Tim's Blog

I spent the weekend creating a site that holds daily mock presidential elections to inspire us to vote. Record voter turnout will change things for the better. Please use it, share it, get your friends to share it, get Cher to share it.

www.ifweallvote.com

I just wrote a library to help developers write DOM tests; specifically DOM assertions.  It allows you to express expected HTML (DOM structure) using React’s JSX.  All the details are in the readme.  The library is called html-normalizer and is available on npm and github. Here’s the link.  https://github.com/TimothyRHuertas/normalizer

Happy testing

There are several articles on using elastic beanstalk hooks to create and manage (start|stop|restart) background services (this example uses up-start) that govern rake tasks. This is not one of them; rather it is an amendment to those posts intended to provide you with an updated example. I recently upgraded my Elastic Beanstalk application to use Ruby 2.1 (Puma) and my services stopped working. I made some minor changes to get stuff working again.

Disclaimer: There are better ways to accomplish this (see rails sidekiq), but you may still find this useful. Consider it the “copy/paste path of least resistance” for upgrading older projects.

commands:
create_post_dir:
command: “mkdir /opt/elasticbeanstalk/hooks/appdeploy/post”
ignoreErrors: true
create_pid_dir:
command: “mkdir /var/app/current/tmp/pids”
ignoreErrors: true
files:
“/etc/init/resque.conf”:
mode: “000755”
content: |
description “Starts a Resque worker. For example: start resque.”

start on runlevel [2345]
stop on runlevel [!2345]

respawn
respawn limit 5 20

script
exec /bin/bash <<“EOF”
EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)
EB_SUPPORT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k support_dir)

. $EB_SUPPORT_DIR/envvars
. $EB_SCRIPT_DIR/use-app-ruby.sh
EB_APP_USER=$(/opt/elasticbeanstalk/bin/get-config container -k app_user)
EB_APP_DEPLOY_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_deploy_dir)

PIDFILE=$EB_APP_DEPLOY_DIR/tmp/pids/resque.pid
LOGFILE=$EB_APP_DEPLOY_DIR/log/resque_workers.log
cd $EB_APP_DEPLOY_DIR
exec su -s /bin/bash -c “bundle exec rake workers:start >> $LOGFILE 2>&1” webapp
EOF
end script

post-stop script
exec /bin/bash <<“EOF”
EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)
EB_SUPPORT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k support_dir)

. $EB_SUPPORT_DIR/envvars
. $EB_SCRIPT_DIR/use-app-ruby.sh
EB_APP_USER=$(/opt/elasticbeanstalk/bin/get-config container -k app_user)
EB_APP_DEPLOY_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_deploy_dir)

PIDFILE=$EB_APP_DEPLOY_DIR/tmp/pids/resque.pid
LOGFILE=$EB_APP_DEPLOY_DIR/log/resque_workers.log
cd $EB_APP_DEPLOY_DIR
exec su -s /bin/bash -c “bundle exec rake workers:killall >> $LOGFILE 2>&1” webapp
EOF
end script
“/opt/elasticbeanstalk/hooks/appdeploy/post/999_start_resque_job.sh”:
mode: “000755”
content: |
#!/usr/bin/env bash
. /opt/elasticbeanstalk/support/envvars
set -ex

initctl restart resque || initctl start resque
echo ‘resque restarted’