Dockerfile run echo. txt They're both declared in the Dockerfile and can be set using flags for the docker build command. 100 foo' >> /etc/hosts ENTRYPOINT /bin/bash Inside the container: root@47040a03cbc1:/ Jan 20, 2016 · RUN echo "bla" > . /result) For something cleaner, you can use also the following gist which provides a small CLI called envstore. 111\n\ IdentityFile /root/$key_name' >> /etc/ssh/ssh_config. The /etc/resolv. Provide details and share your research! But avoid …. Feb 28, 2017 · What's even crazier the option has been picked up by echo, as evident by the newlines being parsed. Take the following Dockerfile: FROM busybox RUN echo 'foo' > /tmp/foo. FROM ubuntu:20. Oct 30, 2015 · You can use what is called "ANSI-C quoting" with $''. env, a complete guide. Overriding Single ENV Variable via Command Line. That means the command passed to run executes on top of the current image in a new layer. However if I just run: docker run -it alpine. Here is my Dockerfile: FROM naminami7/private:strapi-prod ARG NODE_ENV=production ENV NODE_ENV=${NODE_ENV} EXPOSE 1337 WORKDIR /strapi CMD [“echo . #2589. go └── docker-compose. ├── Dockerfile ├── app │ └── main. According to Dockerfile reference: The RUN instruction will execute any commands in a new layer on top of the current image and commit the results. py get MY_VAR) Or you can use python-dotenv library which has a similar CLI. The . The program is given in C but could be any other compiled language that we support like Rust, C++ and Fortran. Sep 21, 2021 · . I thought this might be a problem with docker build quoting each argument in RUN, but even if I run echo "-e" "X\nY" the command prints: X Y Mar 25, 2020 · The above echo command works from windows powershell but the same does not work when it is included in a Dockerfile as given below. Using RUN apt-get update && apt-get install -y ensures your Dockerfile installs the latest package versions with no further coding or manual intervention. By including this step, you ensure that tests are executed during the Docker image build process. I would expected the 2 lined appended to the file, and nano installed, but none of this happens. conf is injected as a bind mount in containers by the docker engine with settings local to that docker engine. Check it out, or continue with this one if you like :) When working with Docker, you’ll stumble over lots of confusing details. 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. In this case, the base image's folder is called base_image_name , and so the base image is called company:base_image_name . It would be better, when you define the file in "a normal way". on the dockerfile and then running docker run <image-id> and getting the results Expected result is daemon , or without the USER daemon line, I expect root . 99. txt -d packages To get list of files in the image, I have tried both the Apr 30, 2019 · Each Dockerfile RUN step runs a new container and a new shell. Under the hood, docker run command is an alias to docker container run. Firstly, we’ll add a run instruction to our Dockerfile: FROM alpine ADD log-event. Learn more Explore Teams Dockerfile This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. I can do docker logs to see these echos but I wanted to know if there was a way for them to show directly in the terminal issuing the run command? Dockerfile: Dec 1, 2016 · So why isn't ARG, a build-time argument, available for interpolation into an ENTRYPOINT argument, also at build-time? I was just looking for some kind of variable for use in a Dockerfile, so I don't have to keep copying and pasting the same string all over the place, without resorting to some external templating tool. x+, you have a docker build --add-host mentioned below, but, as commented in issue 34078 and in this answer:. sh. Because the apt-get update isn't run, your build can potentially get an outdated version of the curl and nginx packages. The RUN instruction executes the necessary command to run tests using a testing framework (in this case, unittest is used as an example). Nov 1, 2016 · Update [08/03/2022]: As of dockerfile/dockerfile:1. 0. /app WORKDIR /app RUN pip download -r requirements. 