Stack overflow docker shell

Stack overflow docker shell. I want to create a container that runs a shell script with a curl command. If you have to, you can arguably use them even in production (which defeats the purpose of increased security - such as hiding environment variables and protecting scripted apps code). What I've Apr 24, 2023 · 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 May 11, 2022 · I have a simple shell script to run a docker command below, which works just fine if I ran it manually. I'm using ubuntu 16. but first step is to run the shell command itself inside the container using docker-py. Asked 2 years, 10 months ago. The file /dev/ptmx is a character file with major number 5 and minor number 2, usually of mode 0666 and owner. 4, build 1564f02 My images: docker pull lw96/ubuntu-16. Can you shed some light on how you would execute a shell script and maybe share the script. -t container:latest docker run -t -d container /bin/bash docker cp Sep 17, 2023 · The POSIX shell specification only defines a limited set of Special Parameters, $@, $*, $#, $?, $-, $$, $!, and $0. In the container, I can find the init. My script file looks like: #!bin/bash. I connected to container like below. #!/usr/bin/env bash set -e docker create -it --name test path docker start test docker exec test /bin/sh -c "go test . Django calls docker; Docker opens a socket; Django returns socket to Frontend (User) Feb 17, 2021 · processes automatically inherit environment variables from their 'parent-process', that spawned them. That requires that wget or curl is present Dec 3, 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Aug 10, 2021 · docker run image_name /bin/bash -c "cd /path/to/somewhere; python a. docker exec -it <containerId> /bin/sh -c "kill -INT <script pid>" Some shell implementations in docker might ignore the Jul 11, 2019 · Docker will create an image for each Instruction on your Dockerfile but if there was an image created with that Instruction already, it will use that image instead. Jun 16, 2020 · Docker buildx build: I simplified this by removing --build-arg and BUILDVAR= parameters, as all but 1 tag: time docker buildx build --no-cache --platform linux/arm64 \ -t f1linux/testrepo:test1 . sh inside a docker container. docker-machine ls docker-machine env --shell cmd <nameOfTheMachine> docker-machine ssh <nameOfTheMachine> The shell you are after is the one provided by the Linux TinyCore boot2docker. ttl file] targeting the graphdb instance to load my RDF data from a file, located at: . I've created a daemonset which adds a systemd unit and timer file to every host in the cluster. When I run this command: $ docker run hello-world I get : docker: Cannot con Mar 21, 2017 · It will keep running your container. I finally need to set an env variable inside the container and run psql inside the container (then obviously run some queries). And I tested cron by creating a simple script to touch a file, and it worked fine. In docker, only one foreground process can run. metadata: name: logclean-updater. Execution: Jan 16, 2017 · docker exec <container> <command>. I don't want to loop over the a Jun 25, 2018 · alternative aws. However, I'd rather not have to manually remove the container. List the services in the stack. py" However, I can specify the default shell in the Dockerfile with the SHELL instruction. 0. after that I did the commit: sudo docker commit 32f8ea080748 test1/test1:latest and I start a new container using the new commited image: sudo docker run -di test1/test1:latest /bin/bash and I used docker exec for checking my file: sudo docker Mar 30, 2020 · I am new to Docker. – m19v Commented Sep 14, 2022 at 1:20 Aug 3, 2020 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I have Windows 10 Family so I installed Linux Bash Shell. Modified 2 years, 10 months ago. If you want to go inside your container than docker exec -it container_name/id bash debug the issue and exit. If you launch any process (e. So I want to run the same input. Any tips gratefully accepted ! This was my docker-compose-dev. . May 25, 2020 · to a container via websocket and get a shell inside his browser, so he needs no additional setup etc. Now I'm not sure how to achieve that, here is the contents of /proc/self/cgroup inside the container: Feb 5, 2022 · If you start a new shell in a container with docker exec, then exit with ctrl+p ctlr+q, that shell is still running. iso image managed by VirtualBox, not the git-bash installed on your Windows host. More or less the compose becomes as follows: myservice: build: context: . However it didn't work if I ran it by cron. Making statements based on opinion; back them up with references or personal experience. Or run the influx client in a separate container: $ docker run --rm --link=influxdb -it influxdb influx -host influxdb Jan 11, 2016 · # find the name of the machine created. docker exec -it --user=root <container_id> /bin/sh and when i try to run the script insid Nov 26, 2018 · It looks like your OS is missing pseudo-terminals (PTY) - a device that has the functions of a physical terminal without actually being one. The example in the docs only shows something like exec_entry p1_entry /bin/sh -c exec_cmd p1_cmd which does not tell me anything. Thanks jrbeverly and user2105103 for the explanation that "EVERY command executed via docker exec is inside the container. I'm trying to connect to a