The CI workflow described in this article is composed of three steps. No matter your distribution of choice, you'll need a 64-bit installation and a kernel at 3. The format is docker build -t. Note: This behavior is inherited from the docker run command. In my previous posts Install Docker and run containers on Windows and Create a Docker container on Windows with a Dockerfile, I showed you how to create a single container. The name allows you to easily locate and assign Docker volumes to containers. Before we fill in a queue worker, let's get the apache server working again. Now, type docker images. All we need in Docker containers is just run the scripts. Let’s say you are running the docker host on a remote server and you want to connect to it from your laptop. Step 4: Open the Hasura console. All these container IDs can be retrieved from the above “docker ps” command. With the above loops, you can tell bash to run a command, sleep for N amount of seconds and then run the command again. You can either force the old behaviour by adding the --user root flag to docker run, or make sure to change your config and data directories to ones accessible by the parity user (uid 1000) within the docker container or before adding the directories as. The --rm option is called the "Clean up" option and removes the Docker container and the filesystem & volumes associated with the container after it has run. apache automation bash bash scripting centos commands database devops Docker file sharing git gitlab http httpd https java jenkins LAMP linux linux command linux. We're now copying in a bash script from docker/start. Note that if you want to run a Picard command, you need to use the new syntax, which follows GATK conventions (-I instead of I= and so on). The docker-relay script configures the Docker pipe to allow access by the docker group. 03/02/2017; 3 minutes to read +3; In this article. There are prebuilt images available on DockerHub that you can use for your own project, and you can publish your own image there. ## run the script CMD. to run the alpine image and execute the UNIX command cat in the contained environment:. It's a Jupyter notebook environment that requires no setup to use and runs entirely in the cloud. This article will help you to pass command line arguments in a shell script. Before we can do anything else, we need to copy our script into the Docker container. The port was primary started to make un*x shell scripts run on windows. Sue is a software engineer at BetterSoft. Just run this terminal command to execute the message putting script:. But these commands and parameters can be overwritten by passing the values over the command line. This instruction is in exec form , which means the command is invoked without a shell - otherwise the PowerShell exe would be wrapped in a cmd call. Der Beitrag Running your R script in Docker erschien zuerst auf STATWORX. To initialize before Rails starts, a custom bootstrap script must be created and the CMD instruction in the Dockerfile must be updated so that CMD, rather than the Rails server, runs the script. When you know the Docker container ID, use this bash command to log into the running Docker container: docker exec -it [CONTAINER_ID] /bin/bash. As of Docker Tools 1. path (string) - Path to a shell script to upload and execute. If you want to clean up your containers then it turns out PowerShell has the same syntax as bash: docker rm -vf $(docker ps -qa) Visual Studio 15 In the meantime install Visual Studio 15 Community edition so that we can create an ASP. Figure 2: The NGINX image has been pulled down. Run SQL Script or SQL File From Command Line On Remote MySQL/MariaDB Database Server. cd c:\docker. Docker Command Line API has a special command to attach to a running container. To remove our flask_app image we can use the docker rmi command, for example: $ docker rmi flask_app:0. Travis CI builds can run and build Docker images, and can also push images to Docker repositories or other remote storage. I did check and I did get the name correctly, by executing this command: docker-compose config --services` The problems seems to be that the files from the repository are not visible in the app container. Docker Client: This is a command line tool used by the user to interact with the Docker daemon. Minikube-ing We finally have some sort of automation for our build pipeline, but it doesn't really give us a way to test our application yet. Save this script into a file called run. This is way you get the [email protected] prompt. docker ps -a. And, since Docker is a primarily Linux-based technology, it’s now very straightforward to deploy ASP. Sometimes it is needed to run some MySQL queries from the Linux command-line interface without accessing the interactive MySQL prompt. docker rm $(docker ps -a -q). Here is what I want my program to do: Launch a text editor for the user to type some Bash code. Run a Docker Container in Ubuntu. This command lists all of our running processes, image, the name they are created from, the command that is run, ports that software are listening on, and the name of the container. You may just consider prompting for endpoint/credentials and the rest of the user input can then be passed in dynamically if you were to go with this option. How to Keep Docker Containers Running Docker containers, when run in detached mode (the most common -d option), are designed to shut down immediately after the initial entrypoint command (program that should be run when container is built from image) is no longer running in the foreground. exe means that we want to enter the container inside a new cmd. By running, what we want to do is to go inside