6. , it doesn't show the output of the above command: Jul 16, 2021 · The answer by @HansKilian is probably the way to go if you are able to change the Dockerfile and check the value of the build-arg on build time. Nov 4, 2014 · If you don't provide a full path to echo in your Dockerfile, the -e flag gets echoed. Jul 20, 2020 · このチュートリアルでは、Alibaba Cloud上でのDockerfileの使用方法について実践的な経験を積むことに焦点を当てています。本ブログは英語版からの翻訳です。オリジナルはこちらからご確… Apr 20, 2018 · Another approach is to embed the script within the Dockerfile and use Docker’s RUN command to create a script to create the file. sh with content: #!/bin/bash echo 3 echo 2 echo 1 echo run You could: Using printf RUN printf '#!/bin/bash\necho 3\necho 2\necho 1\necho run' > /entrypoint. jar EXPOSE 8280 Dec 13, 2013 · FROM phusion/baseimage:0. py: RUN envstore. Feb 28, 2020 · In a Dockerfile, each FROM line starts a new image, and generally resets the build environment. To print the current workdir and then build the image using the command: docker compose build --no-cache <name of service> 2>&1 | tee build. The Dockerfile. Aug 30, 2019 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. The documentation says that docker build is verbose by default. RUN echo "install this" && command that install this or maybe just. box. When I try to define a Dockerfile like this: FROM alpine CMD ["echo","Hello, world!"] ENTRYPOINT ["/bin/sh"] and then execute: docker build -t test . Jun 6, 2020 · docker container run [OPTIONS] IMAGE [COMMAND] [ARG] The old, pre 1. RUN echo "here are some numbers: $(seq 10)" When I run docker build . It appears echo's only show here if the -d option isn't used. If your image needs to specify ARG s, they need to come after the FROM line; if it's a multi-stage build, they need to be repeated in each image as required. Dockerfileには、 ARG という定義命令があります。これは、dockerfile内で使用できる変数で、変数の値によって生成するイメージの中身を変えることができます。 環境変数であるENVとは異なり、Dockerfile 内でのみこの変数を使用することができます。 We would like to show you a description here but the site won’t allow us. With Docker 17. I build successfully image, but cannot start. 191. You need to use Docker Buildkit by setting DOCKER_BUILDKIT=1 in your environment, set the syntax parser directive to use dockerfile/dockerfile:1. Now Dockerfile of web containes all those varibales through args during build. An empty file in the parent filesystem is an artifact of that bind mount. Apr 27, 2020 · Because the RUN command executes the commands when you are building the image not when you are spinning up the container using the image. yml 元々、Dockerfile内のechoパッケージのインポートはRUN go Jun 8, 2017 · Don't use -in variable names. In the Dockerfile, define your base image by adding the following line: Mar 19, 2024 · We’ll edit the . However, the script fails at the first echo command. I have tried running them after starting the containers, and they work fine. Jun 13, 2023 · In this improved example, a dedicated step is added to run tests within the Dockerfile. Description. Build and run it: docker build -t hello . This collects the argument key_name, and then appends some text to the ssh_config text file. 0, the Here-Document support has been promoted from labs channel to stable. Docker は Dockerfile から指示を読み取ることにより、イメージを自動的に構築できます。 Dockerfile はイメージを構築する為のコマンドを記述したテキストドキュメントです。 Nov 29, 2016 · I'm trying to automate a creation of a development Docker image using docker build command with appropriate Dockerfile. FROM dockerfile/java RUN sudo echo "XX. I get: /bin/sh: can't open 'echo': No such file or directory. I made image from container with commit command and now I cant run this image, not a single CMD command is executed. So it is a lot easier to read. XXX some. It drops me into a shell and I can run echo with no issues. docker run -it --rm --entrypoint /bin/bash test hi /bin/bash: hi: No such file or directory docker run -it --rm test bash $ hi hello Feb 22, 2018 · You need to use build-time variables (–build-arg). Nov 24, 2017 · RUN echo 'Host geoserver\n\ User user\n\ HostName 38. イメージ作成時に実行するコマンドの指定できます.複数行にわたって書くこともできますが,イメージサイズを抑える目的で「&&」を使用して一行に書くことが推奨されています. Jul 22, 2021 · I have this Dockerfile, where I run a command with RUN, and I want to see its output when running docker build: FROM alpine:3. 5-windowsservercore COPY . 