Re: [systemd-devel] How to use machinectl to get a running centos container?
On Fri, Mar 3, 2017 at 4:09 PM, Lennart Poettering wrote: > On Sat, 04.03.17 01:38, Daurnimator (q...@daurnimator.com) wrote: > >> On 3 March 2017 at 20:58, Lennart Poettering wrote: >> > On Fri, 03.03.17 12:34, Daurnimator (q...@daurnimator.com) wrote: >> > >> >> I'm trying to set up a centos 7 container with machinectl. >> >> I've tried to run: >> >> >> >> machinectl pull-raw --verify=no >> >> http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-1701.raw.tar.gz >> > >> > Hmm, what is a ".raw.tar.gz" file? That suffix makes no sense to me... >> >> *shrugs* it's what I saw available for download from >> http://cloud.centos.org/centos/7/images/ >> >> Apparently it's a gziped tar with a single file inside: >> CentOS-7-x86_64-GenericCloud-20170131_01.raw >> This .raw file is a disk image. > > That appears a bit redundant, and importd/machinectl pull-raw is not > able to handle this. > > >> > We support raw disk images and tarballs with OS trees in them, both >> > compressed and non-compressed. >> > >> > There's currently a safety limit against overly large images enforced, >> > of 8GiB. If the indicated image is larger than that, and that's >> > intended we should probably bump this safety limit substantially (32G? >> > 64G?), please file a github issue asking for this if this is the >> > case. Or even better prep a PR, the fix is trivial: >> > >> > https://github.com/systemd/systemd/blob/master/src/import/pull-job.c#L530 >> >> Looks like it's *equal* to the limit. >> >> Before I make a PR here, am I going about running a centos container >> with machinectl the best way here? >> How are other people doing this? > > I don't think many people are using CentOS caontainers with > nspawn... That said, there's a good chance that it works OKish. I use them regularly and they work just fine (well I use RHEL7 but that should not matter). However I don't download images from anywhere. I install distro trees to /var/lib/machines/ manually using dnf. > > Note that "machinectl pull-raw" is just a helper to make downloading > easy. But if you have images in weird formats, you can download them > and place them in /var/lib/machines (with the .raw suffix), and > machined/nspawn is happy. It doesn't really matter how the image gets > there as long as it gets there, and "machinectl pull-raw" is just one > way. That is what I also recommend. Installing from repo always worked for me. For basic system container I just use example from nspawn manpage. Michal > > Lennart > > -- > Lennart Poettering, Red Hat > ___ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/systemd-devel ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] How to use machinectl to get a running centos container?
On Sat, 04.03.17 01:38, Daurnimator (q...@daurnimator.com) wrote: > On 3 March 2017 at 20:58, Lennart Poettering wrote: > > On Fri, 03.03.17 12:34, Daurnimator (q...@daurnimator.com) wrote: > > > >> I'm trying to set up a centos 7 container with machinectl. > >> I've tried to run: > >> > >> machinectl pull-raw --verify=no > >> http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-1701.raw.tar.gz > > > > Hmm, what is a ".raw.tar.gz" file? That suffix makes no sense to me... > > *shrugs* it's what I saw available for download from > http://cloud.centos.org/centos/7/images/ > > Apparently it's a gziped tar with a single file inside: > CentOS-7-x86_64-GenericCloud-20170131_01.raw > This .raw file is a disk image. That appears a bit redundant, and importd/machinectl pull-raw is not able to handle this. > > We support raw disk images and tarballs with OS trees in them, both > > compressed and non-compressed. > > > > There's currently a safety limit against overly large images enforced, > > of 8GiB. If the indicated image is larger than that, and that's > > intended we should probably bump this safety limit substantially (32G? > > 64G?), please file a github issue asking for this if this is the > > case. Or even better prep a PR, the fix is trivial: > > > > https://github.com/systemd/systemd/blob/master/src/import/pull-job.c#L530 > > Looks like it's *equal* to the limit. > > Before I make a PR here, am I going about running a centos container > with machinectl the best way here? > How are other people doing this? I don't think many people are using CentOS caontainers with nspawn... That said, there's a good chance that it works OKish. Note that "machinectl pull-raw" is just a helper to make downloading easy. But if you have images in weird formats, you can download them and place them in /var/lib/machines (with the .raw suffix), and machined/nspawn is happy. It doesn't really matter how the image gets there as long as it gets there, and "machinectl pull-raw" is just one way. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] How to use machinectl to get a running centos container?
On 3 March 2017 at 20:58, Lennart Poettering wrote: > On Fri, 03.03.17 12:34, Daurnimator (q...@daurnimator.com) wrote: > >> I'm trying to set up a centos 7 container with machinectl. >> I've tried to run: >> >> machinectl pull-raw --verify=no >> http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-1701.raw.tar.gz > > Hmm, what is a ".raw.tar.gz" file? That suffix makes no sense to me... *shrugs* it's what I saw available for download from http://cloud.centos.org/centos/7/images/ Apparently it's a gziped tar with a single file inside: CentOS-7-x86_64-GenericCloud-20170131_01.raw This .raw file is a disk image. >> This downloads the image, but then dies with: >> >> File overly large, refusing >> Failed to retrieve image file. (Wrong URL?) >> Exiting. > > How large is the file? - The .gz is 581M - The .tar is 8.1G - The .raw is 8.0G (8388608 K) >> Is there some other way I should be doing this? > > We support raw disk images and tarballs with OS trees in them, both > compressed and non-compressed. > > There's currently a safety limit against overly large images enforced, > of 8GiB. If the indicated image is larger than that, and that's > intended we should probably bump this safety limit substantially (32G? > 64G?), please file a github issue asking for this if this is the > case. Or even better prep a PR, the fix is trivial: > > https://github.com/systemd/systemd/blob/master/src/import/pull-job.c#L530 Looks like it's *equal* to the limit. Before I make a PR here, am I going about running a centos container with machinectl the best way here? How are other people doing this? ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] How to use machinectl to get a running centos container?
On Fri, 03.03.17 12:34, Daurnimator (q...@daurnimator.com) wrote: > I'm trying to set up a centos 7 container with machinectl. > I've tried to run: > > machinectl pull-raw --verify=no > http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-1701.raw.tar.gz Hmm, what is a ".raw.tar.gz" file? That suffix makes no sense to me... > This downloads the image, but then dies with: > > File overly large, refusing > Failed to retrieve image file. (Wrong URL?) > Exiting. How large is the file? > Is there some other way I should be doing this? We support raw disk images and tarballs with OS trees in them, both compressed and non-compressed. There's currently a safety limit against overly large images enforced, of 8GiB. If the indicated image is larger than that, and that's intended we should probably bump this safety limit substantially (32G? 64G?), please file a github issue asking for this if this is the case. Or even better prep a PR, the fix is trivial: https://github.com/systemd/systemd/blob/master/src/import/pull-job.c#L530 Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
