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26th Week of 2021



Configure Docker to host the application

  • New: Explain how to use watchtower to keep docker containers updated.

    With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker Hub or your own image registry. Watchtower will pull down your new image, gracefully shut down your existing container and restart it with the same options that were used when it was deployed initially.

  • Correction: Explain how to run the watchtower checks immediately.

    With the --run-once flag



Elasticsearch Exporter

  • New: Add alert on low number of healthy master nodes.

Operative Systems



  • Correction: Explain how to restore only some indices.

    curl -X POST "{{ url }}/_snapshot/{{ backup_path }}/{{ snapshot_name }}/_restore?pretty" -H 'Content-Type: application/json' -d'
      "indices": "{{ index_to_restore }}",
  • New: Explain how to fix Circuit breakers triggers.