Run vs cmd in docker

Run vs cmd in docker. Jul 14, 2021 · One way to build an image is by using the build command. docker run -d -p 80:80 docker/getting-started This command contains the following parameters:-d Run the container in detached mode, in the background. Docker ENTRYPOINT vs CMD. Run is the equivalent of doing a docker run + docker commit to generate your image, but with a reproducible process. This page details how to use the docker run command to run containers. When these stages aren't tagged and shipped to other nodes, you can maximize the likelihood of a cache reuse by splitting each command to a separate RUN line. Dec 23, 2018 · So we can use --name in docker run command. Mar 18, 2024 · Next, we’ll build and run: $ sudo docker build -t example2 . The docker run command runs a command in a new container, pulling the image if needed and starting the container. $ sudo docker run -it example2 FIRST COMMAND SECOND COMMAND. Because no ENTRYPOINT is set, the CMD of ls is appended to the default ENTRYPOINT, resulting in /bin/sh -c "ls" being executed—the ls command still runs, but as a shell subprocess. May 18, 2022 · The entrypoint and command are just concatenated to form a single command. run: This is a subcommand of docker. docker run runs a command in a new container. The bottom line. Sep 8, 2017 · The primary difference is that when you COPY the bash script into the image it will be available for inspection in the running container, whereas the RUN command is a little more opaque. ; Administrative privileges. They will be appended to ENTRYPOINT just as before. May 16, 2019 · docker pull pulls an image or a repository from a registry. If it isn't, it will try to pull it from Docker Hub. 6. In a Dockerfile, you can define a series of instructions that describe how to create a Docker image. The ARG instruction defines a variable that users can pass at build-time to the builder with the docker build command using the --build-arg <varname>=<value> flag. Use a process manager like supervisord. Dec 22, 2016 · When you use the RUN command, it will execute the instruction and will create a new layer. It’s certainly not a command a DevOps engineer will want to edit, let alone type out by hand. Difference between ENTRYPOINT and CMD; Docker: cmd VS entrypoint May 30, 2018 · WORKDIR /src/ST. The following example starts an Alpine container running top in detached mode, then attaches to the container; $ docker run -d --name topdemo alpine top -b $ docker attach topdemo Mem: 2395856K used, 5638884K free, 2328K shrd, 61904K buff, 1524264K cached CPU: 0% usr 0% sys 0% nic 99% idle 0% io 0% irq 0% sirq Load average: 0. It is similar to CMD, but the difference lies in how they handle command line parameters. 06 0. Jun 6, 2020 · Since the run command interacts with containers, it is a subcommand of docker container. : $ docker run Aug 25, 2023 · but when container runs with a command, e. ). Jun 21, 2015 · Open up a terminal window and run the command docker run -itd --name busybox busybox /bin/sh. Web RUN dotnet build -c Release -o /app FROM build AS publish RUN dotnet publish -c Release -o /app FROM base AS final WORKDIR /app COPY --from=publish /app . The host may be local or remote. CMD の主な目的は、コンテナ実行時のデフォルト（初期設定）を指定するためですと公式ドキュメントにあるように、CMDはコンテナが作成されるときに実行される。 Jul 2, 2015 · If the curl command has not been installed (and is not present in the base image) the entire RUN command fails. The command does not unpack external packages when copying them to the local filesystem. The docker compose start command is useful only to restart containers that were previously created but were stopped. Jan 5, 2018 · Quick Jump: While you can run commands with both instructions, they are very different. but when container runs as docker run -it <image> John will result in. Dockerfile là một May 2, 2021 · If you used docker create command to create a container, you can start it with this command. Mar 16, 2023 · Lets look at the difference between CMD and ENTRYPOINT by passing ab commands during docker run. Web. with apt) then Docker is unavailable in the Windows host so you can't even run commands from there. May 25, 2021 · CMD is designed to be overridden. Make sure no other copies of the containers are running first. More details about whalesay: click here. 03s sys 0m 0. However, since WSL 2 now runs on a Linux kernel with full system call capacity, Docker can fully run in WSL 2. dll"] Now I want to run it up from the command line. -p 80:80 Map port 80 of the host to port 80 in the container. Executing the command above will give you the following output: As you can see, our custom image, custom-image:v1, is listed. Oct 3, 2022 · I'm trying to run react app via Docker and face the EACCES: permission denied issue. 