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k8s-starter-pack/apps/demo/service.yaml
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2026-08-22 17:30:45 +01:00
# A Service gives a stable way to reach a set of Pods, even as individual
# Pods are created and destroyed and get new internal IP addresses over
# time. This Service selects any Pod labelled app: demo (see
# deployment.yaml) and forwards traffic to it.
#
# type: LoadBalancer asks the cluster for a real, dedicated IP address that
# anything on your network can reach directly. On a cloud provider that
# would provision an actual cloud load balancer; on bare metal there's
# nothing to provision it, which is exactly the gap MetalLB
# (apps/metallb.yaml) fills — it watches for LoadBalancer Services and
# hands them an address from the pool configured in
# apps/metallb/templates/ipaddresspool.yaml. Until that pool exists, this
# Service's address will show as <pending>; see docs/05-metallb.md.
apiVersion: v1
kind: Service
metadata:
name: demo
namespace: demo
annotations:
# Requests this specific address from MetalLB's pool, so it stays
# predictable across rebuilds instead of getting whatever's next free.
# Must fall inside the range in
# apps/metallb/templates/ipaddresspool.yaml, or MetalLB will never
# satisfy the request.
metallb.universe.tf/loadBalancerIPs: "192.168.1.241" # EDIT ME
spec:
type: LoadBalancer
selector:
app: demo
ports:
- port: 80
targetPort: 80