Feb 132017

Found a good post on how to use the  rescue mode in Hetzner to setup a Logical Volume that spans multiple drives. This plus vsftpd can help setup Terabytes of space for storage as backup. In any case you should not use Hetzner for anything closely resembling a legit online service, website etc. It is only popular as Seedbox for a reason as they are quick to lock your server out.

Speaking of seedboxes, if you want to setup one here is a good script https://github.com/arakasi72/rtinst It can optionally install Webmin.

For file storage, search and download etc I have not yet found a tool. It’s mostly find and scp

If you feel adventurous I found a tricked out Seedbox setup script here https://github.com/dannyti/seedbox-from-scratch. Does everything and makes coffee.

With Bacula running on the local server I can send snapshots over to Hetzner albeit at a slow-as-snail speed. 30 Euros per month for 5.5TB of space is not too bad. I picked up a system from the their auctions and its quite alright but one shouldn’t expect performance or longevity from such systems. You get what you pay for essentially.


Feb 062017

Start by setting up a container/VM with ubuntu 12 LTS

sudo apt-get install software-properties-common python-software-properties

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java8-set-default
echo JAVA_HOME="/usr/lib/jvm/java-8-oracle"  | sudo tee /etc/environment
source /etc/environment
wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -
echo deb http://pkg.jenkins-ci.org/debian binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list
sudo apt-get update
sudo apt-get install jenkins
sudo apt-get install git
sudo apt-get install autoconf bison build-essential libssl-dev libyaml-dev libreadline6 libreadline6-dev zlib1g zlib1g-dev imagemagick libmagickcore-dev libmagickwand-dev sqlite3 libsqlite3-dev libxml2-dev unzip
sudo apt-get install redis-server postgresql-9.1 libpq-dev postgresql-contrib
wget -qO- https://deb.nodesource.com/setup_6.x | sudo bash -
sudo apt-get install -y nodejs
npm install -g phantomjs-prebuilt
sudo su - jenkins 

This step with rbenv maybe unnecessary since the jenkins plugins does the same thing

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
exec $SHELL

git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

#install ruby version if not using rbenv plugin
rbenv install 2.3.1
#Edit this to match github
git config --global user.name "John Doe"
git config --global user.email johndoe@example.com

ssh-keygen and upload to github as required.

On the Jenkins UI install plugins

  • git
  • github
  • rbenv
  • Rake
  • envInjector plugin to populate .envrc equivalent

follow these guides here for project setup

http://www.jianshu.com/p/0c9cbbd6d787 -RVM specific

http://www.webascender.com/Blog/ID/522/Setting-up-Jenkins-for-GitHub-Rails-Rspec RBENV

Postgres related

Configure postgres pg_hba.conf to match your database.yml. Contrary to popular belief you dont need to copy any database config

Using 9.5+ version

sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'

wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | sudo apt-key add -

sudo apt-get update 

sudo apt-get install postgresql postgresql-contrib

Despite all the guides, much of Rails on Jenkins is trial and error. Setting up a new project is relatively easy as per the linked guides but YMMV.

In addition I have had to edit code to make it Jenkins friendly and enabling JUnit reports in rails via Gems is very useful.

Note that installing a single instance of postgres on the Jenkins master is alright for small local developments but not useful for large parallel builds as you are essentially on one DB. I hope this is good enough for anyone to get started and help improve upon the setup.

Possible Further improvements:
Use containers for postgres, build vm
Use EC2 or Azure Vm plugins
use Jenkins Pipeline