Hello,
I am able to run the openSuSE container opensuse/leap:42.3 from Docker Hub. I am using a Ubuntu 16.04 server as my host.
However, when installing software via zypper in the container, I am seeing occasional errors of the form:
(38/42) Installing: policycoreutils-2.5-6.4.1.x86_64 .....................................................................................
Additional rpm output:
Failed to connect to bus: No such file or directory
Created symlink from /etc/systemd/system/multi-user.target.wants/restorecond.service to /usr/lib/systemd/system/restorecond.service.
Looking around, it looks like this is related to systemd not being used as the default init service for the container. However, that seems to be wrong, since:
- /sbin/init is present and symlinked to systemd
- systemd appears to have been the default since SuSE 12.3
- Attempting to install systemd or systemd-sysvinit indicates that those packages are already initialized.
I also looked at other suggestions:
- Running the container with /sbin/init as the entrypoint / default for CMD. That results in the container hanging completely.
docker run -i -t --rm -m 4g -e container=docker opensuse/leap:42.3 /sbin/init
- Mounting /run and /sys/fs/cgroups from host to container. No luck. Same problem as above.
docker run -i -t --rm -m 4g -e container-docker -v /run -v /sys/fs/cgroup:/sys/fs/cgroup:ro ose /sbin/init
In both cases, the Docker daemon or container or host freezes with:
!!!!!!] Failed to mount API filesystems, freezing.
Freezing execution.
I am OK with ignoring the original error but it seems like this could cause other less obvious errors.
What should I do to fix this? I would prefer not to run the containers with SYS_ADMIN privileges or as a fully privileged container.
Other details:
Container:
5c652285b5a4:/ # uname -a
Linux 5c652285b5a4 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:43:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Host:
cdpteam@cxtlxbld2:~$ uname -a
Linux cxtlxbld2 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:43:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Thank you,
Docker Info:
cdpteam@cxtlxbld2:~$ docker info
Containers: 1
Running: 1
Paused: 0
Stopped: 0
Images: 11
Server Version: 18.03.1-ce
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: cc-runtime runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.13.0-39-generic
Operating System: Ubuntu 16.04.4 LTS
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 15.39GiB
Name: cxtlxbld2
ID: 44MA:AQXY:4ZTA:SMTC:U6SD:RWRR:YMRX:N2W3:BNMI:SKIV:JBX2:YVYN
Docker Root Dir: /z/d
Debug Mode (client): false
Debug Mode (server): true
File Descriptors: 26
Goroutines: 37
System Time: 2018-08-01T18:01:11.407778634Z
EventsListeners: 0
Registry: https://index.docker.io/v1/
Labels:
Experimental: true
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
Docker Version:
Client:
Version: 18.03.1-ce
API version: 1.37
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:17:20 2018
OS/Arch: linux/amd64
Experimental: false
Orchestrator: swarm
Server:
Engine:
Version: 18.03.1-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:15:30 2018
OS/Arch: linux/amd64
Experimental: true
Vijai.