March 2021 - kata-dev - lists.katacontainers.io

February 2021 Kata Containers Architecture Committee elections are open! (round 2)
by Fabiano Fidêncio 16 Sep '21

16 Sep '21

Hello Kata Citizens, On behalf of myself, Fabiano Fidêncio, and Ricardo Aravena, as the approved election officials, it's a pleasure to announce that the Kata Containers Architecture Committee Elections for February 2021 are open! There are two Architecture Committee seats up for election. The seats up for election are currently filled by `Xu Wang`, and `Samuel Ortiz`. The timeline for the election process is: • Election officials approved by AC: February 23 * February 24, 15:00 UTC - March 10, 2021 14:59 UTC: Candidate nominations open * March 10, 15:00 UTC - March 22, 2021 14:59 UTC: Q&A/Debate period * March 23, 15:00 UTC - March 29, 2021 14:59 UTC: Voting open * March 30, 2021, results announced The window will be open for candidates to post their submissions, from February 24th, 15:00 UTC. The process to submit a nomination is: 1) Review the responsibilities of the Architecture Committee members [1] 2) Between now and March 3 at 14:59 UTC, you can declare your candidacy for one of the open seats by submitting a text file with your name (please put your name as the file name), the reason for running, and your platform/objectives to this folder [2]. Please also send a message to the kata-dev ML with this same info, declaring your candidacy. Who can vote: Anyone who has had a commit merged into the project in the last 12 months will be eligible to vote. All eligible voters will receive an email with a link to the voting system once the voting period opens. More details of the election process are outlined at [3] and in the etherpad at [4]. Note, once candidacy entry has closed and we enter the debate period, where we will be openly asking the candidates some questions around their candidacy. The community is encouraged to submit questions via the election officials and etherpad at [4] - get your thinking caps on now in preparation... we shall then filter, review, and choose a set of suitable questions for the candidates. Please let us know if you have any questions about running for a seat or the election process! [1] https://github.com/kata-containers/community/tree/master/elections#architec… [2] https://github.com/kata-containers/community/tree/master/elections/arch-com… [3] https://github.com/kata-containers/community/tree/master/elections [4] https://etherpad.opendev.org/p/KataArchCommElections_Feb2021 Best Regards, -- Fabiano Fidêncio

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Migration to Kata 2.0, and support timeline for 1.x
by Eric Ernst 12 May '21

12 May '21

Hey kata folk -- With 2.0 out now, we are focusing continued development and improvements on the 2.0 code base. As a result, in a prior architecture committee meeting discussion, we made the decision on a 6 month window (from release of 1.12) before stopping regular support of the 1.x (1.11 and 1.12 currently) branches. Based on this, here's a first heads up! We plan to deprecate support for 1.x on May 12th 2021. Thanks! Eric

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RFC: direct-assigned filesystem volume proposal
by Eric Ernst 28 Apr '21

28 Apr '21

Ya'll, I'd like to see if we can create a pattern in upstream Kata Containers to help facilitate directly assigning volumes to the VM via virtio-blk, skipping any mounts on the host, and avoiding needing to use a shared file-system for the particular volume. Some of the benefits in doing this: - we can better isolate the host (no mounted filesystem), - more efficient and much faster data path that non-dax virtiofs. - avoid inode caching/memory overheads of virtiofs on the host. In Kubernetes today, there is not a direct communication channel between CSI and the runtime. To make this work on a shorter timeline, therefore, we need to come up with a less traditional way to communicate between the user, CSI and the runtime. I have a proposal in place that "works" today, and I'd like to get feedback on how to improve it, and see if it could be a good fit for upstream. Please see: the proposal at [1], and the PR associated with that proposal at [2]. Please let me know if you: - have any suggestions on the pattern - you are a user that would find this pattern helpful for their use-cases Thanks, Eric [1] - https://github.com/egernst/kata-containers/blob/da-proposal/docs/design/dir… [2] - https://github.com/kata-containers/kata-containers/pull/1568

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vPTG April 19th 2021, 14:00 - 17:00 UTC | Kata Containers "Office Hours"
by Fabiano Fidêncio 20 Apr '21

20 Apr '21

Kata Community, I, on behalf of Kata Containers, have registered for a 3 hours slot (from 14:00 to 17:00 UTC), on April 19th, a lovely Monday. Our current plan is to have this in the format of "Office Hours", where the community will be able to come to us, ask questions about the project, and we'll have free space to talk with the community, with potential users, with you! :-) Come with the mind open to learn about the project, come with the mind open to teach us about cool things you've been using and are currently working on! Here's a previous email sent about the topics & format of this encounter: http://lists.katacontainers.io/pipermail/kata-dev/2021-March/001761.html I sincerely hope to see you all around there! -- Fabiano Fidêncio

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Question regarding the kata github documentaiton
by Ariel Adam 02 Apr '21

02 Apr '21

Hi Sunny. On today's weekly call we were discussing what github kata documentation pages we should invest in improving. Does the openstack foundation get any utilities from github to track the number of accesses to specific pages on kata github site? That would help us understand what are the popular documentation pages we should focus on. Thanks.

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Updated invitation: Kata containers backlog review meeting @ Weekly from 6pm to 7pm on Tuesday from Tue Nov 10, 2020 to Mon Apr 5 (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 31 Mar '21

31 Mar '21

This event has been changed. Title: Kata containers backlog review meeting Purpose of this meeting is to review and clean the kata open issues backlog (https://github.com/kata-containers/kata-containers/issues?q=is%3Aopen+is%3A… idea is then to add additional labels to the cleaned backlog for identifying the high priority ones being actively worked on and track them closer. We can then help focus on completing those issues and unblocking them if needed. Meeting time is based on the doodle poll sent.  When: Weekly from 6pm to 7pm on Tuesday from Tue Nov 10, 2020 to Mon Apr 5 Israel Time (changed) Joining info: Join with Google Meet https://meet.google.com/ttm-kvqf-tog?hs=224 Join by phone (US) +1 225-434-0039 (PIN: 182743039) More joining options: https://tel.meet/ttm-kvqf-tog?pin=3794388642265&hs=0 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * yuzhihong(a)gmail.com * Sun, Ning * Boeuf, Sebastien * Wainer dos Santos Moschetta * Venegas Munoz, Jose Carlos * Montes, Julio * Shinde, Archana M * James O Hunt * ffidenci(a)redhat.com * Randy Martin * raravena80(a)gmail.com * fgiudici(a)redhat.com * cdupontd(a)redhat.com * Kumari, Madhuri * cmeadors(a)redhat.com * azaalouk(a)redhat.com * kata-dev(a)lists.katacontainers.io * Peng Tao * Larrew, Jesse * Fabiano Fidêncio Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=NmYyODh2MTdoNmk0… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Updated invitation: Kata containers backlog review meeting @ Weekly from 5pm to 6pm on Tuesday (IDT) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 31 Mar '21

