我尝试在CentOS 7.7上安装Kubernetes，因此，我必须先安装docker。我按照Kubernetes文档安装docker-ce并修改daemon.json文件。
$ yum install yum-utils device-mapper-persistent-data lvm2
$ yum-config-manager --add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
$ yum update && yum install \
containerd.io-1.2.10 \
docker-ce-19.03.4 \
docker-ce-cli-19.03.4
$ mkdir /etc/docker
$ cat > /etc/docker/daemon.json <<EOF
{
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m"
},
"storage-driver": "overlay2",
"storage-opts": [
"overlay2.override_kernel_check=true"
]
}
EOF
$ mkdir -p /etc/systemd/system/docker.service.d
$ systemctl daemon-reload
$ systemctl start docker字符串
当启动Docker服务时，它说：
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.$ systemctl status -l docker.service
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: failed (Result: start-limit) since Tue 2020-01-07 14:44:11 UTC; 7min ago
Docs: https://docs.docker.com
Process: 9879 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
Main PID: 9879 (code=exited, status=1/FAILURE)
Jan 07 14:44:09 love61y2222c.mylabserver.com systemd[1]: Failed to start Docker Application Container Engine.
Jan 07 14:44:09 love61y2222c.mylabserver.com systemd[1]: Unit docker.service entered failed state.
Jan 07 14:44:09 love61y2222c.mylabserver.com systemd[1]: docker.service failed.
Jan 07 14:44:11 love61y2222c.mylabserver.com systemd[1]: docker.service holdoff time over, scheduling restart.
Jan 07 14:44:11 love61y2222c.mylabserver.com systemd[1]: Stopped Docker Application Container Engine.
Jan 07 14:44:11 love61y2222c.mylabserver.com systemd[1]: start request repeated too quickly for docker.service
Jan 07 14:44:11 love61y2222c.mylabserver.com systemd[1]: Failed to start Docker Application Container Engine.
Jan 07 14:44:11 love61y2222c.mylabserver.com systemd[1]: Unit docker.service entered failed state.
Jan 07 14:44:11 love61y2222c.mylabserver.com systemd[1]: docker.service failed.$ journalctl -xe
.
.
-- Unit docker.service has begun starting up.
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.722780008Z" level=info msg="Starting up"
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.728447514Z" level=info msg="parsed scheme: \"unix\"" module=grpc
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.728479813Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.728510943Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.728526075Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.732325726Z" level=info msg="parsed scheme: \"unix\"" module=grpc
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.733844225Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.733880664Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.733898044Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: time="2020-01-07T15:28:25.743421350Z" level=warning msg="Using pre-4.0.0 kernel for overlay2, mount failures may require
Jan 07 15:28:25 love61y2223c.mylabserver.com dockerd[29628]: failed to start daemon: error initializing graphdriver: overlay2: the backing xfs filesystem is formatted without d_type
Jan 07 15:28:25 love61y2223c.mylabserver.com systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Jan 07 15:28:25 love61y2223c.mylabserver.com systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit docker.service has failed.
--
-- The result is failed.
Jan 07 15:28:25 love61y2223c.mylabserver.com systemd[1]: Unit docker.service entered failed state.
Jan 07 15:28:25 love61y2223c.mylabserver.com systemd[1]: docker.service failed.谁能告诉我为什么修改daemon.json文件后docker service start失败？以及如何正确指定cgroupdriver，default log-driver和default storage-driver？
任何建议将不胜感激。谢谢。
2条答案
按热度按时间xytpbqjk1#
这个错误指出了一个问题，迫使docker在没有正确的备份文件系统的情况下使用overlay2：
字符串
有关不同存储驱动程序的备份文件系统需求的详细信息，请参阅docker的表格：https://docs.docker.com/storage/storagedriver/#supported-backing-filesystems
修复方法是删除存储驱动程序设置，或者使用所需的选项修复备份文件系统以支持overlay2：
型
有关更改xfs选项的详细信息，这似乎需要重建文件系统。有关所需步骤的详细信息，请参阅this answer。
nkkqxpd92#
有一个类似的问题，似乎docker在默认安装
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock中使用了以下命令，要使用/etc/docker/daemon.jdon，我必须创建此路径/etc/systemd/system/docker.service.d，然后在其中创建docker.conf并添加以下内容字符串
最后，使用
sudo systemctl daemon-reload重新加载守护进程并重新启动服务sudo systemctl restart docker，您应该可以开始了