Max Connections

HTTP listeners return 503 with Retry-After: 1. TCP listeners close the socket immediately

Category: Practical
Task: HTTP listeners return 503 with Retry-After: 1. TCP listeners close the socket immediately

Prerequisites: The product runtime and any backend services referenced by this configuration.

This configuration comes from the selected release. The example has not been run here; external services are not bundled.

Download the source file.

# Max connections: reject new connections when the
# per-listener limit is reached.
#
# HTTP listeners return 503 with Retry-After: 1.
# TCP listeners close the socket immediately.
#
# Usage:
#   cargo run -p praxis-proxy -- -c examples/configs/operations/max-connections.yaml
listeners:
  - name: http
    address: "0.0.0.0:8080"
    max_connections: 100
    filter_chains:
      - main
filter_chains:
  - name: main
    filters:
      - filter: router
        routes:
          - path_prefix: "/"
            cluster: backend
      - filter: load_balancer
        clusters:
          - name: backend
            endpoints:
              - "127.0.0.1:3001"

insecure_options:
  allow_private_endpoints: true # example proxies to local backends