Docker exec sh script

Docker exec sh script. Dec 6, 2023 · While ‘docker run bash’ is a powerful command, it’s not the only way to interact with Docker containers. sh is very Jul 18, 2018 · I want to write a shell script that enters into a running docker container, edits a specific file and then exits it. sh script is executed only the first time influxdb is launched. Ask Question Asked 8 years, 6 months ago. Paste the following command Jan 18, 2023 · Hi Support team, Please provide me inputs. sh: line 16: log: command not found, and status is Mar 15, 2016 · Also checkout docker exec -i mycontainer bash < mylocal. sh it will run: sudo chmod 755 upload. 1 0. We need to copy a Bash script from the host machine to the container and then to execute this script in the container, but from the host machine. is your script executable ? (chmod +x init. sh . sh and put it in the same folder as the dockerfile; Create the dockerfile as below. The docker-entrypoint. sh"]. sh or /bin/sh will run it right. I can run images from Docker Hub. Jul 3, 2019 · I have a docker exec command, and I want to wait for it to complete before continuing the rest of a shell script, how do I accomplish that? #!/bin/bash docker exec -it debian sleep 10; wait echo done Update: should not use -it option #!/bin/bash docker exec debian sleep 10; wait echo done Aug 9, 2020 · We have a Docker container, which we construct dynamically. yml exec postgres bash Then, use psql command and specify the database name with the -d flag and the username with the -U flag I'm trying to write a docker image to run a simple webserver though netcat. In order to start a Bash shell in a Docker container, execute the “docker exec” command with the “-it” option and specify the container ID as well as the path to the bash shell. To exec in as root user: docker exec -it --user=root containerid-here bash. /bt. sh: not found For more reference and information this is my entrypoint. If you run your script by. My bash script: make_db. /file. Use the --env (or the -e shorthand) to override global environment variables, or to set additional environment variables for the process started by docker exec . May 7, 2016 · #!/bin/bash # uncomment two following lines to force log to /tmp # exec 1>/tmp/cronlog-$$. Thanks for Oct 6, 2020 · I'm trying to run the following docker exec command in a bash script where I'm passing 2 parameters into the bash script. Dec 16, 2019 · In the list of files I can see the script I want to execute /home/tmp # ls Dockerfile compile. The --gpus flag allows you to access NVIDIA GPU resources. sh file. sudo docker pull mongo Now set up MongoDB container. The script will return with the exit code of the failing command. ' # copied from terminal console! docker exec -it mongodb mongodump -d meteor -o /dump/ Executable flag. HEALTHCHECK --interval=2s CMD . Dec 24, 2019 · Docker Exec Bash. I am working on Snowflake to Kafka connectivity using jdbc connector. I have called the shell script jdbcsetup. sh Now rebuild: docker build --tag nginx-healthcheck-fixed . It sits in a folder /root/FrMG_Files/. But, when I attempt to run this same Then, a user could ask udev to execute a script that would docker exec my-container mknod newDevX c 42 <minor> the required device when it is added. Mar 7, 2020 · beyond your main question, note that your Dockerfile is suboptimal, because it uses the multi-stage build feature of Docker (namely, you have several FROM in your Dockerfile), while it seems this feature is unneeded for your use case. Once initialized, you must clean your docker volumes associated with this image. sh looks like this In an interactive shell, source tells the shell to read the commands from the file without creating a subshell. If you use docker-compose : docker-compose down -v Aug 3, 2014 · Assuming that the script has not yet been transferred from the Docker host to the docker image by an ADD Dockerfile command, we can map the volumes and run the script from there: sudo docker run -it -v <host-location-of-your-script>:/scripts <image-name> bash -c "/scripts/<your-script-name>; bash" Sep 17, 2019 · I am trying to create a PostgreSQL 11. sh or whatever file you’re converting. – Jan 4, 2018 · set -e sets a shell option to immediately exit if any command being run exits with a non-zero exit code. tgz files piped into tar) - its just using the '-i' to pipe into the container process std input. -it – Starts an interactive terminal session so you can run multiple bash commands. Aug 22, 2020 · Hi, I need to use a program written by someone else within a Docker container. sql Dec 26, 2023 · Docker Run Bash Script: A Powerful Tool for Automating Tasks. sh: a couple of git config --global commands), it would be best to RUN that script once in your Dockerfile, but making sure to use the right user (the global git config file is %HOME%/. It should be executable (as in chmod +x), and it should begin with a "shebang" line #!