Minikube MetalLB

helm repo add metallb https://metallb.github.io/metallb
helm repo update && helm repo list
kubectl config get-contexts

Config

export KUBECONFIG="${HOME}/.kube/dev-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/gcp-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/config"

Install

helm show values metallb/metallb --version=0.14.8|less helm show values metallb/metallb --version=0.14.9|less kubectl get ns|grep metallb-system kubectl delete ns metallb-system kubectl get ns|grep metallb-system kubectl create ns metallb-system

cat <<YML | helm -n=metallb-system install metallb metallb/metallb --version=0.14.9 -f=- --- installCRDs: true fullnameOverride: metallb YML

cat << YML | kubectl -n=metallb-system apply -f=- --- apiVersion: metallb.io/v1beta1 kind: IPAddressPool metadata: name: metallb-ip-pool namespace: metallb-system spec: addresses: - 192.168.49.100-192.168.49.199 --- apiVersion: metallb.io/v1beta1 kind: L2Advertisement metadata: name: metallb-l2-ad namespace: metallb-system spec: ipAddressPools: - metallb-ip-pool YML

Uninstall

helm uninstall -n=metallb-system metallb
kubectl delete namespace metallb

MetalLB » Forward

MetalLB » Implement » Forward » Routing
Name	Network	Subnets	Forward
Network » MetalLB	192.168.49.100/30	192.168.49.100 … 103/30 = 04	✅
Network » MetalLB	192.168.49.104/30	192.168.49.104 … 107/24 = 04	⚪️
Network » MetalLB	192.168.49.104/29	192.168.49.104 … 111/29 = 08	✅
Network » MetalLB	192.168.49.112/29	192.168.49.112 … 119/29 = 08	⚪️
Network » MetalLB	192.168.49.112/28	192.168.49.112 … 127/28 = 16	✅
Network » MetalLB	192.168.49.128/28	192.168.49.128 … 143/28 = 16	⚪️
Name	Network	Subnets	Forward
Network » MetalLB	192.168.49.128/27	192.168.49.128 … 159/27 = 32	✅
Network » MetalLB	192.168.49.160/27	192.168.49.160 … 191/27 = 32	✅
Network » MetalLB	192.168.49.192/27	192.168.49.192 … 223/27 = 32	⚪️
Network » MetalLB	192.168.49.192/29	192.168.49.192 … 199/29 = 08	✅

MetalLB » Forward » Route

MetalLB » IP » Route » Service

vim /etc/sysctl.conf # Uncomment the next line to enable packet forwarding for IPv4 net.ipv4.ip_forward=1 sudo sysctl -p net.ipv4.ip_forward = 1 ip route | grep default default via 172.31.1.1 dev eth0 proto dhcp src 65.21.251.38 metric 100 cat << EXE | sudo bash cat << ENV | tee /etc/default/metallb-route >/dev/null METAL_LB_GTW_NAME=minikube METAL_LB_GTW_HOST=$(docker network inspect minikube|jq -r '.[].Containers[]?.IPv4Address|split("/")[0]') ENV echo cat /etc/default/metallb-route EXE cat <<'INI' | sudo tee /etc/systemd/system/metallb-route.service >/dev/null [Unit] Description=MetalLB Routes Wants=network-online.target docker.service snap.lxd.daemon.service containerd.service minikube.service After=network-online.target docker.service snap.lxd.daemon.service containerd.service minikube.service [Service] Type=oneshot EnvironmentFile=-/etc/default/metallb-route ExecStartPre=/bin/sleep 15 ExecStartPre=/bin/bash -c "if [ -z \"${METAL_LB_GTW_HOST}\" ]; then echo \"Variable METAL_LB_GTW_HOST not set in /etc/default/metallb-route\"; errors_exit; fi" ExecStart=/usr/sbin/ip route add 192.168.49.100/30 via ${METAL_LB_GTW_HOST} ExecStart=/usr/sbin/ip route add 192.168.49.104/29 via ${METAL_LB_GTW_HOST} ExecStart=/usr/sbin/ip route add 192.168.49.112/28 via ${METAL_LB_GTW_HOST} ExecStart=/usr/sbin/ip route add 192.168.49.128/27 via ${METAL_LB_GTW_HOST} ExecStart=/usr/sbin/ip route add 192.168.49.160/27 via ${METAL_LB_GTW_HOST} ExecStart=/usr/sbin/ip route add 192.168.49.192/29 via ${METAL_LB_GTW_HOST} ExecStop=/usr/sbin/ip route del 192.168.49.100/30 ExecStop=/usr/sbin/ip route del 192.168.49.104/29 ExecStop=/usr/sbin/ip route del 192.168.49.112/28 ExecStop=/usr/sbin/ip route del 192.168.49.128/27 ExecStop=/usr/sbin/ip route del 192.168.49.160/27 ExecStop=/usr/sbin/ip route del 192.168.49.192/29 RemainAfterExit=yes [Install] WantedBy=multi-user.target INI cat << EXE | sudo bash systemctl daemon-reload cat /etc/systemd/system/metallb-route.service systemctl enable --now metallb-route.service systemctl status metallb-route.service echo && ip route show echo && sysctl -p EXE cat << EXE | bash traceroute 192.168.49.100 traceroute 192.168.49.101 EXE cat << EXE | sudo bash systemctl daemon-reload cat /etc/systemd/system/metallb-route.service systemctl disable --now metallb-route.service systemctl status metallb-route.service echo && ip route show echo && sysctl -p EXE

