johnrc

#!/bin/bash

table=$1
filename=$2

cqlsh -e "COPY $table TO './$filename' WITH HEADER = true;"

johnrc

func ExamplePrintToPDF() {
	ctx, cancel := chromedp.NewContext(context.Background())
	defer cancel()

	var buf []byte
	if err := chromedp.Run(ctx,
		chromedp.Navigate(`https://godoc.org/github.com/chromedp/chromedp`),
		chromedp.ActionFunc(func(ctx context.Context) error {
			var err error
			buf, _, err = page.PrintToPDF().

johnrc

#!/bin/bash -ex

REPO_NAME=${PWD##*/}
TARGET_ORG="jenkinsci"

#TODO: fetch from GitHib API
#TODO: if no, process parameters correctly
GITHUB_PR_NUMBER=${1}
FROM_USER=${2}
BRANCH=${3}

johnrc

API	Status Codes
[Twitter][tw]	200, 304, 400, 401, 403, 404, 406, 410, 420, 422, 429, 500, 502, 503, 504
[Stripe][stripe]	200, 400, 401, 402, 404, 429, 500, 502, 503, 504
[Github][gh]	200, 400, 422, 301, 302, 304, 307, 401, 403
[Pagerduty][pd]	200, 201, 204, 400, 401, 403, 404, 408, 500
[NewRelic Plugins][nr]	200, 400, 403, 404, 405, 413, 500, 502, 503, 503
[Etsy][etsy]	200, 201, 400, 403, 404, 500, 503
[Dropbox][db]	200, 400, 401, 403, 404, 405, 429, 503, 507

johnrc

Below is a list of helpful commands to run a successful migration of Subversion to Git.

svn log --quiet https://svn-server.example.com/repos/my_repo | grep -E "r[0-9]+ \| .+ \|" | cut -d'|' -f2 | sed 's/ //g' | sort | uniq > svnauthors.txt
# convert the `svnauthors.txt` to proper format (name, email) in `authors.txt`
git svn clone --prefix="" --authors-file="authors.txt" -s https://svn-server.example.com/repos/my_repo
java -Dfile.encoding=utf-8 -jar ~/svn-migration-scripts.jar clean-git --force
git remote add origin ssh://[email protected]/my_username/my_repo.git
git push --all
git push --tags

johnrc

Selenium Grid on Docker

Setup Containers

docker run -d -P --name selenium-hub selenium/hub
docker run -d --link selenium-hub:hub selenium/node-chrome
docker exec -it ad6211909835 bash

johnrc

#!/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

johnrc

#!/bin/bash
#
# Starts up a MongoDB replica set
#
# There is a lot of documentation about replica sets:
#
#    http://docs.mongodb.org/manual/reference/replica-configuration/
#    http://docs.mongodb.org/manual/administration/replica-sets/
#
# To read data from a SECONDARY, when in the client, use:

johnrc

[Unit]
Description=Sonatype Nexus
After=centrifydc.service
Requires=centrifydc.service

[Service]
User=user
Group=group
Type=forking
PIDFile=/path/to/nexus-2.11.4-01-bundle/nexus-2.11.4-01/bin/jsw/linux-x86-64/nexus.pid

johnrc

#!/bin/sh

curl -O http://repo.continuum.io/archive/Anaconda3-4.0.0-Linux-x86_64.sh
chmod u+x Anaconda3-4.0.0-Linux-x86_64.sh
./Anaconda3-4.0.0-Linux-x86_64.sh -b -p /opt/anaconda3
export PATH=/opt/anaconda3/bin:$PATH
curl --silent --location https://rpm.nodesource.com/setup_4.x | bash -
yum install nodejs -y
npm install -g configurable-http-proxy
pip install jupyterhub