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@veggiemonk
veggiemonk / CKAD.md
Last active March 20, 2026 08:21
CKAD exam preparation
@vivekkr12
vivekkr12 / BouncyCastleCertificateGenerator.java
Last active August 24, 2025 01:55
Generate root X509Certificate, Sign a Certificate from the root certificate by generating a CSR (Certificate Signing Request) and save the certificates to a keystore using BouncyCastle 1.5x
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x509.BasicConstraints;
import org.bouncycastle.asn1.x509.Extension;
import org.bouncycastle.asn1.x509.GeneralName;
import org.bouncycastle.asn1.x509.KeyUsage;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.cert.X509v3CertificateBuilder;
import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter;
@lmmendes
lmmendes / Rancher.md
Created December 9, 2016 13:25
Running Rancher locally (with two hosts) using MacOS Docker and VirtualBox

Rancher

Rancher is an open source project that provides a complete platform for operating Docker in production. It provides infrastructure services such as multi-host networking, global and local load balancing, and volume snapshots.

This documentation describes how to run Rancher localy for development and evaluation propuses.

I'm using Docker for OSX (native) but even for this to work you will need to install VirtualBox.

Launching Management Rancher Server

@cristovaov
cristovaov / zero-hero-workshop.md
Created August 22, 2016 17:16
https://www.meetup.com/Software-Circus/events/233208894/
@bastman
bastman / docker-cleanup-resources.md
Created March 31, 2016 05:55
docker cleanup guide: containers, images, volumes, networks

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

@johnbuhay
johnbuhay / setup-users.groovy
Created January 21, 2016 01:15
jenkins init.groovy.d script for configuring users
import jenkins.*
import hudson.*
import com.cloudbees.plugins.credentials.*
import com.cloudbees.plugins.credentials.common.*
import com.cloudbees.plugins.credentials.domains.*
import com.cloudbees.jenkins.plugins.sshcredentials.impl.*
import hudson.plugins.sshslaves.*;
import hudson.model.*
import jenkins.model.*
import hudson.security.*
@lemiorhan
lemiorhan / ReleaseViaJGitFlow.md
Last active March 27, 2026 06:39
How to make a release with Git and Maven via JGitFlow

How to make a release with Git and Maven via JGitFlow

Imagine that you are versioning your sourcecode in git and building your code via maven. You need to make releases before deploying to production regularly. What should be the strategy we need to follow for releasing?

I've used maven-release-plugin for years to make releases. It worked perfectly with maven and svn, but we started to face problems when we migrated our code to git and to make releases on git.

After checking the literature, we decided to use JGit-Flow which is a maven plugin based on and is a replacement for the maven-release-plugin enabling support for git-flow style releases via maven.

I do not want to explain the details much because there are many great posts explaining all.

@choldrim
choldrim / jenkins-git-backup.sh
Last active January 31, 2024 13:50 — forked from abayer/jenkins-git-backup.sh
Example of a script for backing up Jenkins config in git.
#!/bin/bash
# Copies certain kinds of known files and directories from a given Jenkins master directory
# into a git repo, removing any old ones, adds 'em, commits 'em, pushes 'em.
set -ex
if [ $# -ne 3 ]; then
echo usage: $0 jenkins_home git_repos_url git_repos_name
exit 1
fi
@sirkkalap
sirkkalap / Install-Docker-on-Linux-Mint.sh
Last active December 8, 2022 18:38
Install Docker on Linux Mint
##########################################
# To run:
# curl -sSL https://gist.githubusercontent.com/sirkkalap/e87cd580a47b180a7d32/raw/d9c9ebae4f5cf64eed4676e8aedac265b5a51bfa/Install-Docker-on-Linux-Mint.sh | bash -x
##########################################
# Check that HTTPS transport is available to APT
if [ ! -e /usr/lib/apt/methods/https ]; then
sudo apt-get update
sudo apt-get install -y apt-transport-https
fi
@abayer
abayer / jenkins-git-backup.sh
Last active June 7, 2025 03:08
Example of a script for backing up Jenkins config in git.
#!/bin/bash
#
# Copies certain kinds of known files and directories from a given Jenkins master directory
# into a git repo, removing any old ones, adds 'em, commits 'em, pushes 'em.
#
set -ex
if [ $# -ne 2 ]; then
echo usage: $0 root_dir jenkins_master