这篇文章主要介绍“containerd怎么编译”，在日常操作中，相信很多人在containerd怎么编译问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”containerd怎么编译”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

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编译containerd/runc

1. 任意公有云厂商购买一台虚拟机，绑fip（116.196.115.229）

2. 登录vm安装go，并设置GOROOT/GOPATH环境变量
   [root@containerd bin]# wget https://dl.google.com/go/go1.12.5.linux-amd64.tar.gz
   [root@containerd bin]# tar -xvf go1.12.5.linux-amd64.tar.gz -C /usr/local

   [root@containerd bin]# /usr/local/go/bin/go version

   go version go1.12.5 linux/amd64
   编辑/root/.bash_profile文件，添加如下设置后sourcePATH=$PATH:/usr/local/go/bin
   export PATH
   
   export GOROOT=/usr/local/go/
   export GOPATH=/root/go[root@containerd ~]# source .bash_profile

3. Build the development environment

   [root@containerd ~]# go get github.com/containerd/containerd
   [root@containerd ~]# wget -c https://github.com/google/protobuf/releases/download/v3.5.0/protoc-3.5.0-linux-x86_64.zip
   [root@containerd ~]# unzip protoc-3.5.0-linux-x86_64.zip -d /usr/local
   [root@containerd ~]# yum install -y btrfs-progs-devel libseccomp-devel

4. 编译runc
   [root@containerd ~]# go get github.com/opencontainers/runc[root@containerd containerd]# cd $GOPATH/src/github.com/opencontainers/runc

   [root@containerd runc]# make

   go build -buildmode=pie  -ldflags "-X main.gitCommit="eb4aeed24ffbf8e2d740fafea39d91faa0ee84d0">

   [root@containerd runc]# make install

   install -D -m0755 runc /usr/local/sbin/runc

   [root@containerd runc]# ls -rtl /usr/local/sbin

   total 11752

   -rwxr-xr-x 1 root root 12031832 May 10 17:33 runc

   [root@containerd runc]# runc --version

   runc version 1.0.0-rc8+dev

   commit: eb4aeed24ffbf8e2d740fafea39d91faa0ee84d0

   spec: 1.0.1-dev

5. 编译containerd
   [root@containerd runc]# cd $GOPATH/src/github.com/containerd/containerd
   [root@containerd containerd]# make
   + bin/ctr
   + bin/containerd
   + bin/containerd-stress
   + bin/containerd-shim
   + bin/containerd-shim-runc-v1
   + bin/containerd-shim-runc-v2
   + binaries
   [root@containerd containerd]# make install
   + install bin/ctr bin/containerd bin/containerd-stress bin/containerd-shim bin/containerd-shim-runc-v1 bin/containerd-shim-runc-v2

   [root@containerd containerd]# ls -rtl /usr/local/bin

   total 133152

   -rwxr-x--- 1 root root  4433736 Nov 14  2017 protoc

   -rwxr-xr-x 1 root root 29709728 May 10 17:35 ctr

   -rwxr-xr-x 1 root root 51831136 May 10 17:35 containerd

   -rwxr-xr-x 1 root root 25094688 May 10 17:35 containerd-stress

   -rwxr-xr-x 1 root root  7302016 May 10 17:35 containerd-shim

   -rwxr-xr-x 1 root root  8980256 May 10 17:35 containerd-shim-runc-v1

   -rwxr-xr-x 1 root root  8980320 May 10 17:35 containerd-shim-runc-v2

   
   [root@containerd containerd]# containerd --version
   containerd github.com/containerd/containerd v1.2.0-551-g57fbb16 57fbb16234fa6c8a61e5e907a4148ea3b05bce1d

6. containerd以daemon方式运行

1. 准备containered.service文件
   [root@containerd ~]# cat /usr/lib/systemd/system/containerd.service
   [Unit]
   Description=containerd container runtime
   Documentation=https://containerd.io
   After=network.target
   
   [Service]
   ExecStartPre=-/sbin/modprobe overlay
   ExecStart=/usr/local/bin/containerd
   
   Delegate=yes
   KillMode=process
   # Having non-zero Limit*s causes performance problems due to accounting overhead
   # in the kernel. We recommend using cgroups to do container-local accounting.
   LimitNPROC=infinity
   LimitCORE=infinity
   LimitNOFILE=1048576
   # Comment TasksMax if your systemd version does not supports it.
   # Only systemd 226 and above support this version.
   TasksMax=infinity
   
   [Install]
   WantedBy=multi-user.target

2. enable设置开机自启动
   [root@containerd system]# systemctl enable containerd.service
   Created symlink from /etc/systemd/system/multi-user.target.wants/containerd.service to /usr/lib/systemd/system/containerd.service.

