Infrastructure » sepia

There is a bug in EL8 in glibc [1] that apparently won't be fixed until RHEL 8.4 where invoking "systemd-sysuser" crashes and fails to create users. This currently impacts the ability to use dnsmasq in sepia under RHEL because the RPM installation fails to create the dnsmasq user/group:

2020-11-11T00:25:38.190 INFO:teuthology.orchestra.run.smithi133:> sudo yum -y install dnsmasq
2020-11-11T00:25:38.591 INFO:teuthology.orchestra.run.smithi133.stdout:Updating Subscription Management repositories.
2020-11-11T00:25:39.248 INFO:teuthology.orchestra.run.smithi133.stdout:Red Hat Enterprise Linux 8 for x86_64 - BaseOS   82 kB/s | 2.4 kB     00:00
2020-11-11T00:25:39.347 INFO:teuthology.orchestra.run.smithi133.stdout:Red Hat Enterprise Linux 8 for x86_64 - AppStre  94 kB/s | 2.8 kB     00:00
2020-11-11T00:25:40.703 INFO:teuthology.orchestra.run.smithi133.stdout:Dependencies resolved.
2020-11-11T00:25:40.704 INFO:teuthology.orchestra.run.smithi133.stdout:================================================================================
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout: Package    Arch      Version         Repository                           Size
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout:================================================================================
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout:Installing:
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout: dnsmasq    x86_64    2.79-13.el8     rhel-8-for-x86_64-appstream-rpms    318 k
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout:Transaction Summary
2020-11-11T00:25:40.705 INFO:teuthology.orchestra.run.smithi133.stdout:================================================================================
2020-11-11T00:25:40.706 INFO:teuthology.orchestra.run.smithi133.stdout:Install  1 Package
2020-11-11T00:25:40.706 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:40.706 INFO:teuthology.orchestra.run.smithi133.stdout:Total download size: 318 k
2020-11-11T00:25:40.706 INFO:teuthology.orchestra.run.smithi133.stdout:Installed size: 647 k
2020-11-11T00:25:40.706 INFO:teuthology.orchestra.run.smithi133.stdout:Downloading Packages:
2020-11-11T00:25:40.739 INFO:teuthology.orchestra.run.smithi133.stdout:dnsmasq-2.79-13.el8.x86_64.rpm                  9.2 MB/s | 318 kB     00:00
2020-11-11T00:25:40.739 INFO:teuthology.orchestra.run.smithi133.stdout:--------------------------------------------------------------------------------
2020-11-11T00:25:40.739 INFO:teuthology.orchestra.run.smithi133.stdout:Total                                           9.1 MB/s | 318 kB     00:00
2020-11-11T00:25:40.740 INFO:teuthology.orchestra.run.smithi133.stdout:Running transaction check
2020-11-11T00:25:40.749 INFO:teuthology.orchestra.run.smithi133.stdout:Transaction check succeeded.
2020-11-11T00:25:40.750 INFO:teuthology.orchestra.run.smithi133.stdout:Running transaction test
2020-11-11T00:25:40.809 INFO:teuthology.orchestra.run.smithi133.stdout:Transaction test succeeded.
2020-11-11T00:25:40.812 INFO:teuthology.orchestra.run.smithi133.stdout:Running transaction
2020-11-11T00:25:40.925 INFO:teuthology.orchestra.run.smithi133.stdout:  Preparing        :                                                        1/1
2020-11-11T00:25:40.982 INFO:teuthology.orchestra.run.smithi133.stdout:  Running scriptlet: dnsmasq-2.79-13.el8.x86_64                             1/1
2020-11-11T00:25:40.982 INFO:teuthology.orchestra.run.smithi133.stdout:/var/tmp/rpm-tmp.HxSo0I: line 5: 28678 Segmentation fault      (core dumped) systemd-sysusers -  &> /dev/null <<SYSTEMD_INLINE_EOF
2020-11-11T00:25:40.982 INFO:teuthology.orchestra.run.smithi133.stdout:u dnsmasq - "Dnsmasq DHCP and DNS server" /var/lib/dnsmasq
2020-11-11T00:25:40.982 INFO:teuthology.orchestra.run.smithi133.stdout:SYSTEMD_INLINE_EOF
2020-11-11T00:25:40.983 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:40.983 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:41.026 INFO:teuthology.orchestra.run.smithi133.stdout:  Installing       : dnsmasq-2.79-13.el8.x86_64                             1/1
2020-11-11T00:25:41.026 INFO:teuthology.orchestra.run.smithi133.stdout:warning: group dnsmasq does not exist - using root
2020-11-11T00:25:41.027 INFO:teuthology.orchestra.run.smithi133.stdout:warning: group dnsmasq does not exist - using root
2020-11-11T00:25:41.027 INFO:teuthology.orchestra.run.smithi133.stdout:warning: group dnsmasq does not exist - using root
2020-11-11T00:25:41.027 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:41.306 INFO:teuthology.orchestra.run.smithi133.stdout:  Running scriptlet: dnsmasq-2.79-13.el8.x86_64                             1/1
2020-11-11T00:25:41.306 INFO:teuthology.orchestra.run.smithi133.stdout:/var/tmp/rpm-tmp.PzAQDA: line 3: 28680 Segmentation fault      (core dumped) systemd-sysusers &> /dev/null
2020-11-11T00:25:41.307 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:41.611 INFO:teuthology.orchestra.run.smithi133.stdout:/var/tmp/rpm-tmp.kAGGO5: line 6: 28712 Segmentation fault      (core dumped) /usr/bin/systemd-sysusers
2020-11-11T00:25:41.611 INFO:teuthology.orchestra.run.smithi133.stdout:warning: %triggerin(systemd-239-18.el8.x86_64) scriptlet failed, exit status 139
2020-11-11T00:25:41.611 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:41.611 INFO:teuthology.orchestra.run.smithi133.stderr:Error in <unknown> scriptlet in rpm package dnsmasq
2020-11-11T00:25:42.146 INFO:teuthology.orchestra.run.smithi133.stdout:  Verifying        : dnsmasq-2.79-13.el8.x86_64                             1/1
2020-11-11T00:25:42.147 INFO:teuthology.orchestra.run.smithi133.stdout:Installed products updated.
2020-11-11T00:25:44.543 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:44.544 INFO:teuthology.orchestra.run.smithi133.stdout:Installed:
2020-11-11T00:25:44.544 INFO:teuthology.orchestra.run.smithi133.stdout:  dnsmasq-2.79-13.el8.x86_64
2020-11-11T00:25:44.544 INFO:teuthology.orchestra.run.smithi133.stdout:
2020-11-11T00:25:44.544 INFO:teuthology.orchestra.run.smithi133.stdout:Complete!

2020-11-11T00:25:45.122 INFO:teuthology.orchestra.run.smithi133:> sudo systemctl status dnsmasq
2020-11-11T00:25:45.195 INFO:teuthology.orchestra.run.smithi133.stdout:â— dnsmasq.service - DNS caching server.
2020-11-11T00:25:45.196 INFO:teuthology.orchestra.run.smithi133.stdout:   Loaded: loaded (/usr/lib/systemd/system/dnsmasq.service; disabled; vendor preset: disabled)
2020-11-11T00:25:45.196 INFO:teuthology.orchestra.run.smithi133.stdout:   Active: inactive (dead)

Since I suspect we cannot get glibc-2.28-132.el8 in the lab, perhaps we can update our ansible scripts to not add every lab user to "/etc/gshadow"?

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1871397