[Podman] Re: scp'ing a podman image to another host

El día miércoles, enero 10, 2024 a las 10:09:27 -0500, Charlie Doern escribió: > You should also usually get some sort of: > > Storing signaturesLoaded image(s): > > after > > Writing manifest to image destination > > > if this doesn't show up, then the image doesn't actually get stored. I > remember there being some compatibility issues over certain > types/sizes of images w/ scp. Can you throw a `-v` in there to see if > it tells you anything else? I did tests in two directions: 1) On the source host I run: $ podman run -it docker.io/library/busybox which gave me a local additional image and I transfered this to the target host: $ podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/suse latest c87c80c0911a 46 hours ago 6.31 GB registry.suse.com/bci/bci-base 15.4 5bd0e4152d92 2 weeks ago 123 MB docker.io/library/busybox latest 9211bbaa0dbd 3 weeks ago 4.5 MB $ podman image scp 9211bbaa0dbd srap57:: Copying blob 82ae998286b2 done Copying config 9211bbaa0d done Writing manifest to image destination Loaded image: sha256:9211bbaa0dbd68fed073065eb9f0a6ed00a75090a9235eca2554c62d1e75c58f i.e. this was transfered fine and shows up on the target host as: srap57dxr1:~> podman images REPOSITORY TAG IMAGE ID CREATED SIZE <none> <none> b677170ada05 3 minutes ago 1.89 GB registry.suse.com/bci/bci-base 15.4 5bd0e4152d92 2 weeks ago 123 MB <none> <none> 9211bbaa0dbd 3 weeks ago 4.49 MB apitzm@srap57dxr1:~> podman run -t 9211bbaa0dbd / # 2) I copied over the files to build the image to the target host: apitzm@srrp02dxr1:~$ scp -rp suse srap57dxr1:. Dockerfile 100% 5051 1.2MB/s 00:00 initSunRise.sh 100% 953 314.2KB/s 00:00 postgresql.conf 100% 29KB 5.0MB/s 00:00 testdb.dmp.gz 100% 388MB 110.0MB/s 00:03 keyFile 100% 893 63.2KB/s 00:00 and built the image there with: apitzm@srap57dxr1:~> podman build -t suse suse ... which worked also fine: ... STEP 58/59: ENTRYPOINT /usr/local/bin/start.sh --> 86dab7ac3e4d STEP 59/59: STOPSIGNAL SIGQUIT COMMIT suse --> a1ffb1f71791 Successfully tagged localhost/suse:latest a1ffb1f717911b4e11aaa89d94c4959562c625b0e203dd906797e60d019cde57 The big difference between the image 'docker.io/library/busybox' and mine is the size (4,5 MB ./. 6,1 GB). When I scp my big image I see in /tmp that the sftp-server writes there a temp. file as: ls -lh /tmp/tmp.RLHbJp9uzq -rw------- 1 apitzm apitzm 5.8G Jan 11 10:58 /tmp/tmp.RLHbJp9uzq and when this reached the size of 6 GB it gets deleted 3) I removed all container files on the target host: srap57dxr1:/ # rm -rf /data/guru/containers/* srap57dxr1:/ # du -sh /data/guru/containers/ 1.0K /data/guru/containers/ and started a fresh scp: $ podman image scp c87c80c0911a srap57:: ... Copying blob a5a080851ed7 done Copying blob 6fc7ff0cb132 done Copying config c87c80c091 done Writing manifest to image destination When the transfer has ended on the target host one can see 1. the big file in /tmp gets deleted 2. something was written below the area of the containers (which was empty before): srap57dxr1:/# ls -lh /tmp/tmp.5uuhYWqqQT -rw------- 1 apitzm apitzm 4.3G Jan 11 11:35 /tmp/tmp.5uuhYWqqQT srap57dxr1:/# ls -lh /tmp/tmp.5uuhYWqqQT -rw------- 1 apitzm apitzm 5.9G Jan 11 11:37 /tmp/tmp.5uuhYWqqQT srap57dxr1:/# ls -lh /tmp/tmp.5uuhYWqqQT ls: cannot access '/tmp/tmp.5uuhYWqqQT': No such file or directory srap57dxr1:/# du -sh /data/guru/containers/ 1.1G /data/guru/containers/ How can I get more messages about the failing process? matthias > On Wed, Jan 10, 2024 at 9:33 AM Matthias Apitz <guru(a)unixarea.de&gt; wrote: > > > > > I have an image on RH 8.x which runs fine (containing a SuSE SLES and > > PostgreSQL server): > > > > $ podman images > > REPOSITORY TAG IMAGE ID CREATED > > SIZE > > localhost/suse latest c87c80c0911a 26 hours ago > > 6.31 GB > > registry.suse.com/bci/bci-base 15.4 5bd0e4152d92 2 weeks ago > > 123 MB > > > > I created a connection to another host as: > > > > $ podman system connection list > > Name URI > > Identity Default > > srap57 ssh:// > > apitzm@srap57dxr1.dev.xxxxxx.org:22/run/user/200007/podman/podman.sock > > true > > > > To the other host I can SSH fine based on RSA public/private keys and > > podman is installed there to: > > > > $ ssh apitzm(a)srap57dxr1.dev.xxxxxx.org > > Last login: Wed Jan 10 14:05:12 2024 from 10.201.64.28 > > apitzm@srap57dxr1:~> podman version > > Client: Podman Engine > > Version: 4.7.2 > > API Version: 4.7.2 > > Go Version: go1.21.4 > > Built: Wed Nov 1 13:00:00 2023 > > > > When I now copy over the image with: > > > > $ podman image scp c87c80c0911a srap57:: > > > > it transfers the ~6 GByte (I can see them in /tmp as a big tar file of > > tar files) and at the end it says: > > > > ... > > Writing manifest to image destination > > $ > > > > (i.e. the shell prompt is there again) > > > > But on srap57dxr1.dev.xxxxxx.org I can't see anything of the image at the > > end. > > > > What I've done wrong? > > > > Thanks > > > > matthias > > > > -- > > Matthias Apitz, ✉ guru(a)unixarea.de, http://www.unixarea.de/ > > +49-176-38902045 > > Public GnuPG key: http://www.unixarea.de/key.pub > > > > I am not at war with Russia. Я не воюю с Россией. > > Ich bin nicht im Krieg mit Russland. > > _______________________________________________ > > Podman mailing list -- podman(a)lists.podman.io > > To unsubscribe send an email to podman-leave(a)lists.podman.io > > > _______________________________________________ > Podman mailing list -- podman(a)lists.podman.io > To unsubscribe send an email to podman-leave(a)lists.podman.io -- Matthias Apitz, ✉ guru(a)unixarea.de, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub I am not at war with Russia. Я не воюю с Россией. Ich bin nicht im Krieg mit Russland. _______________________________________________ Podman mailing list -- podman(a)lists.podman.io To unsubscribe send an email to podman-leave(a)lists.podman.io