dnsdrone/mocker

creates a mocked docker environment with persistent and dynamic containers for testing issues

Usage

Seeder:

To create a mocked docker environment run dnsdrone/mocker as seeder by using the seed command. The seeder instance will create the defined amount of persistent containers which will idle infinitely and the defined amount of dynamic containers which will kill themselves by a random time between the minimum and maximum lifespan value.

(when a dynamic containers maximum lifespan is reached it will kill itself and the seeder creates a new one with a random idle time to keep up to the defined amount of containers)

docker run --rm -ti \
  -v "/var/run/docker.sock:/var/run/docker.sock" \
  -e "SPAWN_PERSISTENT=<number>" \
  -e "SPAWN_DYNAMIC=<number>" \
  -e "SPAWN_MIN_LIFESPAN=<number>" \
  -e "SPAWN_MAX_LIFESPAN=<number>" \
  -e "MOCKED_LABELS_GLOB=<string>" \
  --name "dnsdrone-seeder" \
  dnsdrone/mocker \
  seed

Idler:

You can also create idling instances directly and skip the automatic seeder by running the container with the idle command to keep an infinite idling container.

(optionally you can add an integer value as a parameter for a desired amount of minutes - for instance idle 3 for creating a container that will kill itself after three minutes)

docker run --rm -ti \
  -v "/var/run/docker.sock:/var/run/docker.sock" \
  --name "dnsdrone-idler" \
  dnsdrone/mocker \
  idle [int minutes]

Environment Variables (for seeder)

name	default	description
SPAWN_PERSISTENT	10	amount of persistent idle containers
SPAWN_DYNAMIC	15	amount of dynamic idle containers
SPAWN_MIN_LIFESPAN	5	minimum idle time of dynamic containers
SPAWN_MAX_LIFESPAN	10	maximum idle time of dynamic containers
MOCKED_LABELS_GLOB	*	pattern for picking random label files

Contribution / Example / Running Local

You can find an example use case in test_local.sh.

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License

MIT