4.0.0
- Update python to version 3 (from version 0.2.0 of elastalert python2 is not supported)
- Update build image to alpine:3.13
- Update main image to node:14-alpine
- Update elastalert to latest version (as of 2021-03-15) rev: 1dc4f30f30d39a689f419ce19c7e2e4d67a50be3
- Publish images to (Docker Hub)[https://hub.docker.com/r/karql/elastalert].