docker工人将cgroup驱动程序更改为systemd

我想要docker启动systemd cgroup驱动程序。 出于某种原因，它只在我的centos 7服务器上使用cgroupfs。

这里是启动configuration文件。

# systemctl cat docker # /usr/lib/systemd/system/docker.service [Unit] Description=Docker Application Container Engine Documentation=http://docs.docker.com After=network.target Wants=docker-storage-setup.service Requires=docker-cleanup.timer [Service] Type=notify NotifyAccess=all EnvironmentFile=-/etc/sysconfig/docker EnvironmentFile=-/etc/sysconfig/docker-storage EnvironmentFile=-/etc/sysconfig/docker-network Environment=GOTRACEBACK=crash Environment=DOCKER_HTTP_HOST_COMPAT=1 Environment=PATH=/usr/libexec/docker:/usr/bin:/usr/sbin ExecStart=/usr/bin/dockerd-current \ --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current \ --default-runtime=docker-runc \ --exec-opt native.cgroupdriver=systemd \ --userland-proxy-path=/usr/libexec/docker/docker-proxy-current \ $OPTIONS \ $DOCKER_STORAGE_OPTIONS \ $DOCKER_NETWORK_OPTIONS \ $ADD_REGISTRY \ $BLOCK_REGISTRY \ $INSECURE_REGISTRY ExecReload=/bin/kill -s HUP $MAINPID LimitNOFILE=1048576 LimitNPROC=1048576 LimitCORE=infinity TimeoutStartSec=0 Restart=on-abnormal MountFlags=slave [Install] WantedBy=multi-user.target # /etc/systemd/system/docker.service.d/docker-thinpool.conf [Service] ExecStart= ExecStart=/usr/bin/dockerd --storage-driver=devicemapper --storage-opt=dm.thinpooldev=/dev/mapper/docker-thinpool \ --storage-opt=dm.use_deferred_removal=true --storage-opt=dm.use_deferred_deletion=true EOF 

当启动docker运行像这样：

 # ps -fed |grep docker root 8436 1 0 19:13 ? 00:00:00 /usr/bin/dockerd-current --storage-driver=devicemapper --storage-opt=dm.thinpooldev=/dev/mapper/docker-thinpool --storage-opt=dm.use_deferred_removal=true --storage-opt=dm.use_deferred_deletion=true root 8439 8436 0 19:13 ? 00:00:00 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim docker-containerd-shim --metrics-interval=0 --start-timeout 2m --state-dir /var/run/docker/libcontainerd/containerd --runtime docker-runc 

这里是docker信息输出

  docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 1 Server Version: 1.12.6 Storage Driver: devicemapper Pool Name: docker-thinpool Pool Blocksize: 524.3 kB Base Device Size: 10.74 GB Backing Filesystem: xfs Data file: Metadata file: Data Space Used: 185.6 MB Data Space Total: 1.015 GB Data Space Available: 829.4 MB Metadata Space Used: 77.82 kB Metadata Space Total: 8.389 MB Metadata Space Available: 8.311 MB Thin Pool Minimum Free Space: 101.2 MB Udev Sync Supported: true Deferred Removal Enabled: true Deferred Deletion Enabled: true Deferred Deleted Device Count: 0 Library Version: 1.02.135-RHEL7 (2016-11-16) Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: null bridge overlay host Swarm: inactive Runtimes: runc Default Runtime: runc Security Options: seccomp Kernel Version: 3.10.0-514.16.1.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 Number of Docker Hooks: 2 CPUs: 1 Total Memory: 992.7 MiB Name: master ID: 6CFR:H7SN:MEU7:PNJH:UMSO:6MNE:43Q5:SF4K:Z25I:BKHP:53U4:63SO Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Insecure Registries: 127.0.0.0/8 Registries: docker.io (secure) 

我如何使它与systemd运行？

谢谢SR

Answer 1

由于我有两个configuration文件，所以我需要在第二个configuration文件中添加条目 – /etc/systemd/system/docker.service.d/docker-thinpool.conf ：

 --exec-opt native.cgroupdriver=systemd \ 

Answer 2

尝试重新启动泊坞窗服务：

 systemctl daemon-reload systemctl restart docker.service