actionjack

Applying judo techniques to DevOps may initially sound unconventional, but it's a useful metaphor for understanding and improving DevOps practices. Judo, a martial art known for its principle of using an opponent's force against them rather than directly opposing it, can offer valuable insights into DevOps processes. Here are a few ways to apply judo principles to DevOps:

Leverage Existing Momentum (Seiryoku Zen'yō - Maximum Efficiency with Minimum Effort): In DevOps, this translates to utilizing existing tools and processes efficiently rather than reinventing the wheel. For instance, if certain automation tools are already in place and working well, build upon them instead of replacing them without a substantial reason.

Adapt and Overcome (Jū no Ri - Flexibility): Just like a judo practitioner adapts to their opponent's movements, in DevOps, it's crucial to be flexible and responsive to changing requirements and environments. This could mean adapting to new technologies, altering workflows to accommodate t

actionjack

# Source: https://gist.github.com/vfarcic/78c1d2a87baf31512b87a2254194b11c

###############################################################
# How To Create A Complete Internal Developer Platform (IDP)? #
# https://youtu.be/Rg98GoEHBd4                                #
###############################################################

# Additional Info:
# - DevOps MUST Build Internal Developer Platform (IDP): https://youtu.be/j5i00z3QXyU
# - How To Create A "Proper" CLI With Shell And Charm Gum: https://youtu.be/U8zCHA-9VLA

actionjack

0. SSH to server
1. Edit /opt/bitnami/apps/jenkins/jenkins_home/config.xml

2. set userSecurity to false: <userSecurity>false</userSecurity>

3. delete
<authorizationStrategy> and <securityRealm>

4. /etc/init.d/bitnami restart

actionjack

#!/usr/bin/env bash

# seems to work on any filesystem
# final size is (bs * seek) in bytes
# this creates a 4MB sparse file

dd if=/dev/zero of=/tmp/file bs=1 count=0 seek=4194304

# or 

actionjack

import os
import sys
import uuid
import boto3
import tweepy
from urllib.parse import unquote_plus

# Twitter authentication variables
consumer_key = os.environ.get('TWITTER_CONSUMER_KEY', 'ap-northeast-1')
consumer_secret = os.environ.get('TWITTER_CONSUMER_SECRET', 'ap-northeast-1')

actionjack

import requests
import logging
import httplib

# Debug logging
httplib.HTTPConnection.debuglevel = 1
logging.basicConfig()
logging.getLogger().setLevel(logging.DEBUG)
req_log = logging.getLogger('requests.packages.urllib3')
req_log.setLevel(logging.DEBUG)

actionjack

AWS_ROOT_CA_FILE=$HOME/aws.root.ca.bundle.pem
cp /dev/null $AWS_ROOT_CA_FILE

for ca in \
    https://www.amazontrust.com/repository/AmazonRootCA1.pem \
    https://www.amazontrust.com/repository/AmazonRootCA2.pem \
    https://www.amazontrust.com/repository/AmazonRootCA3.pem \
    https://www.amazontrust.com/repository/AmazonRootCA4.pem \
    https://www.symantec.com/content/en/us/enterprise/verisign/roots/VeriSign-Class%203-Public-Primary-Certification-Authority-G5.pem; do

actionjack

import java.util.ArrayList;
import hudson.model.*;

def q = Jenkins.instance.queue
for (queued in Jenkins.instance.queue.items) {
    q.cancel(queued.task)
}

for (job in Jenkins.instance.items) {
    stopJobs(job)

actionjack

How to generate and apply patches with git?

It sometimes happen you need change code on a machine from which you cannot push to the repo. You’re ready to copy/paste what diff outputs to your local working copy.

You think there must be a better way to proceed and you’re right. It’s a simple 2 steps process:

1. Generate the patch:

git diff > some-changes.patch

actionjack

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"