11. General form. Use RUN instructions to build your image by adding layers on top of initial Use a process manager. The run command acts like docker run -ti in that it opens an interactive terminal to the container and returns an exit status matching the exit status of the process in the container. Use the --volumes flag when running the command to prune anonymous volumes as well: $ docker system prune -a --volumes WARNING! This will remove: - all stopped containers - all networks not used by at least one container - all anonymous volumes not used by at least one container - all images without at least one container associated to them Dec 6, 2023 · The ‘docker run bash’ command is a combination of several elements, each with its own purpose. Hello world but when container runs as docker run -it <image> Manu will result in. We can specify the command to be run by RUN, CMD and ENTRYPOINT in two ways: Shell format and Exec format, which have subtle Jan 14, 2016 · The command is: docker run IMAGE_ID and not docker run CONTAINER_ID; Start: Launch a container previously stopped. Hello world but when container runs as docker run -it <image> John will result in. 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. Jul 15, 2020 · $ docker container run my-alpine Hello from CMD Keep in mind that CMD is still overridable. Running a Docker container. Use RUN instructions to build your image by adding layers on top of initial Mar 8, 2024 · Stage 3. 如果你希望这个docker镜像启动后不是ping localhost, 而是ping其他服务器,, 可以这样执行docker run: The docker exec command runs a new command in a running container. 13 syntax is still supported. The command will pull the image busybox if not already present. Jan 12, 2019 · A Docker container runs exactly one command, and when that command is done, the container exits. May 30, 2024 · In the terminal window or a Bash window, run this command. So Docker runs the same commands inside your container: # Starts the container with two arguments ["echo", "hello"] docker run archlinux echo hello # Starts the container with one argument ["echo hello"] docker run archlinux "echo hello" 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. ENTRYPOINT ["dotnet", "ST. The default CMD will be overridden with +%B, causing the container to display the name of the current month. If multiple declarations are made, the last CMD and ENTRYPOINT will be valid. We effectively executed the two commands sequentially with the exec form of the CMD directive. Under the hood, docker run command is an alias to docker container run. Docker run command is a combination of create and start as it creates a new container and starts it immediately. Hello John Shell form. 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. The ENTRYPOINT instruction configures a container to run as an executable. You will also get the same result if you instead type this command docker run -i -t ubuntu: a bash shell will start in the container because in the ubuntu Dockerfile a default CMD is specified: CMD ["bash"]. In its most basic form, the command requires only one argument, i. docker exec is a debugging command that's not normally part of the "build and run an image" workflow. ; docker run Syntax. Dec 27, 2023 · Each RUN statement creates a new layer in the image that contains filesystem changes and commits them. Shell Format vs Exec Format. Here's what they do. See also: Difference between RUN and CMD in a Dockerfile 5 days ago · The default registry is Docker Hub. CMD instruction allows you to set a default command and default parameters which will be executed when docker is run. Jun 18, 2024 · RUN is used to build the image and install software, CMD provides default commands for container execution, and ENTRYPOINT sets the main command for the container. Add the -d flag to run everything in the background. I found the following solution: // this worked for me RUN chown -R node:node /app/node_modules // or sh into docker container and run chown -R node:node /app/node_modules In the example you give, you shouldn't need either the -v or -w option. 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. DOCKER COPY COMMAND === Due to some functionality issues, Docker had to introduce an additional command for duplicating content – COPY. Similarly when docker container is created the hostname defaults to be the container’s ID in Docker. Nov 5, 2022 · RUN is an image build step, the state of the container after a RUN command will be committed to the container image. Description. 