On Wed, 2016-02-10 at 21:40 -0500, Jason Brooks wrote: > > ----- Original Message ----- > > From: "Eric Paris" <[email protected]> > > To: "Farkas Levente" <[email protected]>, "CentOS devel" <centos- > > [email protected]>, [email protected] > > Sent: Wednesday, February 10, 2016 5:00:31 PM > > Subject: Re: [atomic] official centos-7 docker image are wrong > > > > I'm willing to bet one week's pay that RH didn't silently release > > the > > same version twice with different code... > > > > Wasn't there a problem that one of the base image build systems > > somehow > > didn't support file caps and so the caps were being silently lost? > > Maybe something about squashfs not understanding filecaps and rpm > > not > > considering that a permanent failure... Very very hazy... > > There was this: > > http://www.projectatomic.io/blog/2015/04/problems-with-ping-in- > containers-on-atomic-hosts/
Yeah, I (sorta) remember those issues too, but don't think that is it either. ping in the centos images doesn't have any file caps... In that case the problem was it had CAP_EFFECTIVE set and shouldn't have. My money would be on the environment where the iputils binary was installed which differs between Centos and RHEL... (but a much much smaller amount of money) -Eric > > > > I know I remember this bug in the back of my head... > > > > In any case if you look in the centos base image (after installing > > attr) > > > > # getfattr -n security.capability /usr/bin/ping > > /usr/bin/ping: security.capability: No such attribute > > > > # rpm -V iputils > > ........P /usr/bin/ping > > ........P /usr/bin/ping6 > > ........P /usr/sbin/arping > > ........P /usr/sbin/clockdiff > > > > So while the right version/rpm was installed the actual bits in the > > base image aren't what the rpm says they should be! The bug is in > > how > > the base image is created... I don't know where, but just building > > it > > again will likely just keep doing the wrong thing... > > > > I know this will trigger someone's mind who looking into this > > months > > and months ago... > > > > -Eric > > > > On Wed, 2016-02-10 at 11:15 +0100, Farkas Levente wrote: > > > hi, > > > according to this bug > > > https://bugzilla.redhat.com/show_bug.cgi?id=1142311 > > > rh silently replace iputils with the same version with a fixed > > > capabilities. > > > unfortunately official base centos-7 (ie. latest 7.2) docker > > > images > > > are > > > build with the wrong version, so these images should have to be > > > rebuild > > > with the proper version. > > > currently in the official centos7 docker images: > > > ------------------------------------- > > > # rpm -qi iputils > > > Name : iputils > > > Version : 20121221 > > > Release : 7.el7 > > > Architecture: x86_64 > > > Install Date: Wed 23 Dec 2015 06:09:24 PM UTC > > > Group : System Environment/Daemons > > > Size : 368577 > > > License : BSD and GPLv2+ > > > Signature : RSA/SHA256, Wed 25 Nov 2015 02:43:41 PM UTC, Key ID > > > 24c6a8a7f4a80eb5 > > > Source RPM : iputils-20121221-7.el7.src.rpm > > > Build Date : Fri 20 Nov 2015 07:12:19 PM UTC > > > Build Host : worker1.bsys.centos.org > > > Relocations : (not relocatable) > > > Packager : CentOS BuildSystem <http://bugs.centos.org> > > > Vendor : CentOS > > > URL : http://www.skbuff.net/iputils > > > Summary : Network monitoring tools including ping > > > Description : > > > The iputils package contains basic utilities for monitoring a > > > network, > > > including ping. The ping command sends a series of ICMP protocol > > > ECHO_REQUEST packets to a specified network host to discover > > > whether > > > the target machine is alive and receiving network traffic. > > > ------------------------------------- > > > > > > while in the centos repo: > > > ------------------------------------- > > > # rpm -qi iputils > > > Name : iputils > > > Version : 20121221 > > > Release : 7.el7 > > > Architecture: x86_64 > > > Install Date: Tue 15 Dec 2015 03:15:22 PM CET > > > Group : System Environment/Daemons > > > Size : 368577 > > > License : BSD and GPLv2+ > > > Signature : RSA/SHA256, Wed 25 Nov 2015 03:43:41 PM CET, Key ID > > > 24c6a8a7f4a80eb5 > > > Source RPM : iputils-20121221-7.el7.src.rpm > > > Build Date : Fri 20 Nov 2015 08:12:19 PM CET > > > Build Host : worker1.bsys.centos.org > > > Relocations : (not relocatable) > > > Packager : CentOS BuildSystem <http://bugs.centos.org> > > > Vendor : CentOS > > > URL : http://www.skbuff.net/iputils > > > Summary : Network monitoring tools including ping > > > Description : > > > The iputils package contains basic utilities for monitoring a > > > network, > > > including ping. The ping command sends a series of ICMP protocol > > > ECHO_REQUEST packets to a specified network host to discover > > > whether > > > the target machine is alive and receiving network traffic. > > > ------------------------------------- > > > imho it's a bug! without it ping not working from any docker > > > container > > > based on centos7. > > > > > > > >