31 Mar '21

This event has been changed. Title: Kata containers backlog review meeting Purpose of this meeting is to review and clean the kata open issues backlog (https://github.com/kata-containers/kata-containers/issues?q=is%3Aopen+is%3A… idea is then to add additional labels to the cleaned backlog for identifying the high priority ones being actively worked on and track them closer. We can then help focus on completing those issues and unblocking them if needed. Meeting time is based on the doodle poll sent.  When: Weekly from 5pm to 6pm on Tuesday Israel Time (changed) Joining info: Join with Google Meet https://meet.google.com/ttm-kvqf-tog?hs=224 Join by phone (US) +1 225-434-0039 (PIN: 182743039) More joining options: https://tel.meet/ttm-kvqf-tog?pin=3794388642265&hs=0 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * yuzhihong(a)gmail.com * Sun, Ning * Boeuf, Sebastien * Wainer dos Santos Moschetta * Venegas Munoz, Jose Carlos * Montes, Julio * Shinde, Archana M * James O Hunt * ffidenci(a)redhat.com * Randy Martin * raravena80(a)gmail.com * fgiudici(a)redhat.com * cdupontd(a)redhat.com * Kumari, Madhuri * cmeadors(a)redhat.com * azaalouk(a)redhat.com * Fabiano Fidêncio * kata-dev(a)lists.katacontainers.io * Peng Tao * Larrew, Jesse Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=YWxkOXA4aHQ3Mzk5… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Updated invitation: Kata containers backlog review meeting @ Weekly from 6pm to 7pm on Tuesday from Tue Feb 2 to Mon Apr 5 (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 31 Mar '21

31 Mar '21

This event has been changed. Title: Kata containers backlog review meeting Purpose of this meeting is to review and clean the kata open issues backlog (https://github.com/kata-containers/kata-containers/issues?q=is%3Aopen+is%3A… idea is then to add additional labels to the cleaned backlog for identifying the high priority ones being actively worked on and track them closer. We can then help focus on completing those issues and unblocking them if needed. Meeting time is based on the doodle poll sent.  When: Weekly from 6pm to 7pm on Tuesday from Tue Feb 2 to Mon Apr 5 Israel Time (changed) Joining info: Join with Google Meet https://meet.google.com/ttm-kvqf-tog?hs=224 Join by phone (US) +1 225-434-0039 (PIN: 182743039) More joining options: https://tel.meet/ttm-kvqf-tog?pin=3794388642265&hs=0 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * yuzhihong(a)gmail.com * Sun, Ning * Boeuf, Sebastien * Wainer dos Santos Moschetta * Venegas Munoz, Jose Carlos * Montes, Julio * Shinde, Archana M * James O Hunt * ffidenci(a)redhat.com * Randy Martin * raravena80(a)gmail.com * fgiudici(a)redhat.com * cdupontd(a)redhat.com * Kumari, Madhuri * cmeadors(a)redhat.com * azaalouk(a)redhat.com * Fabiano Fidêncio * kata-dev(a)lists.katacontainers.io * Peng Tao * Larrew, Jesse Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=NmYyODh2MTdoNmk0… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Reminder -- Kata Containers meeting is at 3PM UTC going forward
by Eric Ernst 31 Mar '21

31 Mar '21

Hey friends, Vast majority of us held the meeting today at 2pm UTC, including me. Tao and Fupan joined at about 2:58 UTC, early to prepare for a lively AC call at the scheduled 3PM UTC slot. Mea culpa. Let's make sure we *actually *update our schedules for next week! Notes from meeting: https://etherpad.opendev.org/p/Kata_Containers_2021_Architecture_Committee_… Thx, Eric

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Weekly Kata Herders
by Hunt, James O 29 Mar '21

29 Mar '21

Hi All, This week's Kata PR and issue herders are: - Julio (https://github.com/devimc) - me (https://github.com/jodh-intel) - Pavel (https://github.com/pmores) - Ricardo (https://github.com/raravena80) # Statistics ## Issues Issues opened last week: 22 Issues closed last week: 20 Open issues: 1100 Issue backlog project board: https://github.com/orgs/kata-containers/projects/23 ## PRs PRs opened last week: 32 PRs closed last week: 38 Open PRs: 147 Open PRs (excluding dnm+wip): 111 # Get involved If you'd like to help get the open PRs merged and open issues resolved (or get involved in other ways with Kata), take a look at the contributing guide [2] and the rota process [3]. Any problems, just ask us [4]. Cheers, James [1] - https://github.com/kata-containers/community/wiki/Review-Team-Rota [2] - https://github.com/kata-containers/community/blob/master/CONTRIBUTING.md [3] - https://github.com/kata-containers/community/blob/master/Rota-Process.md [4] - https://github.com/kata-cZhihong Yuontainers/community/blob/master/README.md#join-us --- https://katacontainers.io/ | https://github.com/kata-containers Open Source Technology Center Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ. --------------------------------------------------------------------- Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

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AC meetings (Mar 30th, 2021): Add your topics to the agenda!
by Fabiano Fidêncio 29 Mar '21

29 Mar '21

Kata Folks, Please, if you have something you'd like to have discussed as part of the architecture committee meeting happening Tomorrow (Mar 30th, 2021), please, add the items to the list: https://etherpad.opendev.org/p/Kata_Containers_2021_Architecture_Committee_… Please, follow the guidelines for adding a topic to the agenda: https://github.com/kata-containers/community/blob/master/AC-Meeting-Guideli… If no topics are added till Tomorrow 12:00 UTC, the meeting will be cancelled. Best Regards, -- Fabiano Fidêncio

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Kata containers weekly use cases meeting - 25th March 2021
by Ariel Adam 26 Mar '21

