Run script before every RUN in Dockerfile?
I have a bit of a weird situation where I need to source the output of a script to set up some environment variables (which are only known at build time) before several RUN steps in my Dockerfile. I know…
I have a bit of a weird situation where I need to source the output of a script to set up some environment variables (which are only known at build time) before several RUN steps in my Dockerfile. I know…
I am performing an SQL query in bash like this: updated_records="select class, subject, teacher from main_a where date(updated_at) = '2024-03-07';" after running the query I am getting the results like this class | subject | teacher -----------+-----------+--------- A123 | maths…
I want to stop all containers that have dev1102in their name. There are several containers but I never know how many. So I run docker ps |grep -o 'dev1102_[A-Za-z_]*' which lists me all containers I need. Output looks like this…
I have a shell function to help me scp files to and from servers. Both servers are running bash on Ubuntu 22.04. Let's call the server comp2 and pretend its IP address for is 192.168.1.2 On my server in the…
my userapi if __name__ == "__main__": if len(sys.argv) >= 2: try: app_port = int(sys.argv[1]) except ValueError as ve: app_port = 5558 app.run(debug=True, host='0.0.0.0', port=app_port) else: raise ValueError('No starting port for the application') my startdocker.sh file #!/bin/bash docker container stop userapi_cnt_ad…
I am trying to migrate my Docker image which uses library/wordpress:php8.2-apache as base image to library/wordpress:php8.3-fpm-alpine and nginx:stable-alpine as base images. Here is my Dockerfile # Stage 1: Build the WordPress application FROM library/wordpress:php8.3-fpm-alpine AS build # Install wp-cli RUN…
I have a text file file.txt with the content: lord blue bird The sky reptile lorwood wood I'm trying to print the lines between "lord" and "reptile" using command sed and Basic Regular Expression as: $ sed -n '/^lor/,/^rep/p' file.txt…
I am implementing a JAR runner script in a Docker container. I pick up all the JAR files in a specific directory (in a Docker volume) and run all of them after each other as a background process. If the…
I'm building a release pipeline in Azure Devops. In one of the steps I'm using an inline bash script to retrieve the value of a secret previously retrieved by a KeyVault step. This is the script: #!/bin/bash # Get the…
In a bash shell, I want to convert an array variable $a into a string of tab separated values. I found a very complete answer by F.Hauri, using IFS, but then I could not make it work in a script.…