cyberdojo/avatars docker image

• The source for the cyberdojo/avatars Docker image.
• A docker-containerized stateless micro-service for https://cyber-dojo.org.
• Serves the names and images (jpg/png) for a set of avatars.

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API

• GET alive?
• GET ready?
• GET sha
• GET names
• GET image(n)

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GET alive?

Used as a k8s liveness probe.

• returns
  • true

  { "ready?": true }

• parameters
  • none

  {}

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GET ready?

Used as a k8s readiness probe.

• returns
  • true if the service is ready

  { "ready?": true }

  • false if the service is not ready

  { "ready?": false }

• parameters
  • none

  {}

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GET sha

The git commit sha used to create the Docker image.

• returns
  • The 40 character sha String.
  • eg

  { "sha": "b28b3e13c0778fe409a50d23628f631f87920ce5" }

• parameters
  • none

  {}

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GET names

The names of all 64 avatars.

• returns
  • An array of 64 strings
  • eg

  { "names": [
      "alligator",
      "antelope",
      "bat",
      ...,
      "whale",
      "wolf",
      "zebra"
    ]
  }

• parameters
  • none

  {}

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GET image(n)

The avatar image with the given index, or the avatar image showing all 64 avatars.

• returns
  • An image (eg jpg,png,gif,etc)
• parameters
  • if n == 'all', returns the 8x8 image showing all avatars.
  • if n == 0..63, returns the image showing the n'th avatar, eg, n==0 returns the 'alligator' image, eg, n==63 returns the 'zebra' image.

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JSON in, JSON out

• All methods receive a JSON hash.
  • The hash contains any method arguments as key-value pairs.
• All methods except image(n) return a JSON hash.
  • If the method completes a key equals the method's name.
  • If the method raises an exception, a key equals "exception".
• The method image(n) returns a jpg/png image.

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