Docker run command General form A docker run command takes the following form: Nov 21, 2022 · Answer: Make use of the --rm option along with your docker run command. It is used with options, docker images, commands, and arguments. Jan 2, 2025 · Once the service is up, we can use docker-compose exec to run the script: $ docker-compose exec -d web /startup. RUN命令是创建Docker镜像（image）的步骤，RUN命令对Docker容器（ container）造成的改变是会被反映到创建的Docker镜像上的。一个Dockerfile中可以有许多个RUN命令。 CMD. docker run. Both of these can be overridden when you create a container from an image. e. I've created a little helper command for building and running, in a single command. This page details how to use the docker run command to run containers. The platform property is a hint that changes how the docker-run task determines Docker run defaults. , docker run <image> -d will pass the -d argument to the entry point. Mar 29, 2022 · If you look at the command, there are a few flags after the command “ docker run” to get the container running. When you execute docker run, the container process that runs is isolated in that it has its own file system, its own networking, and its own isolated process tree separate from the host. Let’s break down what each part of the command does. Using the –user Option in docker run Command Jan 18, 2021 · docker run [OPTIONS] IMAGE [COMMAND] [ARG] 备注：其实跟 docker create 一样的语法格式，只不过可以运行容器甚至进入容器内部 COMMAND ：需要在容器内执行的命令. You can see that the options come before the image name. Mar 10, 2023 · The docker run command inside the container is one of the most important commands in the Docker CLI and is used to run Docker containers. We also give our container a name using the --name flag. . For example, if you had stopped a database with the command docker stop CONTAINER_ID, you can relaunch the same container with the command docker start CONTAINER_ID, and the data and settings will be the same. Below is the basic syntax of the command: docker run [options] [image] [commands] Once the user executes docker run, Docker creates a container using the specified image template and automatically The docker exec command runs a new command in a running container. We will also address a few FAQs on Docker run command. The examples provided here are just a starting point; the command can be customized further based on specific needs and use cases. CMD in the Dockerfile, for example, will be overridden by anything in a docker run command after the image name. docker run -p <host_port>:<container_port> <image_name> Run a container in the background docker run -d <image_name> Start or stop an existing container: Docker run 命令 Docker 命令大全 docker run 命令用于创建并启动一个新的容器。 语法 docker run [OPTIONS] IMAGE [COMMAND] [ARG] 常用参数说明： -d: 后台运行容器并返回容器 ID。 Here’s the list of the basic Docker commands that works on both Docker Desktop as well as Docker Engine: Container Management CLIs. While configuring your run command, you can view the equivalent docker compose up command in the Run command section on the configuration page. Sep 1, 2024 · 1. Values specified by this object are applied directly to Docker run CLI invocation. command: > bash -c "python manage. This command will run a bash shell in an Ubuntu container. We can also use the ; operator with the -c option of sh to run multiple commands. That means every time I was running docker run <IMAGE_NAME> command, new image was getting created; Solution: To work on the same container you created in the first place run follow these steps. This executes both the whoami and date commands in a single run command. CMD命令是当Docker镜像被启动后Docker容器将会默认执行的命令。一个Dockerfile仅仅最后一个CMD起作用。 Aug 3, 2014 · 2) Another way would be to define an ENTRYPOINT in a similar way. CMD goes as arguments to ENTRYPOINT. Want to convert from Docker compose file formats ? Dec 6, 2023 · The ‘docker run bash’ command is a combination of several elements, each with its own purpose. 容器 8080 端口映射到主机的 1111 端口; 以交互模式启动一个容器，在容器内执行 bash 命令-it. com Jun 6, 2020 · Learn how to use the docker run command to create and start containers from images. The `docker run` Command. The filesystem support of your Docker 命令大全 容器生命周期管理 run - 创建并启动一个新的容器。 start/stop/restart - 这些命令主要用于启动、停止和重启容器。 Jan 1, 2024 · docker-compose run myservice mycommand. I was just going through this tutorial on Youtube, trying to understand the use of the -v option at the run command. Jan 14, 2016 · The command is: docker run IMAGE_ID and not docker run CONTAINER_ID; Start: Launch a container previously stopped. This command will start a new container based on the myservice service definition and execute mycommand within it. 12. sh . It’s generally a good idea to clean up resources when no longer needed. The command you specify with docker exec only runs while the container's primary process (PID 1) is running, and it isn't restarted if the container is restarted. Make sure to replace image_name with what you would like to name your image. Jun 17, 2024 · Step 4: To see the ports exposed by the Jenkins container type docker inspect command. See examples of different use cases, such as running commands in background, interactive mode, with environment variables, bind mounts, published ports, and more. Advantages: Sep 29, 2017 · Second, when you change simple_script. 