今天在搭建 code-push-server 中，通过 docker-stack deploy 部署时，报了个错，错误内容如下：
[code-push@VM_0_13_centos docker]$ sudo docker stack deploy -c docker-compose.yml code-push-server unsupported Compose file version: 3.7
查了一些资料，找到这篇文章 # Dockerfile & Docker Swarm & Docker Stack & Docker Compose
作者对 Dockerfile、Docker Swarm、Docker Stack、Docker Compose 几个指令做了详细的解释。
在 Docker Compose 版本与 docker 版本的对应关系中找到了我这个错误的原因，是因为我当前 docker 版本是 1.13.1(可以通过 docker info 或者 docker version 查看当前 docker 版本)，而我下载的 code-push-server 里的 compose 版本是 3.7，所以报错了。那么接下来就是要升级一下 docker 版本了。
升级 docker 到最新版本
- 第一步：查找主机上关于 Docker 的软件包
rpm -qa | grep docker– – 列出包含 docker 字段的软件的信息
[root@VM_0_13_centos ~]# rpm -qa | grep docker docker-1.13.1-103.git7f2769b.el7.centos.x86_64 docker-client-1.13.1-103.git7f2769b.el7.centos.x86_64 docker-common-1.13.1-103.git7f2769b.el7.centos.x86_64
- 第二步：使用 yum remove 卸载软件
[root@VM_0_13_centos ~]# yum remove docker-1.13.1-103.git7f2769b.el7.centos.x86_64 [root@VM_0_13_centos ~]# yum remove docker-client-1.13.1-103.git7f2769b.el7.centos.x86_64 [root@VM_0_13_centos ~]# yum remove docker-common-1.13.1-103.git7f2769b.el7.centos.x86_64
- 第三步：使用 curl 升级到最新版本
[root@VM_0_13_centos ~]# curl -fsSL https://get.docker.com/ | sh
# Executing docker install script, commit: f45d7c11389849ff46a6b4d94e0dd1ffebca32c1
+ sh -c 'yum install -y -q yum-utils'
Repository epel is listed more than once in the configuration
Package yum-utils-1.1.31-52.el7.noarch already installed and latest version
+ sh -c 'yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo'
Loaded plugins: fastestmirror, langpacks
Repository epel is listed more than once in the configuration
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
+ '[' stable '!=' stable ']'
+ sh -c 'yum makecache'
Loaded plugins: fastestmirror, langpacks
Repository epel is listed more than once in the configuration
Loading mirror speeds from cached hostfile
* elrepo: mirrors.tuna.tsinghua.edu.cn
docker-ce-stable | 3.5 kB 00:00:00
http://mirror-hk.koddos.net/elrepo/elrepo/el7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to mirror-hk.koddos.net:80; No route to host"
Trying other mirror.
elrepo | 2.9 kB 00:00:00
Not using downloaded elrepo/repomd.xml because it is older than what we have:
Current : Sun Nov 3 16:15:03 2019
Downloaded: Sun Nov 3 13:15:03 2019
epel | 5.4 kB 00:00:00
extras | 2.9 kB 00:00:00
os | 3.6 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/14): docker-ce-stable/x86_64/updateinfo | 55 B 00:00:00
(2/14): docker-ce-stable/x86_64/filelists_db | 18 kB 00:00:00
(3/14): docker-ce-stable/x86_64/primary_db | 37 kB 00:00:00
(4/14): epel/7/x86_64/prestodelta | 5.2 kB 00:00:00
(5/14): docker-ce-stable/x86_64/other_db | 111 kB 00:00:00
(6/14): epel/7/x86_64/other_db | 3.3 MB 00:00:00
(7/14): epel/7/x86_64/updateinfo_zck | 1.5 MB 00:00:00
(8/14): extras/7/x86_64/other_db | 100 kB 00:00:00
(9/14): os/7/x86_64/other_db | 2.6 MB 00:00:00
(10/14): extras/7/x86_64/filelists_db | 207 kB 00:00:00
(11/14): updates/7/x86_64/other_db | 243 kB 00:00:00
(12/14): updates/7/x86_64/filelists_db | 2.1 MB 00:00:00
(13/14): os/7/x86_64/filelists_db | 7.3 MB 00:00:00
(14/14): epel/7/x86_64/filelists_db | 12 MB 00:00:02
(1/2): elrepo/other_db | 34 kB 00:00:00
(2/2): elrepo/filelists_db | 39 kB 00:00:00
Metadata Cache Created
+ '[' -n '' ']'
+ sh -c 'yum install -y -q docker-ce'
Repository epel is listed more than once in the configuration
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-19.03.4-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for docker-ce-19.03.4-3.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.
- 第四步：重启 Docker
[root@VM_0_13_centos ~]# systemctl restart docker - 第五步：设置 Docker 开机自启
[root@VM_0_13_centos ~]# systemctl enable docker - 第六步：查看 docker 信息
[root@VM_0_13_centos ~]# docker version Client: Docker Engine - Community Version: 19.03.4 API version: 1.40 Go version: go1.12.10 Git commit: 9013bf583a Built: Fri Oct 18 15:52:22 2019 OS/Arch: linux/amd64 Experimental: false Server: Docker Engine - Community Engine: Version: 19.03.4 API version: 1.40 (minimum version 1.12) Go version: go1.12.10 Git commit: 9013bf583a Built: Fri Oct 18 15:50:54 2019 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.2.10 GitCommit: b34a5c8af56e510852c35414db4c1f4fa6172339 runc: Version: 1.0.0-rc8+dev GitCommit: 3e425f80a8c931f88e6d94a8c831b9d5aa481657 docker-init: Version: 0.18.0 GitCommit: fec3683
可以看到 docker 版本已经升级到了 19.03.4
重启旧容器
升级完 Docker 版本之后，原先的镜像需要重新启动，通过 docker images 命令可以看到之前的镜像，使用 docker ps -a 可以看到停止的容器。
[root@VM_0_13_centos ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx latest 5a9061639d0a 2 weeks ago 126MB b3log/solo latest dcdb7cb3ca38 2 weeks ago 151MB b3log/lute-http latest 1aa3c892dc68 4 weeks ago 20.9MB [root@VM_0_13_centos ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 68ce54922a68 dcdb7cb3ca38 "java -cp WEB-INF/li…" 2 weeks ago Exited (143) 3 minutes ago solo 9ec87b60e275 5a9061639d0a "nginx -g 'daemon of…" 2 weeks ago Exited (0) 3 minutes ago nginx 2c8ba9a68c0c 383867b75fd2 "docker-entrypoint.s…" 3 weeks ago Exited (0) 3 minutes ago mysql
- 第七步：使用
docker start container-name/container-id启动容器
[root@VM_0_13_centos ~]# docker start nginx Error response from daemon: Unknown runtime specified docker-runc Error: failed to start containers: nginx
这里报了个错：Error response from daemon: Unknown runtime specified docker-runc
查阅资料后得知这是当您从不兼容的版本升级 docker 并且升级后无法启动 docker 容器时会出现这种情况，解决办法如下
[root@VM_0_13_centos ~]# grep -rl 'docker-runc' /var/lib/docker/containers/ | xargs sed -i 's/docker-runc/runc/g' [root@VM_0_13_centos ~]# systemctl stop docker [root@VM_0_13_centos ~]# systemctl start docker
然后再启动之前的容器就可以了。
欢迎来到这里！
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