[PIO-114] Elasticsearch 5.x StorageClient basic HTTP authentication

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.0-incubating
• Fix Version/s: 0.12.0-incubating
• Component/s: Core
• Target Version/s: 0.12.0-incubating
• External issue URL: https://github.com/apache/incubator-predictionio/pull/421
• Assignee: Mars Hall
• Reporter: Mars Hall
• Created: 14/Aug/17 19:59
• Updated: 05/Dec/17 22:44
• Resolved: 29/Aug/17 18:42

Description

Add optional username-password configuration for the new Elasticsearch 5 client; in conf/pio-env.sh config:

# Optional basic HTTP auth
PIO_STORAGE_SOURCES_ELASTICSEARCH_USERNAME=my-name
PIO_STORAGE_SOURCES_ELASTICSEARCH_PASSWORD=my-secret

These credentials are sent in each Elasticsearch request as an HTTP Basic Authorization header.

Enables use of public-cloud, hosted Elasticsearch clusters, such as [Bonsai on Heroku](https://elements.heroku.com/addons/bonsai).