26 Mar '21

Hi everyone. Following is today's meeting summary: Use case #1: K8S CI/CD pipeline with kata containers - The team is still working to define the goal and scope. - We should have updates for the next meeting Use case #2: Confidential computing - Samuel presented slides - We got good feedback from RH, IBM and Intel, still pending feedback from AMD - Discussing the topic of service mesh and encrypted containers - what happens when someone pushes a sidecar into the pod? What happens if that sidecar just prints all the memory to somewhere else :-)... - Idea would be to encrypt the side car as well, not guaranteeing what’s inside but yes regarding what you are getting - This does not violate our threat model which is focusing on knowing exactly what we are running - Christophe discussed the topic of the performance cost of using encrypted memory such as extra disk space - the user should decide if he wants to encrypted everything or only the top layers - Smauel pointed out that encrypting only the upper layers would not be strong enough - If your workload runs on a fedora and you only encrypted your workload, the fedora could have been hacked and added a bunch of backdoors - For IBM the goal is to work with full encryption before talking about sharing - The SEV also has a number of issues regarding density as it is so maybe the additional sharing would not save much - max 512 VMs - Note that we are talking about SEV per pod (with a kata VM behind) - We discussed virtio-fs and DAX and the fact that it can’t work with encrypted memory since you don’t want anything to be shared - We want to expand the problem statement and scope not only to fully encrypted images but also signed images Use case #3: Performance isolation (Tao) - Working on best practices for the networking path - Later on will do the same for the IO path - The question is what and how to do in the kata code (for now it’s hacks on the side) - they would like to see an open source implementation for this Action items: - Samuel to share his slides - Tao will share a slide on the next meeting helping understand the interface the performance use case are focusing on *Meeting notes:* https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRTJ0QnJh… Thanks.

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Next Use Case Meeting time?
by James Magowan 24 Mar '21

24 Mar '21

Hi, I am having calendar invite translation challenges :-) Thinking about Fabiano's email but relating to Use Case meetings. Are all the Thursday Use Case meetings intended to be at 12:00 UTC? Which means for those of us in Europe, tomorrows meeting is an hour earlier local time than meetings after the weekend when Daylight Savings start? Thanks, James Magowan Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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Updated invitation with note: Kata containers weekly use cases meeting @ Thu Mar 25, 2021 2pm - 3pm (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 24 Mar '21

24 Mar '21

This event has been changed with this note: "Moving this Thursday's meeting 1 hour earlier to align with EST time (daylight saving time issues). Should be back in sync from next week. " Title: Kata containers weekly use cases meeting Discussing kata container use cases and working on relevant tasks.Meeting notes:https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRT… will be recorded for those who can't attend. Join Zoom Meetinghttps://zoom.us/j/98038141932Passcode: kataMeeting ID: 980 3814 1932One tap mobile+12532158782,,98038141932# US (Tacoma)+13462487799,,98038141932# US (Houston)Dial by your location        +1 253 215 8782 US (Tacoma)        +1 346 248 7799 US (Houston)        +1 669 900 6833 US (San Jose)        +1 301 715 8592 US (Washington DC)        +1 312 626 6799 US (Chicago)        +1 646 876 9923 US (New York)Meeting ID: 980 3814 1932Find your local number: https://zoom.us/u/adGVd3H0IA When: Thu Mar 25, 2021 2pm – 3pm Israel Time (changed) Where: https://zoom.us/j/98038141932 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * fgiudici(a)redhat.com * Boeuf, Sebastien * Ortiz, Samuel * slp(a)redhat.com * ffidenci(a)redhat.com * azaalouk(a)redhat.com * cmeadors(a)redhat.com * kata-dev(a)lists.katacontainers.io * Gupta, Sandeep * Liam Merwick * Boris Ostrovsky * Karl Heubaum * Wang,Liang(ACG CCN) * Peng Tao Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=YXBhM2JubzBqcHJw… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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vPTG April 2021 Team Signup
by Kendall Waters 23 Mar '21

23 Mar '21

Greetings! As you hopefully already know, our next PTG will be virtual again, and held from Monday, April 19 to Friday, April 23. We will have the same schedule set up available as last time with three windows of time spread across the day to cover all timezones with breaks in between. To signup your team, you must complete BOTH the survey[1] AND reserve time in the ethercalc[2] by March 25 at 7:00 UTC. We ask that the PTL/SIG Chair/Team lead sign up for time to have their discussions in with 4 rules/guidelines. 1. Cross project discussions (like SIGs or support project teams) should be scheduled towards the start of the week so that any discussions that might shape those of other teams happen first. 2. No team should sign up for more than 4 hours per UTC day to help keep participants actively engaged. 3. No team should sign up for more than 16 hours across all time slots to avoid burning out our contributors and to enable participation in multiple teams discussions. Again, you need to fill out BOTH the ethercalc AND the survey to complete your team's sign up. If you have any issues with signing up your team, due to conflict or otherwise, please let me know! While we are trying to empower you to make your own decisions as to when you meet and for how long (after all, you know your needs and teams timezones better than we do), we are here to help! Once your team is signed up, please register! And remind your team to register! Registration is free, but since it will be how we contact you with passwords, event details, etc. it is still important! Continue to check back for updates at openstack.org/ptg. -the Kendalls (diablo_rojo & wendallkaters) [1] Team Survey: https://openinfrafoundation.formstack.com/forms/april2021_vptg_survey <https://openinfrafoundation.formstack.com/forms/april2021_vptg_survey> [2] Ethercalc Signup: https://ethercalc.net/oz7q0gds9zfi <https://ethercalc.net/oz7q0gds9zfi> [3] PTG Registration: https://april2021-ptg.eventbrite.com <https://april2021-ptg.eventbrite.com/>

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Weekly Kata Herders
by Hunt, James O 22 Mar '21

22 Mar '21

Hi All, This week's Kata PR and issue herders are: - Carlos (https://github.com/jcvenegas) - Zhihong Yu (https://github.cZhihong Yuom/tedyu) # Statistics ## Issues Issues opened last week: 20 Issues closed last week: 17 Open issues: 1096 Issue backlog project board: https://github.com/orgs/kata-containers/projects/23 ## PRs PRs opened last week: 32 PRs closed last week: 29 Open PRs: 151 Open PRs (excluding dnm+wip): 112 # Get involved If you'd like to help get the open PRs merged and open issues resolved (or get involved in other ways with Kata), take a look at the contributing guide [2] and the rota process [3]. Any problems, just ask us [4]. Cheers, James [1] - https://github.com/kata-containers/community/wiki/Review-Team-Rota [2] - https://github.com/kata-containers/community/blob/master/CONTRIBUTING.md [3] - https://github.com/kata-containers/community/blob/master/Rota-Process.md [4] - https://github.com/kata-cZhihong Yuontainers/community/blob/master/README.md#join-us --- https://katacontainers.io/ | https://github.com/kata-containers Open Source Technology Center Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ. --------------------------------------------------------------------- Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