that container and run a few commands there. This shows that that Docker will download the image with the name centos from the Docker Hub and then install it locally in order to run it in an interactive mode. databases name ----- master model msdb tempdb 4 row(s) returned Executed in 1 ms. Note: Again, you’ll be executing the above docker-machine command on your local system. Also, the docker run command. Identify the container ID of your InfluxDB container, and run the following command to have a bash in your container: $ docker exec -it /bin/bash. The script checks if the first argument sent to it is equal to the string postgres, and if so, executes a series of instructions to set up a database. To run a container with an interactive shell, run the following Docker command on the Project Atomic host: # docker run -i -t fedora bash This has created a running Fedora instance in a Docker container and attached a bash shell to the tty. Microsoft is getting ready for the next big update for Windows Server (check out today's complimentary Microsoft blog post) and some of the new features are very exciting for Docker users. The guide also assumes you have a working Docker installation and a basic understanding of how a Node. This script creates a virtual machine with Docker enabled and starts a container running NGINX. In your specific use case, it is a combination of several of the previous answers. This image ru. How to run cron jobs with docker. js is a JavaScript framework that is used for developing server-side applications. Hi @halfer, thank you for your reply. \Enable-NestedVm. Running Linux containers on a Windows host has been available for awhile now. Build agents that monitor and act on your behalf. What is that? The purpose of this video is to show how to run PowerShell natively inside Docker containers on Linux. The second statement you see uses the RUN command to tell the container, once it is running, to call mkdir c:\myapp. Use a shell script as the ENTRYPOINT of a container, and execute the necessary setup steps before passing control to a long-running process. Developing inside a Container. Any command line arguments passed to docker run will be appended to the entrypoint command, and will override all elements specified using CMD. Docker is a powerful platform for building, managing, and running containerized applications. There are dozens of options you can set when using the docker run command, but we've used a bare minimum set to get started. If no other arguments are specified, the Linux kill command will send a SIGTERM (much like docker stop). Bash can execute the vast majority of Bourne shell scripts without modification, with the exception of Bourne shell scripts stumbling into fringe syntax behavior interpreted differently in Bash or attempting to run a system command matching a newer Bash builtin, etc. From the grep command we can see that our changes are not in the file. These arguments decide how the script should be run inside the container. The first command will stop all running Docker containers and then the second command will delete all docker containers from your system. It lets you do anything the docker command does, but from within Python apps – run containers, manage containers, manage Swarms, etc. Entrypoints should use ENTRYPOINT not CMD ## recommend renaming this to make it clear what it's used for ## If it's a long running service, it shouldn't use a shell script CMD [". So that way you mount your preset working directory into the container and then within the container run that script, while continuing along in your original script. 3 The docker daemon receives the instructions. To remove all docker containers from your system use the following commands. Now you can build your docker image. How to run cron jobs with docker. The developer first pushes a commit to GitHub, which in turn uses a webhook to notify Jenkins of the update. The docker logs command fetches a container's logs from STDOUT/STDERR, the standard application log deposit locations for Linux applications. In order to create and run a Docker container, first you need to run a command into a downloaded CentOS image, so a basic command would be to check the distribution version file inside the container using cat command, as shown. Docker engine has a command line tool docker which is used to interact with containers. This runs an arbitrary command specified in the package’s "start" property of its "scripts" object. param1 − This is the parameter entered to the command. To inspect the container instead, specify -i to make it interactive, and override --entrypoint to a shell (such as /bin/bash ). In Linux and other Unix operating systems you can create multiple users and assign them to a group or multiple groups and provide necessary privileges to the new users. Configuring Airsonic is best done using the web-interface. How to run cron jobs with docker. As such, it's familiar to anyone starting or running Docker containers on a daily basis. 