reindex_elastic.sh

#!/bin/sh
#
# reindex elastic search indizies
# 
# might destroy everything, don't use.

RES=$(curl -s 'localhost:9200/_cat/indices' |awk -F ' ' '{print $3}')
echo $RES

for r in $RES; do
  reindex_data="'{
    \"source\": {
      \"index\": \"${r}\"
    },
    \"dest\": {
      \"index\": \"${r}-reindex\"
    }
  }'"

  alias_data="'{
    \"actions\": [
      { \"add\": {
          \"index\": \"${r}-reindex\",
          \"alias\": \"${r}\"
        }
      },
      { \"remove_index\": {
          \"index\": \"${r}\"
        }
      }   
    ]
  }'"

  reindex_curl="curl -XPOST 'http://localhost:9200/_reindex?wait_for_completion' -H 'Content-Type: application/json' -d${reindex_data}"
  alias_curl="curl -XPOST 'http://localhost:9200/_aliases' -H 'Content-Type: application/json' -d${alias_data}"
  echo "\nreindex ${r}..."
  eval $reindex_curl || exit $?
  echo "\nalias ${r} <- ${r}-reindex..."
  eval $alias_curl || exit $?
done