3. Example. log". Create a Docker Volume. Conclusion 我們就來看看你的第一個Docker應用程式，官方使用Hello world!，我們也不例外： docker run busybox echo "hello world" $ docker run busybox echo "hello world" Unable to find image 'busybox:latest' locally 511136ea3c5a: Pull complete df7546f9f060: Pull complete ea13149945cb: Pull complete 4986bf8c1536: Pull complete busybox Jul 8, 2024 · Docker run. The following is the syntax for the docker run command: docker run [OPTIONS] IMAGE [COMMAND] [ARG] The only argument needed for the docker run command is the name of the image from which the container should be Dec 21, 2024 · Docker command cheat sheet for sysadmin and developers… Docker is a containerization system which packages and runs the application with its dependencies inside a container. There are many options you can add to the docker run command, you will learn more about the options in the next sections. Syntax: docker run [OPTIONS] IMAGE [COMMAND] [ARG] Example: docker run -d -p 80:80 nginx. Oct 27, 2019 · You use Docker commands to build a Docker image, run a Docker container, send a Docker image to a remote Docker registry etc. The docker exec command allows you to run commands inside a Docker container. Docker Run Command. When a container is started, Docker runs the entrypoint command, and passes the command (CMD) to it as an argument list. I built a Docker image that is running fine, but I hav You can't run the mount command inside the container directly, because the container is unable to access the /dev/loop5 device. We will use this Image ID to tag our docker-whale image. They allow containers to start in different modes suited to your particular use case. options 说明. The docker run command allows for the creation and launch of a new container based on a given Docker image. sh. The -d flag will run the container in detached mode. Specify the following information for the run command: Tip. When you run docker like this: docker run -i -t ubuntu bash the entrypoint is the default /bin/sh -c, the image is ubuntu and the command is bash. Oct 14, 2021 · Learn how to use docker run command and other common docker commands to create, start, stop, and manage containers. On the Run menu, set up the configuration for the container, such as the container name, the isolation type, which ports to publish, and memory and CPU allocation. list -it --rm -p 8080:80 imagename The reason this is the case is because the docker run command has the below signature. 0, you can specify that a group other than docker should own the Unix socket with the -G option. The docker daemon must always run as the root user, but if you run the docker client as a user in the docker group then you don't need to add sudo to all the client commands. May 16, 2018 · 运行一个带命令在后台不断执行的容器，不直接展示容器内部信息：docker run -d ubuntu:latest ping www. Various options in the Dockerfile give defaults that can be overridden at docker run time. docker ps to get container of your container; docker container start <CONTAINER_ID> to start Aug 12, 2024 · The docker run command is versatile and essential for managing Docker containers. The Docker Desktop CLI lets you perform key operations such as starting, stopping, restarting, and updating Docker Desktop directly from the command line. A simple explanation for them is:-d runs the application in the background-p 80:80 provides the mapping from the host port to the container port. and run it. if the docker image is not present, then the docker run pulls that. Docker is a powerful tool used for developing, packaging, and deploying applications We will cover two methods: using the `docker run` command with the `-d` flag, and using the `docker-compose` CLI tool. For example: docker-compose run dperson/samba arg1 arg2 arg3 If you need to connect to other docker containers, use can use --service-ports option: docker-compose run --service-ports dperson/samba arg1 arg2 arg3 Mar 11, 2024 · Docker launches the containers in seconds, and the heart of running containerized applications lies in the powerful command known as 'docker run'. 5 on Windows 10 via Hyper-V and want to use container executables as commands in the current path. Single character command line options can be combined, so rather than typing docker run -i -t --name test busybox sh, you can write docker run -it --name test busybox sh. Apr 18, 2020 · Attaching Docker Volumes to containers via the docker run, or docker create commands will allow some of the data in your container to persist across image rebuilds. 4. 