k8s service LoadBalancer

install

MetalLB与Kubernetes集群挂钩，并提供网络负载平衡实现。简而言之，它允许您在不运行在云提供商上的集群中创建LoadBalancer类型的Kubernetes服务

https://metallb.universe.tf/installation/

❯ helm repo add metallb https://metallb.github.io/metallb
"metallb" has been added to your repositories
❯ helm pull  metallb/metallb

❯ helm install -f  ~/oss/k8s-1.26/metallb/value.yaml metallb  ~/oss/k8s-1.26/metallb  -n metallb-system  --create-namespace

value.yaml

value.yaml
controller:
  enabled: true
  # -- Controller log level. Must be one of: `all`, `debug`, `info`, `warn`, `error` or `none`
  logLevel: info
  image:
    repository: k8s.org/cs/metallb-controller
    tag: v0.14.8




speaker:
  enabled: true
  # command: /speaker
  # -- Speaker log level. Must be one of: `all`, `debug`, `info`, `warn`, `error` or `none`
  logLevel: info


  image:
    repository: k8s.org/cs/metallb-speaker
    tag: v0.14.8


  frr:
    enabled: true
    image:
      repository: k8s.org/cs/metallb-frrouting-frr
      tag: 9.1.0  

CRs.

https://metallb.universe.tf/configuration/_advanced_ipaddresspool_configuration/

IPAddress.yaml

IPAddress.yaml
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: ippool-ns-service-alloc-sample
  namespace: metallb-system
spec:
  addresses:
    - 192.168.122.20-192.168.122.50
  avoidBuggyIPs: true
  serviceAllocation:
    priority: 50
    namespaces:
      - apisix
      - default  

kubectl get svc --namespace apisix apisix-dashboard --template "{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"


❯ kubectl get   -n apisix  svc/apisix-gateway
NAME             TYPE           CLUSTER-IP       EXTERNAL-IP      PORT(S)                      AGE
apisix-gateway   LoadBalancer   10.100.233.160   192.168.122.21   80:31388/TCP,443:30529/TCP   45h