centos7.6 64bit安装docker，下载32位的ubuntu镜像，并运行此镜像，且在容器中装上golang的开发环境 |
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centos版本： [root@localhost data]# cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) [root@localhost data]#centos是64位的： [root@localhost docker]# getconf LONG_BIT 64添加软件源信息： [root@localhost data]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo Loaded plugins: fastestmirror, langpacks adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo repo saved to /etc/yum.repos.d/docker-ce.repo安装docker-ce: [root@localhost data]# yum install docker-ce Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirrors.njupt.edu.cn * epel: mirrors.njupt.edu.cn * extras: mirrors.njupt.edu.cn * updates: mirrors.njupt.edu.cn docker-ce-stable | 3.5 kB 00:00:00 (1/2): docker-ce-stable/x86_64/primary_db | 32 kB 00:00:00 (2/2): docker-ce-stable/x86_64/updateinfo | 55 B 00:00:00 Resolving Dependencies --> Running transaction check查看docker版本： [root@localhost data]# docker -v Docker version 19.03.1, build 74b1e89启动docker服务： [root@localhost data]# systemctl start docker允许开机启动docker: [root@localhost data]# systemctl enable docker Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.测试hello-world: [root@localhost data]# docker run hello-world docker: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?. See 'docker run --help'. [root@localhost data]# systemctl start docker.s docker.service docker.socket [root@localhost data]# systemctl start docker [root@localhost data]# docker run hello-world Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world 1b930d010525: Pull complete Digest: sha256:451ce787d12369c5df2a32c85e5a03d52cbcef6eb3586dd03075f3034f10adcd Status: Downloaded newer image for hello-world:latest Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/发现下个hello-world速度有点慢，更新镜像源，在/etc/docker下面修改daemon.json文件如以下， 如果没有此文件，直接创建即可（我是直接创建的）： [root@localhost data]# cd /etc/docker/ [root@localhost docker]# ll total 4 -rw-------. 1 root root 244 Aug 29 21:45 key.json [root@localhost docker]# vim daemon.json { "registry-mirrors": ["http://hub-mirror.c.163.com"] }记着，更新源之后，要重启docker: [root@localhost docker]# systemctl restart docker以上，在centos上安装docker已完成。 由于业务需要，我得下个i386/ubuntu: [root@localhost docker]# docker pull i386/ubuntu Using default tag: latest latest: Pulling from i386/ubuntu e777d477ce90: Pull complete e0aa7d8210ab: Pull complete 05340dfc06a9: Pull complete f2f193f23089: Pull complete Digest: sha256:8fc36de4b957529f5a274da741739aa47b899368318c88bb6bebf9d9e6b0ccd0 Status: Downloaded newer image for i386/ubuntu:latest docker.io/i386/ubuntu:latestpull的速度巨快。 运行此ubuntu: [root@localhost nb]# docker run -it --name ubuntu386 i386/ubuntu /bin/bash root@099ac84db527:/# root@099ac84db527:/# getconf LONG_BIT 32开始搞golang了： root@099ac84db527:/# apt update Get:1 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB] Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB] Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB] Get:4 http://security.ubuntu.com/ubuntu bionic-security/main i386 Packages [463 kB] Get:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB] Get:6 http://archive.ubuntu.com/ubuntu bionic/universe i386 Packages [11.3 MB] Get:7 http://security.ubuntu.com/ubuntu bionic-security/universe i386 Packages [746 kB] Get:8 http://security.ubuntu.com/ubuntu bionic-security/restricted i386 Packages [5385 B] Get:9 http://security.ubuntu.com/ubuntu bionic-security/multiverse i386 Packages [4348 B] Get:10 http://archive.ubuntu.com/ubuntu bionic/main i386 Packages [1328 kB] Get:11 http://archive.ubuntu.com/ubuntu bionic/restricted i386 Packages [13.5 kB] Get:12 http://archive.ubuntu.com/ubuntu bionic/multiverse i386 Packages [177 kB] Get:13 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [745 kB] Get:14 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse i386 Packages [7418 B] Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/restricted i386 Packages [12.7 kB] Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages [1250 kB] Get:17 http://archive.ubuntu.com/ubuntu bionic-backports/universe i386 Packages [4219 B] Get:18 http://archive.ubuntu.com/ubuntu bionic-backports/main i386 Packages [2493 B] Fetched 16.5 MB in 7s (2425 kB/s) Reading package lists... Done Building dependency tree Reading state information... Done 4 packages can be upgraded. Run 'apt list --upgradable' to see them. root@099ac84db527:/# apt install golang Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: . . .golang版本： root@099ac84db527:/# go version go version go1.10.4 linux/386看golang的环境变量： 注意 GOPATH是自动生成的，指向当前用户目录下的go目录，这样方便服务器上的多人开发 root@099ac84db527:~/go/src# go env GOARCH="386" GOBIN="" GOCACHE="/root/.cache/go-build" GOEXE="" GOHOSTARCH="386" GOHOSTOS="linux" GOOS="linux" GOPATH="/root/go" GORACE="" GOROOT="/usr/lib/go-1.10" GOTMPDIR="" GOTOOLDIR="/usr/lib/go-1.10/pkg/tool/linux_386" GCCGO="gccgo" GO386="387" CC="gcc" CXX="g++" CGO_ENABLED="1" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m32 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build865623819=/tmp/go-build -gno-record-gcc-switches"写一个标准程序： root@099ac84db527:~/go/src/helloworld# cat helloworld.go package main import "fmt" func main() { fmt.Printf("Hello nb, %s!\n", "chenjuan") } root@099ac84db527:~/go/src/helloworld# go run helloworld.go Hello nb, chenjuan!至此，在centos特定64bit版本上安装docker，并下载32位的ubuntu镜像，并运行此镜像，且在容器中装上golang的开发环境，搞定，收工。 |
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