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 docker run command can be used with many options making the container customizable with robust features. sh) Update for multi-stage builds: I worry much less about reducing image size in the non-final stages of a multi-stage build. Features of CMD. Aug 23, 2021 · If you've installed native Docker packages inside Ubuntu (e. Now you can either use the Container Id to refer to the container created or can use the container name for the same. They don't work the same, however, if you use docker run with an image that you haven't pulled yet, docker run will call docker pull: May 10, 2023 · Sự khác nhau giữa RUN, CMD, ENTRYPOINT trong DockerfileKhi làm việc với Docker, một trong những khái niệm cần phải tìm hiểu là Dockerfile. When docker run executes, Docker first looks for the specified image locally on the host machine In this post I will explain the difference between CMD, RUN, and ENTRYPOINT on examples. When you run a command that references an image, Docker first checks whether it's available locally. See full list on baeldung. You're knee-deep in the world of Docker, and you've stumbled upon two intriguing commands: RUN and CMD. When you build your Docker image, Docker will read in your RUN command and build it into your image as a separate image layer. Containers. Use --dry-run flag to test a command without changing your application stack state. Jun 10, 2022 · CMD bash CMD ["/bin/sh", "-c", "bash"] There would not be an equivalent docker exec command. yml, any arguments after the image name in a docker run command, or the CMD from the Dockerfile. E. Let's jump into this topic together to clear up any confusion and m May 1, 2016 · when container runs as docker run -it <image> will produce output. These instructions include things like installing packages, copying files, and configuring the environment. Jan 29, 2017 · From Dockerfile reference:. CMD can also be declared only once in each Dockerfile of ENTRYPOINT. The command runs in the default working directory of the container. Examples Attach to and detach from a running container. Shell form. RUN export FOO=bar R+ 00:44 0:00 ps aux $ docker top test PID USER COMMAND 10035 root {run. Docker provides binaries for manual installation of Docker Engine. Alternatively, you can also run docker compose up --menu=false to disable the helper menu. In fact, the docker run command can even pull an image from Docker Hub if it doesn’t find the mentioned image on your system. In other words, is there a difference between these commands in a Dockerfile? ENV FOO bar vs. Let's break down each of these instructions to better understand their roles and implications. CMD happens at run time. 01 May 10, 2023 · It seems to me there are 2 alternatives when it comes to running commands on a Docker container. 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 はじめに. Now, let's run this Docker image as a container by running the following command: docker container run custom-image:v1 Dec 5, 2017 · Note that this works however the command part is provided. docker/getting-started Specifies the image to use. Mar 9, 2022 · The command attribute in a docker-compose. RUNapt-get update RUN apt-get install python. ADD command is used to copy files/directories into a Docker image. While in the ~/docker directory, run the following command. Jun 30, 2013 · You can build a Docker image that includes a run command and other configuration, such that a docker run <image> will start the container. May 26, 2021 · when container runs as docker run -it <image> will produce output. VisualStudio. If for example you docker run your-image some-other-command, then it will run the entrypoint wrapper script from the image, but at the end it will run some-other-command instead of the CMD from the Dockerfile. The docker run command creates a new container instance from a Docker image and starts it. This is a popular Linux container image that uses Alpine Linux, a lightweight, minimal Linux distribution. - ex) docker run <image_name> echo world "world Aug 12, 2022 · COPY COMMAND: ADD COMMAND: COPY is a docker file command that copies files from a local source location to a destination in the Docker container. You can check the status of your container by running the command docker ps -a | grep busybox. e. If we add an argument with the run command, it overrides the default instruction, i. Nov 26, 2021 · You can override the command by passing an argument during docker run. CMD changes the default value of the command specified at docker run to the CMD command description in the Jul 3, 2024 · Examples Of Docker Run Command. Start up the application stack using the docker compose up command. GitHub Gist: instantly share code, notes, and snippets. com Jul 15, 2024 · Learn how to optimize Docker command use with our best practices guide on RUN, CMD, and ENTRYPOINT Dockerfile instructions. 