August 2018 - openSUSE Kubic - openSUSE Mailing Lists

[opensuse-kubic] Snapshot20180829
by J. S. Evans 31 Aug '18

31 Aug '18

Sorry for the newbie questions but... Snapshot20180829 is out but it looks to be almost exactly the same as snapshot Snapshot20180820. Is this correct? Jason -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

2 1

[opensuse-kubic] Kubic Project update progress weekly meetings
by Rafael Fernández López 28 Aug '18

28 Aug '18

Hello, I'm happy to announce that the Kubic Project status update meetings will happen every Tuesday at 17:00 CEST. The meeting will happen at chat.freenode.net, on #kubic IRC channel. Cheers, Rafa.

2 2

[opensuse-kubic] Weekly meetings about Kubic progress
by Rafael Fernández López 28 Aug '18

28 Aug '18

Hello, I'd like to start the discussion on when to set the weekly meetings for the Kubic progress and for syncing efforts and goals. * What's the expectation on the medium of the meeting? * IRC * Voice If we choose IRC, these meetings can be saved and we can keep history over them; if we choose Voice, it would be great to take minutes notes and also keep them as history. As for the day, I don't have a very tight schedule so I think others can propose. -- Cheers, Rafa.

5 7

[opensuse-kubic] Highly Experimental VM Images Available
by Richard Brown 26 Aug '18

26 Aug '18

Hi All, As the subject says, there are now some highly experimental disk images available for Kubic They're built in OBS in the devel:kubic:images:experimental project https://build.opensuse.org/project/show/devel:kubic:images:experimental Please read and understand the description of that repository before diving in and playing with the images. The main reason for these warnings are as follows - The images are 100% not tested - The images are not released as part of the Tumbleweed release process, so there is always the risk of a mismatch between the images and 'official' Tumbleweed/Kubic - The images are known to have some discrepancies from official Kubic - for example the partitioning is known to be different but cannot be corrected due to limitations of our image building tooling. I hope they're helpful but care should be made to avoid us running around in circles hunting bugs which only exist in these images. So if you find a bug with these images, please try and reproduce it with the official Kubic ISO media. The image names relate to both the system role and container runtime in use - MicroOS images are designed to be standalone container hosts, kubeadm images should be usable to make kubeadm clusters using the guide on kubic.opensuse.org. Both cri-o and docker flavours are available. There are a number of build targets for the Project, and they require some additional explanation images - https://download.opensuse.org/repositories/devel:/kubic:/images:/experiment… These are built against official, released, Tumbleweed snapshots. At time of writing they are 100% known to be BROKEN because Tumbleweed doesn't contain the changes needed to make them work right. For example, the images called 'cri-o' contain docker ;) images_ARM - https://download.opensuse.org/repositories/devel:/kubic:/images:/experiment… Same as above, just for ARM images_devel_kubic - https://download.opensuse.org/repositories/devel:/kubic:/images:/experiment… These are built against the untested, unreleased devel:kubic Project. At time of writing these are the best images because devel:kubic contains everything needed by the images. They'll be most likely to break going forward, but for now they're the best images to play with until the ones in Images get working. images_devel_kubic_ARM - https://download.opensuse.org/repositories/devel:/kubic:/images:/experiment… Same as above, just for ARM. Enjoy, and happy hacking -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

1 0

[opensuse-kubic] Cards to be refined on the Kubic Project board
by Rafael Fernández López 17 Aug '18

17 Aug '18

Hello all, I have created some cards in a new column "To be refined". The idea is to settle some requirements we need in order to be feature-complete as CaaS Platform is today, but keeping in mind the most important tasks that need to be done in order to validate the new architecture, as well as identify as soon as possible hazards and uncertainties that we might hit at some point. Please, feel free to modify, comment or add new cards to that column. I'd like to keep this column until next Friday -- after that we can move all cards to the "To Do" column and delete this column. I've taken the "Init container" card and started to work on it (so it's on the "Doing" column), but feel free to also comment on that one if needed. In general, I added the "Platform" label to all these cards, which means platform basic pieces to be feature-paired to some extent to CaaS Platform but with the alternative architecture. You can find also an "On Hold" label that I have used to mark tasks that can wait a little before we have something that works and can build upon. The board can be found at [1], as per Richard's ML opening email. Cheers, Rafa. [1] https://trello.com/b/wjHyQDK6/kubic-project

1 0

[opensuse-kubic] Heads Up! Please don't let me break Factory (yet)
by Richard Brown 14 Aug '18