2- ran the docker engine 'dockerd' from administrator command prompt. Step 1: Get the docker-run. yml: Then you can add - docker commands to your build as shown in the following examples. Trying to run a docker container through a bash script. String `!23` is replaced with `docker` in command lineWhy is sed coming back with “unterminated `s' command”?How to run source with docker exec?Execute string with variables as commandnohup … & doesn't work as expected in docker scriptnull string as command in while loop: empty/null-commandWhy does command injection not work in this example?Testing an infinite loop in the background. sudo is a powerful command line tool that enables a “permitted user” to run a command as another user (the superuser by default), as defined by a security policy. It's possible to inspect details of the Daemon running: docker info. Then the docker container stop command stops the containers using the container IDs. The first command will stop all running Docker containers and then the second command will delete all docker containers from your system. You can get bash shell access in your docker container with attach command. You may adjust the airsonic. The Docker engine includes tools that automate container image creation. Run the Docker image as a container: $ docker run -it ubuntu /bin/bash [email protected]:/# When you execute docker run IMAGE, the Docker engine takes the IMAGE and creates a container from it by adding a top writable layer and initializing various settings (network ports, container name, ID and resource limits). sh bash script If your Postgres instance is running on localhost, the following changes will be needed to the docker run command to allow the Docker container to access the host's network: Linux. I want to run some script after entrypoint, and before command. Docker's simple and straightforward syntax gives you full control. We have the following SQL file content which is sqlscript. Docker helps you get set up quickly, and doesn’t install anything permanent on the system, which makes uninstalling Netdata easy. Four key steps to configure a remote debugging session for Java Spring Boot microservices running in Docker containers At the IBM Cloud Garage, we help customers accelerate their digital transformation by modernizing applications for the cloud via our industry-leading IBM Cloud Garage Method. A lot of people use Windows. This is useful for testing out quick ideas with code and changing data server-side without touching the website. I have written a simple wrapper for docker build and docker run that allows me to build and run my image without having to use the docker command directly. A Docker container includes a software component along with all of its dependencies - binaries, libraries, configuration files, scripts, virtualenvs, jars, gems, tarballs, etc. Type the following command to verify that your installation working: docker run hello-world Sample. docker run is the command to run a container from an image. #docker ps -s. The flow executed by docker-test command: docker-test will search for ONBUILD instructions in application Dockerfile and will … generate a temporary Dockerfile. All the details about the started process, text of the script etc. Creating, starting, and connecting to a container. To run as an ordinary user (without having to attach 'sudo' to every docker command), add your WSL user to the docker group. The idea is to connect to a remote Linux server over SSH, let the script do the required operations and return back to local, without need not to upload this script to a. To create a new Artisan command using a Docker container (rather than your local version of PHP), navigate to the new folder we created and run:. Inspect volumes by running, for example docker volume inspect data. sh"] Then I ran: docker build -t pip. Create users in Linux using the command line. 10 or newer. The call command has no effect outside of a script or batch file. CMD specifies what command to run within the container. Note that if you want to run a Picard command, you need to use the new syntax, which follows GATK conventions (-I instead of I= and so on). In the following example application definition, we will focus on a simple Docker app: a Python-based web server using the image python:3. To log into a running Docker container, you'll need to find the container's ID with the docker ps bash command. How To Run Custom Script Inside Docker. 1) Install Application on Docker container. This lists the images that all your. This allows time for the machine to start up and be ready to run scripts. Issuing a $? from the command-line after a shell script exits gives results consistent with the table above only from the Bash or sh prompt. Now, with the following command, we will prepare our Docker Image for its journey to the outside world (the accountname part of the command is your account name on the Docker Hube profile page):. Time to start running the container: $ docker container run alpine echo "Hello World" When you run the above command for the first time, you should see an output in your Terminal window similar to this:. This is a bit strange as on the development environment the files are accessible in the app container, but not on CircleCI. Docker –info – this will give all the information about the installed docker. How to run cron jobs with docker. To stop a docker application that is running in the foreground, you just have to press Ctrl-C as show above. To use Docker tasks with Bamboo Windows, run Docker Machine. It's a bit different when running interactively; in that case bash is the primary process, and the process keeps running because an interactive shell is opened; your proposal would mean that docker-compose runs a command, detects when it completes, then triggers the next command. Docker also provides portable Linux deployment: Docker containers can be run on any Linux system with kernel is 3. After the Docker image has been created, one can create a Docker container using the following command: docker run -it -d -p 80:80 -m 3GB --cpus=2 --name tss3gb tss. The running node can also be attached to with docker exec, the container id (seen in the output of docker run -d or use docker ps to find this) and command remote_console. Run Script to Enable CDA. If you have some experience with Docker and you wish or need to