27s user 0m 0. Syntax: COPY <src> <dest> Syntax: ADD source destination: It only has only one assigned function. log". The above Dockerfile would result in two distinct layers – one containing package updates, another containing python packages. Instead the command ADD url can be performed even without having installed curl (or analogues) inside the container just because it is executed by the host (it uses the Go libraries with which it is written docker) during the creation Nov 14, 2019 · FROM busybox WORKDIR /tmp RUN pwd # /tmp RUN cd / # no effect, resets after end of RUN line RUN pwd # still /tmp WORKDIR / RUN pwd # / RUN cd /tmp && pwd # /tmp RUN pwd # / (For the same reason, RUN export doesn't do anything that outlives the current Dockerfile instructions, and RUN . - (package를 설치하는 명령어를 주로 사용) 2) CMD - docker가 실행될때 실행되는 명령어 정의 - 만약 docker run 으로 실행될 때 사용자가 직접 실행할 명령어를 입력시 CMD의 명령어는 실행되지 않는다. ENTRYPOINT configures the command to run when the container starts, similar to CMD from a functionality perspective. , it is often used for installing software packages. , docker run -it <image> /bin/bash, CMD is ignored and bash interpreter runs instead: root@7de4bed89922:/# ENTRYPOINT. Apr 13, 2017 · 1) RUN - 새로운 layer를 생성하거나, 생성된 layer 위에서 command를 실행. These commands get when container runs as docker run -it <image> will produce output. Is there any difference in how they run the container internally or both are same doing same work? Jul 11, 2024 · Prerequisites. The command must be an executable. With this tutorial you can set up a docker container, which can be used for your future ROS 2 projects. Targets May 15, 2023 · Run the following command: docker image list. Using CMD: FROM centos:7 MAINTAINER Devopscube RUN yum -y update && \ yum -y install httpd-tools && \ yum clean all CMD ["ab"] While running the container, just add the full ab command at the end of the docker run command. I was just going through this tutorial on Youtube, trying to understand the use of the -v option at the run command. The basic syntax is: docker run [OPTIONS] IMAGE [COMMAND] [ARG] Let‘s break down what docker run does: 1. RUN lets you execute commands inside of your Docker image. ENTRYPOINT: Configures a container to run as an executable. It will then create a container with the name busybox using this image. In general, use the shell form for RUN, and the exec form for everything else. dockerignore file; a NuGet package reference to the Microsoft. I prefer setting CMD for two reasons: docker run image alternate command is a little easier to write than docker run --entrypoint alternate image command; and there's a common pattern of using the entrypoint for doing startup-time setup, then ending with exec "$@" to run the command. g. Docker installed. You can manually pull images with the docker pull command: docker pull httpd:latest. I see the following. sh 123 cmd cmd2 10054 root /usr/sbin/apache2 -k start 10055 33 /usr/sbin/apache2 -k start 10056 33 /usr/sbin/apache2 -k start $ /usr/bin/time docker stop test test real 0m 0. In a nutshell. Multi-Mode Images It’s also a common pattern for images that support multiple “modes” to use the first argument to docker run <image> to specify a verb that maps to $ docker build -t cmd-demo:latest . You can restart a stopped container with all its previous changes intact using docker start. This means your Docker image is made up layers from each RUN command. なぜこの文章を書いたか. Conclusion. g RUN composer -n install) Running the same command above inside a script that is used as entrypoint for the container (i. Apr 5, 2017 · The first time you run a software image, the docker command looks for it on your local system. When we try to build an image using dockerfile, the instructions are executed step by step. Using the RUN instruction (e. To run a Docker container, use the docker run command: $ docker run Darwin. 4. Run Multiple Commands With the docker run Command Using Visual Studio Code and Docker Containers will enable you to run your favorite ROS 2 Distribution without the necessity to change your operating system or use a virtual machine. If you want to publish an image, create a Docker Hub account. or the non-standard RUN source won't cause environment Mar 22, 2021 · FROM alpine:latest # Exec: default container command ENTRYPOINT ["sleep"] # Exec: not a command, so it becomes a parameter CMD ["1s"] This is not possible with the shell form. Locate the Image. Jun 9, 2017 · Updated on June 9, 2017 in #docker. Before diving into the details of Docker ENTRYPOINT vs CMD, let’s establish some context. Boolean The value you see in the help text is the default value which is set if you do not specify that flag. I have taken this from Docker docs. A Dockerfile can have many RUN steps that layer on top of one another to build the image. The syntax of the new command is as follows: docker container run [OPTIONS] IMAGE [COMMAND] [ARG] The old, pre 1. Example of the docker-compose. This works because the image's entrypoint remains intact. 