smartsupp / status-aggregator

aggregates multiple upstream status endpoints into a single status endpoint

status-aggregator

Aggregates multiple upstream status endpoints into a single status endpoint. Allows to health check an AWS EC2 instance w/ multiple services via a single target group.

Configuration

Takes stringified JSON config of the following format via STATUS_AGGREGATOR_CONFIG environmental variable:

{
    "upstreamUrls": [
        "http://nginx1",
        "http://nginx2"
    ]
}

API

GET /status

{
    "upstream": [
        {"status": 200, "url": "http://nginx1"},
        {"status": 200, "url": "http://nginx2"}
    ]
}

• returns HTTP 200 when:
  • no upstream status URLs are configured
  • all the upstream status checks return HTTP 200
• returns HTTP 503 otherwise, i.e. a single upstream status check failure fails the aggregate status check