PaaS in under 10 minutes (or, “Let’s see if building a PaaS and deploying an app is faster than formatting a disk”).
We recently had some 4TB (RAID-0) external drives shipped to us to fill with BHL(biodiversitylibrary.org) content, we needed to format them as ext4 and then fill them up with books. Formatting the disks took a while, so I decided that for the next disk, I would see if I could setup a PaaS using Dokku, a cool little set of bash scripts that do some proxy, building & assorted magic on top of docker. And then deploy an app to it. Here’s how it panned out.
start the ext4 format:
[16:10:41] [root@clustr-03 /root]# date;mkfs.ext4 /dev/sdz1 Thu Jun 13 16:12:35 EDT 2013 Writing inode tables: 1/29809
prep the server with dokku
$ wget -qO- https://raw.github.com/progrium/dokku/master/bootstrap.sh | sudo bash
We’ll let that bake for a little while
~/dev $ date;mkdir awyeah Thu Jun 13 16:12:55 EDT 2013 ~/dev $ cd awyeah/ ~/dev/awyeah $ bundle init ~/dev/awyeah $ touch web.rb ~/dev/awyeah $ touch config.ru ~/dev/awyeah $ vim Gemfile
1 2 3
~/dev/awyeah $ vim web.rb
1 2 3 4 5
~/dev/awyeah $ date;vim config.ru Thu Jun 13 16:14:05 EDT 2013
~/dev/awyeah $ git init . Initialized empty Git repository in /Users/agoddard/dev/awyeah/.git/ ~/dev/awyeah (master) $ git add . ~/dev/awyeah (master) $ git ci -am "awwyeah initial commit" [master (root-commit) ade6ea2] awwyeah initial commit 3 files changed, 10 insertions(+) create mode 100644 Gemfile create mode 100644 config.ru create mode 100644 web.rb ~/dev/awyeah (master) $ git remote add deploy email@example.com:awwyeah ~/dev/awyeah (master) $ bundle Fetching gem metadata from https://rubygems.org/........... Fetching gem metadata from https://rubygems.org/.. Resolving dependencies... Installing rack (1.5.2) Installing rack-protection (1.5.0) Installing tilt (1.4.1) Installing sinatra (1.4.3) Using bundler (1.3.5) Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed. ~/dev/awyeah (master) $ git ci -am "added Gemfile.lock" [master 787cdaa] added Gemfile.lock 1 file changed, 17 insertions(+) create mode 100644 Gemfile.lock
back to server
[...] nginx-reloader start/running, process 26946 Be sure to upload a public key for your user: cat ~/.ssh/id_rsa.pub | ssh firstname.lastname@example.org "gitreceive upload-key ag"
looks good, let’s finish it off
cat ~/.ssh/id_rsa.pub | ssh email@example.com "gitreceive upload-key ag"
~/dev/awyeah (master) $ git push deploy master Counting objects: 4, done. Delta compression using up to 8 threads. Compressing objects: 100% (3/3), done. Writing objects: 100% (3/3), 500 bytes | 0 bytes/s, done. Total 3 (delta 0), reused 0 (delta 0) remote: -----> Building awwyeah ... remote: Ruby/Rack app detected remote: -----> Using Ruby version: ruby-1.9.3 remote: -----> Installing dependencies using Bundler version 1.3.2 remote: Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin --deployment remote: Fetching gem metadata from https://rubygems.org/.......... remote: Fetching gem metadata from https://rubygems.org/.. remote: Installing rack (1.5.2) remote: Installing rack-protection (1.5.0) remote: Installing tilt (1.4.1) remote: Installing sinatra (1.4.3) remote: Using bundler (1.3.2) remote: Your bundle is complete! It was installed into ./vendor/bundle remote: Cleaning up the bundler cache. remote: -----> Discovering process types remote: Default process types for Ruby/Rack -> rake, console, web remote: -----> Build complete! remote: -----> Deploying awwyeah ... remote: -----> Application deployed: remote: http://awwyeah.deploy.eol.org remote: To firstname.lastname@example.org:awwyeah ade6ea2..787cdaa master -> master
and let’s see if the site is online
~/dev/awyeah (master) $ curl http://awyeah.deploy.eol.org oh hell yeah
~/dev/awyeah (master) $ date Thu Jun 13 16:18:59 EDT 2013
let’s check on that formatting:
Writing inode tables: 4289/29809
plenty of time (also, ext4/4TB is kinda slow…)