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: You can create and run a container with the following command: docker run -it -d --name container_name image_name bash. These two options seemed exclusive. docker run lets you specify a different command for an individual container instance: docker run my-image +%B. Hello world. docker-compose up (I run this from the command line, from the Solution Directory). Generalmente se usa la instrucción ENTRYPOINT para apuntar a la aplicación principal que se desea ejecutar, y CMD para definir unos parámetros por defecto. Apr 25, 2024 · docker run -d--name container-name alpine watch "date >> /var/log/date. These binaries are statically linked and you can use them on any Linux distro. CMD in the Dockerfile, for example, will be overridden by anything in a docker run command after the image name. Dockerfileの設定項目にはENTRYPOINTとCMDという項目があるが、これらが対になる意味をもつかのような説明や、「CMD とENTRYPOINT」のように、同列で比較対照する記事を良く見る。. If the container has no entrypoint, it's the command: from docker-compose. CMD is the command the container executes by default when you launch the built image. If you start a container it will run the command you specified in your docker file CMD and will use part of your memory and Bear in mind that you cannot download and extract a compressed file/directory from a URL. RUN command can be used in two forms: Shell form RUN <command> Exec form RUN ["executable", "param1", "param2"] CMD. You can override the hostname using --hostname. This command creates a new Docker container from the official alpine image. If you've installed Docker Desktop on Windows (the recommended setup) then you're effectively getting integration between both OSes so it doesn't really matter which environment you use. Feb 4, 2014 · docker run -i -t ubuntu <cmd> The parameter of the entrypoint is <cmd>. If the image isn’t there, then docker gets it from the hub. Use docker ps to list the containers and docker rm -f <ids> to remove them. 但是由于上文说docker run命令行执行时, 可以覆盖CMD指令的值. Jan 10, 2024 · In WSL version 1, due to fundamental differences between Windows and Linux, the Docker Engine couldn't run directly inside WSL, so the Docker team developed an alternative solution using Hyper-V VMs and LinuxKit. Let’s break down what each part of the command does. The command below creates a Docker image called demo (-t demo) from the Dockerfile in ~/docker by specifying the current working directory (. Enlaces de referencia. $ docker container run my-alpine "Hello from the CLI" Hello from the CLI May 20, 2022 · In an enterprise environment, a heavily parameterized docker run command will easily expand beyond four or five times this length. It never creates new containers. When you add or enable Docker support, Visual Studio adds the following to the project: a Dockerfile file; a . Dry Run mode shows you all the steps Compose applies when executing a command, for example: Dec 21, 2019 · In your first example, this processing happens in your local shell, before you run docker run. 15 0. . Apr 30, 2023 · However CMD can be replaced by docker run command line parameters. However, now I've noticed that docker run -dit (or docker run -itd ) is quite common. It can also copy files from a URL. Since this excludes a Command-line argument, the container runs the default CMD instruction and displays Hello, Darwin as output. 4 docker run -it echocmd npm --version //output 5. RUN and CMD are both Dockerfile instructions. Jul 23, 2024 · Add Docker support. conf – just like you would if you were running nginx without Docker. A Dockerfile can have many RUN steps that layer on top of one another to build Jun 5, 2019 · The RUN command creates a temporary container based off of the previous step of the build, executes your selected command, and when the command returns it captures the filesystem changes as a new layer of your image. RUN executes command(s) in a new layer and creates a new image. Feb 18, 2020 · In this article, we explain the differences between Docker ENTRYPOINT and CMD and when to use which Docker instruction. 