devel November 2014

devel@lists.centos.org

55 participants
54 discussions

ksplice and CentOS
by Karanbir Singh 25 Sep '25

25 Sep '25

hi guys, lots of people on this list are keen on contributing to the CentOS effort - and one place where we could, as a group of people, make a massive difference is being able to deliver a ksplice upgrade model. A couple of people have started in silo's to try and get something together but I feel it might be a good time to try and see if we can do somethng as a group. Do we have people on the list who find the idea of rebootless kernel upgrades interesting ? Is there some desire to try and make that happen within the CentOS Ecosystem ? - KB

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anaconda dependency calculation?
by Nicholas Byrne 04 Aug '25

04 Aug '25

Hi all, I'm trying to find a tool that calculates all dependencies for a specific package or group of packages for use with CentOS 5 (beta) with the intention of putting together a custom single CD build of CentOS 5. With CentOS 4 i used a python script that used the hdrlist module to find all dependencies which borrowed code from a number of sources. I've looked at yumdownloader and how it checks dependencies (using the --resolve option) but if i pass it the list of packages defined in say the Base and the Core yum groups which generally form an absolute minimal install i end up with about 200 packages. If i do a custom install (using beta 1 disks) and deselect everything i end up with over 300 packages. So i'm guessing anaconda calculates dependencies in a slightly different way, can anyone point me to files/code where i should be looking to find out? Thanks very much in advance for help Nick This e-mail is the property of Quadriga Worldwide Ltd, intended for the addressee only and confidential. Any dissemination, copying or distribution of this message or any attachments is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Messages sent to and from Quadriga may be monitored. Quadriga cannot guarantee any message delivery method is secure or error-free. Information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. We do not accept responsibility for any errors or omissions in this message and/or attachment that arise as a result of transmission. You should carry out your own virus checks before opening any attachment. Any views or opinions presented are solely those of the author and do not necessarily represent those of Quadriga.

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forums + portal for {lang}.centos.org sites
by Karanbir Singh 16 Aug '24

16 Aug '24

Hi, Earlier in the evening today Ralph, Fabian and I had a chat about the present state of the language subsites. This email sort of summarises the main issue ( s/w ). We seem to have run into a slight technical hitch with punbb/fluxbb. They dont support LDAP as a backend. And we had decided a few months back that all new rollouts must have ldap backend so we can rollin CentOS-DS / openldap based backend. So we need to look at alternatives, and since the primary focus of these international sites is going be forums : Here is a shortlist ( if there is anything else that people are aware of, please add to this list ) - phpBB - SMF - Fudforum - phorum - fluxbb Requirements: - Must be able to scale ( couple of hundred thousand msgs ) - Must be able to handle ldap auth ( if it cant, whats involved in writing the ldap-auth portion ) - Must address the specific requirements raised by the present www.centos.org forum users ( Can you please fill this section in ? ) - Must support all languages we need ( pure utf8 support would be good ) - Secure - Skin'able Nice to have: - Capable of running multiple instances from a single deployment - responsive community :D Things we will need to do: - Decide on what s/w to use. - Give the ArtWork people enough time to get the look & feel sorted. - Migrate newbb forums from www.centos.org to $system ( hey, english is a language too :D ). - Migrate fr.centos.org into the final s/w - setup {de/es/ja/it/pt_br}.centos.org Actions: Ralph and Fabian are going to work on setting up a test ldap server, once that is online we will then start by installing into our test-vm-farm the various s/w to eval them. If anyone would like to help, please feel free to jump right in. I'll setup a wiki page for this issue, which might be a good place to track progress. -- Karanbir Singh : http://www.karan.org/ : 2522219@icq

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cbs feature req: building embargoed content
by Karanbir Singh 12 Mar '15

12 Mar '15

hi guys, we need a way to build embargo'd content like reimzul's priv-build, that does not make stuff public till a specific date ( the actual push to public can be manual ); how would we achieve this on cbs ? I guess the git stuff is easier since it can just be a scratch build from srpm and people need not push the git content back to git.centos.org till embargo expiry. - KB -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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CentOS Bug Tracker and ABRT
by Jakub Filak 04 Feb '15

