Skip to content

Instantly share code, notes, and snippets.

View krepkay's full-sized avatar

krepkay krepkay

1 follower · 5 following
View GitHub Profile
@alyleite
alyleite / wsl.md
Last active July 1, 2025 10:55
Failed to connect to bus: Host is down - WSL 2

» sudo systemctl daemon-reload

System has not been booted with systemd as init system (PID 1). Can't operate. Failed to connect to bus: Host is down

==============================================

Edit*

  1. Open /etc/wsl.conf with any editor:
@m-radzikowski
m-radzikowski / script-template.sh
Last active October 9, 2025 00:41
Minimal safe Bash script template - see the article with full description: https://betterdev.blog/minimal-safe-bash-script-template/
#!/usr/bin/env bash
set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT
script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)
usage() {
cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]
@sainnhe
sainnhe / gruvbox-material-alacritty.yml
Last active July 4, 2025 11:54
Gruvbox Material for Alacritty
# The definition of color schemes.
schemes:
gruvbox_material_hard_dark: &gruvbox_material_hard_dark
primary:
background: '0x1d2021'
foreground: '0xd4be98'
normal:
black: '0x32302f'
red: '0xea6962'
green: '0xa9b665'
@fernandoaleman
fernandoaleman / install-rabbitmq-centos-7.md
Last active December 12, 2024 12:38
Install RabbitMQ on CentOS 7

Install RabbitMQ on CentOS 7

sudo yum -y install epel-release
sudo yum -y update

Install Erlang

Download repository

@docwhat
docwhat / Jenkinsfile
Last active May 1, 2025 02:03
Example pipeline usage of the Jenkins Mask Passwords plugin
// Requires https://plugins.jenkins.io/mask-passwords to run
/**
* Runs code with secret environment variables and hides the values.
*
* @param varAndPasswordList - A list of Maps with a 'var' and 'password' key. Example: `[[var: 'TOKEN', password: 'sekret']]`
* @param Closure - The code to run in
* @return {void}
*/
def withSecretEnv(List<Map> varAndPasswordList, Closure closure) {
@perja12
perja12 / delete_artifacts.groovy
Created July 30, 2018 11:25
Delete artifacts from Jenkins with Groovy script.
// Delete old artifacts that fills up the disk on the master node.
// Run this from the Jenkins console (Manage Jenkins, Manage Nodes, master, Script Console)
def project = Jenkins.get().getItemByFullName('your-project-id')
def jobs = project.getAllJobs()
def total_size = 0
jobs.each{ job ->
def builds = job.getBuilds()
@leogallego
leogallego / ubuntu-cloud-virtualbox.sh
Last active March 22, 2025 20:10 — forked from smoser/ubuntu-cloud-virtualbox.sh
Ubuntu Cloud images with cloud-init and cloud-config for virtualbox
## Install necessary packages and latest virtualbox
wget -q -O - http://download.virtualbox.org/virtualbox/debian/oracle_vbox_2016.asc | sudo apt-key add -
sudo sh -c 'echo "deb [arch=amd64] http://download.virtualbox.org/virtualbox/debian bionic non-free contrib" >> /etc/apt/sources.list.d/virtualbox.org.list'
sudo apt update
sudo apt install virtualbox-5.2 qemu-utils genisoimage cloud-utils
## get kvm unloaded so virtualbox can load
## WARNING: not needed?
#sudo modprobe -r kvm_amd kvm_intel
#sudo service virtualbox stop
@lucasjellema
lucasjellema / docker-compose.yml
Created May 22, 2018 04:57
Docker Compose file for Apache Kafka, the Confluent Platform (4.1.0) - with Kafka Connect, Kafka Manager, Schema Registry and KSQL (1.0) - assuming a Docker Host accessible at 192.168.188.102
version: '2'
services:
zookeeper:
image: "confluentinc/cp-zookeeper:4.1.0"
hostname: zookeeper
ports:
- "2181:2181"
environment:
ZOOKEEPER_CLIENT_PORT: 2181
@0xjac
0xjac / private_fork.md
Last active November 2, 2025 13:27
Create a private fork of a public repository

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

  1. Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.) 
    

    2. 



git clone --bare [email protected]:usi-systems/easytrace.git



  


  




    


          
    

      

        
        

          

              @Faheetah
          

          

            
                Faheetah
                / Jenkinsfile.groovy
            
            

              Last active
              October 7, 2025 15:42
            

              
                Jenkinsfile idiosynchrasies with escaping and quotes
              
          

        

      

        

  

    
    


        



  


  

        

          
          node {
        

        

          
              echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
        

        

          
              echo 'No quotes, pipeline command in single quotes'
        

        

          
              sh 'echo $BUILD_NUMBER' // 1
        

        

          
              echo 'Double quotes are silently dropped'
        

        

          
              sh 'echo "$BUILD_NUMBER"' // 1
        

        

          
              echo 'Even escaped with a single backslash they are dropped'
        

        

          
              sh 'echo \"$BUILD_NUMBER\"' // 1
        

        

          
              echo 'Using two backslashes, the quotes are preserved'
        

        

          
              sh 'echo \\"$BUILD_NUMBER\\"' // "1"