es2postgres

ElasticSearch to PostgreSQL Loader.

Uses es2csv, xsv, GNU sed and psql client to periodically Extract, Transform and Load data from ES to PSQL.

• Extract: ElasticSearch is queried from the last ingestion point for new data (delta-load). The result is stored in a CSV file.
• Transform: Currently limited to column name changes via GNU sed expressions.
• Load: The transformed data is loaded to PostgreSQL Database using the provided schema.

Usage

Docker

docker run \
  -e ES_URL="http://my_elasticsearch_host:9200" \
  -e ES_INDEX_PATTERN='logstash-*' \
  -e CSV_TMPFILE_PATH=/tmp/esdump.csv \
  -e CSV_SED_CMD="1s/prefix_to_remove\.//g ; 1s/@timestamp/timestamp/ ; 1s/kubernetes\.labels\.release/my_instance/ " \
  -e PG_HOST=my_database_host \
  -e PG_USER=my_database_user \
  -e PG_DATABASE=my_database_name \
  -e PG_PASSWORD=my_database_pass \
  -e PG_DDL_FILE=/tmp/table.sql \
  -e PG_SCHEMA_NAME=public \
  -e PG_TABLE_NAME=my_table \
  -e PG_TIME_FIELD=my_time_field \
  -e REFRESH_INTERVAL=3600 \
  -v $(pwd)/table.sql:/tmp/table.sql \
  tibkiss/es2postgres

Kubernetes / Helm-2.x

git clone https://github.com/tibkiss/es2postgres
cd es2postgres
cp /path/to/my/ddl.sql helm-chart/ddl.sql

helm install \
  --name es2postgres \
  --set es.url=http://elasticsearch-master:9200 \
  --set es.indexPattern="logstash-*" \
  --set pg.host="postgresql" \
  --set pg.password=superSeKretPaSS \
  --set pg.database=my_database \
  --set pg.tableName=my_table \
  --set pg.timeField=time \
  --set pg.ddl=ddl.sql \
  --set csvSedCmd="1s/@timestamp/timestamp/ ; 1s/kubernetes\.labels\.release/my_instance/ " \
  ./helm-chart

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.