5MB Step 1/2 : FROM scratch ---> Step 2/2 : RUN echo "Hello World - Dockerfile" ---> Running in 42d5e5add10e invalid reference format I want to run my image with a windows container. Run the Container in the Dockerfile Example. The docker run command runs a command in a new container, pulling the image if needed and starting the container. Modified 4 years, 10 months ago. You can restart a stopped container with all its previous changes intact using docker start. For example, you might experiment with this Dockerfile: Dockerfile. May 6, 2016 · Dockerfile: FROM ubuntu:latest RUN touch /tmp/foo RUN echo 'bar' > /tmp/foo RUN echo '192. txt RUN echo 'bar' >> /tmp/foo. Asking for help, clarification, or responding to other answers. bash -c 'source /script. sh / RUN ["/log-event. Both can be used to parameterize the build. 0, and swap the position of the here delimeter with cat. bashrc As usual this will only work for interactive shells: docker build -t test . 13 syntax is still supported. はじめに. sh", "image Apr 6, 2020 · This dockerfile has a spark path, retrieves the file name and installs the same. Feb 4, 2021 · Alternative solution. I understand the docker build --no-cache will disable caching for the entire Oct 21, 2018 · For additional, related recommendations, there is also a page dockerfile_best-practices. bashrc file to export a new PATH at the beginning of every shell session. It was originally a ksh93 feature but it is now available in bash, zsh, mksh, FreeBSD sh and in busybox's ash (but only when it is compiled with ENABLE_ASH_BASH_COMPAT). It certainly works – but we create a new layer for each RUN, making our image much larger than it needs to be (and making builds take much longer). Build arguments are variables for the Dockerfile itself. One of the scripts that I need to run in a RUN command wants the user to click through and read their license agreement. Jun 9, 2017 · PWD is an special variable that is set inside a shell. sh CMD chmod +x script. Dec 4, 2014 · Is there a way for echo's to show up in the terminal where the docker run command is issued. txt # create a mountpoint on /tmp VOLUME /tmp # End of the Dockerfile' > Dockerfile $ $ docker build -t test-image . I think this is at the very least necessary for pulling a Windows image without incurring in this error: Jun 7, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Dec 24, 2021 · $ echo ' # This is the Dockerfile FROM ubuntu RUN echo "subscribe for more content like this" > /tmp/foo. Let’s see how this looks in action. Users are encouraged to use the new command syntax. 4. Mar 19, 2024 · We’ll use the following Dockerfile: FROM ubuntu:latest RUN echo 'This is a Baeldung tutorial' Let’s understand it quickly: the first line states that we use the latest ubuntu image; the second line passes the echo command as a parameter of the shell; Let’s build our image: $ docker build -t baeldungimage . Some editors will automatically add an extension to the file (or complain it doesn't have one). env file provided through the docker run--env-file option. Use the -e option with docker run to override a single defined ENV variable when creating a container. Apr 21, 2020 · There are several ways to write commands with multiple lines in Dockerfile, for example you wanna echo a bash file entrypoint. In fact if I attach to a container and run the same command again, I get the correct file content. In the latest stable version of docker for windows the build output looks completely different and is not showing any stdout from any command. Probably a really simple answer. Now typical dockerfile of web, This means you can see them with env and perform shell processing on the variables that you cannot do in a Dockerfile. 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。 Jun 5, 2016 · Dockerfile ARG. sh(shell script) file inside Dockerfile. Example 1: FROM ubuntu:latest MAINTAINER [email protected] RUN apt-get update RUN apt-get install -y apache2. Mar 19, 2024 · The run instruction executes when we build the image. We show now how to create a container image that contains a very simple hello world program running inside an enclave. conf Use double quotes if you want to expand variables. When docker RUN something it does that with this form sh -c 'something', passing the pre-defined environment variables from ENV instructions, where PWD is not in that list (see it with docker inspect <image-id>). May 14, 2021 · It's fairly simple actually. 9. On many systems sh will be dash or ash or another very minimal shell with slightly different rules than the shell you typically use. 2 joins them:. CMD [ "cmd" ] Install echo command on any operating system and in Docker. 