Maestro

Maestro is a component of the Kube Orchestra Project, a multi-cluster resources orchestrator for Kubernetes.

Maestro is the API for cluster registration and single-cluster resources definition.

Kube Orchestra Architecture

Run

$ go install github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway
$ go install google.golang.org/protobuf/cmd/protoc-gen-go
$ go install google.golang.org/grpc/cmd/protoc-gen-go-grpc
$ go install github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2
$ buf generate
$ go run cmd/server/main.go

Develop

Mosquitto

Mosquitto is an open-source MQTT broker

# Start mosquitto
make mosquitto-start

# Stop mosquitto
make mosquitto-stop

In order to connect to this Mosquitto server use user: admin, password: password, on port 1883. MQTT Explorer is a good client for local inspection and manipulation of the MQTT messages.

DynamoDB

# Start local DynamoDB
make dynamodb-start

# Read necessary env to be able to use `aws` CLI
source hack/dynamodb-local-env.sh

# List created tables
aws dynamodb list-tables

# Dump all resources
aws dynamodb scan --table-name Resources

Consumer

# Create a new Consumer
curl -X POST  localhost:8090/v1/consumers -H "Content-Type: application/json" -d '{"name": "Test", "labels": [{"key": "k1", "value": "v1" }]}'
{
  "id": "af467f701-f6af-408b-ba2f-9436896be890",
  "name": "Test",
  "labels": [
    {
      "key": "k1",
      "value": "v1"
    }
  ]
}

# And another one
curl -X POST  localhost:8090/v1/consumers -H "Content-Type: application/json" -d '{"name": "Test2", "labels": [{"key": "k1", "value": "v1" }]}'
{
  "id": "c497f701-f6af-408b-ba2f-9436896be537",
  "name": "Test",
  "labels": [
    {
      "key": "k1",
      "value": "v2"
    }
  ]
}

# Get a specific Consumer
curl localhost:8090/v1/consumers/c497f701-f6af-408b-ba2f-9436896be537 | jq
{
  "id": "c497f701-f6af-408b-ba2f-9436896be537",
  "name": "Test",
  "labels": [
    {
      "key": "k1",
      "value": "v2"
    }
  ]
}

Resource

# replace with the uuid of the target consumer
CONSUMER_ID="af467f701-f6af-408b-ba2f-9436896be890"

# create resource
curl -X POST localhost:8090/v1/consumers/$CONSUMER_ID/resources -H "Content-Type: application/json" --data-binary @examples/deployment.json
{
  "id": "a287fa52-924f-44e6-9101-5a35cc4af496",
  "consumerId": "303b9aa8-4980-41fd-8f97-339e4645f38c",
  "generationId": "1",
  "object": {
    "apiVersion": "apps/v1",
    "kind": "Deployment",
    ...
  },
  "status": null
}

# get resource
RESOURCE_ID="a287fa52-924f-44e6-9101-5a35cc4af496"
curl localhost:8090/v1/resources/$RESOURCE_ID

# update resource
curl -X PUT localhost:8090/v1/resources/$RESOURCE_ID -H "Content-Type: application/json" --data-binary @examples/deployment.v2.json

Integrating with ConcertMaster

# Get a Consumer ID
CONSUMER_ID=$(curl -s -X POST localhost:8090/v1/consumers|jq -r .id)

# From ConcertMaster's README
...
CONCERTMASTER_TOPIC_PREFIX=v1/ CONCERTMASTER_CLIENT_ID=$CONSUMER_ID go run ./cmd/concertmaster
...

# Create a resource
RESOURCE_ID=$(curl -s -X POST localhost:8090/v1/consumers/$CONSUMER_ID/resources -H "Content-Type: application/json" --data-binary @hack/example.deployment.json|jq -r .id)

# Update a resource
curl -X PUT localhost:8090/v1/resources/$RESOURCE_ID -H "Content-Type: application/json" --data-binary @hack/example.deployment.v2.json

apahim/maestro