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DescriptionJan Pazdziora (Red Hat)
2016-12-21 08:34:27 UTC
Description of problem:
For some time, running
# docker run --rm -ti rhel7 /usr/sbin/init
made systemd run in container just fine. After upgrade of oci-systemd-hook, it now produces errors.
Version-Release number of selected component (if applicable):
oci-systemd-hook-0.1.4-7.gita9c551a.el7
How reproducible:
Deterministic.
Steps to Reproduce:
1. Have RHEL 7 machine with docker 1.10 installed.
2. Check that running docker run --rm -ti rhel7 /usr/sbin/init produces nice output from systemd.
3. Use latest Extras, upgrade docker to 1.12, restart the docker daemon, check that the same docker run command still works.
4. Upgrade oci-systemd-hook, restart the docker daemon.
5. Run docker run --rm -ti rhel7 /usr/sbin/init
Actual results:
# docker run --rm -ti rhel7 /usr/sbin/init
systemd 219 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
Detected virtualization docker.
Detected architecture x86-64.
Welcome to Red Hat Enterprise Linux Server 7.3 (Maipo)!
Set hostname to <a50fa9ae159c>.
Failed to install release agent, ignoring: No such file or directory
Failed to create root cgroup hierarchy: Read-only file system
Failed to allocate manager object: Read-only file system
[!!!!!!] Failed to allocate manager object, freezing.
AVC denial
type=AVC msg=audit(1482308994.962:565): avc: denied { remount } for pid=16520 comm="systemd" scontext=system_u:system_r:svirt_lxc_net_t:s0:c87,c549 tcontext=system_u:object_r:svirt_sandbox_file_t:s0:c87,c549 tclass=filesystem
gets logged but even in Permissive the execution fails.
Expected results:
# docker run --rm -ti rhel7 /usr/sbin/initsystemd 219 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
Detected virtualization docker.
Detected architecture x86-64.
Welcome to Red Hat Enterprise Linux Server 7.3 (Maipo)!
Set hostname to <c8ed534635b3>.
[ OK ] Created slice Root Slice.
[ OK ] Created slice System Slice.
[ OK ] Reached target Swap.
[ OK ] Created slice system-getty.slice.
[ OK ] Reached target Remote File Systems.
[ OK ] Listening on Delayed Shutdown Socket.
[ OK ] Listening on Journal Socket.
Starting Journal Service...
[ OK ] Reached target Paths.
[...]
Additional info:
Downgrading to oci-systemd-hook-0.1.4-6.git337078c.el7 from released rhel-7-server-extras-rpms makes things work again.
Comment 1Jan Pazdziora (Red Hat)
2016-12-21 08:54:22 UTC
This bug was around for so long that I completely forgot I've already reported it in November.
*** This bug has been marked as a duplicate of bug 1393312 ***
Description of problem: For some time, running # docker run --rm -ti rhel7 /usr/sbin/init made systemd run in container just fine. After upgrade of oci-systemd-hook, it now produces errors. Version-Release number of selected component (if applicable): oci-systemd-hook-0.1.4-7.gita9c551a.el7 How reproducible: Deterministic. Steps to Reproduce: 1. Have RHEL 7 machine with docker 1.10 installed. 2. Check that running docker run --rm -ti rhel7 /usr/sbin/init produces nice output from systemd. 3. Use latest Extras, upgrade docker to 1.12, restart the docker daemon, check that the same docker run command still works. 4. Upgrade oci-systemd-hook, restart the docker daemon. 5. Run docker run --rm -ti rhel7 /usr/sbin/init Actual results: # docker run --rm -ti rhel7 /usr/sbin/init systemd 219 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN) Detected virtualization docker. Detected architecture x86-64. Welcome to Red Hat Enterprise Linux Server 7.3 (Maipo)! Set hostname to <a50fa9ae159c>. Failed to install release agent, ignoring: No such file or directory Failed to create root cgroup hierarchy: Read-only file system Failed to allocate manager object: Read-only file system [!!!!!!] Failed to allocate manager object, freezing. AVC denial type=AVC msg=audit(1482308994.962:565): avc: denied { remount } for pid=16520 comm="systemd" scontext=system_u:system_r:svirt_lxc_net_t:s0:c87,c549 tcontext=system_u:object_r:svirt_sandbox_file_t:s0:c87,c549 tclass=filesystem gets logged but even in Permissive the execution fails. Expected results: # docker run --rm -ti rhel7 /usr/sbin/initsystemd 219 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN) Detected virtualization docker. Detected architecture x86-64. Welcome to Red Hat Enterprise Linux Server 7.3 (Maipo)! Set hostname to <c8ed534635b3>. [ OK ] Created slice Root Slice. [ OK ] Created slice System Slice. [ OK ] Reached target Swap. [ OK ] Created slice system-getty.slice. [ OK ] Reached target Remote File Systems. [ OK ] Listening on Delayed Shutdown Socket. [ OK ] Listening on Journal Socket. Starting Journal Service... [ OK ] Reached target Paths. [...] Additional info: Downgrading to oci-systemd-hook-0.1.4-6.git337078c.el7 from released rhel-7-server-extras-rpms makes things work again.