注意：如果这里加了 参数，则不会进入容器的 CLI 界面；如果不加 bash 命令，则会执行 tomcat 容器本身自动会执行的命令（ catalina. For detached docker exec commands make sure to redirect stdout and stderr streams to log files or Docker logging driver. The docker run command creates and starts a new container, also pulling the image if it is needed to start the container. For example, to run the command npm install after starting a container named my-app, you would use the following command: docker-compose run my-app npm install This will ensure that the npm install Feb 4, 2014 · Docker has a default entrypoint which is /bin/sh -c but does not have a default command. The following steps create an ext4 filesystem and mounts it into a container. 9. It is Apr 25, 2024 · docker run -d--name container-name alpine watch "date >> /var/log/date. 实际栗子 栗子一 Now, the bin/bash/ command can accept input and docker run -it IMAGE_ID command attaches STDIN to the container. As you can see, options start with either a dash -like -d or double dash --like --rm. Commented Sep 12, 2016 at 5:13. Looking for the reverse (Docker compose to docker run command(s)) ? Try Decomposerize. Download the Dockerfile to a directory on your machine, and from that same directory, run the following docker build command. Example: Mounting a block device in a container. docker-compose exec: The docker-compose exec command is similar to docker-compose run, but it operates on running containers instead of creating new ones. Jan 21, 2018 · docker run -it ubuntu:xenial /bin/bash starts the container in the interactive mode (hence -it flag) that allows you to interact with /bin/bash of the container. example of a docker run command is. In Docker, the command "docker run" is used to create and run a new container based on a specified Docker image. The `docker run` command is used to create and start a Docker Mar 1, 2021 · RUN. The following docker commands will help you get started with working with docker volumes. As we can see from the above output, both commands run one by one. In other words, the container can then do almost everything that the host can do. With this functionality, one may configure network settings, volumes, or environment variables for the container. This allows arguments to be passed to the entry point, i. Feb 20, 2024 · 本文将深入探讨 docker run 命令的使用方法，旨在帮助初学者快速入门并掌握该命令的各种用法。 Docker Run 简介. Docker를 사용하면서 가장 자주 접하는 커맨드는 단연 컨테이너를 실행하기 위해서 쓰이는 docker run일 것입니다. You can learn more about port mapping here. You can use the Docker run command to create and execute containers based on Docker images. The Docker Desktop CLI provides: Simplified automation for local development: Execute Docker Desktop operations more efficiently in scripts and tests. An ENTRYPOINT will not be overridden by a command appended to the docker run command (but can be overridden with a --entrypoint option). The -p flag publishes port 5000 on your local machine’s network. Jan 6, 2020 · I ask because 'docker run' seems to expect a single command and individual unquoted arguments rather than a quoted string. run: This is a subcommand of docker. sh and run docker build now, the apt commands will be cached, and subsequent builds will only need to add the simple_script. Option types. Share. Jan 1, 2018 · The Docker run command documentation refers to this flag: Full container capabilities (--privileged) The --privileged flag gives all capabilities to the container, and it also lifts all the limitations enforced by the device cgroup controller. See options for foreground, detached, named, published, and mounted containers. To create a docker volume run the following command. docker container run --rm hello Output Hello, world! The --rm option tells Docker to remove the container once the process running in it terminates. As can be seen, we’ve effectively overridden the CMD instruction once again. Dec 19, 2024 · Learn how to use the 'docker run' command to create and run containers from docker images. Containers are lightweight, isolated environments that can run applications with their dependencies, making it easier to package and deploy software across different environments. 0:80->8080/tcp cool_buck $ docker stop dd1e156a0d6a # 2回目のdocker run $ docker run -p 80:8080 -d ImageA $ docker ps CONTAINER ID IMAGE COMMAND Mar 26, 2025 · $ docker run centos:latest sh -c "whoami && date" root Sun Dec 18 10:10:12 UTC 2022. ) Learn how to run a command after starting a Docker container using the docker-compose run command. Here are the steps to do it: Step 1: List all the docker images, that are available locally. Jul 18, 2024 · The docker run command (an alias of docker container run) allows a user to create and start a container using only an image as a command argument. docker run -d --name <container-name>-d: run the container in the background and print the new container ID Sep 27, 2024 · $ docker run -d nginx $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ba8168618de3 nginx "/docker-entrypoint. Image name feels like an option but