A proof of concept of structured logging from Python to an Elasticsearch + Logstash + Kibana environment using Docker ELK, structlog and python-logstash.

1. docker-compose up, and wait for a bit, the app will start up first, then Elasticsearch and Kibana and finally Logstash
2. As described in the docker-elk initial setup run the fllowing command to create the initial logstash index

$ curl -XPOST -D- 'http://localhost:5601/api/saved_objects/index-pattern' \
    -H 'Content-Type: application/json' \
    -H 'kbn-version: 6.1.0' \
    -d '{"attributes":{"title":"logstash-*","timeFieldName":"@timestamp"}}'

3. curl http://localhost:8888/, should print "Hello, World" and forward a first entry. You should see Logstash output in the terminal.
4. Visit http://localhost:5601/ to open up Kibana, click on Discover and you should see two entries under a logstash-* index.
5. Visit http://localhost:8888/boom/ to log an exception.