access the Jenkins/Blue Ocean Docker container through a terminal/command prompt using the docker container exec command, you can add an option like --name jenkins-tutorials (with the docker container run above), which would give the Jenkins/Blue Ocean Docker container the name. Cd: The cd command is the shorthand version of the chdir command. In the case of Docker, the main reason for using the socket is that any user belonging to the docker group can connect to the socket while the Docker daemon itself can run as root. As soon as we run bash, the shell opens in /opt/flask-app as specified in our Dockerfile. And shell scripts can only do so much. docker search microsoft | grep sql Run the command below – on Windows, with the Select-String PowerShell cmdlet - to search the Docker Hub for SQL Server-specific container images from Microsoft. How to open a bash shell inside a running container and get an interactive command prompt. Today, Microsoft announced the general availability of Windows Server 2016, and with it, Docker engine running containers natively on Windows. Run your Oracle database inside a Docker container. Just add your own scripts and edit the crontab. yml is unnecessary when you can either do it in the Dockerfile or in the container's startup script, both of which will also make your container more useful when not being run with Compose. Docker no doubt is the Best Container Management Platform for your Enterprise and/or Personal project need. In 12 minutes I'll give you comprehensive introduction to docker, covering: 1. All tested scripts worked fine with this old version, so the primary goal of the project has been reached even with this old bash version. Using Docker Build. Boccone, A. With the significant changes to the Windows Subsystem for Linux 2,. Introduction to Dockerfiles. I’ve got a serviceable configuration at this point. Distributing Command Line Tools with Docker Let's take this a step further and make a wrapper script: #!/bin/bash # gnu-date - a wrapper script for invoking `date(1)` from within a Docker image docker run --rm -ti ubuntu:12. Dockerfiles use all uppercase letters for the entrypoint instruction. Docker Compose is a tool for defining and running multi-container Docker applications. Images, the packages Docker uses for applications, are truly cross-platform. Furthermore, Ubuntu is not designed to be run inside Docker. $ docker run hello-world Installing docker-compose. com/roelvandepaar With thanks. Gracefully Stopping Docker Containers Brian DeHamer May 14, 2015 Share + This trivial bash script simply goes into an infinite loop, but will exit with a 0 status if it receives a SIGTERM. To create a new Artisan command using a Docker container (rather than your local version of PHP), navigate to the new folder we created and run:. But your docker container must be started with /bin/bash. The goal of pm2-runtime is to wrap your applications into a proper Node. I am trying to write a simple dockerfile that wraps around a bash script. For more complex apps, and to adhere to the recommended approach of more explicitly declaring of. $ sudo docker ps For more information, see the docker-run man page. Mar 09, 2016 · Using Docker-Compose, how to execute multiple commands. The release process type is used to specify the command to run during your app’s release phase. Luckily, this is easy. The Core Project is a highly modular based system with community build extensions. So everything is as expected. Bash command in docker. $ man docker-run That's all! In this article, we have expalined how to name and rename Docker containers. This post describes problems I discovered when installing Docker on Windows, how I found advice for fixing those problems, and what I did that successfully resolved them. In this tutorial, you'll learn how you can use Docker to package and distribute your applications. The --name argument specifies a name for the running container instance. docker build is command to build the docker file available in directory, -t is to tag the name "helloworldapp" to the container. Images, the packages Docker uses for applications, are truly cross-platform. i push it to my local registry. Sue is a software engineer at BetterSoft. The output shows us any currently running containers, and gives us the id, name, and command the container is running. Running Java Application with Arguments. We can actually use Docker to do this. Using Docker in Builds. The contents of the container can vary, but the Docker images (containers) for BaseSpace apps can only be run in Linux environments. Both these methods have their pros. The point is that putting commands to docker exec in docker-compose. If we run the command docker images, we now see the image listed (Figure 2). docker run -d -it -p 80:8080 --name=kz kangzeroo npm run ec2 -- --host=0. If you supply a command and args, the default Entrypoint and the default Cmd defined in the Docker image are ignored. The commands such as docker run and docker commit are complementary to each other. Before we can do anything else, we need to copy our script into the Docker container. I want the container to automatically exit after it is started. Restart Docker. You can even filter image can be removed based on condition by using –filter flag. After docker for windows has been. Prerequisites. To remove all of them, we need a bit of Shell scripting (not too complicated though). Restart Docker. The alias command allows the user to launch any command or group of commands (including options and filenames) by entering a single word. Stop All Containers. When you run docker for the first time, if you do not have Hyper-V enabled it will ask you to turn