Hi, I installed the latest CentOS image on bare metal. Docker seems to work fine, but I get an error message at start-up about the docker-storage-setup service failing to start. I am happy with the current Docker storage setup, I just want want this storage service to be happy and not error at start-up.
This is what I get when I check the status of the service: # systemctl status docker-storage-setup.service -l ● docker-storage-setup.service - Docker Storage Setup Loaded: loaded (/usr/lib/systemd/system/docker-storage-setup.service; enabled; vendor preset: disabled) Active: failed (Result: exit-code) since Tue 2018-05-15 15:48:52 PDT; 28min ago Process: 992 ExecStart=/usr/bin/container-storage-setup (code=exited, status=1/FAILURE) Main PID: 992 (code=exited, status=1/FAILURE) May 15 15:48:50 blu systemd[1]: Starting Docker Storage Setup... May 15 15:48:52 blu container-storage-setup[992]: ERROR: Storage is already configured with devicemapper driver. Can't configure it with overlay2 driver. To override, remove /etc/sysconfig/docker-storage and retry. May 15 15:48:52 blu systemd[1]: docker-storage-setup.service: main process exited, code=exited, status=1/FAILURE May 15 15:48:52 blu systemd[1]: Failed to start Docker Storage Setup. May 15 15:48:52 blu systemd[1]: Unit docker-storage-setup.service entered failed state. May 15 15:48:52 blu systemd[1]: docker-storage-setup.service failed. And this is the current content of the docker-storage file: # cat /etc/sysconfig/docker-storage DOCKER_STORAGE_OPTIONS="--storage-driver devicemapper --storage-opt dm.fs=xfs --storage-opt dm.thinpooldev=/dev/mapper/cah_blu-docker--pool --storage-opt dm.use_deferred_removal=true --storage-opt dm.use_deferred_deletion=true " I'm a bit confused why the service complains about overlay2 driver when only devicemapper is mentioned in the docker-storage file. And this this the output of docker info: # docker info Containers: 1 Running: 0 Paused: 0 Stopped: 1 Images: 2 Server Version: 1.13.1 Storage Driver: devicemapper Pool Name: cah_blu-docker--pool Pool Blocksize: 524.3 kB Base Device Size: 10.74 GB Backing Filesystem: xfs Data file: Metadata file: Data Space Used: 153.6 MB Data Space Total: 1.189 TB Data Space Available: 1.189 TB Metadata Space Used: 823.3 kB Metadata Space Total: 3.003 GB Metadata Space Available: 3.002 GB Thin Pool Minimum Free Space: 118.9 GB Udev Sync Supported: true Deferred Removal Enabled: true Deferred Deletion Enabled: true Deferred Deleted Device Count: 0 Library Version: 1.02.140-RHEL7 (2017-05-03) Logging Driver: journald Cgroup Driver: systemd Plugins: Volume: local Network: bridge host macvlan null overlay Swarm: inactive Runtimes: docker-runc runc Default Runtime: docker-runc Init Binary: docker-init containerd version: (expected: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1) runc version: N/A (expected: 9df8b306d01f59d3a8029be411de015b7304dd8f) init version: N/A (expected: 949e6facb77383876aeff8a6944dde66b3089574) Security Options: seccomp WARNING: You're not using the default seccomp profile Profile: /etc/docker/seccomp.json selinux Kernel Version: 3.10.0-693.21.1.el7.x86_64 Operating System: CentOS Linux 7.1803 (Core) OSType: linux Architecture: x86_64 Number of Docker Hooks: 3 CPUs: 16 Total Memory: 31.24 GiB Name: blu ID: LJYJ:PZY4:TISK:L2EH:Q6UJ:U3K3:WY32:QLEI:P4FF:KQK3:7M6M:42LI Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Http Proxy: ... Registry: https://index.docker.io/v1/ Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false Registries: docker.io (secure) Thanks! Rares
