Kubernetes - Containerized Application
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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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Kubernetes - Containerization
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...
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Kubernetes - Docker Architecture
Architecture 核心是 Docker daemon Flow123456789101112131415161718192021222324252627$ docker run hello-worldUnable to find image 'hello-world:latest' locallylatest: Pulling from library/hello-world2db29710123e: Pull completeDigest: sha256:faa03e786c97f07ef34423fccceeec2398ec8a5759259f94d99078f264e9d7afStatus: Downloaded newer image for hello-world:latestHello from Docker!This message shows that your installation appears to be working correctly.To generate this message, Docker took the following...