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Shall we have the time of the meetings based on UTC rather than any other timezone?
by Fabiano Fidêncio 22 Mar '21

22 Mar '21

Kata Folks, I'm wondering whether we could have an agreement to ensure the time of our meetings are based on UTC, rather than some other timezone. I guess the main benefit of having the meeting time based on UTC is that everyone knows better what happens on their own timezone (DST changes, for instance). For this week, we're having the AC meeting an hour earlier than usual (for everyone who's outside of the US, I guess) due to the DST shift that happened in the US, and last meeting we had already a few people slightly lost because of that. :-) Best Regards, -- Fabiano Fidêncio

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AC meetings (Mar 23rd, 2021): Add your topics to the agenda!
by Fabiano Fidêncio 22 Mar '21

22 Mar '21

Kata Folks, Please, if you have something you'd like to have discussed as part of the architecture committee meeting happening Tomorrow (Mar 23rd, 2021), please, add the items to the list: https://etherpad.opendev.org/p/Kata_Containers_2021_Architecture_Committee_… Please, follow the guidelines for adding a topic to the agenda: https://github.com/kata-containers/community/blob/master/AC-Meeting-Guideli… If no topics are added till Tomorrow 12:00 UTC, the meeting will be cancelled. Best Regards, -- Fabiano Fidêncio

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Updated invitation: Kata containers weekly use cases meeting @ Weekly from 3pm to 4pm on Thursday from Thu Mar 11 to Wed Mar 17 (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 17 Mar '21

17 Mar '21

This event has been changed. Title: Kata containers weekly use cases meeting Discussing kata container use cases and working on relevant tasks.Meeting notes:https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRT… will be recorded for those who can't attend.  When: Weekly from 3pm to 4pm on Thursday from Thu Mar 11 to Wed Mar 17 Israel Time (changed) Joining info: Join with Google Meet https://meet.google.com/szz-kxsy-mia?hs=224 Join by phone (IL) +972 73-359-9899 (PIN: 8002503033382) More joining options: https://tel.meet/szz-kxsy-mia?pin=8002503033382&hs=0 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * kata-dev(a)lists.katacontainers.io * Gupta, Sandeep * Liam Merwick * Boris Ostrovsky * Karl Heubaum * fgiudici(a)redhat.com * Boeuf, Sebastien * Ortiz, Samuel * slp(a)redhat.com * ffidenci(a)redhat.com * azaalouk(a)redhat.com Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=MzIxaGJjdjluZjRr… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Updated invitation with note: Kata containers weekly use cases meeting @ Every 2 weeks from 3pm to 4pm on Thursday (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 17 Mar '21

17 Mar '21

This event has been changed with this note: "Changing to by-monthly " Title: Kata containers weekly use cases meeting Discussing kata container use cases and working on relevant tasks.Meeting notes:https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRT… will be recorded for those who can't attend. Join Zoom Meetinghttps://zoom.us/j/98038141932Passcode: kataMeeting ID: 980 3814 1932One tap mobile+12532158782,,98038141932# US (Tacoma)+13462487799,,98038141932# US (Houston)Dial by your location        +1 253 215 8782 US (Tacoma)        +1 346 248 7799 US (Houston)        +1 669 900 6833 US (San Jose)        +1 301 715 8592 US (Washington DC)        +1 312 626 6799 US (Chicago)        +1 646 876 9923 US (New York)Meeting ID: 980 3814 1932Find your local number: https://zoom.us/u/adGVd3H0IA (changed) When: Every 2 weeks from 3pm to 4pm on Thursday Israel Time (changed) Where: https://zoom.us/j/98038141932 (changed) Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * fgiudici(a)redhat.com * Boeuf, Sebastien * Ortiz, Samuel * slp(a)redhat.com * ffidenci(a)redhat.com * azaalouk(a)redhat.com * kata-dev(a)lists.katacontainers.io * Gupta, Sandeep * Liam Merwick * Boris Ostrovsky * Karl Heubaum * Wang,Liang(ACG CCN) Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=YXBhM2JubzBqcHJw… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Kata containers weekly use cases meeting - changing to by-monthly
by Ariel Adam 17 Mar '21

17 Mar '21

Hi everyone. Given that we are making slow progress on the use case action items from last week we will change the cadence of the meetings to every 2 weeks. This should give the use case teams sufficient time to discuss things offline and progress between the meetings. Meeting notes and action items from last meeting: https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRTJ0QnJh… Thanks.

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Updated invitation: Kata containers weekly use cases meeting @ Weekly from 3pm to 4pm on Thursday (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 16 Mar '21

16 Mar '21

This event has been changed. Title: Kata containers weekly use cases meeting Discussing kata container use cases and working on relevant tasks.Meeting notes:https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRT… will be recorded for those who can't attend.  When: Weekly from 3pm to 4pm on Thursday Israel Time Joining info: Join with Google Meet https://meet.google.com/szz-kxsy-mia?hs=224 Join by phone (IL) +972 73-359-9899 (PIN: 8002503033382) More joining options: https://tel.meet/szz-kxsy-mia?pin=8002503033382&hs=0 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * kata-dev(a)lists.katacontainers.io * Gupta, Sandeep * Liam Merwick * Boris Ostrovsky * Karl Heubaum * fgiudici(a)redhat.com * Boeuf, Sebastien * Ortiz, Samuel * slp(a)redhat.com * ffidenci(a)redhat.com Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=MzIxaGJjdjluZjRr… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Updated invitation with note: Kata containers weekly use cases meeting @ Weekly from 3pm to 4pm on Thursday (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 16 Mar '21

16 Mar '21

This event has been changed with this note: "Changing the google meet to a zoom session curtesy of Sunny :-). " Title: Kata containers weekly use cases meeting Discussing kata container use cases and working on relevant tasks.Meeting notes:https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRT… will be recorded for those who can't attend. Join Zoom Meetinghttps://zoom.us/j/98038141932Passcode: kataMeeting ID: 980 3814 1932One tap mobile+12532158782,,98038141932# US (Tacoma)+13462487799,,98038141932# US (Houston)Dial by your location        +1 253 215 8782 US (Tacoma)        +1 346 248 7799 US (Houston)        +1 669 900 6833 US (San Jose)        +1 301 715 8592 US (Washington DC)        +1 312 626 6799 US (Chicago)        +1 646 876 9923 US (New York)Meeting ID: 980 3814 1932Find your local number: https://zoom.us/u/adGVd3H0IA (changed) When: Weekly from 3pm to 4pm on Thursday Israel Time Where: https://zoom.us/j/98038141932 (changed) Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * kata-dev(a)lists.katacontainers.io * Gupta, Sandeep * Liam Merwick * Boris Ostrovsky * Karl Heubaum * fgiudici(a)redhat.com * Boeuf, Sebastien * Ortiz, Samuel * slp(a)redhat.com * ffidenci(a)redhat.com Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=MzIxaGJjdjluZjRr… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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AC meetings (Mar 16th, 2021): Add your topics to the agenda!
by Fabiano Fidêncio 15 Mar '21

