contrib/rootfs-builder: Support timestamps and xz compression #598
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wking
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This needs more work for symlink and |
"busybox --list" includes "busybox" itself. Exclude that item from the list of symlinks. Signed-off-by: Alban Crequy <alban@kinvolk.io> Signed-off-by: W. Trevor King <wking@tremily.us>
The rootfs needs to have /proc, /dev, /sys pre-created because the runtime might not be able to create those, specially in user namespaces. Signed-off-by: Alban Crequy <alban@kinvolk.io> And sort them alphabetically. Signed-off-by: W. Trevor King <wking@tremily.us>
This saves some unnecessary network traffic for folks who already know what they want. Also guard against redundant configuration, like: $ DATE=20170907 STAGE3=stage3-amd64-20170907.tar.bz2 get-stage3.sh Signed-off-by: W. Trevor King <wking@tremily.us>
I'm not sure when the change happened (sometime since ff5e578, contrib/rootfs-builder: Support multiple architectures, 2017-09-20, opencontainers#479), but Gentoo is now using timestamps for some amd64 stages: $ curl http://distfiles.gentoo.org/releases/amd64/autobuilds/latest-stage3.txt # Latest as of Fri, 09 Mar 2018 15:00:02 +0000 # ts=1520607602 20180308T214502Z/stage3-amd64-20180308T214502Z.tar.xz 188851072 20180308T214502Z/hardened/stage3-amd64-hardened-20180308T214502Z.tar.xz 174759140 20180308T214502Z/hardened/stage3-amd64-hardened+nomultilib-20180308T214502Z.tar.xz 167639136 20180301T214503Z/hardened/stage3-amd64-hardened-selinux-20180301T214503Z.tar.xz 187319664 20180308T214502Z/stage3-amd64-nomultilib-20180308T214502Z.tar.xz 181866296 20180303/systemd/stage3-amd64-systemd-20180303.tar.bz2 281873162 20180225/uclibc/stage3-amd64-uclibc-hardened-20180225.tar.bz2 57147392 20180225/uclibc/stage3-amd64-uclibc-vanilla-20180225.tar.bz2 144490332 ... Signed-off-by: W. Trevor King <wking@tremily.us>
I'm not sure when the change happened (sometime since ff5e578, contrib/rootfs-builder: Support multiple architectures, 2017-09-20, opencontainers#479), but Gentoo is now using xz compression for some amd64 stages: $ curl http://distfiles.gentoo.org/releases/amd64/autobuilds/latest-stage3.txt # Latest as of Fri, 09 Mar 2018 15:00:02 +0000 # ts=1520607602 20180308T214502Z/stage3-amd64-20180308T214502Z.tar.xz 188851072 20180308T214502Z/hardened/stage3-amd64-hardened-20180308T214502Z.tar.xz 174759140 20180308T214502Z/hardened/stage3-amd64-hardened+nomultilib-20180308T214502Z.tar.xz 167639136 20180301T214503Z/hardened/stage3-amd64-hardened-selinux-20180301T214503Z.tar.xz 187319664 20180308T214502Z/stage3-amd64-nomultilib-20180308T214502Z.tar.xz 181866296 20180303/systemd/stage3-amd64-systemd-20180303.tar.bz2 281873162 20180225/uclibc/stage3-amd64-uclibc-hardened-20180225.tar.bz2 57147392 20180225/uclibc/stage3-amd64-uclibc-vanilla-20180225.tar.bz2 144490332 20180308T214502Z/stage3-x32-20180308T214502Z.tar.xz 205285160 20180308T214502Z/hardened/stage4-amd64-hardened+minimal-20180308T214502Z.tar.bz2 261776436 20180308T214502Z/hardened/stage4-amd64-hardened+minimal-nomultilib-20180308T214502Z.tar.bz2 251821245 20180308T214502Z/stage4-amd64-minimal-20180308T214502Z.tar.bz2 280918565 20180308T214502Z/stage4-amd64-minimal-nomultilib-20180308T214502Z.tar.bz2 268835860 20180303/systemd/stage4-amd64-systemd-20180303.tar.bz2 622067712 This commit adapts to that change, allowing us to continue to pull the vanilla stage3-amd64-20180308T214502Z.tar.xz. Signed-off-by: W. Trevor King <wking@tremily.us>
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Rebuild for BusyBox 1.28.0 (the old roots had v1.25.1). This
removes bin/catv and adds:
* /bin/arch
* /bin/factor
* /bin/fallocate
* /bin/fsfreeze
* /bin/hexedit
* /bin/ipneigh
* /bin/link
* /bin/logread
* /bin/lsscsi
* /bin/minips
* /bin/netcat
* /bin/nl
* /bin/nproc
* /bin/nuke
* /bin/partprobe
* /bin/paste
* /bin/resume
* /bin/run-init
* /bin/setfattr
* /bin/setpriv
* /bin/shred
* /bin/ssl_client
* /bin/svc
* /bin/w
* /bin/xxd
* /dev/
* /proc/
* /sys/
These were extracted with from
stage3-i486-20180307T214502Z.tar.xz and
stage3-amd64-20180308T214502Z.tar.xz. The stage3s had SHA512
hashs of [1,2] and valid signature by [3].