/bin/sh # ^^^ as the very very first thing in the script Outside Docker you should be able to run . Dec 24, 2015 · Docker exec in bash script. 5 docker container. If I start the container manually, removing the internal script execution at startup, I can then login to the container, and execute this script manually, without any issues. Modified 8 years, 6 months ago. 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. sudo docker exec -it container bash But I want a command that executes a bash shell in the container and then executes more commands in the bash prompt. Dec 31, 2019 · I have several running containers configured, and they are all running as intended, with one exception. Why? I am not able to resolve the issue with sudo inside of Docker, I mean each time I got errors when I try to execute that script in the container: sudo: unable to stat /etc/sudoers: Operation not By using the CMD, Docker is searching the sayhello. g. If the script is on the host then: docker exec -i <container_name> mysql -u root -ppassword <mydb> < /path/to/script. sh no executable flag are required, but you Jul 6, 2024 · Docker is a platform to create, configure, organize, and run containers. sh sdk-develop /home/tmp # However when I try to run it it cannot find the script /home/tmp # . /HealthCheckTest. docker logs demo -f Dec 26, 2019 · When your Dockerfile runs RUN . it can be only used by chmod command(i replaced chmod command before semicolon with echo and got "permission denied". Note: You still need to explicitly add initially present devices to the docker run / docker create command. JS docker container with this Stack Overflow question and answer. Let‘s examine what each part does: docker exec – The Docker CLI command for running a new process in an existing container. Jan 23, 2018 · Then just use it on a file by running dos2unix docker-entrypoint. Aug 24, 2022 · RUN /Script. From the man page for docker-compose exec: Disable pseudo-tty allocation. Here are the steps: Create a script file e. If you wish to update the running PATH BTW, if this is a bash script, not a sh script, a . Mar 26, 2018 · $ exec . sh abc. sh from the folder /root/FrMG_Files. In doing so, I want to run a SQL script that creates the necessary users, tables, etc. sh: line 1: #!/bin/bash: No such file or directory. On Windows, decent text editors (Sublime Text, Notepad++, any IDE, etc. Using sudo inside the docker fails because sudo is not installed, there is no need to use sudo inside the docker because all of the commands inside the docker run as user root. I feel that the script wont run because it should be docker run -ti test sh /file. html run_netcat_webserver. A common mistake is using multiple command in your docker-compose file, like so: i didn't find any of these solutions to be effective for my use case: needing to store the returned data from the SQL to a bash variable. Jan 14, 2016 · One does not need to copy the script first. If you have done everything correctly, you should see a log message s6-rc: info: service myapp successfully started at container startup. log # exec 2>/tmp/cronlog-$$. sh extension leaves a misleading impression about which interpreters can execute it. Although each command works correctly when started manual Aug 14, 2020 · About your concrete question. Oct 5, 2015 · Download the latest MongoDB Docker image from Docker Hub. Feb 21, 2017 · You can execute a bash shell in a docker container by using. We discussed different approaches using Dockerfile, the docker run command, and the docker-compose run command. /setup. I can run the script without problems from within the container (starting the container with the -it switch) with the command . Containers are isolated, self-contained units of software that can run on any platform that supports Docker. 0 4448 692 ? Mar 18, 2024 · In this article, we explored various ways to execute multiple commands on a Docker container. In this comprehensive guide, we‘ll cover everything you need to know about utilizing docker exec for scripting in Docker, including best practices, examples, pitfalls, and alternatives. sh and then docker exec -it container . 40 05 * * * bash /root/scripts/direct. It no longer has with CRLF line terminators as we saw in the IRC chat log. gitconfig, which by default is the /root one) The docker exec command provides a straightforward method for running scripts inside Docker containers. sh And to run from a bash session: docker exec -it mycontainer /bin/bash From there you can run your script. Jul 16, 2018 · To exec in as the user the container is running as: docker exec -it containerid-here bash. Aug 6, 2023 · Step 3: Let’s build a docker image from this Dockerfile with the name script-demo. /upload. Docker should now show that the container's HEALTHCHECK status is healthy, in docker ps and docker inspect <container sha>: Jan 15, 2015 · I'm using Docker on MacOSX (with Boot2Docker). Nov 3, 2023 · Here is the basic