/bin/shecho"Running multiple commands"echo"Hello World!"# 你想要运行的其他命令exec"$@" 1. 2. 3. 4. 5. 修改Dockerfile: COPYstartup.sh .RUNchmod +x startup.shENTRYPOINT["/app/startup.sh"]CMD["/app/myscript.sh"] 1. 2. 3. 4. 5. 6. 在这个例子中,start.sh声明了一些命令并以ex...
ENTRYPOINT 的作用和用法和 CMD 一模一样,但是 ENTRYPOINT 有和 CMD 有 2 处不一样: CMD 的命令会被 Docker run 的命令覆盖而 ENTRYPOINT 不会; ENTRYPOINT 指令的优先级高于 CMD 指令。CMD 和 ENTRYPOINT 都存在时,CMD 的指令变成了 ENTRYPOINT 的参数,两者拼接之后,才是最终执行的命令。并且此 CMD 提供的参...
along with any arguments.CMDshould almost always be used in the form ofCMD ["executable", "param1", "param2"]. Thus, if the image is for a service, such as Apache and Rails, you would run something likeCMD ["apache2","-DFOREGROUND"]. Indeed, this form of the instruction is recom...
PS C:\> docker run -v c:\foo:c:\dest microsoft/nanoserver cmd /s /c type c:\dest\somefile.txt Contents of file PS C:\> docker run -v c:\foo:d: microsoft/nanoserver cmd /s /c type d:\somefile.txt Contents of file
2. 而 ubuntu:14.04 镜像的 json 文件,会由 docker daemon 解析,并提取出其中的容器执行入口 CMD 信息, 以及容器进程的环境变量 ENV 信息,最终初始化容器进程。 3. 当然,容器进程的执行入口来源于镜像提供的 rootfs。 rootfs rootfs 是 docker 容器在启动时内部进程可见的文件系统,即 docker 容器的根...
从配置文件读取环境变量--generic-resource list User defined resources--group list Set one ormoresupplementary usergroupsforthe container--health-cmdstringCommand to run to check health 健康检查命令--health-interval duration Time between running the check (ms|s|m|h) ...
CMD [“executable” ,”Param1”, “param2”]使用exec执行,推荐 CMD command param1 param2,在/bin/sh上执行 CMD [“Param1”, “param2”] 提供给ENTRYPOINT做默认参数。 5、EXPOSE 指定容器的端口映射(容器与物理机),运行容器时加上-p参数指定EXPOSE设置的端口。EXPOSE可以设置多个端口号,相应地运行容器配...
CMD TheCMDinstruction sets the default command to be run when deploying an instance of the container image. For instance, if the container will be hosting an NGINX web server, theCMDmight include instructions to start the web server with a command likenginx.exe. If multipleCMDinstructions are ...
CMD ["npm","start"] This example Dockerfile demonstrates the strategic layering andRUNcache usage in action, showcasing how these practices can significantly optimize your Docker builds. Adopting these practices transformed my Docker experience. No more watching the spinner while Docker rebuilds the ...
A multi-stageDockerfileis provided that consists of three stages: a first stage to build the backend service, a second for the React app, and a final stage where we copy the backend binary and the React assets. Finally, theCMDinstruction starts the backend service, using a socket to listen...