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Description:

migdalor 0.0.3

Migdalor
Migdalor is a cluster membership library for modern asyncio Python distributed systems running in Kubernetes.
Migdalor doesn't require a separate broker (e.g. Redis, etcd, Zookeeper, Chabby, etc) to work, but leverage Kubernetes out-of-the-box capabilities
to solve the peer discovery problem.
Features

🐍 Modern Asyncio Pythonic API
🔦 Brokerless Kubernetes native peer discovery based on headless services
🔭 Hooks into membership change events
🛠️ Ability to manage membership manually

Installation
pip install midgalor
# or
# poetry add midgalor
# pdm add midgalor

Usage
import migdalor

cluster = migdalor.Cluster(
node_address=(node_address), # the current node address (e.g. 127.0.0.1:8001)
discovery=migdalor.KubernetesServiceDiscovery(service_address=cluster_address), # Kubernetes headless service address (e.g. cluster:8000)
## Callbacks on different events
# nodes_added_handlers=[...]
# nodes_removed_handlers=[...],
## Membership update rate
# update_every_secs=10,
)

await cluster.start()

# You can also add or remove nodes manually if you support that in your protocol
await cluster.add([("127.0.0.1", 8001)])
# await cluster.remove([("127.0.0.1", 8001)])

await cluster.stop()

Midgalor comes with some comprehensive example to help you get started:

The Party Cluster - An example of using Migdalor to implement peer discovery in Kubernetes cluster