问题
根据CentOS安装docker指南,启动hello-world时报错,提示信息中提到了OCI runtime
,根本原因是 runc did not terminate successfully
[root@localhost composetest]# sudo docker run hello-worlddocker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: unable to retrieve OCI runtime error (open /run/containerd/io.containerd.runtime.v2.task/moby/4a7cc9e9d0d66c8db7f9cd68ffa2631c54d3e3dab4c408fd2af564b1cd496536/log.json: no such file or directory): runc did not terminate successfully: exit status 127: unknown.ERRO[0000] error waiting for container:
解决
参考【错误解决】docker找不到runc:failed to create shim: OCI runtime create failed: unable to retrieve OCI runtime,这个问题跟runc
有关,查看docker版本的确没有runc信息
[root@localhost composetest]# docker versionClient: Docker Engine - Community Version: 24.0.2 API version: 1.43 Go version: go1.20.4 Git commit: cb74dfc Built: Thu May 25 21:53:10 2023 OS/Arch: linux/amd64 Context: defaultServer: Docker Engine - Community Engine: Version: 24.0.2 API version: 1.43 (minimum version 1.12) Go version: go1.20.4 Git commit: 659604f Built: Thu May 25 21:52:10 2023 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.6.21 GitCommit: 3dce8eb055cbb6872793272b4f20ed16117344f8 //如果正常,这里应该有 runc的信息 docker-init: Version: 0.19.0 GitCommit: de40ad0
查看docker状态,提示没有runc
[root@localhost composetest]# systemctl status docker● docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled) Active: active (running) since Thu 2023-06-29 16:24:21 CST; 5min ago Docs: https://docs.docker.com Main PID: 22144 (dockerd) Tasks: 12 Memory: 38.4M CGroup: /system.slice/docker.service └─22144 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock6月 29 16:24:21 localhost.localdomain dockerd[22144]: time="2023-06-29T16:24:21.863821695+08:00" level=warning //这里提示没有runc versionmsg="failed to retrieve runc version: exit>6月 29 16:24:21 localhost.localdomain dockerd[22144]: time="2023-06-29T16:24:21.879643673+08:00" level=info msg="Docker daemon" commit=659604f graphdrive>6月 29 16:24:21 localhost.localdomain dockerd[22144]: time="2023-06-29T16:24:21.879688811+08:00" level=info msg="Daemon has completed initialization"6月 29 16:24:21 localhost.localdomain dockerd[22144]: time="2023-06-29T16:24:21.903813923+08:00" level=info msg="API listen on /run/docker.sock"6月 29 16:24:21 localhost.localdomain systemd[1]: Started Docker Application Container Engine.6月 29 16:25:17 localhost.localdomain dockerd[22144]: time="2023-06-29T16:25:17.603433056+08:00" level=error msg="stream copy error: reading from a close>6月 29 16:25:17 localhost.localdomain dockerd[22144]: time="2023-06-29T16:25:17.603501074+08:00" level=error msg="stream copy error: reading from a close>6月 29 16:26:31 localhost.localdomain dockerd[22144]: time="2023-06-29T16:26:31.575391981+08:00" level=error msg="stream copy error: reading from a close>6月 29 16:26:31 localhost.localdomain dockerd[22144]: time="2023-06-29T16:26:31.575508418+08:00" level=error msg="stream copy error: reading from a close>6月 29 16:29:33 localhost.localdomain dockerd[22144]: time="2023-06-29T16:29:33.001615925+08:00" //这里提示没有runc versionlevel=warning msg="failed to retrieve runc version: exit>
最终查到可能是libseccomp
版本过低引起的,看一下当前版本
[root@localhost composetest]# rpm -qa | grep libseccomplibseccomp-2.3.3-3.el8.x86_64
升级
yum update libseccomp
升级后再查看docker 版本已经有runc
了。
[root@localhost composetest]# docker versionClient: Docker Engine - Community Version: 24.0.2 API version: 1.43 Go version: go1.20.4 Git commit: cb74dfc Built: Thu May 25 21:53:10 2023 OS/Arch: linux/amd64 Context: defaultServer: Docker Engine - Community Engine: Version: 24.0.2 API version: 1.43 (minimum version 1.12) Go version: go1.20.4 Git commit: 659604f Built: Thu May 25 21:52:10 2023 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.6.21 GitCommit: 3dce8eb055cbb6872793272b4f20ed16117344f8 //有runc版本了 runc: Version: 1.1.7 GitCommit: v1.1.7-0-g860f061 docker-init: Version: 0.19.0 GitCommit: de40ad0
总结
解决过程中遇到了OCI
、runc
等名词,根据Docker,containerd,CRI-O和runc之间的区别得知,OCI
是open container initiative
,是一套关于镜像和容器的规范,它也提供了实现就是runc,runc
是用来创建和运行容器的。