it on. NOTE: You should be knowledgeable with native Linux or Windows/PowerShell commands, so you can leverage them while working with the different Docker commands. Run the new image by entering: docker run python-barcode You should see what looks like a large ASCII QR code. Other two arguments are just to print the values. Docker Management *Experimental in Docker Enterprise 3. In this blog, I will cover what a Linux base image is and how to create new base images. But when I use bash (docker exec -it [id] bash) to get into the running container, there's no /output. test from original. RUN builds your application with make. Docker containers are quite different from VMs in a number of ways that need to be understood before we can use them to develop Drupal sites. Docker is a technology that allows you to build, run, test, and deploy distributed applications that are based on Linux containers. Retrieving and running Neo4j within a Docker container is very simple using one of the provided images. Installers with a command-line interface should be. Using Docker images GitLab CI in conjunction with GitLab Runner can use Docker Engine to test and build any application. sh" ), this way: `exec "/bin/bash"' Now you don't have to pass cli args. As a reminder, the docker exec is used in order to run a command in a running container. exec Run a command in a running container export Export a container's filesystem as a tar archive & we will get a list of options that we can use with the docker-sub command. ## run the script CMD. The Dockerfile is used by the Docker CLI build command. Docker Options¶. Make sure bash completion is installed. Following is a sample Dockerfile to create a Python webserver Docker container image. Use RUN instructions to build your image by adding layers on top of the initial image. Install Netdata with Docker¶. We should now see that we are connected to our database, and mssql is waiting for a command. Execute this command to build. When I hit F5 to run the debugger, the image gets created and the container will start successfully. at the end of your “/docker-entrypoint. If you have the time, you should take a few minutes to really understand the different kinds of variables when working with Docker, what they are good for and how you. In the decompressed folder, you will find shell script enable-native-cda. With this beta release, Spark users can use Docker images from Docker Hub and Amazon Elastic Container Registry (Amazon ECR) to define environment and library dependencies. We will use the docker run command to run a container i. Be able to explain what a container is and how it differs from a VM. Premier Developer Consultant Randy Patterson explores how to mix Windows and Linux containers with Docker Compose. js script using the Node Docker container, we need to execute the following statement. It's a bit different when running interactively; in that case bash is the primary process, and the process keeps running because an interactive shell is opened; your proposal would mean that docker-compose runs a command, detects when it completes, then triggers the next command. This runs an arbitrary command specified in the package’s "start" property of its "scripts" object. Now that you know the basics of aliases, let's create some for the most common Docker commands. Hi @halfer, thank you for your reply. sh and it appends the nohup file with the following messages:. Now we will run following two SQL Commands to install our sample databases. Also the container is removed after exiting. Open a new command prompt window to be sure that you have access to the environment variables set by the start. Run the Docker image as a container: $ docker run -it ubuntu /bin/bash [email protected]:/# When you execute docker run IMAGE, the Docker engine takes the IMAGE and creates a container from it by adding a top writable layer and initializing various settings (network ports, container name, ID and resource limits). Add a new artisan command like schedule:loop that does what #1 above does but in php. Windows images are larger than Linux images, maybe there is a size limitation in your proxy server when pulling images. I did check and I did get the name correctly, by executing this command: docker-compose config --services` The problems seems to be that the files from the repository are not visible in the app container. With the use of ENTRYPOINT it is possible to create special Docker image that would run the build script in a custom environment, or in secure mode. Docker allows you to quickly build, test, and deploy applications as portable, self-sufficient containers that can run virtually anywhere. Quick Start These docs are for Singularity Version 2. You can see a. To run them I enter sudo python Scale1. Use the comment form below to ask any questions or to add your thoughts to this guide. The above command outputs the version of Docker installed on your PC: Docker version 17. Selenium/hub – which acts as a Selenium hub. Microsoft publishes a ASP. When building Podman, the goal was to make sure that Docker users could easily adapt. However: After I run /app/startupscript. You can edit it anytime but if you want to change it on the fly then you need to specify it at the end of the run command. exe console. It’s an essential part of using Heroku. docker run -e MYSQL_ROOT_PASSWORD=root+1 –d test-intellipaat. It allows users to launch, execute, communicate, and close containers with a single coordinated command. sh into /usr/local/bin/start and making it executable. Run the following docker run command for the Docker image helloworld:v1. And it's always bugged me that I couldn't get Docker working from Bash