it is a parameter to the run command. Mar 26, 2025 · Let’s again run the Docker container with the docker-compose up command: $ docker-compose up Creating dockercompose_server_1 done Attaching to dockercompose_server_1 server_1 | baeldung server_1 | docker dockercompose_server_1 exited with code 0. The above output shows that a default user with baeldung is created inside the container. Apr 27, 2017 · I have dockerfile FROM centos:7 ENV foo=42 then I build it docker build -t my_docker . go" 39 seconds ago Up 38 seconds 0. The above command contains all the parts that make up the docker run command. This Docker command cheatsheet is a summary of commonly used Docker commands and their options, as well as other useful information related to docker-build-and-run. Aug 31, 2020 · If I execute the command "start my_new container", the container starts and exits immediately. The docker run command must specify an image reference to create the container from. sh run ），也会进不了 CLI 界面，因为会打印一堆运行日志 Sep 29, 2020 · CMD executes the commands when your Docker Image is deployed. RUN executes the command when you are building The most important configuration settings for the docker-run task are dockerRun and platform: The dockerRun object specifies parameters for the Docker run command. Download and install Docker Desktop. 1 Run ‘docker images’ command to list all images. Jan 4, 2025 · This assures developers that their application can be run on any other machine. It creates a new container from the image specified and starts that container. It allows you to create and start a container with a single command. As of 0. The docker run command is a combination of the docker create and docker start commands. See examples of setting the container name, password, volume, web server, environment variable, and more. Using either docker run, psql, or Docker Compose, you can successfully start up Postgres using the Official Image! These are reliable ways to work with “default” Postgres. docker run--> Command to build a container out of an image. com Now that you have an image, you can launch a container to run your program. 7. Mind Privilege Levels Say goodbye to sprawling docker commands and say hello to $ docker-compose up:). Properly Redirect Output Streams. docker run -it -d my_docker Is it possible to pass arguments from command line and use it wit Jan 4, 2025 · In this example, we will see a NodeJS docker image getting contanerized by the docker run command. With Docker Debug, you can debug your images while they contain the bare minimum to run your application. py migrate && python manage Oct 27, 2023 · In this tutorial, you will understand Docker run command. 3) A third option would be to run the Script in a RUN command, which would bake in the script execution into the docker image. See the syntax, options, and examples for each command in this tutorial. – You can use docker-compose run instead of docker-compose up and tack the arguments on the end. docker container prune: Remove all stopped containers docker container rename: Rename a container docker container restart: Restart one or more containers docker container rm: Remove one or more containers docker container run: Create and run a new container from an image docker container start: Start one or more stopped containers docker In the example you give, you shouldn't need either the -v or -w option. When to use the Docker run command You can create and run a container with the following command: docker run -it -d --name container_name image_name bash. Mar 26, 2025 · In the previous example, we can run the service echoer and enter the COMMAND option to the docker-compose run command: $ sudo docker-compose run echoer "Hello World, CMD Overriden from docker-compose run" Hello World, CMD Overriden from docker-compose run. sudo docker run -p 8080:8080 50000:500000 jenkins Sep 2, 2015 · when I run docker ps -a I could see two containers. 0. Create and run a container from an image, with a custom name: docker run --name <container_name> <image_name> Run a container with and publish a container’s port(s) to the host. docker: This is the base command for the Docker CLI (Command Line Interface). Otherwise critical output might be lost. Nov 10, 2020 · 栗子七. This is a popular Linux container image that uses Alpine Linux, a lightweight, minimal Linux distribution. Jun 24, 2023 · What is the Docker run command? The docker run command starts a new container, executes a command inside it, and pulls an image if needed. Command: Docker run lets you add a command that will run inside the containers. sh -d. py makemigrations && python manage. com; 运行一个在后台不断执行的容器，同时带有命令，程序被终止后还能重启继续跑，还能用控制台管理，docker run -d --restart=always ubuntu:latest ping www. Dec 17, 2024 · Learn how to use docker run command to create and start a new container from a specified image with various options. 