15 Mar '21

Kata Folks, Please, if you have something you'd like to have discussed as part of the architecture committee meeting happening Tomorrow (Mar 16th, 2021), please, add the items to the list: https://etherpad.opendev.org/p/Kata_Containers_2021_Architecture_Committee_… Please, follow the guidelines for adding a topic to the agenda: https://github.com/kata-containers/community/blob/master/AC-Meeting-Guideli… If no topics are added till Tomorrow 12:00 UTC, the meeting will be cancelled. Best Regards, -- Fabiano Fidêncio

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Weekly Kata Herders
by Hunt, James O 15 Mar '21

15 Mar '21

Hi All, This week's Kata PR and issue herder is: - Eric (https://github.com/egernst) If you have any spare cycles, please consider helping Eric out! # Statistics ## Issues Issues opened last week: 24 Issues closed last week: 30 Open issues: 1093 ## PRs PRs opened last week: 20 PRs closed last week: 23 Open PRs: 149 Open PRs (excluding dnm+wip): 109 Issue backlog project board: https://github.com/orgs/kata-containers/projects/23 # Get involved If you'd like to help get the open PRs merged and open issues resolved (or get involved in other ways with Kata), take a look at the contributing guide [2] and the rota process [3]. Any problems, just ask us [4]. Cheers, James [1] - https://github.com/kata-containers/community/wiki/Review-Team-Rota [2] - https://github.com/kata-containers/community/blob/master/CONTRIBUTING.md [3] - https://github.com/kata-containers/community/blob/master/Rota-Process.md [4] - https://github.com/kata-containers/community/blob/master/README.md#join-us --- https://katacontainers.io/ | https://github.com/kata-containers Open Source Technology Center Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ. --------------------------------------------------------------------- Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

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Kata containers weekly use cases meeting summary - March 11th 2021
by Ariel Adam 12 Mar '21

12 Mar '21

Hi everyone. Following are the meetings notes from today's meeting: https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRTJ0QnJh… The meeting was recorded however I discovered now that since it was a google meet I can only share it with gmail accounts (and kata-dev@ isn't a gmail account). For those who want to see the recording please send me your gmail and I will add you. We will look for a different way to record the meeting next week. Thanks.

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Kata containers weekly use cases meetings Thursday's 8AM EST
by Ariel Adam 11 Mar '21

11 Mar '21

Hi everyone. Following the doodle poll results the weekly kata use cases meeting will be on Thursday's 8AM EST. For the 1st meeting happening this Thursday we've added 3 questions to each of the use case we hope people could answer before the meetings: 1. How do you envision kata containers being used in this use case? 2. What do you think should be the outcome of this use case work? 3. What do you think are the tasks that should be done as part of this work? Google doc for the meeting with the questions: https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRTJ0QnJh… Thanks.

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February 2021 Kata Containers Architecture Committee elections is over.
by Fabiano Fidêncio 11 Mar '21

11 Mar '21

Kata citizens, On behalf of myself, Fabiano Fidêncio, and Ricardo Avarena, as the approved election officials, we'd like to announce that the period for Architecture Committee elections submissions is now closed, and so is this round of elections. We are am happy to announce that we have had submissions from: - Peng Tao - Samuel Ortiz You can view those submissions at: https://github.com/kata-containers/community/tree/master/elections/arch-com… Given we have two open seats and two candidates, the election is now over. We'd like to invite everyone to welcome Peng Tao to his new role at the Architecture Committee, and to congratulate Samuel Ortiz for renewing his role! Last but not least, here's a reminder of the Architecture Committee Responsibilities. Architecture Committee members guide the technical direction of the Kata Containers project. This includes, but is not limited to: * Serving the Kata technical community * Driving technical direction * Handling interactions with other governance bodies * Acting as the final call in technical disputes * Ensuring inclusive, open collaboration and development * Identifying gaps in technical direction or community health * Attending Architecture Committee meetings * Regular participation (and advanced notice of absences) in online Arch Committee meetings and in-person meetings is expected * Actively participates in Kata Containers design and development * Not restricted to code contributions, but active input and guidance is expected Changes to our community documents will be done along this and the coming week to reflect the results of this election. Again, congratulations Samuel and Tao! Best Regards, -- Fabiano Fidêncio

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[elections] [2021-02] Samuel Ortiz candidacy
by Samuel Ortiz 09 Mar '21

09 Mar '21

All, I'd like to run for renewing my AC seat, as part of the 2021-02 election round. Name: Samuel Ortiz Email: sameo(a)linux.intel.com Background: I am a Principal Software Engineer working for Intel, where I work on several projects related to virtualization and containers: Kata Containers, rust-vmm and Cloud Hypervisor. I started to work on Kata Containers a few years ago, back when I initially led the Clear Containers project at Intel. Since then I have contributed to many different areas of the project, from core components like the virtcontainers package to integration work with the CRI-O and containerd projects. Together with the folks from hyper.sh, we began the Kata Containers journey with the ambitious goal of providing stronger isolation to cloud native workloads, with minimal overhead. Three years ago, this was a fairly innovative approach and at some point I stopped counting the number of hours that Xu, Eric, Peng or myself spent at conferences, meetups or foundation booths demonstrating how Kata Containers met that promise. I believe it is now time to bring the next generation of hardware isolation and confidentiality technologies to the cloud native ecosystem, and in the upcoming months I'd like to help the Kata Containers project reach that goal.

