Add H2 database support

[TJM]

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: 5.5.2
• Ruby: ruby 2.4.3p205 (2017-12-14 revision 61247) [x86_64-linux]
• Distribution: CentOS 7.5
• Module version: 3.4.1

How to reproduce (e.g Puppet code you use)

include jira
include jira::facts

jira::version: 7.10.2
jira::javahome: /usr/java/latest
jira::jvm_xms: 384m
jira::db: h2

What are you seeing

It doesn't accept h2.

  Enum['postgresql','mysql','sqlserver','oracle'] $db               = 'postgresql',

What behaviour did you expect instead

I expected the "default" (built-in) database to work, for vagrant testing.

Output log

Any additional information you'd like to impart

Here is the dbconfig.xml from a test deployment with H2: (obviously the "url" appears to have a filename /apps/jira-shared/database/h2db )

<?xml version="1.0" encoding="UTF-8"?>

<jira-database-config>
  <name>defaultDS</name>
  <delegator-name>default</delegator-name>
  <database-type>h2</database-type>
  <schema-name>PUBLIC</schema-name>
  <jdbc-datasource>
    <url>jdbc:h2:file:/apps/jira-shared/database/h2db</url>
    <driver-class>org.h2.Driver</driver-class>
    <username>sa</username>
    <password></password>
    <pool-min-size>20</pool-min-size>
    <pool-max-size>20</pool-max-size>
    <pool-max-wait>30000</pool-max-wait>
    <min-evictable-idle-time-millis>4000</min-evictable-idle-time-millis>
    <time-between-eviction-runs-millis>5000</time-between-eviction-runs-millis>
    <pool-max-idle>20</pool-max-idle>
    <pool-remove-abandoned>true</pool-remove-abandoned>
    <pool-remove-abandoned-timeout>300</pool-remove-abandoned-timeout>
  </jdbc-datasource>
</jira-database-config>