168. Docker RUN commands are hard coded to use /bin/sh -c. This technique is known as cache busting. docker run --rm hello This will output: Jun 1, 2020 · Following is my dockerfile: FROM python:3. Therefore you run the command unprivileged and you get the permission denied. To achieve that I want to append a few text-lines to said file like so: Feb 28, 2019 · base_image_name/ Dockerfile derived1/ Dockerfile derived2/ Dockerfile When the base image builds, it grabs its name from its current folder by using ${PWD##*/} . RUN . sh . RUN echo "Hi There - Welcome to Jul 30, 2021 · RUN apt-get update RUN apt-get upgrade -y RUN apt-get install -y But, sadly like too many intuitive solutions, this doesn’t quite do what we want. Aug 12, 2023 · 「dockerfile」の基本的な使い方と作り方について学びたいですか?dockerfileは、Dockerのためのスクリプトファイルで、コンテナ化されたアプリケーションを一意に構築・管理する主要なツールです。この記事では、dockerfileの作成方法と適切なコードの書き方を、具体的なコード例とともにわかり Dec 2, 2019 · To run the example from the documentation that the OP posted, I believe one needs to switch the docker daemon to run Windows containers instead of Linux containers. Mar 19, 2019 · Now when you run docker-compose up -d command, docker-compose file takes values from . exe /online /enable-feature /all /featurename:iis-webserver /NoRestart # Creates an HTML file and adds content to this file. And the execute result Sep 3, 2015 · #Example with apt-get update, install and clean it's cache RUN apt-get update -yq \ && DEBIAN_FRONTEND=noninteractive \ apt-get install -yq pkg1 pkg2 pkg3 \ && find Jun 4, 2017 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jan 6, 2016 · docker run -i --log-driver=none -a stdin -a stdout -a stderr e. docker run -it test. /somejavaapp. g. Oct 12, 2019 · Dockerfile "RUN echo" with redirect command results in Mangled Filename [closed] Ask Question Asked 4 years, 10 months ago. See full list on baeldung. env file then pass it to docker-compose file. I don't see any output from these two commands even if they are not cached. Allows you to configure a container that will run as an executable. Jun 13, 2016 · I add the line to my dockerfile: RUN pwd. To do so, we’ll run a quick script to append the export to the original file. 1kB Step 1/6 : FROM ubuntu AS base ---> a7870fd478f4 Step 2/6 : RUN echo "base" ---> Running in e850d0e42eca base Removing intermediate container e850d0e42eca ---> d9f69f23cac8 Step 3/6 : FROM base AS stage1 ---> d9f69f23cac8 Step 4/6 : RUN echo "stage1" ---> Running in 758ba6c1a9a3 stage1 Removing Jan 12, 2023 · Hello, Im new to Docker. Each time, I run command: sudo docker run -i -t my_memcached /bin/bash Sep 29, 2020 · RUN executes the command when you are building Image. If you want to run . '\ >> /etc/sysctl. As we did earlier, we’ll check that this change doesn’t impact the global PATH variable. sh #OR RUN /path/to/test. And then add these options to your docker build command: --progress=plain --no-cache. com Apr 4, 2020 · # From Host echo $(pwd) # Drop into docker shell docker run -it continuumio/miniconda3:latest bash # Now you are in the docker shell! echo $(pwd) echo $USER Cool, huh? This is perfect for debugging a container that absolutely should be working properly. For the use case you mention in your question, you could either write. UPDATE: There’s a new, improved article on this topic - Docker ARG, ENV and . Sending build context to Docker daemon 219. 1 executes multiple RUN:. You can pass the file into your container - see for example below. Then the result is committed to the image. Jul 14, 2021 · When Docker runs a container based on this Dockerfile, it will invoke the echo command and pass the argument of Welcome, friend. Surprisingly, I can go into the container from which the image is made and all the commands work there. XX. 1 -p 11211 EXPOSE 11211 ENTRYPOINT usr/bin/memcached. py set MY_VAR bla RUN echo $(envstore. 