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TCP LoadBalancing
TCP load balancing is one of the core features of Voyager Ingress. Voyager can handle TCP Load balancing with or without TLS. One Voyager Ingress can also be used to load balance both HTTP and TCP.
One Simple TCP Rule Would be:
apiVersion: voyager.appscode.com/v1beta1
kind: Ingress
metadata:
name: test-ingress
namespace: default
spec:
tls:
- secretName: mycert
hosts:
- other.example.com
rules:
- host: one.example.com
tcp:
port: '9898'
backend:
serviceName: tcp-service
servicePort: '50077'
- host: other.example.com
tcp:
port: '7878'
backend:
serviceName: tcp-service
servicePort: '50077'
- host: other.example.com
tcp:
port: '7800'
noTLS: true
backend:
serviceName: tcp-service
servicePort: '50077'
For this Ingress, HAProxy will open up 3 separate ports:
port 9898: Passes traffic to pods behind tcp-service:50077. Uses no TLS, since
spec.TLSdoes not have a matching host.port 7878: Passes traffic to pods behind tcp-service:50077. Uses TLS, since
spec.TLShas a matching host.port 7880: Passes traffic to pods behind tcp-service:50077. Uses no TLS, even though
spec.TLShas a matching host. This is becausetcp.noTLSis set to true for this rule.