running container or start a new container in interactive mode with the bash shell -- not the sh shell. Basically with this command odoo shell -d postgres you are running Odoo shell instance without any configuration, and Odoo application database selected as postgres, change it to the following Jan 17, 2017 · After some testing and reading the docs it's obvious that there is no way to mimic the dockerfile or docker-compose entrypoint behavior with docker run. I created a Dockerfile: Feb 13, 2019 · The problem probably has to do with refreshing the shell but that is tricky to do as it appears that Docker continues to use the original shell it entered to run the next build stages. List the tasks in the stack. If you don't like the look of concatenated commands, you could write a shell script and RUN that. 7, but it takes a lot longer to run the shell May 23, 2020 · To be more clear on the goal, let's use a better example, say I wanted a portable . But we cannot assume that every container has run shell or Jan 10, 2023 · 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Nov 10, 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Sep 19, 2022 · I'm new to using Docker and need to use a lean OpenJDK 17 base-image to create an image of a Java web application and disable the ability of a user to log into a running container. echo -e 'user\nPassword\[email protected]' | (docker login) returns Username: Password: EOF not complete the operation. The Docker daemon pulled the "hello-world" image from the Docker Hub. Jul 22, 2021 · docker build -t my/image . Sep 15, 2022 · docker run --name build-fw -d -it build-fw docker logs build-fw docker container stop build-fw docker container rm build-fw In Jenkins, I simply created a Freestyle project with the "Execute Shell" build step, where I simply ran the "docker-build. Jan 29, 2018 · From the docker image docs here: Start the container: $ docker run --name=influxdb -d -p 8086:8086 influxdb. Mar 4, 2019 · i try run docker with entrypoint. docker build . docker stack rm. List stacks. g. Mar 4, 2020 · Dockerfile - best practices says that CMD should almost always be used in the form of CMD ["executable", "param1", "param2"…] in which case shell form should be used? May 8, 2018 · I want to open a interactive shell which sources a script to use the bitbake environment on a repository that I bind mount: docker run --rm -it \ --mount type=bind,source=$(MY_PATH),destination=/mnt/ Jun 12, 2017 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; docker-compose run --rm web . Now "docker ps" returns whole data about the container but I was looking for just the container ID to 3. docker run -t -i -p 5902:5902 --name "mycontainer" --privileged myImage:new /bin/bash. /" docker stop test docker rm -test How can I make it work from within a shell script? Jul 24, 2018 · I am trying to deploy/run a spring shell application inside a docker container. It will still keep your container running until you stop with docker stop container_id/name Hope this Dec 10, 2015 · Stack Overflow for Teams Where developers & technologists share private in a command shell: docker exec -it -u root localserver_web_1 sh -c '/root/scripts/define Jan 6, 2017 · Let's say I have a running docker container my_container. E. docker kill $(docker ps -q) docker ps -q get id all containers. However, there is no folder mount_point which should be created by. – Feb 21, 2017 · I suppose I should've read the docker docs more! docker exec -it container mycommand works fine! For some reason I was thinking I had to initiate a bash prompt then use other commands, my mistake. The proposed answers are overriding the entrypoint to a single binary (i. sh" script: Aug 27, 2018 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. $_ isn't one of the standard-defined special parameters, so it expands to an empty Aug 16, 2021 · I am able to get into the docker. scala in this image. These are the two differences: The exec form is parsed as a JSON array, which means that you must use double-quotes (“) around words not single-quotes (‘). The workaround is to run: docker run -d --privileged docker:dind it starts in the background and then I can run docker exec -it <container> sh and get a shell. I want to run: docker exec -it <container_name> /bin/bash or. Then run docker exec. Any suggestions on how to refresh the shell so nvm can work effectively? Apr 5, 2020 · Google's distroless images have versions tagged debug, which contain busybox executable (with sh bundled in). Django checks if the user is authenticated etc. Feb 22, 2018 · AFAIK (correct me if I am misguided here), the environmental variables exported to the shell from which the docker build command is executed, are not passed to the Docker build context, i. Now I want to execute a shell command. sh"] Aug 4, 2016 · docker stop test docker rm -test But when I run it as a shell script, the Docker container is neither stopped nor removed. ) 3. eclipse) from your shell, that shell is the parent-process, so it will get the environment automatically. If you want to change the shell that's used for the container runtime, you can add CMD ["/bin/bash"] to your Dockerfile in order to change the container default executable to /bin/bash. conf. According to the documentation, the exec form is the preferred form. sh file with x (executable) as is in the host. Jan 19, 2021 · I m trying to write a shell script that builds/runs containers and then copies files from docker container to host. Bash (in which case you'd think it should be supported; but subprocess doesn't use your login shell). Run the docker image: docker run -p 80:80 some-image-name:25 2. 