InFlightConn

To proactively prevent Services from being overwhelmed with high load, the number of allowed simultaneous connections by IP can be limited with the inFlightConn TCP middleware.

Configuration Examples

Structured (YAML)

# Limiting to 10 simultaneous connections
tcp:
  middlewares:
    test-inflightconn:
      inFlightConn:
        amount: 10

Structured (TOML)

# Limiting to 10 simultaneous connections
[tcp.middlewares]
  [tcp.middlewares.test-inflightconn.inFlightConn]
    amount = 10

Labels

labels:
  - "traefik.tcp.middlewares.test-inflightconn.inflightconn.amount=10"

Tags

// Limiting to 10 simultaneous connections
{
  //..
  "Tags" : [
    "traefik.tcp.middlewares.test-inflightconn.inflightconn.amount=10"
  ]
}

Kubernetes

apiVersion: traefik.io/v1alpha1
kind: MiddlewareTCP
metadata:
  name: test-inflightconn
spec:
  inFlightConn:
    amount: 10

Configuration Options

Field	Description	Default	Required
amount	The amount option defines the maximum amount of allowed simultaneous connections. The middleware closes the connection if there are already amount connections opened.	""	Yes