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AC meetings (Mar 8th, 2021): Add your topics to the agenda!
by Fabiano Fidêncio 09 Mar '21

09 Mar '21

Kata Folks, Please, if you have something you'd like to have discussed as part of the architecture committee meeting happening Tomorrow (Mar 8th, 2021), please, add the items to the list: https://etherpad.opendev.org/p/Kata_Containers_2021_Architecture_Committee_… Please, follow the guidelines for adding a topic to the agenda: https://github.com/kata-containers/community/blob/master/AC-Meeting-Guideli… If no topics are added till Tomorrow 12:00 UTC, the meeting will be cancelled. Best Regards, -- Fabiano Fidêncio

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About the build of QEMU on Kata Containers
by Wainer dos Santos Moschetta 09 Mar '21

09 Mar '21

Hi all, While working on updating the version of QEMU [1] used on the project, for some occasions people outside asked me why the project builds QEMU from source instead of relying on distro's provided. When I started contributing to this project I asked it myself many times but I never looked for an answer. I can think on many reasons but I would be guessing. So If someone could share the rationale here, I would appreciate it. Perhaps more important, we could discuss if the scenario stands the same so that we should stick with that approach or if we could manage the QEMU build differently nowadays. [1] https://github.com/kata-containers/kata-containers/pull/1349 Thanks in advance, Wainer dos Santos Moschetta Software Engineer, Red Hat, Brazil

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Weekly Kata Herders
by Hunt, James O 08 Mar '21

08 Mar '21

Hi All, This week's Kata PR and issue herders are: - bergwolf (https://github.com/bergwolf) - Chelsea (https://github.com/cmaf) # Statistics ## Issues Issues opened last week: 21 Issues closed last week: 22 Open issues: 1098 Issue backlog project board: https://github.com/orgs/kata-containers/projects/23 ## PRs PRs opened last week: 18 PRs closed last week: 22 Open PRs: 152 Open PRs (excluding dnm+wip): 112 # Get involved If you'd like to help get the open PRs merged and open issues resolved (or get involved in other ways with Kata), take a look at the contributing guide [2] and the rota process [3]. Any problems, just ask us [4]. Cheers, James [1] - https://github.com/kata-containers/community/wiki/Review-Team-Rota [2] - https://github.com/kata-containers/community/blob/master/CONTRIBUTING.md [3] - https://github.com/kata-containers/community/blob/master/Rota-Process.md [4] - https://github.com/kata-containers/community/blob/master/README.md#join-us --- https://katacontainers.io/ | https://github.com/kata-containers Open Source Technology Center Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ. --------------------------------------------------------------------- Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

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Invitation: Kata containers weekly use cases meeting @ Weekly from 3pm to 4pm on Thursday (IST) (kata-dev@lists.katacontainers.io)
by aadam＠redhat.com 08 Mar '21

08 Mar '21

You have been invited to the following event. Title: Kata containers weekly use cases meeting Discussing kata container use cases and working on relevant tasks.Meeting notes:https://docs.google.com/document/d/1E3GLCzNgrcigUlgWAZYlgqNTdVwiMwCRT… will be recorded for those who can't attend.  When: Weekly from 3pm to 4pm on Thursday Israel Time Joining info: Join with Google Meet https://meet.google.com/szz-kxsy-mia?hs=224 Join by phone (IL) +972 73-359-9899 (PIN: 8002503033382) More joining options: https://tel.meet/szz-kxsy-mia?pin=8002503033382&hs=0 Calendar: kata-dev(a)lists.katacontainers.io Who: * aadam(a)redhat.com - organizer * kata-dev(a)lists.katacontainers.io Event details: https://calendar.google.com/calendar/event?action=VIEW&eid=MzIxaGJjdjluZjRr… Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this courtesy email at the account kata-dev(a)lists.katacontainers.io because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://calendar.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organizer and be added to the guest list, or invite others regardless of their own invitation status, or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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Nominate Peng Tao as an AC candidate
by Xu Wang 04 Mar '21

04 Mar '21

Hi folks, I missed the last AC meeting because I had to attend the foundation board meeting because our company, Ant Group, has joined the OIF. And we commit we will keep working with Kata Containers for future great releases. Because I will work with the foundation board and other affairs, I nominate Peng Tao as an AC candidate. He is one of the Kata top contributors in our team, and a release manager of many kata releases. I believe he is the guy we could trust. I won't leave the community and I and all my team members will keep supporting Peng Tao's job. Name: Peng, Tao Email: bergwolf(a)hyper.sh, bergwolf(a)antgroup.com Background: Peng Tao is a staff engineer of Ant Group. In Ant Group, we have large deployments of Kubernetes and about 10K nodes of them are running Kata containers. Our team is responsible for the runtime and cloud-native storage of Ant Group. Peng Tao, together with Xu and other teammates, used to be the dev team of hyper.sh. The team was one of the creators of Kata Containers, and has kept working on Kata Containers since joining Ant Group. When the Kata Containers project was created, Peng Tao committed the first commit for it: https://github.com/kata-containers/proxy/commit/94a07ff010b80fad8235278032d… And he was known as the release manager of the Kata 2.0 as well. In 2021, Ant Group has joined the Open Infrastructure and become a member of the board of directors. We commit our team will keep working with the Kata Community for the following release cycles. -- Xu Wang (@gnawux) Senior Staff Engineer at Ant Financial A Member of Kata Containers Architecture Committee

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Rust agent debug
by Qian Cai 03 Mar '21

03 Mar '21

I am chasing a bug that "crictl rm" returns ESRCH which ends up tracking down in the rust agent code: https://github.com/kata-containers/kata-containers/blob/a12772c6010f6886be7… I don't yet understand how to get some debugging messages outside of the agent, so I can see why it return ESRCH. I tried added things like, info!(sl!(), "KKK in do_signal_process()"); but I can't see that message anywhere. I even setup a debug console which allows me to connect to a shell, but that is. The only way I can get some message out (showed up in the CRI daemon logs) so far is, return Err(anyhow!("KKK in do_signal_process()")); which has to terminate the function. Do I have to use things like agent-ctl to capture those "info!" output? Anyway, it is even better if anyone has some ideas on the bug itself which is that if we do a "crictl rm" without "crictl start" first, it will error out. # crictl runp --runtime=kata pod-config.json # crictl create <sid> container-pod.json pod-config.json # crictl rm <cid> ERRO[0010] removing container "144cf0b64d154983da7419a5e8ae5bcb796cc7b054aa7fdcfbb6c44ad8f33621" failed: rpc error: code = Unknown desc = unable to stop container 144cf0b64d154983da7419a5e8ae5bcb796cc7b054aa7fdcfbb6c44ad8f33621: failed to stop container 144cf0b64d154983da7419a5e8ae5bcb796cc7b054aa7fdcfbb6c44ad8f33621: ESRCH: No such process: unknown FATA[0010] unable to remove container(s) # cat pod-config.json { "metadata": { "name": "alpine-sandbox", "namespace": "default", "attempt": 1, "uid": "hdishd83djaidwnduwk28bcsb" }, "log_directory": "/tmp", "linux": { } } # cat container-pod.json { "metadata": { "name": "alpine" }, "image":{ "image": "alpine" }, "command": [ "sleep", "3600" ], "log_path":"alpine.0.log", "linux": { } }