备注：其实还有好多 options，但是目前还没用到，要用的时候再写吧. By default, the httpd server listens on port 80. Dec 27, 2022 · To run multiple commands in the docker-compose file by using bash -c. In a terminal, run the following command to start a new container: Command line arguments to docker run <image> will be appended after all elements in an exec form ENTRYPOINT, and will override all elements specified using CMD. You can also use this command to run your project from the command line. It is the same as if you execute "docker run --name mybox1 busybox" and then "docker start mybox1". Mar 18, 2016 · Download Dockerfile and Build a Docker Image. For more information on available Docker run parameters, review the Oct 5, 2022 · To launch your Postgres database and supporting services, enter the docker compose -f [FILE NAME] up command. In this hands-on guide, you'll learn how to publish container ports using both the CLI and Docker Compose for deploying a web application. The following command line will give you a bash shell inside your mysql container: $ docker exec -it some-mysql bash Feb 15, 2023 · Additionally, the docker run command can be used to manage the lifecycle of containers. Here’s the list of the Docker commands that manages Docker images and containers flawlessly: Inspecting The Container. The above command launches an httpd container, and maps the host’s port 81 to port 80 inside that container. $ docker run <image From the command drop-down menu, select New run command. /env. Jun 21, 2020 · # 1回目のdocker run $ docker run -p 80:8080 -d ImageA $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES dd1e156a0d6a ImageA "go run main. It is used when we want to create a container for the first time. Docker execute ENTRYPOINT command when you start the container. This command is used to run a container from an image. The command runs in the default working directory of the container. Docker is a powerful tool used for developing, packaging, and deploying applications efficiently. The run command creates a new Docker container from an image. Use the Docker CLI. Relation between Kubernetes and Docker Run Command. You can start, stop, restart, or remove containers using the docker run command with the appropriate options. Here’s the list of the basic Docker commands that helps you inspect the containers Pull an image from a Docker Hub docker pull <image_name> Create and run a container from an image, with a custom name: docker run --name <container_name> <image_name> Run a container with and publish a container’s port(s) to the host. Understanding its various options and flags is crucial for effectively deploying and managing containers. Use volumes to store persistent container data; this mechanism lets you reattach stateful files to the new container by repeating the -v flags passed to the original docker run command: docker run -v config-volume: /usr/ lib/config --name demo Apr 5, 2017 · 4. When you run a Docker container, you are essentially Mar 1, 2021 · To run a version locally, execute the following command: $ docker run -d -p 5000:5000 --name registry registry:2. That's why the docker run command uses the --mount option. In this Docker command tutorial I will describe some of the most commonly used Docker commands. Kubernetes uses the docker run command internally to start containers on worker nodes. Explore the options, parameters, and examples for customizing container behavior, networking, storage, resource management, and security. Earlier, we defined our own ENTRYPOINT as /entrypoint. Again, to confirm the HTTP server creation, we can either check the container logs or use curl on localhost port 8080: $ sudo docker-compose logs -f web web-1 | Starting simple HTTP server So, mounting a read/write host directory is only possible with the -v parameter in the docker run command, as the other answers point out correctly. One reason not to automatically remove a container when the running process terminates is to Aug 4, 2021 · In this Docker Tutorial, you’ll learn all the basic to advanced concepts like Docker installation, Docker container, Docker commands, Docker run, Docker images, Docker compose, Docker engine, Docker networking, etc. docker run 命令用于在 Docker 中运行一个容器。它可以基于指定的 镜像 创建并启动一个新的容器实例。