04 Feb '15

Hello everyone, I want to briefly introduce myself. I am a Red Hat employee working on ABRT[1]. We have recently added support for CentOS on the ABRT server[2] and we would like continue in these integration efforts. First of all, I want to submit a pair of patches improving ABRT's UX on CentOS: - do not offer users to report to Red Hat Portal - offer users to send an email to upstream - stop wasting of resources by running sos, because its output is useless for CentOS users In the near future, we would like to integrate ABRT with CentOS Bug Tracker in the same way as ABRT integrates with Red Hat Bugzilla[3]. We are done with the analysis phase[4] and, now, we are working on a testsuite[5]. Unfortunately, MantisBT misses more advanced searching what prevents us from implementing a tool similar to one we have for Bugzilla. At least we need to search by DUPHASH (an unique identifier of a crash, something like tag). Would you be willing to run a MantisBT plugin adding the things we need, if we develop it? Best regards, Jakub http://wiki.centos.org/JakubFilak 1: https://github.com/abrt 2: https://abrt.fedoraproject.org/ 3: https://github.com/abrt/libreport/issues/272 4: https://github.com/abrt/libreport/wiki/MantisBT 5: https://github.com/abrt/abrt/tree/reporter-mantisbt

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Image building features enabled in CBS
by Ian McLeod 14 Jan '15

14 Jan '15

Hello all, Thanks to Thomas' (alphacc) work last Friday, we now have the image building features enable on the CBS koji instance. I'll give a very brief summary of how to use it. The general form of the koji command is: koji -p cbs image-build <image_name> <image_version> <build_target> <install_tree_url> <arch> --release <image_release> --distro <distro_name_version> --kickstart <local_kickstart_file> --format <format_type> --disk-size <disk_size_in_gb> --repo <repo_url> (optional) --scratch (optional) --nowait (optional) The image build must be given a name, version and release. These function in much the same way as they do in RPM. In particular, the name must be added as an allowed package in the output tag for the <build_target> provided on the command line. You can specify more than one --format option. The most useful options are: 'raw-xz' - xz compressed raw file 'qcow2' - qcow2 'rhevm-ova' - A single file OVF image (aka OVA) for RHEV-M 'vsphere-ova' - An OVA for vSphere/VMWare 'docker' - A docker base image, suitable for "docker load" Any "url" or "repo" lines in your input kickstart file will be removed. The "url" line is replaced by whatever <install_tree_url> you give above. You can, optionally, provide additional repos to Anaconda by giving one or more "--repo <url>" arguments. Until we sort out how exactly we want kickstart files store in RCM (likely git.centos.org) we will be restricted to doing scratch builds, indicated with a "--scratch" option above. Here is the exact command I used to do initial testing of the feature: koji image-build \ centos-7-imcleod-test 1 atomic7-el7.centos \ http://mirror.centos.org/centos/7/os/x86_64/ x86_64 \ --release=1 \ --distro RHEL-7.0 \ --kickstart=/tmp/RHEL7.auto \ --format=qcow2 \ --scratch \ --nowait \ --disk-size=10 The "RHEL7.auto" kickstart is the minimal/JEOS RHEL7 kickstart from Oz, available here: https://raw.githubusercontent.com/clalancette/oz/master/oz/auto/RHEL7.auto In order for this to work I had to ask alphacc to add me to the "image" permission in the CBS. I then had to add the centos-7-imcleod-test "package" to the "atomic7-testing" tag (which is the destination for the "atomic7-el7.centos" build target). The command to do this was: koji add-pkg --owner=imcleod atomic7-testing centos-7-imcleod-test Please follow up with questions, thoughts, RFEs, etc. -Ian

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Re: [CentOS-devel] When anyone has plan to have this patch to CentOS 6.5?
by Subscribe Ling 16 Dec '14

16 Dec '14

I have opened a bug here and hope get response ASAP. https://bugzilla.redhat.com/show_bug.cgi?id=1154747 Thank you, *Johnny!* *Paul*

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RFC: OCaml SIG
by Jon Ludlam 13 Dec '14

13 Dec '14

Hi all, I'd like to propose a new SIG for the OCaml language. OCaml is an industrial strength programming language supporting functional, imperative and object-oriented styles. It has in recent years seen a marked increase in development activity, particularly in the compiler itself [1], core libraries [2] and developer tools [3]. Many of these newer libraries and features are already dependencies of a number of large upstream projects [4]. The version of OCaml in CentOS 6 is quite old (3.11.2, released in Jan 2010), and even that in CentOS 7 is fairly old (4.00.1, released in October 2012). I see the OCaml SIG providing the current stable compiler (4.02.1 at time of writing), and a selection of useful libraries and developer tools. This could then be used as a basis for other applications or SIGs to build upon - for example, it would make CentOS a good platform for building Unikernels [5] and it would be helpful in getting the Xapi Project suite of daemons [4] into one of the virtualisation/cloud SIGs. We actually already have a number of specs that are built for CentOS 6 which could make a good starting point [6]. A number of people have already agreed that they are interested and may be able to help (all CC'd): >From OCaml Labs (http://www.cl.cam.ac.uk/projects/ocamllabs/) - Anil Madhavapeddy - Thomas Gazagnaire >From Jane Street (https://www.janestreet.com/) - Yaron Minsky - Dominick LoBraico >From Citrix (https://www.citrix.com/) - Me - Euan Harris >From OCamlPro (http://www.ocamlpro.com/) - Louis Gesbert Comments? Jon [1] GADTs, record disambiguation, PPX extensions, immutable strings, etc. [2] ocaml-ctypes, Jane Street Core, the openmirage.org suite of libraries, etc. [3] opam, merlin, utop, etc. [4] https://github.com/xapi-project and http://ocsigen.org/ [5] http://queue.acm.org/detail.cfm?id=2566628 [6] https://github.com/xenserver/buildroot