syntax: docker exec -it <container name or ID> bash. docker exec -it containername bash Launch the MongoDB shell client. Finally, for more complex processing, we learned how to create a shell script and execute it in our container. Docker will use platform emulation if the specified platform is different from your native platform. docker-compose logs solr | head Update 1: If you run this image with docker run -it --rm -p 80:80 --name test apache, you can then examine the container's processes with docker exec, or docker top, and then ask the script to stop Apache: $ docker exec -it test ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0. docker run -P mylocalimage bin/a3-write-back or I get: docker "env: can't execute 'bash': No such file or directory" Apr 7, 2022 · with docker exec -d someContainer some command from the command line, with CMD ["some", "command"] from your Dockerfile; with command: some command from a docker-compose file; if none of these is working for you, probably, you are doing something wrong. sh is the shell form of the RUN instruction, which will execute /bin/sh -c <command>. Simply remove the sudo from line number 5. . Docker is a powerful tool for creating and managing containers. err PATH='. Dec 30, 2022 · Hi, I am working on my first Docker deployment and run into issue which I have tried to resolve from several hours. I need to start an application inside of the container, at container runtime. Within a container, an initial PID 1 process takes the role of the init origin in that environment. I have made a script file called bt. Access an NVIDIA GPU. yml> exec postgres bash For example if you want to run the command with a docker-compose file called local. Therefore I need to execute a . sh"] Make sure your script can execute normally. 0. Viewed 2k times 2 I'm creating dynamically docker containers via May 8, 2016 · docker-compose -f < specific docker-compose. Of course, if your image has a different shell, you can specify it instead of bash. To execute the script directly use the exec array form instead: RUN ["/Script. /compile. sh and it should run Feb 26, 2016 · Docker exec in bash script. Executing 'bash -c' in 'docker exec' command. yml, here the command will be . In your case, you want the initial shell to execute the commands from a script. sh script: When a Docker container is run, it runs the ENTRYPOINT (only), passing the CMD as command-line parameters, and when the ENTRYPOINT completes the container exits. sh su postgres -c "createuser -w -d -r -s docker" su postgres -c "createdb -O docker docker" Dockerfile May 18, 2017 · the thing is nothing uses it- i've tried to create new image and use this command- it returned with that err. ) should be able to do it. As such, this process is the one that the container depends on to continue functioning. You can check the container logs using the following command. The ‘docker exec’ Command. Also don't use the root directory as working directory. Try with: Mar 29, 2017 · Thank you for this! For docker-compose users, I wanted to add that I had a similar command to run - I wanted to delete redis keys based on a pattern - and was able to do so with the docker-compose exec -T command. sql Or if the Use db directive is contained inside the script: docker exec -i <container_name> mysql -u root -ppassword < /path/to/script. Done deal! Now if you ran file docker-entrypoint. The command is supposed to delete directories that begin with a certain string. Sep 23, 2015 · How can you just start a script like this docker run -ti test /file. Jan 6, 2020 · You can run a command in a running container using docker exec [OPTIONS] CONTAINER COMMAND [ARG]: docker exec mycontainer /path/to/test. I am able to create the image and view it in Docker Desktop BUT I am not able to run the container. sh: /bin/sh^M: bad interpreter: No such file or directory Save the file with Unix-style line endings. sh file in the PATH, BUT you copied it in / which is not in the PATH. i ended up with the following syntax when making the call from inside a bash script running on the host computer (outside the docker mysql server), basically use 'echo' to forward the SQL statement to stdin on the docker exec command. sh bash: setup. sh. However, whenever the container starts I see the May 19, 2020 · SHELL Script. docker-compose -f local. sh /bin/sh: . Two other commands, ‘docker exec’ and ‘docker attach’, offer alternative methods of interaction. So init is the first argument which in turn tries to run init. mongosh #now it is mongosh to access shell The start of the script had the line #!