Setup Custom Graylog Mappings

SetupCustomGraylogMappings.md

Fix problem graylog failed to parse field level of type long

cat << EOF > graylog-custom-mapping.json
{
  "template": "graylog_*",
  "mappings" : {
    "properties" : {
      "level" : {
        "type" : "keyword"
      }
    }
  }
}
EOF

curl -X PUT -d @graylog-custom-mapping.json 'http://localhost:9200/_template/graylog-custom-mapping?pretty' -H 'Content-Type: application/json'

https://community.graylog.org/t/custom-mapping-not-applied-to-indices/12854