MetalLB » LoadBalancer » IP

MetalLB » LoadBalancer » IPs
Name	IPv4	Port	Active
Helm » Kafka	192.168.49.100/32	9094	🟢
Helm » MariaDB	192.168.49.101/32	3306	🟢
Helm » PostgreSQL	192.168.49.102/32	5432	🟢
K8s » PgBouncer	192.168.49.103/32	5432	🟢
Helm » Jenkins	192.168.49.104/32	50000	🟢
K8s » PgVector	192.168.49.105/32	5432	🟢
Helm » Redis	192.168.49.106/32	6379	🟢
Helm » MongoDB	192.168.49.107/32	27017	🟢
Helm » Consul	192.168.49.108/32	8500	🟢
Helm » Harbor	192.168.49.109/32	443	🟢
Name	IPv4	Port	Active
Helm » Pi-Hole	192.168.49.110/32	53,80,443	🟢
	192.168.49.111/32		⚪️
	192.168.49.112/32		⚪️
	192.168.49.113/32		⚪️
	192.168.49.114/32		⚪️
	192.168.49.115/32		⚪️
	192.168.49.116/32		⚪️
	192.168.49.117/32		⚪️
	192.168.49.118/32		⚪️
	192.168.49.119/32		⚪️

Playground

kubectl get pods -n metallb-system -o=yaml|yq -r .items[].spec.containers[].image|awk -F @ '{printf("%s\n", $1)}'|sort -h kubectl -n=metallb-system logs -f svc/metallb-webhook-service -c=controller kubectl -n=metallb-system logs -f svc/metallb-webhook-service kubectl -n=metallb-system describe L2Advertisement metallb-l2-ad kubectl -n=metallb-system get L2Advertisement kubectl -n=metallb-system describe IPAddressPool metallb-ip-pool kubectl -n=metallb-system get IPAddressPool
docker network prune -f docker volume prune -f docker system prune -f docker image ls	cat <<'EXE' | bash for d in system network volume do docker ${d} prune -f;done EXE	cat <<'EXE' | ssh deploy@ci.chorke.org for d in system network volume do docker ${d} prune -f;done EXE
systemctl stop minikube.service systemctl status minikube.service systemctl restart minikube.service	systemctl stop minikube-tunnel.service systemctl status minikube-tunnel.service systemctl restart minikube-tunnel.service	systemctl status network-online.target systemctl status containerd.service systemctl status docker.service
minikube addons disable metallb minikube addons enable metallb minikube addons list minikube status	sudo journalctl -xeu minikube-tunnel sudo journalctl -xeu minikube sudo -i -u minikube minikube ssh	docker network inspect minikube|jq -r '.[].Containers[]?.IPv4Address' docker network inspect minikube|jq -r '.[].Containers[]?.MacAddress' docker network inspect minikube|jq -r '.[].IPAM.Config[].Gateway' docker network inspect minikube|jq -r '.[].Containers[]?.Name'

References

MetalLB » GitHub » Releases MetalLB » Helm » MetalLB MetalLB » Helm » Bitnami MetalLB » Configuration MetalLB » GitHub MetalLB » Usage MetalLB » Install MetalLB	K8s » Swiss Knife K8s » Storage K8s » Ingress K8s » Service K8s » Secret K8s » Run K8s
Helm » GitLab » External Helm » PostgreSQL Helm » MariaDB Helm » Pi-Hole Helm » GitLab Helm » Kafka Helm » Redis	Minikube » Ingress DNS Minikube » Systemd Minikube » Registry Minikube » Tunnel Minikube
Docker on Windows Linux Containers Docker Compose Free Up RAM Kubernetes Kubectl Docker Helm Istio UFW	K8s » Storage » Orchestration K8s » Volume » HostPath K8s » Volume » Local Linux User Creation Helm » Kafka Swap Space CIDR