14 COPY . Use them to parameterize values of Dockerfile instructions. If you try to set an environment variable in one shell, it will not be visible later on. As illustrated by issue 684, export won't persist across images. sh Using cat Jan 17, 2021 · To counter the fact that the shell is ignoring the \n when using double quotes and that using single quotes performs no variable expansion, you can create a variable to hold the newline character and expand it in a string surrounded by double quotes. FROM busybox RUN echo This is the A > a &&\ echo This is the B > b &&\ echo This is the C > c I am trying to write a dockerfile in which I add a few java-options to a script called envvars. A list of all docker container run options can be found on the Docker documentation page. So, we can squish this into a single RUN Feb 5, 2023 · run. The shell form prevents any CMD or run command line arguments from being used, but the ENTRYPOINT will start via the Create a file named Dockerfile in the same folder as the file package. txt Run: docker r Mar 20, 2023 · RUN dism. txt RUN /bin/echo -e 'test2' > /test2. 18. com MyFriendlyBoxName" >> /etc/hosts ADD . Why am I not seeing the output from commands? I used to see them before. See the format, syntax, and examples of Dockerfile commands, including RUN, CMD, ENV, and more. I will take advantage of the echo command from earlier, a shortened version in a Dockerfile: RUN echo "file contents" > script. html # Sets a command or process that will run each time a container is run from the new image. RUN echo "Hello World - Dockerfile" > c:\inetpub\wwwroot\index. 19 MAINTAINER anhducbkhn RUN apt-get update RUN apt-get install -y memcached RUN memcached -d -u nobody -m 1024 -l 127. Jun 10, 2019 · This means that Docker only needs to build from the 1st changed line in the dockerfile onwards, saving much time with repeated builds on a well-crafted dockerfile. Jan 5, 2021 · Dockerfile: FROM ubuntu RUN echo "test" which would output test to my shell. It is used to alter the image like adding new packages using apt-get or changing file permissions etc RUN どこに対して実行されるのか? Dockerfileは自分の作業PC上で書いている。 Dockerfileは「こういうコンテナを作ってね」という指示書のようなもの。 RUNコマンドは、FROMで記載したベースイメージに対して追加で行っていく処理を表す。 Oct 20, 2020 · Dockerfile reference の日本語訳。. Feb 1, 2022 · RUN echo -e '\ Hello World!\n\ This is an example on how to\n\ append multiple lines to a file from within a Dockerfile. XXX. It's important to note that the Dockerfile has no file extension. Share Apr 8, 2016 · RUN commands in your Dockerfile execute as part of the docker build process. If your script is being run by the sh shell, but you want bash, the proper solution is either to have the sh process invoke bash as a one-off, e. EDIT: Learn how to use Dockerfile instructions to build images automatically. . Otherwise, here is another way to know after the image build time what were the values of the build args: the only requirement is that after the ARG directive you are interested in, there is at least one RUN directive (but not necessarily using the Snippet from my Dockerfile: FROM node:12. 04 ENV name friend CMD echo "Welcome, $name" # or ## ENTRYPOINT echo "Welcome, $name" Apr 21, 2020 · There are several ways to write commands with multiple lines in Dockerfile, for example you wanna echo a bash file entrypoint. Dockerfile file extensions. sh && …', or you could even go so far as to avoid bashisms (like source) entirely, and instead opt to only ever use valid POSIX equivalents, e. The resulting comitted image will be used for the next step in the Dockerfile. But they each serve a distinct purpose. to run the alpine image and execute the UNIX command cat in the contained environment: echo "This was piped into docker" | docker run -i --log-driver=none -a stdin -a stdout -a stderr \ alpine cat - | xargs echo This is coming out of docker: emits: Docker Dockerfile 什么是 Dockerfile? Dockerfile 是一个文本文件,包含了构建 Docker 镜像的所有指令。 Dockerfile 是一个用来构建镜像的文本文件,文本内容包含了一条条构建镜像所需的指令和说明。 通过定义一系列命令和参数,Dockerfile 指导 Docker 构建一个自定义的镜像。 Feb 2, 2016 · I have a few RUN commands in my Dockerfile that I would like to run with -no-cache each time I build a Docker image. log はじめに dockerfileでアプリケーションをインストールした後に、設定ファイルをカスタマイズしたいことはよくあると思います。dockerfileでvim等のテキストエディタをひらくことはできないので、ファイルを編集するためにechoを使います。 