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Kata containers community use cases weekly meeting
by Ariel Adam 03 Mar '21

03 Mar '21

Hi everyone. We have created a doodle poll for the kata community weekly use cases meeting: https://doodle.com/poll/ztmz3xiampncyemp?utm_source=poll&utm_medium=link Samuel and I tried finding timeslots we can both attend (challenging :-)). If these time slots don't work for you and you still want to attend please let us know. We'd appreciate it you could answer this poll by Thursday EOD so we can schedule the meeting accordingly. For those who are in very different time zones such as Australia (Atlassian for example) we will schedule a short early meeting as well so they can also attend. Thanks.

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Impact of our current choice of PCI topology
by Christophe de Dinechin 03 Mar '21

03 Mar '21

With David's permission, let me forward a discussion regarding PCI topology in qemu. The discussion is how to accelerate hot-plugging in qemu guests, in order to reduce boot time. But that also brought an interesting summary of the impact of the choices Kata makes regarding PCI topology, which I thought was worth sharing with this list. > > On 15 Feb 2021, at 07:09, David Gibson <dgibson(a)redhat.com> wrote: > > On Mon, 8 Feb 2021 09:42:22 +0100 >>>> >>>> I'm curious if the device itself reacts faster than that. If so, could >>>> we consider making the delay a kernel command-line option? >>>> Maybe that's already done somewhere? >>> >>> Hm, if we're willing to play fast and loose with the spec, maybe. >> >> The assumption would be that this is only under virtualization, so >> we may have increased control of the "operator". That may be >> enough to compensate with "playing fast and loose". Maybe. > > Hm, true. My first inclination was to reject that idea, but thinking > about it further, we do really control both "sides" of the protocol, so > hacking in this way might be a reasonable compromise in the medium term > (longer term, I think ACPI hotplug is probably the answer). > >> [...] >> [...] >> [...] >> [...] >> >> Well, presently kata does something like this: >> >> -device pci-bridge,bus=pcie.0,id=pci-bridge-0,chassis_nr=1,shpc=on,addr=2,romfile= >> -device virtio-serial-pci,disable-modern=false,id=serial0,romfile=,max_ports=2 >> -device virtconsole,chardev=charconsole0,id=console0 >> -device virtio-scsi-pci,id=scsi0,disable-modern=false,romfile= >> -device virtio-rng-pci,rng=rng0,romfile= >> -device vhost-vsock-pci,disable-modern=false,vhostfd=3,id=vsock-908331243,guest-cid=908331243,romfile= >> -device vhost-user-fs-pci,chardev=char-9ebd3233988c581e,tag=kataShared,romfile= >> -device driver=virtio-net-pci,netdev=network-0,mac=9a:be:ea:cc:8f:8f,disable-modern=false,mq=on,vectors=4,romfile= >> >> >> whereas libvirt uses a root port: >> >> -device pcie-root-port,port=0x10,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x2 >> -device pcie-root-port,port=0x11,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 >> -device pcie-root-port,port=0x12,chassis=3,id=pci.3,bus=pcie.0,addr=0x2.0x2 >> -device pcie-root-port,port=0x13,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x3 >> -device pcie-root-port,port=0x14,chassis=5,id=pci.5,bus=pcie.0,addr=0x2.0x4 >> -device pcie-root-port,port=0x15,chassis=6,id=pci.6,bus=pcie.0,addr=0x2.0x5 >> -device pcie-root-port,port=0x16,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x6 >> -device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.2,addr=0x0 >> -device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 >> -device virtio-blk-pci,bus=pci.4,addr=0x0,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 >> -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:cd:ed:dd,bus=pci.1,addr=0x0 >> -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.6,addr=0x0 >> >> >> I remember someone mentioning that the kata approach was outdated, and introduced some limitations with respect to hotplugging, but I can't recall the details. What are the implications with respect to hotplug of using pci-bridge? > > There are several. > > 1. Using a bridge means we are using SHPC rather than PCI-e native > hotplug, which has the tradeoffs I discussed earlier. > > 2. On the other hand, using one bridge gives us 32 slots we can > potentially plug into, whereas each port just gives us one. This > makes managing the number of available hotplug slots much easier, > and is the main reason that Kata kind of prefers to use the bridge > at the moment. > > 3. Not strictly related to hotplug, but using a bridge does mean that > all the devices under it will be in the same *guest* IOMMU group, > even if they're in different host IOMMU groups. That has several > implications: > - It wouldn't be possible to hand in several VFIO devices and > give them each to *different* userspace drivers in the guest > (e.g. two separate DPDK applications running as different > processes). That's probably not all that likely in practice, > since putting separate DPDK apps in separate containers seems a > more likely choice. > - At also means we can't use some of the devices under the bridge > with DPDK while others are used by guest kernel drivers. Since > certain storage options involve hotplugging PCI devices to the > guest which are then bound to guest drivers, this would rule > out using DPDK with those storage configurations

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PTG | Shall we do something for the event?
by Fabiano Fidêncio 03 Mar '21

03 Mar '21

During the Architecture Committee's meeting held on March 2nd, 2021, we discussed how we should approach the PTG, which are the discussions we'd like to have, which are the topics we'd like to present, and which are the topics we'd like to learn from. A document[0] has been created in order to gather ideas and then, to later on, map those ideas into slots (which will be announced at some point early next week). We, as Kata Containers, would love to get ideas and feedback from the community around the project about what the community thinks that could be interesting to see, what the community thinks that could be interesting to share with us. So, please, if you're a security enthusiast, a student hacking on the project, a writer planning to improve our documentation, someone who tried to use Kata Containers but ended up hitting some roadblock, you, a happy user and / or developer of this ecosystem, you, a member of this list, please, help us to brainstorm on how we could better use this time in benefit of the community. Please, while filling up the ideas, also add the timezone you're based in. This will help us to better prepare the schedule once we have the information about the slots. [0]: https://docs.google.com/document/d/1Zt2KRFlJLbyT2mFEq5dqbclOoRSL_T9kpXrbMjY… Best Regards, -- Fabiano Fidêncio

