the repository, but would give us the advantage that these credentials would be shared within the committers and thus making the restrictions regarding credentials obsolete (and Chris would be happy not the see his face within every single PR :P ). I've asked around and received the feedback from multiple people that Apache Infra does not want to grant bot accounts write permission to a repository, but I would like to confirm back considering that AppVeyor, for example, has a bot account with write permission. I would like to check back with a mentor and create an Apache Infra ticket to request details and permission. I would propose to take both approaches at the same time, meaning we can start with Chris in the committer AND admin role while trying to get permission for a bot account in the meantime. wdyt? On Fri, Jan 5, 2018 at 8:21 PM, Chris Olivier <cjolivie...@gmail.com> wrote: > I am fine without a vote unless a vote is required? Any objections, > anyone? You're sort of adding functionality here, not changing or > restricting... We can always change to Apache later. > > On Fri, Jan 5, 2018 at 11:18 AM, Marco de Abreu < > marco.g.ab...@googlemail.com> wrote: > > > I'd be in favour of GitHub. Shall we open a vote or would you like me to > > create a POC with GitHub first and afterwards we can check if that's > > enough? > > > > -Marco > > > > On Fri, Jan 5, 2018 at 8:13 PM, Chris Olivier <cjolivie...@gmail.com> > > wrote: > > > > > Apparently Apache supports OATH, so I am open to either. > > > Good idea for the docker thing. > > > > > > On Fri, Jan 5, 2018 at 11:02 AM, Marco de Abreu < > > > marco.g.ab...@googlemail.com> wrote: > > > > > > > GitHub SSO allows the neat feature that login and permission can be > > > > selected depending on the access rights a user has to a project. > > Somebody > > > > with write access (committers) would be get different permissions > than > > > > somebody with only read access. > > > > > > > > We could check back with Apache for SSO, but this would involve > Apache > > > > infra. We could put it up to a vote whether to use GitHub or Apache > > SSO. > > > > > > > > In order to reproduce a build failure we have been thinking about > > > changing > > > > the ci_build.sh in such a way that it can be run manually without > > > Jenkins. > > > > The setup I took over binds the Jenkins work directory into the > docker > > > > containers and uses a few hacks which are hard to reproduce locally. > We > > > > plan to reengineer this script to make it easier to run manually. > > > > But making the AMI public is a good idea! We plan to make the whole > > > > infrastructure code (based on Terraform) completely public - at the > > > moment > > > > it's in a private repository as it contains credentials, but they > will > > be > > > > moved to KMS soon. It would definitely be a good approach to just > > supply > > > > the AMI so everybody could recreate the environment in their own > > account. > > > > > > > > -Marco > > > > > > > > Am 05.01.2018 7:51 nachm. schrieb "Chris Olivier" < > > cjolivie...@gmail.com > > > >: > > > > > > > > Well, login to the Jenkins server, I would imagine. > > > > > > > > github or Apache SSO (does Apache support OAUTH?) seems like a good > > idea > > > as > > > > long as there's a way to not let everyone with a github account log > in. > > > > > > > > Access to actual slave machines could be more restricted, I imagine. > > > > > > > > Eventually, a public current AMI for a build slave would be good in > > order > > > > to reproduce build or test problems that can't be reproduced locally. > > > > > > > > wdyt? > > > > > > > > > > > > > > > > On Fri, Jan 5, 2018 at 10:41 AM, Marco de Abreu < > > > > marco.g.ab...@googlemail.com> wrote: > > > > > > > > > Would it be an acceptable solution if we add SSO or do you also > want > > > > access > > > > > to the actual AWS account and all machines? > > > > > > > > > > Yes, the build jobs are automatically getting created for new > > branches. > > > > > > > > > > -Marco > > > > > > > > > > Am 05.01.2018 7:35 nachm. schrieb "Marco de Abreu" < > > > > > marco.g.ab...@googlemail.com>: > > > > > > > > > > I totally agree, this is not the way it should work in an Apache > > > Project. > > > > > It's running on an isengard account, meaning it is only accessible > > for > > > > > Amazon employees. The problem is that a compromised account could > > cause > > > > > damage up to 170,000$ per day. There are alarms in place to notice > > > those > > > > > cases, but we still have to be very careful. These high limits have > > > been > > > > > chosen due to auto scaling being added within the next week's. > > > > > > > > > > I'd be happy to introduce a committer into the CI process and all > the > > > > > necessary steps as well as granting them permission. The only > > > restriction > > > > > being that it has to be and Amazon employee and access to console, > > > master > > > > > and slave only being possible from the Corp network. > > > > > > > > > > There is no open ticket. What would you like to request? > > > > > > > > > > -Marco > > > > > > > > > > > > > > > Am 05.01.2018 7:22 nachm. schrieb "Chris Olivier" < > > > cjolivie...@gmail.com > > > > >: > > > > > > > > > > Like John and other mentors were saying, it's not proper for CI to > > be a > > > > > closed/inaccessible environment. Is it running on an Isengard > > account > > > or > > > > > in PROD or CORP or just generic EC2? I think that we should remedy > > > this. > > > > > It's very strange that no committers have access at all. Is there > a > > > > ticket > > > > > open to IPSEC? > > > > > > > > > > On Fri, Jan 5, 2018 at 10:17 AM, Marco de Abreu < > > > > > marco.g.ab...@googlemail.com> wrote: > > > > > > > > > > > Hello Chris, > > > > > > > > > > > > At the moment this is not possible due Amazon AppSec (Application > > > > > security) > > > > > > restrictions which does not permit user data and credentials on > > these > > > > > > machines. > > > > > > > > > > > > I have been thinking about adding single sign on bound to GitHub, > > but > > > > we > > > > > > would have to check back with AppSec. > > > > > > > > > > > > Is the reason for your request still the ability to start and > stop > > > > > running > > > > > > builds? > > > > > > > > > > > > Best regards, > > > > > > Marco > > > > > > > > > > > > Am 05.01.2018 7:11 nachm. schrieb "Chris Olivier" < > > > > cjolivie...@gmail.com > > > > > >: > > > > > > > > > > > > Marco, > > > > > > > > > > > > Are all committers able to get login access to the Jenkins > Server? > > > If > > > > > not, > > > > > > why? > > > > > > > > > > > > -Chris > > > > > > > > > > > > > > > > > > > > >