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. RUN and CMD are very important pieces to a Dockerfile and they both perform much different tasks. sh} /bin/sh /run. $ Docker isn't involved in releasing these packages and you should report any bugs or issues involving these packages to your Linux distro's issue tracker. ENTRYPOINT和CMD同时存在时, docker把CMD的命令拼接到ENTRYPOINT命令之后, 拼接后的命令才是最终执行的命令. On continution of this article, we will dive on discussing the creation of container with docker run command effectively with cover all the possible options. Feb 16, 2019 · docker run -it echocmd //output v8. , an image reference that Docker uses as a template for building and running a container: May 29, 2016 · One may build an image from a docker file with docker build <dockerfile> Container You can create new containers with an image. docker: This is the base command for the Docker CLI (Command Line Interface). RUN happens at build time. Shell form of ENTRYPOINT ignores any CMD or docker run command line arguments. In particular, it does not use the ENTRYPOINT or CMD from the image at all. RUN RUN用于构建正在创建的映像。对于每个RUN命令，Docker将运行该命令，然后创建图像的新层。通过这种方式，您可以轻松地将映像回滚到以前的状态。RUN指令的语法是将shell命令的全文放在RUN之后(例如，RUN mkdir … Nov 13, 2019 · The purpose is to have the container running the command ng server --host ${HOST} --port ${PORT} --disable-host-check and customizing the ENV var with docker run or docker-composes like : default env var (in the Dockerfile) docker run -d --name bar -p 10000:4200 -v /path/to/AngularApp:/www me/ngx-admin:dev Docker Run Command Explained. Docker Entrypoint vs CMD: Solving the Dilemma In short, CMD defines default commands and/or parameters for a container. Docker Tip #7: The Difference between RUN and CMD in a Dockerfile. Various options in the Dockerfile give defaults that can be overridden at docker run time. yml corresponds to the CMD directive in a Dockerfile and to the optional command parameter of docker run and specifies the command to be executed when starting a new container based on the given image. Oct 1, 2020 · RUN vs CMD vs Entrypoint in Docker - The commands RUN, CMD and Entrypoint usually cause a lot of confusion among docker developers. Hello John. 0 ENTRYPOINT Let’s build the image from Dockerfile. Each container has a file-snapshot which is based on the file-snapshot created by the image. Nếu docker run với một command thì default command sẽ được ignore. The easiest way to do this is with CMD from the Docker Builder . Por ejemplo, si usamos docker run demo Overriding arg passed in cmd, el resultado será: Resumen final. Aug 19, 2023 · CMD: Sets a default command or parameters that can be overridden when launching a Docker container. $ docker run cmd-demo:latest bin dev etc home The output is the same as before. ENTRYPOINT defaults to an empty list. RUN command_1 ENV FOO bar RUN command_2 into. The run command creates a new Docker container from an image. RUN or CMD - which one should you use when creating your Dockerfile? It's not always an easy choice. yaml approach. CMD sets default command and/or parameters, which can be overwritten from command line when docker container runs. Azure. Hello Manu Shell form. Jan 29, 2017 · I've used docker run -it to launch containers interactively and docker run -d to start them in background. Use RUN instructions to build your image by adding layers on top of the initial image. Use Dry Run mode to test your command. They seem similar at first glance but are they really? Understanding these differences can be a game-changer for your workflow. A docker run command takes the following Feb 11, 2019 · Then you can append program arguments naturally on the command line, such as docker run nginx -c /test. RUN command_1 && export FOO=bar && command_2 and was wondering if setting the variable with RUN export vs ENV was equivalent. Users are encouraged to use the new Jul 9, 2018 · Can anyone help me in the understanding difference between docker run & docker container run? when i do docker run --help & docker container run --help from docker cmd line. CMD cho phép ta set default command, có nghĩa là command này sẽ chỉ được chạy khi run container mà không chỉ định một command. Understanding all the three commands conceptually will help to have a clearer understanding of the same. Since CMD includes the arguments for echo, you can override these arguments from the command line now. docker run is an alias for the docker container run command. May 26, 2016 · RUN is an image build step, the state of the container after a RUN command will be committed to the container image. entry with the below command Docker RUN vs CMD. Run a command in a new container. Dockerfileを書く際に、CMDとRUNの挙動について調べたので、そのことについてまとめていく。 CMD. 03s May 1, 2016 · when container runs as docker run -it <image> will produce output. Tools. This is more involved than the other options, as it requires you to bundle supervisord and its configuration into your image (or base your image on one that includes supervisord), along with the different applications it manages. e inside docker-entrypoint. Command line access. Contrast the docker run command with docker-compose. Mastering these commands allows you to create more efficient, flexible, and predictable Docker containers. mfl cghwg qgxsh qyshwtk ykuqx ejwkl ipenm xjv bma ulq