on Windows - until now. rb worker: command: - python myworker. We can do this by adding the command and arguments we wish to execute at the end of the docker run command. Before you install the software, check the kernel version and the OS architecture. While every platform has its own sandboxing mechanisms, running with Docker lets you specify runtime context and enforce a sandbox in a cross-platform way, which is useful when you expect anybody else to run the same command as you. Docker is an operating-system level virtualization technology that allows you to isolate applications in so-called containers without the overhead of conventional virtual machines. exe qc docker get the current command line for the Docker service. Step 2 − You will see that the Docker pull command for node in the details of the repository in Docker Hub. But for this I have to type exit to come out of the container which I dont want. It is generally recommended that you separate areas of concern by using one service per container. It’s dynamic because the inventory is generated at run-time rather than being read from a static file. The contents of the container can vary, but the Docker images (containers) for BaseSpace apps can only be run in Linux environments. In Linux and other Unix operating systems you can create multiple users and assign them to a group or multiple groups and provide necessary privileges to the new users. You can split your command into separate build and push steps and pass the suitable arguments. The ps command gives a snapshot of the current processes. CMD = Run any command when Docker image is started. 8 Deadly Commands You Should Never Run on Linux Chris Hoffman @chrisbhoffman Updated June 14, 2019, 2:57pm EDT Linux’s terminal commands are powerful, and Linux won’t ask you for confirmation if you run a command that will break your system. Then the docker container stop command stops the containers using the container IDs. registry* Manage Docker registries secret Manage Docker secrets service Manage services stack Manage Docker stacks swarm Manage swarm system Manage Docker template* Quickly scaffold services (Docker Enterprise) trust Manage trust on Docker images volume Manage volumes All commands below are called as options to the base docker command. Docker on Windows is now commonplace, and it comes with additional features you may not be familiar with. See Command-line shell#Configuration files. You can use the system-docker command to control the System Docker daemon. Encapsulation and portable deployment are valuable to both the developers creating and testing applications and the operations staff who run them in data centers. Invoke the docker ps -s command. It's better to turn on verbose log of the proxy sever. Dockerfile: RUN vs CMD vs ENTRYPOINT. The docker run command takes images to containers while the docker commit command takes containers back to new images. cmd script in the previous section. Entrypoints should use ENTRYPOINT not CMD ## recommend renaming this to make it clear what it's used for ## If it's a long running service, it shouldn't use a shell script CMD [". So that way you mount your preset working directory into the container and then within the container run that script, while continuing along in your original script. The -it means to run Docker in interactive mode and tty mode, i. I would like to have a line in the Scale2. Note: This behavior is inherited from the docker run command. Your command is run with your args. To list all available images use docker images command. Sign in Sign up Instantly share code, notes, and snippets. Chrome-in-a-box. Test it Out! Open a new WSL shell to ensure your group membership is reset. After running the script, you can access the NGINX web server through the FQDN of the Azure virtual machine. This script takes a PX4 build command as an argument (e. In the example above, CMD will have the Docker container run the my_ script. Note: This behavior is inherited from the docker run command. Docker is a technology that allows you to build, run, test, and deploy distributed applications that are based on Linux containers. These containers allow Cognos Analytics users to create and edit Jupyter Notebook. The Docker engine includes tools that automate container image creation. Docker containers only run as long as the command is active, so the container will stop when the test finishes running. sh inside the container manually then, the /output. We can actually use Docker to do this. The inventory script generates dynamic inventory by making API requests to one or more Docker APIs. If you have some experience with Docker and you wish or need to access the Jenkins/Blue Ocean Docker container through a terminal/command prompt using the docker container exec command, you can add an option like --name jenkins-tutorials (with the docker container run above), which would give the Jenkins/Blue Ocean Docker container the name. Distributing Command Line Tools with Docker Let's take this a step further and make a wrapper script: #!/bin/bash # gnu-date - a wrapper script for invoking `date(1)` from within a Docker image docker run --rm -ti ubuntu:12. yml use the -f option: docker-compose -f docker-prod. I don't understand the argument of "oh you could do this with a bash script". The Docker command is specific and tells the Docker program on the Operating System that something needs to be done. Howto use docker-compose to Start, Stop, Remove Docker Containers by Ramesh Natarajan on April 4, 2016 If you are new to docker, and if you have taken over a system that already has docker application running, you should at least know how to maintain it. Docker in Docker.