When it comes to logging, one popular solution is to set up an Elasticsearch stack. The natural combination could be Elasticsearch-Logstash-Kibana (ELK).

We use an ELK stack from https://github.com/deviantony/docker-elk with modification to improve it by adding Docker Swarm configs, and to deploy each of them independently. The original Docker Compose file, docker-compose.yml, are split into three YML files, each for Elasticsearch, Kibana, and Logstash, respectivelyServices must be deployed this way because we do not want to bring the whole logging system down when we change each service's configs. The fork used in this chapter is available at https://github.com/chanwit/docker-elk.

The following figure shows what the stack will ...

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