Kubernetes - Registry
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拷贝数据123456$ docker run -d --rm redis450662153d83e6e1b30af57443ccfe68d798d5c7f4f8e50d2d287fdde2c1645c$ docker psCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES450662153d83 redis "docker-entrypoint.s…" 7 seconds ago Up 6 seconds 6379/tcp cranky_wilbur 拷贝宿主机文件到容器 1234567891011$ md5sum a.txtd41d8cd98f00b204e9800998ecf8427e a.txt$ docker cp a.txt 450:/tmp$ docker exec -it 450 sh# ls /tmpa.txt# md5sum /tmp/a.txtd41d8cd98f00b204e98009...
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Registry Registry -> Repository Docker Hub 默认 Registry ImageOfficial Dockerhttps://hub.docker.com/u/library Verified Bitnami / Rancher / Ubuntu Unofficial半官方 开通 Verified publisher，需要付费 民间 个人镜像 Naming user/app:tagtag = version + osslim / fat OS Example Alpine / CentOS alpine3.15 Ubuntu 18.04 bionic Ubuntu 20.04 focal Debian 9 stretch Debian 10 buster Debian 11 bullseye FlowOnline1234567$ docker login -u zhongmingmaoPassword:WARNING! Your pas...
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Image 镜像由多层 Layer 组成，Layer 是一组只读不可修改的文件，Layer 可以在镜像间共享Image = Layer + Union FS 1234567891011121314$ docker inspect nginx:alpine... "RootFS": { "Type": "layers", "Layers": [ "sha256:e5e13b0c77cbb769548077189c3da2f0a764ceca06af49d8d558e759f5c232bd", "sha256:07099189e7ec257e501d9625507b55e0ea32c330e38c90d8533b3fa2a7a97069", "sha256:fcf860bf48b4e20f24f44ba02...
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镜像 只读：依赖的文件系统、依赖库、环境变量、启动参数等 核心解决的问题：应用分发 应用容器化 应用不再直接与 OS 打交道，而是封装成镜像，再交给容器环境去运行 常用命令镜像 命令 作用 docker pull 从远端仓库拉取镜像 docker images 列出当前本地已有的镜像 docker rmi 删除不再使用的镜像 容器12$ docker run -h srv --rm alpine hostnamesrv 1234567891011121314151617181920$ docker run -d nginx:alpine6376e2649ef2d4a6073b977fcc4408f7a3f21b6f32775b42be85711b989dd6ce$ docker run -d --name redis_srv redis2a79d491ecb3108b07df7d369dfe8abc6ac314efc2054951ef7b77e0deba0584$ docker run -it --name ubuntu ubuntu sh# cat /etc/o...