Jan 28, 2019 · cat > Dockerfile <<EOF FROM alpine:latest RUN echo ' *****first row ***** ' >> /home/myfile RUN echo ' *****second row ***** ' >> /home/myfile ENTRYPOINT cat /home/myfile; sh; WORKDIR /home EOF But if I have 100 lines it takes time because it runs each command separately and make it as a layer. sh #5: LABEL – Sep 15, 2014 · RUN apt-get update \ && apt-get install -y sudo RUN adduser --disabled-password --gecos '' docker RUN adduser docker sudo RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers USER docker # this is where I was running into problems with the other approaches RUN sudo apt-get update Oct 6, 2014 · Everytime docker successfully executes a RUN command from a Dockerfile, a new layer in the image filesystem is committed. It does not invoke a command shell: CMD ["/usr/bin/echo", "Hello World"] The exec form is parsed as a JSON array, which means that you should be using double-quotes around words, not single-quotes, and you should give the full path to an executable. 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. So when you execute RUN echo "hello World", echo "hello World" will print out a "hello World". The --add-host feature during build is designed to allow overriding a host during build, but not to persist that configuration in the image. Nov 24, 2022 · The -e command-line argument of the docker run command. /script. If you just want to print stuff using in the build proccess you could just add the following line to your Dockerfile: RUN echo "hello there". 0 RUN echo "hello world" RUN psql --version When I run docker build . The output while Sep 11, 2014 · I'm running docker build . This is run as follows: docker build --build-arg key_name=GC -t pyramid . jar /tmp/ #CMD java -jar /tmp/somejavaapp. To review, open the file in an editor that reveals hidden Unicode characters. RUN set -x && command that install this to automatically display the command that is run during the docker build. Mar 18, 2024 · After building the Dockerfile, let’s run the container: $ docker run -v $(pwd):/home dockeroutput. Docker build will always show you the line as is written down in the Dockerfile, despite the variable value. It looks like the echo is being run as /bin/sh instead of /bin/ Aug 31, 2016 · Now available on Stack Overflow for Teams! AI features where you work: search, IDE, and chat. /test. CMD echo 'Hello world' This is the exec form. I used this as a way of debugging my builds. /result RUN echo $(cat . This flag allows you to pass the build-time variables that are accessed like regular environment variables in the RUN instruction of the Dockerfile. To reproduce, create container with Dockerfile: FROM ubuntu:latest RUN echo -e 'test1' > /test1. This is a dirty hack, not a solution. You've already built this layer in a previous build, so it's being skipped and taken from cache. I have a simple Dockerfile but the first RUN command (to append a host IP address to /etc/hosts) has no effect. Build arguments. This way, we can provide the output file that accepts the stdout output from the command. sh CMD Dockefile内でyumリポジトリ設定のような複数行をechoしてリダイレクトしてファイルを作成する方法です。次に示すように$付きの文字列としてechoします。 改行は\\nと記述します。RU… Sep 11, 2018 · In a nutshell - seems like RUN commands in the Dockerfile never run. Jan 19, 2019 · You add the user ros to the group sudo but you try to apt-get update without making use of sudo. json. So use this variable name a_version: FROM foo RUN echo 'alias hi="echo hello"' >> ~/. FROM busybox RUN echo This is the A > a RUN echo This is the B > b RUN echo This is the C > c Dockerfile. . COPY test. Build step 2 After this line, any RUN line will be a cache miss if the arg value changes. We run the container using the v option so that we can map our current directory to the home directory inside the container. How can I see the output of any command in the build process? If your RUN command works in your shell but not via your Dockerfile RUN, it's likely a quoting issue. The exec form is the preferred format of CMD. They are for making changes to the image that you are creating. (Think how meta that is!) I prefer this approach. Conveniently you can use those layers ids as images to start a new container. (Don't forget that each Dockerfile directive will generate an intermediate container, committed into an intermediate image: that image won't preserve the exported value) Oct 16, 2018 · Sending build context to Docker daemon 194. sh with content: #!/bin/bash echo 3 echo 2 echo 1 echo run You could: U… A minimal Dockerfile looks like this: FROM alpine CMD ["echo", "Hello StackOverflow!"] This will instruct Docker to build an image based on Alpine (FROM), a minimal distribution for containers, and to run a specific command (CMD) when executing the resulting image. ommj tcoh fbgw qvfzkycq yienrj qiyuqpl jkhnrg ldwnnqbcd unh lxya