ctr命令

参考：https://www.cnblogs.com/vmsky/p/16294864.html

#查看命名空间
ctr namespaces ls

#查看镜像列表
ctr -n k8s.io image ls 

#给镜像打标签
[root@k8s-m1 ~]# ctr -n k8s.io images ls|grep nginx
docker.io/library/nginx:alpine                   
[root@k8s-m1 ~]# ctr -n k8s.io images tag docker.io/library/nginx:alpine harbor.cicd.ltd/library/nginx:alpine
harbor.cicd.ltd/library/nginx:alpine

# push 上传镜像
[root@k8s-m1 ~]# ctr -n k8s.io images push harbor.cicd.ltd/library/nginx:alpine
# 注意可能会出现 ctr: content digest sha256:xxxxxx  not found，解决办法，下载完整的
![](https://img2022.cnblogs.com/blog/1326813/202205/1326813-20220521125303408-1930568624.png)

[root@k8s-m1 ~]# ctr -n k8s.io image pull --all-platforms docker.io/library/nginx:alpine
[root@k8s-m1 ~]# ctr -n k8s.io images rm harbor.cicd.ltd/library/nginx:alpine
[root@k8s-m1 ~]# ctr -n k8s.io images tag docker.io/library/nginx:alpine harbor.cicd.ltd/library/nginx:alpine

#导入镜像, 
ctr image import stmp.tar 
可以加上-n k8s.io这个namespace
ctr -n k8s.io image import stmp.tar


#ctr工具导出镜像命令
ctr images export stmp.tar

# 拉取镜像
ctr -n k8s.io image pull docker.io/library/nginx:alpine

# 删除镜像
ctr -n k8s.io images rm k8s.gcr.io/pause:3.2


例子
ctr i pull --all-platforms docker.io/library/nginx:alpine
ctr i export --all-platforms nginx.tar.gz docker.io/library/nginx:alpine
ctr i rm docker.io/library/nginx:alpine
ctr i import nginx.tar.gz