Load Elasticsearch documents

[gcornut]

• Create ElasticSearch mappings and index templates
• Prepare JSON bulk files
• Index switching
  • Bulk index into new timestamped index {source}_{documentType}-d{timestamp}
  • Remove old timestamped index
  • Add new index to index alias {source}_{documentType}

Example:
Indexing VIB studies with timestamp "1522832654"
=> new index vib_study-d1522832654
=> remove vib study indices before timestamp
=> add index vib_study-d1522832654 to alias vib_study