eshack94

Jenkins Pipeline Plugin Cheat Sheet

My collection of useful hints and snippets for the Jenkins Pipeline Plugin

Testing Jenkins Pipelines

• Check this repository

eshack94

// Check if a slave has < 10 GB of free space, wipe out workspaces if it does

import hudson.model.*;
import hudson.util.*;
import jenkins.model.*;
import hudson.FilePath.FileCallable;
import hudson.slaves.OfflineCause;
import hudson.node_monitors.*;

for (node in Jenkins.instance.nodes) {

eshack94

Base steps

# Enable multiverse repository
sudo sed -i "/^# deb.*multiverse/ s/^# //" /etc/apt/sources.list

sudo apt-get update
sudo apt-get upgrade -y

export LANGUAGE=en\_US.UTF-8

eshack94

pretty_csv/pretty_tsv

These are some simple bash functions and scripts for making CSV/TSV files prettier on the command line

see http://stefaanlippens.net/pretty-csv.html for more information.

eshack94

#
# Copyright (C) 2013 Vinay Sajip. New BSD License.
#
import os
import os.path
from subprocess import Popen, PIPE
import sys
from threading import Thread
from urllib.parse import urlparse
from urllib.request import urlretrieve

eshack94

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04

eshack94

#!/bin/bash
# This script should be located on each Jenkins slave, and the jenkins user should have permission to run it with sudo

# Attempts to cleanly stop and remove all containers, volumes and images.
docker ps -q | xargs --no-run-if-empty docker stop
docker ps -q -a | xargs --no-run-if-empty docker rm --force --volumes
docker volume ls -q | xargs --no-run-if-empty docker volume rm
docker images -a -q | xargs --no-run-if-empty docker rmi -f

# Stops the docker service, unmounts all docker-related mounts, removes the entire docker directory, and starts docker again.

eshack94

node("${params.BUILD_AGENT}") {
    
    stage('Dangling Containers') {
      sh 'docker ps -q -f status=exited | xargs --no-run-if-empty docker rm'
    }

    stage('Dangling Images') {
      sh 'docker images -q -f dangling=true | xargs --no-run-if-empty docker rmi'
    }
    

eshack94

Encoding high-quality HEVC content with FFmpeg - based NVENC encoder on supported hardware:

If you've built ffmpeg as instructed here on Linux and the ffmpeg binary is in your path, you can do fast HEVC encodes as shown below, using NVIDIA's NPP's libraries to vastly speed up the process.

Now, to do a simple NVENC encode in 1080p, (that will even work for Maxwell Gen 2 (GM200x) series), start with:

ffmpeg  -i <inputfile>  \
-filter:v scale_npp=w=1920:h=1080:format=nv12:interp_algo=lanczos \

-c:v hevc_nvenc -profile main -preset slow -rc vbr_hq \

eshack94

Encoder hevc_nvenc [NVIDIA NVENC hevc encoder]:
    General capabilities: delay 
    Threading capabilities: none
    Supported pixel formats: yuv420p nv12 p010le yuv444p yuv444p16le bgr0 rgb0 cuda d3d11
hevc_nvenc AVOptions:
  -preset            <int>        E..V.... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V.... 
     slow                         E..V.... hq 2 passes
     medium                       E..V.... hq 1 pass
     fast                         E..V.... hp 1 pass