[BROOKLYN-503] Shell.env should work with SaltEntity

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.10.0
• Labels: env salted

Environment

Ubuntu 14.04

• Assignee: Unassigned
• Reporter: Andres Garcia Garcia
• Created: 15/May/17 07:48
• Updated: 30/Aug/17 13:34

Description

I am using Brooklyn to deploy servers configured with Salt.

I am trying to deploy one VM with a web server and another with MySQL, and link them together using env variables in the salt pillars.

Based on the sample templates, this is my yaml.

name: Salt LAMP deployment (Brooklyn Example)

services:
- id: mysql
  name: mysql
  type: org.apache.brooklyn.entity.cm.salt.SaltEntity
  formulas:
  - https://github.com/saltstack-formulas/mysql-formula/archive/master.tar.gz
  start_states:
  - mysql
  pillars:
  - mysql
  pillarUrls:
  - ftp://xxx/wordpress-example.tar
- id: wordpress
  name: wordpress
  type: org.apache.brooklyn.entity.cm.salt.SaltEntity
  formulas:
  - https://github.com/saltstack-formulas/php-formula/archive/master.tar.gz
  - https://github.com/saltstack-formulas/wordpress-formula/archive/master.tar.gz
  - https://github.com/saltstack-formulas/apache-formula/archive/master.tar.gz
  - https://github.com/saltstack-formulas/mysql-formula/archive/master.tar.gz
  start_states:
  - mysql.client
  - php.ng
  - php.ng.mysql
  - wordpress
  - apache
  - apache.config
  - apache.vhosts.standard
  pillars:
  - php
  - wordpress
  - apache
  - mysql
  pillarUrls:
  - ftp://xxx/filezilla.tar
  brooklyn.config:
    shell.env:
      MYSQL_URL: $brooklyn:entity("mysql").attributeWhenReady("host.name")

location:
  jclouds:aws-ec2:
    identity:     xxx
    credential:   xxx
    region:       us-west-2
    inboundPorts:
      - 22
      - 80
      - 3306
    hardwareId:   t2.small

And then, inside the pillars, I configure them as follows

wordpress:
    sites:
            username: xxx
            password: xxx
            database: xxx
            dbhost: {{ salt['environ.get']('MYSQL_URL') }}

However, the MYSQL_URL env variable is resolved to none.

I got word from svet in the IRC channel that SaltEntity doesn't support shell.env. I think it would be really helpful to make this option available in order to configure multinode deployments with Salt.

Issue Links

• links to: GitHub Pull Request #123