eavesdocker

Eavesdocker

Collect logs from docker containers stdout and forward to various destinations according to your configuration.

Features

• Filter which services or stacks you want to include in the processing
• Build simple or complex processing paths for various types of log entries
• Automatic conversion to JSON entries
• Forwards logs to many destinations
  • Mongo Collection
  • Redis Pub/Sub Channel
  • E-mail (SMTP Server)
  • New GitLab Issue
  • GitLab Alert
  • Webhook
  • we are still adding more transports...
• Monitor container and swarm nodes health using Redis

Get Started

1. Create an entry on the [requestcatcher.com] website so we can test a webhook transport.
2. Create a simple test configuration file config.yml:

pipeline:
  - webhook:
      url: yoururl.requestcatcher.com
      headers:
        X-Foo: bar

1. Run the following command

docker run -v "/var/run/docker.sock:/var/run/docker.sock" -v "config.yml:/config.yml" gcsboss/eavesdocker -c /config.yml`

1. Run any container that dumps something to stdout: docker run hello

Install on Swarm

1. Create a configuration file with YAML.
2. Add the configuration file to your swarm.

configs:
  eavesdocker.yml:
    file: ./eavesdocker.yml

1. Add Eavesdocker service globally to your swarm

logger:
  image: gcsboss/eavesdocker:0.0.10
  volumes:
    - "/var/run/docker.sock:/var/run/docker.sock"
  configs: [ eavesdocker.yml ]
  command: -c /eavesdocker.yml
  deploy:
    mode: global
    restart_policy:
      condition: any

1. Generate some logs and verify your destinations

Transports

In this section you can see the available transports and their settings.

• Mongo Collection

  - mongo:
      url: 'mongodb://myDb' # Required. Your MongoDB connection URL.
      db: 'MyDB' # Optional. Defaults to `'Eavesdocker'`. Which database to connect to.
      collection: 'MyCollection' # Optional. Defaults to `'Log_Entries'`. Which collection to send log entries to.
  

• Redis Pub/Sub

  - redispub:
      host: 'my-redis-host' # Optional. Defualts to `'localhost'`. The Domain/IP of you Redis server.
      port: 1111 # Optional. Defaults to `6379`. Redis connection port.
      password: 'mypass' # Optional. Defaults to `null`. The redis password in case auth is setup on the server.
      channel: 'redis:__channel' # Required. Redis channel where to publish messages.
  

• Webhook

  - webhook:
      url: 'http://example.com/somePath' # Required. The URL to call.
      headers: # Optional. A set of HTTP headers in key-value format.
        x-my-header: someValue
  

• New GitLab Issue

  - gitlab:
      url: 'https://my-gitlab.com' # Optional. Defaults to GitLab.com. The URL of your GitLab instance.
      project: 232342 # Required. Your Project ID or path string.
      token: 'glpat-aaaaaaaa' # Optional. Defaults to `null`. A token to authenticate in GitLab.
      labels: # Optional. Defaults to `[]`. A list of labels to be added to the new issue. Strings are templated.
        - label-a
        - something-{key}-cool
      title: 'some {key} title' # Optional. Defaults to `'{level} - {message}'`. A template string to generate the new issue title.
  
  

• GitLab Alert

  - gitlabAlert:
      url: 'https://my-gitlab.com/endpoint/etc...' # Required. The Alert integration endpoint from your GitLab project.
      key: 'something' # Required. The GitLab Alert integration Authorization Key.
      title: 'some {key} title' # Optional. Defaults to `'env - {message}'`. A template string to generate the alert title.
      service: 'some {key} service' # Optional. Defaults to `null`. A template string to generate the alert service.
      env: 'my-env' # Optional. A GitLab environment name.
      fingerprintFields: # Optional. Defaults to `[]`. An array of log entry fields to be considered for fingerprinting.
        - keyA
        - keyB
  

• SMTP

  - email:
      subject: 'some {key} subject' # Optional. Defaults to `'{level} - {message}'`. A template string to generate the subject line.
      to: '[e-mail]' # Required. A mail recipient.
      from: '[e-mail]' # Required. A mail sender address.
      host: 'smtp.example.com' # Required. Your SMTP host.
      port: 465 # Required. Your SMTP port.
      secure: true # Optional. Defaults to `false`. Whether to use TLS.