docker将cgroup驱动程序更改为systemd [英] docker change cgroup driver to systemd
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问题描述
我想让docker从systemd cgroup驱动程序开始.由于某种原因，它仅在我的centos 7服务器上使用cgroupfs.
I want to docker to start with systemd cgroup driver. for some reason it using only cgroupfs on my centos 7 server.
这是启动配置文件.
# 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
启动docker这样运行时:
when start docker running like this:
# 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
这是docker info输出
here is docker info output
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)
如何使其与systemd一起运行?
How can I make it run with systemd?
谢谢 SR
推荐答案
由于我有两个配置文件，因此我还需要在第二个配置文件中添加条目-/etc/systemd/system/docker.service.d/docker-thinpool.conf:
Since I have two configuration file I need to add the entry in the second config file also -- /etc/systemd/system/docker.service.d/docker-thinpool.conf:
--exec-opt native.cgroupdriver=systemd \
这篇关于docker将cgroup驱动程序更改为systemd的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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