14 Aug '18

Hi all, As we are moving to cri-o by default, I've just sent the following SR's to devel:kubic (and devel:CaaSP:Head:ControllerNode in the case of docker-kubic) cri-o 629274 kubernetes 629273 patterns-caasp 629272 docker-kubic 629275 TLDR; PLEASE DO NOT SUBMIT THE ABOVE SR's to Factory. Feel free to review, comment, accept to devel:kubic, but do not to Factory - I will take care of that. Aleksa/anyone I also have an open question - docker-kubic automatically resolves these two issues with kubeadm: [ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call- iptables does not exist [ERROR FileContent--proc-sys-net-ipv4-ip_forward]: /proc/sys/net/ipv4/ip_forward contents are not set to 1 Now I've replaced it with CRI-O people need to "modprobe br_netfilter" and "echo '1' > /proc/sys/net/ipv4/ip_forward" How does docker-kubic take care of that so we can consider a similar solution over in crio kubic? Long explanation below: To explain why all of this has changed, I need to cover what they collectively do (or should do - this all worked on my machine in testing): - Define crio as our default runtime for k8s, and now part of the official 'container-runtime' pattern (which also includes podman) - Define docker as our alternative runtime, and now provided by the official new 'alt-container-runtime' pattern (named for both english 'alternative' and german 'alt') - Makes kubernetes requires either runtime. Should be able to pick what they like and we can easily make images with either. - Adds support to kubeadm to read a config file for easy CRI runtime definition by users or by packages (patch also submitted upstream) - Adds a subpackage to both runtimes to provide the CRI config file now used by kubeadm These changes are dependant on the following changes to the product configuration also https://github.com/yast/skelcd-control-Kubic/pull/19/files This installs both runtimes on MicroOS (for maximum exposure and comfort for people who just want 'docker') For kubeadm it will only install CRI-O by default All of these changes need to be somewhat coordinated. The packages need to land at the same time - and that should be before/at the same time as the skelcd changes (which will be going through the YaST CI) And I do not want any of these changes to land before the already submitted changes reach Factory I want the world to enjoy nice shiny Kubic kubeadm image that works as well as my current test system before I risk breaking it with this plumbing Therefore please, even if you accept the above SR's to devel:kubic, make sure the "Forward to Factory" tickbox is NOT selected. I'd like to decide when these changes go to Factory please Thanks! -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

1 0

[opensuse-kubic] Proposal: Sync up config files with upstream k8s
by Richard Brown 13 Aug '18

13 Aug '18

Hi all, While investigating the current master promotion issues with kubeadm i noticed a few things 1) our /etc/kubernetes/* config files do not seem to reflect that which is expected by k8s upstream eg. no kubelet.env file https://github.com/kubernetes/kubernetes/blob/master/build/rpms/kubelet.env 2) we are not using upstream kubeadms config file - eg. https://github.com/kubernetes/kubernetes/blob/560e15fb9acee4b8391afbc21fc3a… I've therefore created https://build.opensuse.org/project/show/devel:kubic:vanilla This is a temporary devel project which will create an alternate kubernetes package with all of the /etc/kubernetes/* configurations removed, and the upstream kubeadm config file present It's not expected to work right away, hence keeping it separate from the kubernetes package in devel:kubic If this tidy up bears fruit, then devel:kubic:vanilla will die and whatever we learn from this effort will be merged in devel:kubic Anyone looking at getting kubeadm working is welcome to either contribute to the 'tidyup and sync' efforts in devel:kubic:vanilla or, if you think minor alterations are all that's needed, regular tweaks to devel:kubic will still be welcome Regards, Rich -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

2 2

[opensuse-kubic] Sync meetings
by Flavio Castelli 10 Aug '18

10 Aug '18

I think it would be nice to schedule regular sync meetings between all the people involved with the project. Maybe we could hold them every two weeks? Cheers Flavio -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

4 3

[opensuse-kubic] Kubic Project shifts it's focus
by Richard Brown 09 Aug '18

09 Aug '18

Hi All, The Kubic Project, producing a Tumbleweed variant focused on container technologies like Kubernetes, is changing it's focus to integrate more closely with upstream tools like kubeadm For more details please read the full announcement here: https://kubic.opensuse.org/blog/2018-08-09-newdirection/ Please use this opportunity to join in and contribute to this new era of the Kubic project. And, as part of this effort, we've made a new opensuse-kubic(a)opensuse.org mailinglist - please keep any discussion to that mailinglist so we can keep this opensuse-factory@ list nice and focused. Regards, The Kubic Team -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

1 0

[opensuse-kubic] First Post!
by Richard Brown 07 Aug '18

07 Aug '18

Welcome to the Kubic Mailinglist, where we're going to be talking about Kubic without creating noise on opensuse-factory(a)opensuse.org Like -factory, this is intended to be mostly a technical mailinglist discussing everything we're working on for Kubic The creation of this list is part of the fresh effort to refocus Kubic more towards upstream Kubernetes and tools like kubeadm Everyone can track everything we're doing on our new trello board - https://trello.com/b/wjHyQDK6/kubic-project And for those who don't like mailinglist, we're also going to be reachable via the #kubic IRC channel on freenode Have a lot of fun, Richard -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kubic+owner(a)opensuse.org

1 0