Generated with:
$ cd contrib/rootfs-builder
$ make ARCHES='i486 amd64'
$ cp -f rootfs-i486.tar.gz ../../rootfs-386.tar.gz
$ cp -f rootfs-amd64.tar.gz ../../rootfs-amd64.tar.gz
[1]: 31fb95e03f82d8d88113ec14fde8cd33d2837a2207a6a8d1fe7ea1c41f1f1c34a324a232d289a348117be248bd3a18725a7d8bbbafbabfbed5b689d1821c4ee9 stage3-amd64-20180308T214502Z.tar.xz
8a201c154ba5d886697137516ccaaba40df64297d2ccf63946bae9539649118185e8d5fcf33ea1b967bd77ee8988c57d0ffde16f795b20de52480177b8672947 stage3-i486-20180307T214502Z.tar.xz
[2]: Gentoo Linux Release Engineering (Automated Weekly Release Key) <releng@gentoo.org>
Primary key fingerprint: 13EB BDBE DE7A 1277 5DFD B1BA BB57 2E0E 2D18 2910
Signed-off-by: W. Trevor King <wking@tremily.us>
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Ok, I've cherry-picked @alban's 0453de2 and 5f15151 from #597 and added some more commits to improve |
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It fails in my test, in the latest version, it does have commands like 'arping/su/mount/passwd/umount/' . |
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On Mon, Mar 12, 2018 at 10:05:25AM +0000, 梁辰晔 (Liang Chenye) wrote:
It fails in my test, in the latest version…
Travis is happy with it [1], although I'm not sure those tests care
about the root tarballs. Can you provide details about the failure
you're seeing?
… it does have commands like 'arping/su/mount/passwd/umount/' .
It has those:
$ sha256sum rootfs-amd64.tar.gz
197f5faf022dd5e5d25336c5721f62b1714f9ed5c44055d6f4ab828ae11edf5d rootfs-amd64.tar.gz
$ tar -tf rootfs-amd64.tar.gz | grep '/arping\|/su$\|/mount$\|/passwd\|umount'
./bin/arping
./bin/mount
./bin/passwd
./bin/su
./bin/umount
./etc/passwd
[1]: https://travis-ci.org/opencontainers/runtime-tools/builds/351488881
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@wking the rootfs-amd64.tar.gz works good. I think it is caused by the Makefile: The commands before 'arping' are all symbolic links, but 'arping' is not. We can change it to |
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@liangchenye did you forget the flag for the |
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@alban thanks, so it should be |
Do you know where your |
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I checked again, still failed. Once I 'tar xvf' this file, there are only a few symlink files and most of them are not point to 'busybox'. |
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On Tue, Mar 13, 2018 at 12:06:44PM +0000, 梁辰晔 (Liang Chenye) wrote:
I downloaded this file:
http://distfiles.gentoo.org/releases/amd64/autobuilds/20180311T214502Z/stage3-amd64-20180311T214502Z.tar.xz
Its sha256sum is `af8…424 stage3-amd64-20180311T214502Z.tar.xz`.
Once I 'tar xvf' this file, there are only a few symlink files and
most of them are not point to 'busybox'.
That is the Gentoo stage3 pulled down by get-stage3.sh using this [1]
Makefile target. The make rule should drop it into
downloads/stage3-amd64-20180311T214502Z.tar.xz with a symlink
downloads/stage3-amd64-current.tar pointing at
downloads/stage3-amd64-20180311T214502Z.tar.xz. That's not the rootfs
tarball though.
The next step in building the rootfs tarball is to verify the
signature and unpack anything matching the rootfs-files wildcards into
rootfs/${ARCH}/bin/busybox [2]. Then we create symlinks for every
command supported by that particular BusyBox binary [3]. And finally
we tar it up into rootfs-${ARCH}.tar.gz [4].
So instead of looking at the Gentoo stage3 in downloads/, you should
build and look at the final rootfs-${ARCH}.tar.gz. Steps to reproduce
the tarballs I commit here are in the a7f94a2 commit message after
“Generated with”.
[1]: https://github.com/opencontainers/runtime-tools/blob/a7f94a268d2cbb5be522c433200aa44bd5f4d825/contrib/rootfs-builder/Makefile#L27-L29
[2]: https://github.com/opencontainers/runtime-tools/blob/a7f94a268d2cbb5be522c433200aa44bd5f4d825/contrib/rootfs-builder/Makefile#L8-L19
[3]: https://github.com/opencontainers/runtime-tools/blob/a7f94a268d2cbb5be522c433200aa44bd5f4d825/contrib/rootfs-builder/Makefile#L21-L25
[4]: https://github.com/opencontainers/runtime-tools/blob/a7f94a268d2cbb5be522c433200aa44bd5f4d825/contrib/rootfs-builder/Makefile#L5-L6
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The branch works for me. Here is the logs of my test: |
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@alban I found that in my test, |
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LGTM |
What version are you using? |
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GNU Make 3.81 on Ubuntu 14.04. |
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I'm not sure when the change happened (sometime since ff5e578, #479), but Gentoo is now using timestamps and xz compression for their amd64 stage3:
This commit adapts to that change, allowing us to continue to pull the vanilla
stage3-amd64-20180308T214502Z.tar.xz.