TCP Balancers

The Managed TCP Load Balancer service simplifies the deployment and management of TCP load balancers. It efficiently distributes incoming TCP traffic across multiple backend servers, ensuring high availability and optimal resource utilization.

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Configuration Example

Here is a YAML configuration example for a TCP Load Balancer deployment with two replicas and an enabled network whitelist:

apiVersion: apps.cozystack.io/v1alpha1
kind: TCPBalancer
metadata:
  name: tcp-balancer-example
spec:
  external: false
  replicas: 2
  httpAndHttps:
    mode: tcp
    targetPorts:
      http: 80
      https: 443
    endpoints:
      - address: "192.168.1.10"
      - address: "192.168.1.11"
  whitelistHTTP: true
  whitelist:
    - "192.168.1.0/24"
    - "10.0.0.0/8"

Using the kubeconfig provided by Hikube and this example yaml, saved as a manifest.yaml file, you can easily test the application deployment using the following command:

kubectl apply -f manifest.yaml

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Configurable Parameters

General Parameters

Name	Description	Default Value
external	Allows external access from outside the cluster.	false
replicas	Number of HAProxy replicas.	2

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Configuration Parameters

Name	Description	Default Value
httpAndHttps.mode	Mode for the balancer (tcp or tcp-with-proxy).	tcp
httpAndHttps.targetPorts.http	HTTP port used by the balancer.	80
httpAndHttps.targetPorts.https	HTTPS port used by the balancer.	443
httpAndHttps.endpoints	List of backend endpoint addresses.	[]
whitelistHTTP	Enables HTTP security via a network whitelist.	false
whitelist	List of authorized client networks.	[]

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Additional Resources

To learn more about HAProxy and TCP load balancing, check the following resources:

• Official HAProxy Documentation Comprehensive guide for configuring and using HAProxy in load balancing scenarios.