3. 准备containerd配置文件

   [root@containerd ~]# cat /etc/containerd/config.toml

   subreaper = true  

   oom_score = -999

   [debug]

    level = "debug"

   [metrics]

    address = "127.0.0.1:1338"

   [plugins.linux]

    runtime = "runc"

    shim_debug = true

4. 启动containerd服务
   [root@containerd system]# systemctl start containerd.service
   [root@containerd system]# systemctl status containerd.service
   ● containerd.service - containerd container runtime
      Loaded: loaded (/usr/lib/systemd/system/containerd.service; enabled; vendor preset: disabled)
      Active: active (running) since Fri 2019-05-10 17:55:35 CST; 4s ago
        Docs: https://containerd.io
     Process: 18319 ExecStartPre=/sbin/modprobe overlay (code=exited, status=0/SUCCESS)
    Main PID: 18321 (containerd)
       Tasks: 13
      Memory: 25.1M
      CGroup: /system.slice/containerd.service
              └─18321 /usr/local/bin/containerd
   
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396003271+08:00" level=error msg="Failed to load cni during init, please check CRI plugin status before ... cni config"
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396193437+08:00" level=info msg="loading plugin \"io.containerd.grpc.v1.introspection\"..." type=io.containerd.grpc.v1
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396280636+08:00" level=info msg="Start subscribing containerd event"
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396365663+08:00" level=info msg="Start recovering state"
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396383092+08:00" level=info msg=serving... address=/run/containerd/containerd.sock.ttrpc
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396415058+08:00" level=info msg=serving... address=/run/containerd/containerd.sock
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396427216+08:00" level=info msg="containerd successfully booted in 0.003786s"
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396435091+08:00" level=info msg="Start event monitor"
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396459564+08:00" level=info msg="Start snapshots syncer"
   May 10 17:55:35 containerd containerd[18321]: time="2019-05-10T17:55:35.396468105+08:00" level=info msg="Start streaming server"
   Hint: Some lines were ellipsized, use -l to show in full.

准备rootfs和spec

1. 找另外一台安装了整套docker的机器（此处用本地oracle linux vm 10.12.162.67），制作测试所需的rootfs（bundle）文件

1. 创建 busybox/rootfs目录
   [root@localhost ~]# mkdir -p busybox/rootfs

2. 拉取busybox镜像

   [root@localhost ~]# docker pull busybox

   Using default tag: latest

   latest: Pulling from library/busybox

   53071b97a884: Pull complete

   Digest: sha256:32f65f5aae307c171fc69ce52be3c8b09675164a610a88efa607449311186378

   Status: Downloaded newer image for busybox:latest

3. 创建docker

   [root@localhost ~]# docker create --name tempbusybox busybox

   85b6e32db75da001669656b452a9a65fc2de7f1a9faac95c5aedf6de1127fa15

4. 导出rootfs和spec

   [root@localhost ~]# docker export tempbusybox | tar -C busybox/rootfs -xf -

   [root@localhost ~]# cd busybox/ &&  /usr/bin/docker-runc spec

   [root@localhost busybox]# ls

   config.json  rootfs

   [root@localhost busybox]# ls rootfs/

   bin  dev  etc  home  proc  root  sys  tmp  usr  var

5. 将rootfs和spec 拷贝到containered测试节点 116.196.115.229
   [root@localhost ~]# scp -r busybox/ root@116.196.115.229:/root

测试

1. [root@containerd busybox]# cd /root/busybox

2. 利用containerd cli （/usr/local/bin/ctr）运行容器
   [root@containerd busybox]# ctr run -t -d --rootfs rootfs busybox /bin/sh

   [root@containerd busybox]# ctr container list

   CONTAINER    IMAGE    RUNTIME                           

   busybox      -        io.containerd.runtime.v1.linux

   [root@containerd busybox]# ps -ef |grep container

   root      9539     1  0 21:22 ?        00:00:03 /usr/local/bin/containerd

   root     15285  9539  0 22:02 ?        00:00:00 containerd-shim -namespace default -workdir /var/lib/containerd/io.containerd.runtime.v1.linux/default/busybox -address /run/containerd/containerd.sock -containerd-binary /usr/local/bin/containerd -debug

3. 登录容器验证

   [root@containerd busybox]# ctr tasks list

   TASK       PID      STATUS    

   busybox    15301    RUNNING

   [root@containerd busybox]# ctr tasks exec -t  --exec-id 15301 busybox /bin/sh

   / # hostname

   containerd

   / # ip a

   1: lo: mtu 65536 qdisc noqueue qlen 1

       link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

       inet 127.0.0.1/8 scope host lo

          valid_lft forever preferred_lft forever

       inet6 ::1/128 scope host

          valid_lft forever preferred_lft forever

4. stop容器
   [root@containerd busybox]# ctr tasks kill --signal 9 busybox

   [root@containerd busybox]# ctr tasks list

   TASK       PID      STATUS    

   busybox    15301    STOPPED

5. 删除容器

   [root@containerd busybox]# ctr container delete busybox

   [root@containerd busybox]# ctr container list

   CONTAINER    IMAGE    RUNTIME

到此，关于“containerd怎么编译”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！

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