3. Provide Jul 14, 2018 · I am basically looking to achieve this 2 steps: 1. The default shell is a POSIX-compliant shell and not GNU bash (see for example this question) so other shell-specific extensions aren't available. without args) and putting the originals arguments to the COMMAND. May 22, 2022 · I'm trying to export environment variables from a Docker container using a shell script. But in docker scenario, I don't think there are any difference as we won't depend on this feature. I start a new shell session with: docker exec -it my_container bash. docker run -it <container_name> <image_name> or. 04 but could also use 18. docker stack ps. ttl file from the graphdb container and how / where to perform this shell command? Sep 27, 2015 · $> docker run -t -i buildfoo enter some bash commands. Run the influx client in this container: $ docker exec -it influxdb influx. For example, if you have Dec 9, 2022 · I am looking at Docker's documentation to understand what would be behavior of ENTRYPOINT defined in exec form and CMD defined in shell form. CMD ["bin/sh", ". These variables will be used by the Java application. sh line: echo `ls -d /input/sub-*/ | sed -e 's/. e. /init. Docker official web says : It is generally recommended that you separate areas of concern by using one service per container Jul 25, 2021 · CTRL+C sends a signal to docker running on that console. *\)\//\1/' | split -l 8 - participants_`. then ^D to exit Then I will have a container running that I have to clean up. sh which calls py2dsc-deb. Remove one or more stacks. It is starting but filing when tries to open CLI. Aug 27, 2014 · I can not make the command "Docker Login" with "shell", I use this command for this type of access, more "Docker Login" it does not seem to serve. yaml I used for testing out an app that was using localstack. yaml up, I also used the same localSetup. Cron doesn't work with docker? Jul 26, 2017 · After some further investigation: Using CMD over RUN is not a perfect solution because of the way those commands work. However if you use docker attach it attaches to the shell at PID 1, not the one started with docker exec. The shell script variables are not being populated when I run the Docker container. loadrdf -c [path to . Running this script file will run the container in a newly invoked bash. yml file except the ports:, and it uses the command you provide instead of the Compose command: or Dockerfile CMD. \\minikube. When you do docker run the container you can tell it to run an interactive shell instead of the main process, and this can help debug the startup sequence. In the documentation it is written: Run a command in a running container. To learn more, see our tips on writing great Jul 30, 2024 · So for this to work, when an administrator runs docker exec, they'd have to explicitly specify that they want to run a shell, and that they need it to read shell dotfiles, sort of like. docker exec -it /usr/bin/npm run test Sep 23, 2015 · I am new to the docker world. run some test on it. here's a short part of a script that removes the /bin/sh -c "" from the command that can appear if you use docker's shell syntax for CMD: Nov 18, 2016 · You can commit exited containers, I tried the following : sudo docker run -d debian:jessie /bin/touch /test1 then checked the container, it was exited. I didn't see any logging in /var/log/cron. sh, but it doesn't exequite . env file which collects the host IP address and then uses that inside the build process. root. Cloud Shell has docker-machine tool pre-installed for you to create & manage your remote Docker VM. scala and it worked. This May 29, 2022 · docker build . Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. In practice I almost never need it: it's usually cleaner to docker rm the stopped container and docker run a new one. yml file OR you can create an empty 'app' folder within the root folder, start with Dockerfile and docker-compose file, go into the shell and do startproject from within the shell with no problems as long as Oct 11, 2015 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. kind: DaemonSet. Thanks for contributing an answer to Stack Overflow! export was just an example, I want to run a shell command inside the container. -t test_build and ran it as. However some of the commands fail in docker version 1. I've tried to open the docker shell, but docker wasn't recognized in the cmd. So given that I can already specify the default shell of a container, why is it necessary to specify again with /bin/bash -c when running the docker container? Jul 18, 2015 · 2. docker run -d -p 8000:80 --name web my/image docker run --rm --name hello my/image \ hello. *sub-\(. Feb 27, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Oct 2, 2021 · Django can be done either way, where you can either create 'startproject' on your local machine, then create Dockerfile and docker-compose. I am running Docker on Windows. Mar 28, 2022 · It's not possible to have separate RUN statement run in the same shell. COPY --progress=plain Remark the --no-cache as a parameter: this ensures we start with a clean slate each build. sh: sudo apt-get install -y