pallet.clj

Infrastructure Project File

http://hugoduncan.github.com/pallet-prj-cw-2013

The Infrastructure You Need

From day one.

One source, many clouds, virtualisation environments.

One source, many deployment environments.

Infrastructure Project File

 README.md
 pallet.clj
 project.clj
 src
 target
 test

Easy to start

In the project.clj file:

:plugins
  [[com.palletops/pallet-lein "0.6.0-beta.7"]]

Create a pallet.clj file:

(defproject myproject
  :phases
   {:configure
      (plan-fn (package "postgresql-9.1"))})

$ lein pallet up

Now on ec2…

lein pallet add-service ec2 aws-ec2 xxxx xxxx

lein pallet --service ec2 up

As your infrastructure evolves

Split out code into functions

Split out code into re-usable modules

Modules are code artifacts

Testing

(defproject myproject
  :providers
    {:vmfest
      {:variants
        [{:node-spec {:image {:os-family :ubuntu}}
          :selectors #{:default :ubuntu}
         ...]}
  :groups [...])

lein pallet up --selectors ubuntu

lein pallet up --groups db

lein pallet up --phases configure,test

@palletops

Hugo Duncan / @hugoduncan

Toni Batchelli / @tbatchelli

Pallet

(require '[my.ns :refer [group1 group2]])
(defproject myproject
  :groups [group1 group])

pallet/src is on the classpath

Group specs

(def group1
  (group-spec "group1"
    :phases
     {:configure
      (plan-fn
        (remote-file "f" :content "hello"))}
    :roles #{:db}))

Multiple nodes

(def group1 (group-spec...))
(def group1 (group-spec...))
(defproject myproject
  :groups [group1 group])

lein pallet up --roles db

Will start/stop a node for each group