/bin/bash, and during execution of docker-compose up (after successfully building with docker-compose build, the logging reported web_1 | . You might consider taking that out -- it's not conventional for UNIX commands to have extensions (you don't run ls. sh - and i got Container container is not running Dec 6, 2017 · Now we simply need to docker build () and docker run -p 80:80 (). However, when I try to run one of my own images like this: docker run -P mylocalimage or. sh it would look like this instead: docker-entrypoint. – Jan 10, 2023 · Using a custom shell script inside the docker container is another use case for entrypoint. isMaster()'" This calls the shell (sh) executing the script in quotation marks. Make sure your script is executable (run chmod +x Script. This will copy the script to the container and will run it as part of the ENTRYPOINT using the arguments from CMD. In General: Can i execute a script outside a container? installing all the modules in the node-red container wasn’t sucessfull and I think this is not the best way to do. I have a bash script in Docker and want to run it on host, not in the container. sh) the init. Sep 8, 2019 · container_name: app command: /bin/sh -c "entrypoint. The most popular usage of the “docker exec” command is to launch a Bash terminal within a container. So I have in my docker build folder: Dockerfile index. /run_tests. d/ folder to set up the database with any custom parameters. Note that this also fixes things like wildcards (*) which otherwise do not work properly with docker exec. Sep 7, 2016 · The problem is that docker exec -it XXX bash command does not work with swarm mode. sh Script OUTSIDE from this docker container, because i want access to all of the moduls which are installed on ubuntu. Jan 1, 2016 · Considering your script (bootstrap. txt" to confirm it works as expected. I would Apr 19, 2022 · CMD ["sh", "/entrypoint. docker build -t script-demo . Confusing about Mar 17, 2021 · even if the influxdb docker image supports bash, you should prefer writing sh scripts for alpine. i've also tried docker run -d img chmod +x . The problem is that you're launching your docker with -t -i, and what you want is a background execution and check it interactively. Step 4: Now let’s create a container named demo using script-demo image. " With modern versions of docker, you may also explicitly control the platform docker uses. docker exec command can be used to execute a SHELL script inside a docker container after when it is copied to a location inside the container. elf, for instance). log EOF Mar 27, 2019 · FROM nginx ADD --chmod=777 HealthCheckTest. Once inside, you can do whatever you need. sh The run_netcat_webserver. The docker exec command inherits the environment variables that are set at the time the container is created. sh file which is on my Desktop in my local machine via Docker commands. docker-swarm; I wrote script to exec command in docker swarm by service name Nov 7, 2015 · I have a bash script that is supposed to execute other bash scripts using "docker exec" which are installed in different docker containers. /test/testing. sh seems to be responsible for running the sh scripts based on the arguments passed to it. docker run --name demo -d script-demo. sh"] BTW, as @user2915097 said, be careful that Alpine doesn't have Bash by default in case of your script using it in the shebang. In the Dockerfile the ENTRYPOINT has to be JSON-array syntax for it to be able to see the CMD arguments, and the script itself needs to actually run the CMD, typically with a line like exec "$@". 11. /entrypoint. sh). sh: POSIX shell script, ASCII text executable. sh which runs the third party program with the correct options. My initial attempt was this - Create run. docker run --name containername mongo Interact with the database through the bash shell client. So use an absolute path to the script you want to execute: CMD ["/sayhello. sh: not found /home/tmp # What is the problem? Script compile. sh" expose: - "5000" This results in the container not starting up, and from the log I get the following: /bin/sh: 1: entrypoint. From the bash man pa Aug 23, 2015 · Learn how to execute a shell script on your host machine from a Node. docker exec command doesn't return after completing execution. Dec 9, 2022 · Hey Folks I have a NodeRED Container and dealing with OCR. Oct 28, 2014 · In the documentation it instructs you to insert a bash script inside of the /docker-entrypoint-initdb. txt | bash Apr 27, 2017 · docker exec -it d886e775dfad sh -c "mongo --eval 'rs. Oct 29, 2015 · For anyone else who stumbles across this and wants a different way to specify multiple commands in order to execute a more complex script: cat <<EOF | docker exec --interactive boring_hawking sh cd /var/log tar -cv . script. A command like this currently works: sudo docker exec -it container touch test. You can then visit localhost:80 and run docker exec CONTAINER bash -c "cat /home/foo. Log says jdbcsetup. By default docker-compose exec allocates a TTY. The ‘docker exec’ command allows you to run a command in a running Docker container. 6. sh "This reads the local host script and runs it inside the container. You can do this with other things (like . psfha irqhxbik iiak iekwl wdnmrwb uzokdn jnp juex quubniiu yje