docker. sh you used. I'm getting trouble when I try to run a MySQL command inside a container. exe docker-env --shell cmd SET There are two differences between the shell form and the exec form. Aug 16, 2017 · Rather than rely on set -e (which really is not reliable, at least not without fully understanding all the exceptions that don't exit the shel), be explicit about which commands to run. To learn more, see our tips on writing great Jan 22, 2023 · I'm working on a shell script, which from the user's OS, will run a series of commands to open docker, if the user has it already installed, if the user doesn't have it, it will install docker and only after installing docker script will open it. Usually I just nuke everything like this: docker rm --force `docker ps -qa` This works OK for me. calling shell commands on host from container. Problem: py2dsc-deb is not available on Windows. Sep 13, 2022 · Alternatively you may start your docker just from commandline as e. Ask Question. The command docker kill $(docker ps -q) uses to stop running containers. if in my shell I have previously Aug 20, 2021 · i am getting into containerisation and docker and i am trying to create some basic containers. Exit the bash session, which also stops the container. docker exec -it <containerId> /bin/sh -c "pkill -INT -f 'start\. Essentially, it creates an instance of your selected terminal, and every command thereafter automatically utilizes 'docker exec -it ' without the need for manual input each time. To learn more, see our tips on writing great Sep 23, 2022 · For the setup you describe, I'd docker-compose run a temporary container. when user login into system while non login shell not. -f Dockerfile. py test_widget_abc This uses all of the setup from the docker-compose. io sudo service docker start sudo Nov 20, 2017 · I want to build via the docker-compose an image that uses my private key for cloning private git repos. 2018-07-20 19:24:44. If you really needed to mount something, you'd have to do it in your container startup, and you'd have to run the container with the very broad docker run --cap-add SYS_ADMIN or docker run --privileged options. apiVersion: apps/v1. Mar 19, 2024 · Learn how to connect to a shell of a running Docker container and how to start containers interactively May 10, 2014 · You could just enter via docker run -it --entrypoint=/bin/bash $IMAGE -i (you 'll launch a new container from the image and get a bash shell in interactive mode), then run the entrypoint command in that container. 3 After I run: do Skip to main content Stack Overflow Mar 10, 2020 · I need to install docker and login to my repository in one script. With my earlier docker image. But what does it mean exactly? What does it mean to execute a command in container. To learn more, see our tips on writing great Aug 8, 2016 · I am sshing into a server in a shell script and running some docker commands. Jul 30, 2020 · docker run -p 5432:5432 --env-file=". In those scripts I create directories which fails as well. You can then inspect the running container in the state it should be running. I wrote it in dockerfile: Deploy a new stack or update an existing stack. But I have a scala file that I want to run. In your case: the environment is passed on from shell, to eclipse, to your-application. py shell Aug 27, 2018 · I am running minikube instance on window 10 machine. Start the container using docker start. docker stack ls. Viewed 35 times. The Docker daemon streamed that output to the Docker client, which sent it to your Sep 4, 2021 · This related to login shell VS non login shell, login shell will execute . And then I start a process (a Python script for example), and exit the container with cntrl-p then cntrl-q to keep the script running in the background. This one's more like a quibble, btw, but also think about using lower-case names for your own variables; all-caps names are used for variables meaningful to POSIX-specified tools, whereas those tools -- including the shell -- are required to ignore variables with at least one lowercase character in their name as "reserved for applications". /manage. docker exec the-container \ bash -l -c 'test_func' A comment suggests changing these from shell functions to standalone scripts. ttl (relative path from the Dockerfile and docker-compose. Feb 27, 2016 · 2. To send a signal to the script you could use. sudo docker run -it -p 8080:80 --name back_end back_end to make sure you built docker image correctly. What i'm trying to achive is deploy a docker container on the host's docker Jan 4, 2022 · 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Dec 20, 2017 · The docker shell syntax (which is just a string as the RUN, ENTRYPOINT, and CMD) will run that string as the parameter to /bin/sh -c. docker stack services. db_env" -d postgres # Start the postgres db # Prep the db, do some other stuff # docker exec -it CONTAINER_NAME psql -U postgres Currently, I have to to docker ps to get the container name and then paste it and replace CONTAINER_NAME . 12. " Dec 15, 2016 · Docker version: docker --version Docker version 1. This gives you a shell to expand variables, sub commands, piping output, chaining commands together, and other shell conveniences. I used the command docker-compose -f docker-compose-dev. Logging whoami in the CI gives: gitlab-runner. export COMPOSE_PROJECT_NAME=myproject docker-compose run app_test python manage. I am getting errors running other shell scripts as well. Sep 4, 2017 · From the documentation: The ${variable_name} syntax also supports a few of the standard bash modifiers as specified below: ${variable:-word} indicates that if variable is set then the result will be that value. 