升級docker至最新版本
1.查找主機上關於Docker的軟件包
[root@pre1 ~]# rpm -qa | grep docker docker-1.13.1-88.git07f3374.el7.centos.x86_64 docker-common-1.13.1-88.git07f3374.el7.centos.x86_64 docker-client-1.13.1-88.git07f3374.el7.centos.x86_64
2.使用yum remove卸載軟件
[root@pre1 ~]# yum remove -y docker-1.13.1-88.git07f3374.el7.centos.x86_64 [root@pre1 ~]# yum remove –y docker-common-1.13.1-88.git07f3374.el7.centos.x86_64 [root@pre1 ~]# yum remove -y docker-client-1.13.1-88.git07f3374.el7.centos.x86_64
在使用docker命令會提示docker不存在
[root@pre1 ~]# docker version -bash: /usr/bin/docker: No such file or directory
3.使用curl升級到最新版
[root@pre1 ~]# curl -fsSL https://get.docker.com/ | sh
# Executing docker install script, commit: 2f4ae48
+ sh -c 'yum install -y -q yum-utils'
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
+ sh -c 'yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo'
…
Metadata Cache Created
+ '[' -n '' ']'
+ sh -c 'yum install -y -q docker-ce'
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-18.09.6-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for docker-ce-18.09.6-3.el7.x86_64.rpm is not installed
Importing GPG key 0x621E9F35:
Userid : "Docker Release (CE rpm) <docker@docker.com>"
Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
From : https://download.docker.com/linux/centos/gpg
If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:
sudo usermod -aG docker your-user
Remember that you will have to log out and back in for this to take effect!
WARNING: Adding a user to the "docker" group will grant the ability to run
containers which can be used to obtain root privileges on the
docker host.
Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
for more information.
4.查看一下安裝的版本
[root@pre1 ~]# docker version Client: Version: 18.09.6 API version: 1.39 Go version: go1.10.8 Git commit: 481bc77156 Built: Sat May 4 02:34:58 2019 OS/Arch: linux/amd64 Experimental: false Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
5.啟動docker
[root@pre1 ~]# systemctl start docker.service
6.加入開機自啟動
[root@pre1 ~]# systemctl enable docker Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
7.查看Docker系統信息
[root@pre1 ~]# docker info Containers: 1 Running: 0 Paused: 0 Stopped: 1 Images: 1 Server Version: 18.09.6 Storage Driver: overlay2 Backing Filesystem: xfs Supports d_type: false Native Overlay Diff: false Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: bb71b10fd8f58240ca47fbb579b9d1028eea7c84 runc version: 2b18fe1d885ee5083ef9f0838fee39b62d653e30 init version: fec3683 Security Options: seccomp Profile: default Kernel Version: 3.10.0-327.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 7.523GiB Name: pre1 ID: U5QL:5TI3:SWE7:FR2U:WYOG:D6RX:HHQI:TED3:FT2S:QDW2:VOLL:Z5OT Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false Product License: Community Engine