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A project calendar
by Karanbir Singh 11 Dec '14

11 Dec '14

Hi There is quite a lot of stuff going on and not all of it is easily visible to everyone. The way to perhaps address that is to setup a project calendar that people can sync against and look at regularly. And more win if we can have it slightly open ended, allowing people / projects / sig's to contribute events into that cal. To that extent Stephen Smoogen introduced me to Pierre-Yves Chibo who runs the fedocal effort, and they have graciously agreed to set something up for CentOS as well. Stephen I know is on this list already, I've requested Pierre to join ( he might have done so already ). Firstly looking for comments on the idea / plan - and then for options on implemention, publishing and consumption of the calendar. Regards -- Karanbir Singh, Project Lead, The CentOS Project +44-207-0999389 | http://www.centos.org/ | twitter.com/CentOS GnuPG Key : http://www.karan.org/publickey.asc

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Switching to centralized authentication for centos.org infra (aka FAS vs IPA)
by Xavier Lamien 02 Dec '14

02 Dec '14

Greetings folks, As the principal FAS upstream, I would like to help you guys out making - as much as possible - (the right?) move by having the right information. First of all, let's start by a short FAS introduction. FAS has been designed to be community oriented by providing to the community a way to operate by itself through teams management (i.e group membership/management). As a result, our web interface has to be more than just an administrative interface to manage users & groups like other does. I recommend to go read more about it at https://admin.fedoraproject.org/accounts/about before go further. While keeping the openness, we also added: 1. A plugin Interface which let you add any new feature Plugin we had developed: * asterisk (no longer in prod however the plugin still is maintain) * yubikey (some of our group requires their members to have a key to access bound hosts) * OTP 2 factor auth (in a branch) 2. A non-standard API (current master) which let registered people and/or 3rd parties (from login mechanism) to read-only from FAS. Next is, my feedback after reviewed the wiki page and previous msg: >> project URL The project is mainly active on github (fedorahosted.org has been set as backup) v2: https://github.com/fedora-infra/fas v3.0: https://github.com/fedora-infra/fas/tree/FAS_3.0 >> packages available natively in the distro We do provide rpm's for rhel (e.g. http://infrastructure.fedoraproject.org/6Server/x86_64/fas-0.10.0-5.el6.noa… ) FAS v3 package will be in distro as it will be no Fedora project specific. >> multi-master replication Is this our we can replicate FAS from a master image? I really didn't get that one. If someone could explain it to me, that would be great. >> kerberos support: Not supported at this time. We do think of it for a v3.xx though. But it's not in my priority list unless someone is interesting to work on it. >> LDAP support: FAS v2: no. FAS v3.2: yes however, the LDAP support will be for group and people management. We will keep the DB as FAS is not about user and group management only. >> It's more or less a "Users CMDB" and cron jobs/scripts are creating/removing/modifying users/groups locally on each managed system. Naa, we have a fas-client which actually does the job to synchronize accounts on hosts. fas-client has been cron'd as the v2 is a non-daemon tools. We do have a daemon option though that listen to fedmsg and update hosts on demand. However, we set up a push-mode into Fedora infra. >> Mainly written to discuss with the fedmsg bus, and so targetting all Fedora Applications FAS has not been written to talk to 3rd parties (as stated in introduction). fedmsg cames few years after FASv2 launch. fedmsg is for FAS just another notification mechanism. >> Written for one project It has been the case for quite a while before I started work on FAS. For the record, I maintain the RPM Fusion infra and are using FAS there as well. even though this is related to fedora project, RPM Fusion are not providing the same level of services and doesn't have the same team structure (we don't use license agreement feature, nor asterisk's one, nor bugzilla feature atm). >> but we are working on a new fas 3 version that will use flask. Naa.. FAS 3 is a pyramid app. >> I guess it would be easier for everybody too, as just for today I've read that FAS3 would be in fact based on IPA so not on the actual FAS setup Nope, it will not rely on FreeIPA as FreeIPA doesn't comply with our need as stated in introduction. However, we may look at their kerberos and directory server implementation as a plugin for FAS. If you have any question which are not answered here, please feel free to ask. Also, as Kevin said, the v3 is being writing and will come up with lot of features so question here are much appreciate ;) - Xavier

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devel November 2014