Added content type to curl requests which is now required as described in https://www.elastic.co/blog/strict-content-type-checking-for-elasticsearch-rest-requests (#137)

Author: vetin4ri

jobs/elasticsearch/templates/bin/drain.erb

@@ -6,6 +6,7 @@ set -e
 # disable allocations before bringing down data nodes
 
 curl -s -X PUT localhost:9200/_all/_settings \
+  -H 'Content-Type: application/json' \
   -d '{"settings": {"index.unassigned.node_left.delayed_timeout": "<%= p("elasticsearch.recovery.delay_allocation_restart") %>"}}' \
   > /dev/null
 

jobs/elasticsearch/templates/bin/post-deploy.erb

@@ -4,10 +4,12 @@ set -e
 
 <% if p('elasticsearch.cloud.aws.bucket') != '' and p('elasticsearch.node.allow_master') and spec.bootstrap %>
 curl -X PUT -s localhost:9200/_snapshot/<%= p('elasticsearch.snapshots.repository') %> \
+  -H 'Content-Type: application/json' \
   -d '{"type": "s3", "settings": {"bucket": "<%= p('elasticsearch.cloud.aws.bucket') %>"}}'
 <% end %>
 
 <% if p('elasticsearch.path_repo') != '' and p('elasticsearch.node.allow_master') and spec.bootstrap %>
 curl -X PUT -s localhost:9200/_snapshot/<%= p('elasticsearch.snapshots.repository') %> \
+  -H 'Content-Type: application/json' \
   -d '{"type": "fs", "settings": {"location": "<%= p('elasticsearch.path_repo') %>/<%= p('elasticsearch.snapshots.repository') %>", "compress": true}}'
 <% end %>

jobs/elasticsearch/templates/bin/post-start.erb

@@ -48,6 +48,7 @@ rm ${out}
 
 <% if p("elasticsearch.node.allow_data") %>
 curl -X PUT -s localhost:9200/_all/_settings \
+  -H 'Content-Type: application/json' \
   -d '{"settings": {"index.unassigned.node_left.delayed_timeout": "<%= p("elasticsearch.recovery.delay_allocation") %>"}}'
 <% end %>