04-lnmp1. If I run docker run --privileged docker:dind sh it just exit. 04. group of root. Jan 6, 2020 · I am trying to create a shell script for setting up a docker container. – May 7, 2014 · [Updated1] I have a shell which will change TCP kernel parameters in some functions, but now I need to make this shell run in Docker container, that means, the shell need to know it is running inside a container and stop configuring the kernel. - There is a shell script file baz. To start an interactive shell for the Ubuntu image we can run: ole@T:~$ docker run -it --rm ubuntu root@1a6721e1fb64:/# ls bin boot dev etc home lib lib64 media mnt opt proc root run Dec 3, 2019 · shell executor (tagged: shell_executor) docker executor (tagged: docker_executor) the docker executor runs docker commands just fine, but the shell executor throws: I've already set gitlab-runner to the docker's usergroup. Jul 18, 2021 · This ideone demo with nl instead of docker build demonstrates the variations, and coincidentally proves why you want to avoid echo -e even if your login shell is e. yml). Breaking it down: docker ps -q: This part of the command is used to list the IDs of the currently running Docker containers. I'm attempting to write a bash function that starts x number of docker containers, wish an array that holds exposed ports for the given app. This script will run a command and save the output as an environment variable. So when you have multiple Instructions on your Dockerfile to create your image, it's important to organize your Instructions in a way that it reduces the number of intermediate images. Jul 18, 2017 · Input: - There is Windows machine with Docker Toolbox installed. May 11, 2015 · With the Windows Docker Desktop GUI, there's a feature that not only lets you open a direct shell on a container but also opens that shell in an external terminal. – Mar 26, 2021 · I have a shell script like create. Or you can use wget or curl to fetch it and pipe it into a shell. spec: selector: matchLabels: . Ex: My shell script looks like: #!bin/bash echo $1 Dockerfile looks lik Sep 23, 2020 · There are docker run options to add capabilities to a container, but needing these is very rare and they can't be added to the build step. C:\\tools\\cloud&gt;. I can't imagine a situation that exec command is executed by a shell run in the container. RUN can be used any amount of times, to build Docker image layer by layer, while CMD can be executed only once when the image has been build. Jan 11, 2019 · I want to run docker:dind and get a shell. To learn more, see our tips on writing great Oct 2, 2017 · I seem to be stuck here. Several processes in just one container is not a good practice. docker run -it <container_name> <image_name> /bin/bash and get an interactive bash shell. Oct 14, 2021 · The solution provided by @chepner is excellent: docker run -it --rm --entrypoint /bin/sh alpine/git But there is another way to do it: docker run -it --rm --entrypoint '' alpine/git sh Feb 21, 2022 · docker start will re-run the main process in an existing container. #!/usr/bin/env bash read -p "Username : &quot; WEBUSER read -p &q May 13, 2019 · The SHELL command only modifies the shell that is used to execute the instructions inside the Dockerfile. ex. Mar 31, 2024 · Docker entrypoint and cmd together; Explanation. docker container run --rm --name test_run -it test_build sh where there are only two above files in the folder. My question is how to access the rdf. bashrc etc. sh'" Or include echo "my PID: $$" on your script and send. Jan 4, 2018 · Note that with shell commands like shift and set --, you can change the value of "$@". Anyone have any tips? Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; I am trying to get Docker shell completion on this stack (OSX Oct 29, 2019 · Odoo shell need to run with same configuration as you are using your docker container to start, /etc/odoo/odoo. You'll have to get it into the container by using a COPY statement. I have a fix for 1. I'm trying to work with it on windows. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. i have found an image on docker with curl built in. 588 INFO 1 --- [ main] May 5, 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company . One thing also you need to change is docker run -it -d-d will start container with background mode. sh In normal operation you should not need docker exec, though it's really useful for debugging. 7. (Assuming it was not already locally available. Mar 1, 2019 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I simply entered into container and ran spark-shell, post that I did :load input. I have to invoke a shell script that takes command line arguments through a docker container. Oct 5, 2015 · Then connect a shell : $ docker exec -it mongodb-6 mongosh Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Apr 14, 2021 · I am trying to automate some tasks utilizing shell. My initial thought something like: The user send a request for container X to Django. 4. But I want that it will start with a shell. docker_setup. /rdf/rdf. rgvggg zcku kxqjtab pvqx znoy nzkve axpyoza rybwy vwdbve vxvm