docker run 命令的基本语法如下： Mar 26, 2025 · Let’s run the container and check out the output of the whoami command: $ docker run --rm --name dynamicuser dynamicuser baeldung. The 'docker run' is used to create a running container from using a docker image. We will also discuss some of the advantages and disadvantages of each method, so that you can choose the one that best suits your needs. And then, if you want to enter the container (to run commands inside the container interactively), you can use the docker exec command: docker exec -it container_ID_or_name /bin/bash Comprehensive guide to the Docker run command: Learn container naming, port mapping, volume mounting, environment variables, resource management, networking, restart policies, and custom commands through hands-on exercises. bash_profile to make it available in the Terminal. Description I am using Docker version 1. Dec 29, 2022 · docker run --env-file . Here, we’re going to provide you with an ultimate Docker Cheat Sheet that will help you to learn Docker Commands easily. That means now you will have bash session inside the container, so you can ls, mkdir, or do any bash command inside the container. The image reference is the name and version of the image. The result is that you get an interactive terminal and the container keeps running. This command creates a new Docker container from the official alpine image. Here is an example of a docker run command: docker run -it ubuntu bash. Jan 4, 2025 · Docker Commands Docker Run command. --rm--> Option to remove the container after it exits. Docker Debug is a CLI command that helps you follow best practices by keeping your images small and secure. Third column of above output shows you docker Image ID. The command must be an executable. You can use the image reference to create or run a container based on an image. docker run [OPTIONS] IMAGE [COMMAND] [ARG] Docker Run docker run – Runs a command in a new container. docker inspect Container/image. See full list on phoenixnap. (In the first case you could make it work interactively with "docker run -it --name mybox1 busybox", but in the second case I don't know how to do it. Docker has many commands, and I will not be explaining all of them in this Docker command tutorial. Example 1: # To run apache2 in foreground CMD ["/usr/sbin/apache2", "-D", "FOREGROUND"] Example 2: FROM ubuntu:latest CMD /bin/bash #4: RUN – RUN in Dockerfile Instruction is used to execute any commands on top of current Docker Image. Mar 23, 2021 · Docker execute RUN command when you build the image. Additionally, you can append Docker run commands that are not in the UI, such as -v for persistent volume. Why is the author using the -v option? He uses the command, like so: docker run -v /var/lib/mysql --name=my_datastore -d busybox echo "my datastore" Now I understand the above command to an extent: Nov 11, 2024 · Otherwise use docker run or docker build to spawn containers with the necessary utilities. docker run 커맨드는 상당히 여러 가지 옵션을 통해 다양한 방식으로 컨테이너를 실행할 수 있도록 해줍니다. The host may be local or remote. …" 4 seconds ago Up 3 seconds 80/tcp nice_kirch 여기서는 nice_kirch 라는 이름이 붙었습니다. That means that in your case, this is what Docker will execute in the container when it starts: Nov 11, 2020 · 出现时机：在主机二当中使用docker run 运行刚刚使用docker import 命令导入的镜像。 在主机一当中使用（注意不要使用docker ps ，用这个获取的command会不全）现在有一个主机一（宿主机）和一个主机二(需要迁移容器进去，目标机)然后使用linux系统的history将之前运行报错的指令调出来。 6 days ago · In this Docker Tutorial, you’ll learn all the basic to advanced concepts like Docker installation, Docker container, Docker commands, Docker run, Docker images, Docker compose, Docker engine, Docker networking, etc. In this step, you will run a container and publish its port using the Docker CLI. Example: $ docker run --rm alpine:edge echo "Hello There" Hello There. Learn how to use the docker run command to start a new container from a docker image with various options and settings. Check out our documentation to learn more about these Description. Oct 29, 2023 · So, the docker run command is a combination of the docker create and docker start commands. This speeds development, which Dec 27, 2023 · Some common examples of using docker run with options: docker run -d nginx # Detached mode docker run -p 80:80 nginx # Map port 80 docker run --rm nginx # Remove automatically. This is useful for tasks such as running database migrations or initializing application data. Image references. Aug 2, 2024 · The docker run command gives you the options of adding a custom name for the container you are building or binding a volume. On Linux or Mac, you can add this to your ~/. docker start – Starts one or more stopped containers; docker stop <container_id> – Stops container; Jan 11, 2022 · As containers are meant to be stateless and ephemeral, you should be able to replace them at any time. docker. docker run -p <host_port>:<container_port> <image_name> Run a container in the background docker run -d Aug 26, 2020 · Get the name or id of the image you would like to run, with this command: docker images The Docker run command is used in the following way: docker run [OPTIONS] IMAGE [COMMAND] [ARG] Below I have included the dispatch, name, publish, volume and restart options before specifying the image name or id: See the Go specification for details on these variables. 7. – davidA. Step 5: In this step, we run Jenkins and map the port by changing the docker run command by adding the p option which specifies the port mapping. Mar 26, 2025 · $ docker run -d -p 81:80 --name httpd-container httpd. ohaea yejsqfe xqejqqu xpyrf lglag yrhr ecyp lqj xmru zhnkp dplvih pdrp cxvzs qxrid wgvjx