The document discusses various tools and techniques for deploying Elixir applications to production including exrm for building releases, fpm for packaging, publishing packages to an internal apt repository, and using Puppet to install packages, configure files, and ensure services are running. It thanks several contributors for their work on conform, exrm, fpm, and the internal apt repository.

1. Elixir |> Production
How Do?
Jeff Weiss, Puppet Labs, @jeffweiss

2. application
|> conform
|> exrm
|> fpm
|> publish(:apt_repo)
|> puppet_module( fn {package, file, service} ->
install(package, :latest)
Node.self()
|> server_specific_config(:hiera)
|> write_config(file)
ensure_running(service)
end)

3. conform
Generates key=value config file from *.exs
Can include settings of dependencies
Thank you, Paul Schoenfelder

4. exrm
Consistent CI location to get appup
version number:
git describe | cut -d - -f1,3 -
Mostly LSB-compliant init script
Thank you, Paul Schoenfelder

5. fpm
symlink
/etc/app.conf -> /opt/app/releases/#{version}/app.conf
--deb-init #{exrm script}
--config-files #{conform config}
Thank you, Jordan Sissel

6. publish(:apt_repo)
Publish .deb to pre-configured, internal apt repo
Freight?
¯_(ツ)_/¯
Thank you, Puppet Labs Operations

7. puppet_module
package { application:
ensure => latest
}
file { ‘/etc/app.conf’:
ensure => present,
source => template(‘module/app.conf.erb’),
links => follow,
require => Package[application]
}
service { application:
ensure => running,
subscribe => File[‘/etc/app.conf’]
}

8. Thank you!
💜