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Backlog Review | Checking the issues with the higher priority are moving on
by Fabiano Fidêncio 03 Mar '21

03 Mar '21

During Today's Backlog Review meeting Ariel brought up a discussion about how to proceed in order to ensure high priority issues are moving, in order to understand whether something is blocking the development (either a CI failure, a review missing, or just bits & pieces that must be put together). One suggestion that came up is an email sent to the list, on a weekly basis, checking the status of those, CC'ing the people working on the issues themselves. We'd like to gather some feedback on what people from the community would be okay with such an approach before it's put in action. The intention here is *not* to add more pressure on the members working on the issue, the intention here is *not* to make the parts involved duplicate their communication work. The plan is rather to hint which are the areas the herders could be focusing on in order to help the community to solve the issues with a higher impact and higher priority. Please, let us know about your opinion on this. Best Regards, -- Fabiano Fidêncio, on behalf of the Kata Containers community.

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April 2021 PTG Reg Info
by Sunny Cai 02 Mar '21

02 Mar '21

Hi Kata citizens, As you might have known that the next virtual PTG will take place April 19-23, 2021 [1]. The PTG registration is now open[2]. Like last time, it is free, but we will again be using it to communicate details about the event (schedules, passwords, etc), so please take two minutes to register! Early next week we will send out info to mailing lists about signing up teams. Also, the same as last time, we will have an ethercalc signup and a survey to gather some other data about your team. [1] https://www.openstack.org/ptg/ [2] https://april2021-ptg.eventbrite.com Thanks, Sunny Cai Open Infrastructure Foundation sunny(a)openstack.org

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April 2021 PTG Dates & Registration
by Kendall Waters 02 Mar '21

02 Mar '21

Hello Everyone! I'm sure you all have been anxiously awaiting the announcement of the dates for the next virtual PTG[1]! The PTG will take place April 19-23, 2021! PTG registration is now open[2]. Like last time, it is free, but we will again be using it to communicate details about the event (schedules, passwords, etc), so please take two minutes to register! Early next week we will send out info to mailing lists about signing up teams. Also, the same as last time, we will have an ethercalc signup and a survey to gather some other data about your team. Can't wait to see you all there! -the Kendalls (diablo_rojo & wendallkaters) [1] https://www.openstack.org/ptg/ <https://www.openstack.org/ptg/> [2] https://april2021-ptg.eventbrite.com <https://april2021-ptg.eventbrite.com/>

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February 2021 Kata Containers Architecture Committee elections are open!
by Fabiano Fidêncio 02 Mar '21

02 Mar '21

Hello Kata Citizens, On behalf of myself, Fabiano Fidêncio, and Ricardo Aravena, as the approved election officials, it's a pleasure to announce that the Kata Containers Architecture Committee Elections for February 2021 are open! There are two Architecture Committee seats up for election. The seats up for election are currently filled by `Xu Wang`, and `Samuel Ortiz`. The timeline for the election process is: • Election officials approved by AC: February 23 * February 24, 15:00 UTC - March 3, 2021 14:59 UTC: Candidate nominations open * March 4, 15:00 UTC - March 15, 2021 14:59 UTC: Q&A/Debate period * March 16, 15:00 UTC - March 22, 2021 14:59 UTC: Voting open * March 23, 2021, results announced The window will be open for candidates to post their submissions, from February 24th, 15:00 UTC. The process to submit a nomination is: 1) Review the responsibilities of the Architecture Committee members [1] 2) Between now and March 3 at 14:59 UTC, you can declare your candidacy for one of the open seats by submitting a text file with your name (please put your name as the file name), the reason for running, and your platform/objectives to this folder [2]. Please also send a message to the kata-dev ML with this same info, declaring your candidacy. Who can vote: Anyone who has had a commit merged into the project in the last 12 months will be eligible to vote. All eligible voters will receive an email with a link to the voting system once the voting period opens. More details of the election process are outlined at [3] and in the etherpad at [4]. Note, once candidacy entry has closed and we enter the debate period, where we will be openly asking the candidates some questions around their candidacy. The community is encouraged to submit questions via the election officials and etherpad at [4] - get your thinking caps on now in preparation... we shall then filter, review, and choose a set of suitable questions for the candidates. Please let us know if you have any questions about running for a seat or the election process! [1] https://github.com/kata-containers/community/tree/master/elections#architec… [2] https://github.com/kata-containers/community/tree/master/elections/arch-com… [3] https://github.com/kata-containers/community/tree/master/elections [4] https://etherpad.opendev.org/p/KataArchCommElections_Feb2021 Best Regards, -- Fabiano Fidêncio

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AC meetings (Mar 2nd, 2021): Add your topics to the agenda!
by Fabiano Fidêncio 01 Mar '21

01 Mar '21

Kata Folks, Please, if you have something you'd like to have discussed as part of the architecture committee meeting happening Tomorrow (Mar 2nd, 2021), please, add the items to the list: https://etherpad.opendev.org/p/Kata_Containers_2021_Architecture_Committee_… The meeting on Mar 2nd is happening, as we already have topics to cover! Best Regards, -- Fabiano Fidêncio

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Weekly Kata Herders
by Hunt, James O 01 Mar '21

01 Mar '21

Hi All, This week's Kata PR and issue herders are: - Christophe (https://github.com/c3d) - Gaby (https://github.com/GabyCT) - Jongwu (https://github.com/jongwu) - Snir (https://github.com/snir911) # Statistics ## Issues Issues opened last week: 35 Issues closed last week: 24 Open issues: 1098 Issue backlog project board: https://github.com/orgs/kata-containers/projects/23 ## PRs PRs opened last week: 27 PRs closed last week: 22 Open PRs: 155 Open PRs (excluding dnm+wip): 113 # Get involved If you'd like to help get the open PRs merged and open issues resolved (or get involved in other ways with Kata), take a look at the contributing guide [2] and the rota process [3]. Any problems, just ask us [4]. Cheers, James [1] - https://github.com/kata-containers/community/wiki/Review-Team-Rota [2] - https://github.com/kata-containers/community/blob/master/CONTRIBUTING.md [3] - https://github.com/kata-containers/community/blob/master/Rota-Process.md [4] - https://github.com/kata-containers/community/blob/master/README.md#join-us --- https://katacontainers.io/ | https://github.com/kata-containers Open Source Technology Center Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ. --------------------------------------------------------------------- Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

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