# Floating IP

A floating IP (aka *FIP*), is a public accessible IPv4 address. It is used with [*Service*](https://hyperhq.gitbook.io/pi-docs/feature/service) to enable public access to the associated pods. You cannot attach multiple floating IPs to a *service*, but you can associate multiple services with one single floating IP (as long as no port flicts among different services).

If you allocate a floating IP address but do not use it, you will be [charged for the IP address](https://hyperhq.gitbook.io/pi-docs/pricing#Network). If you use it (with *Service*), you will not be charged for it.

## Lifecycle

You need to explicitly allocate and release floating IPs:

```bash
$ pi create fip
fip/104.197.12.87

$ pi delete fip 104.197.12.87
fip "104.197.12.87" deleted
```

You cannot release an FIP while it is in use.

## Associate Floating IP with Service

Create a new service using an existing floating IP:

```bash
$ pi create fip
fip/104.154.140.179

$ cat <<EOF > /tmp/httpLB.yml
apiVersion: v1
kind: Service
metadata:
  name: http-lb
spec:
  type: LoadBalancer
  loadBalancerIP: 104.154.140.179
  selector:
    app: http
  ports:
    - port: 80
      targetPort: 8080
EOF
$ pi create -f /tmp/httpLB.yml
service/http-lb
```

You can also associate multiple service to one floating IP, with different ports:

```bash
$ cat <<EOF > /tmp/httpsLB.yml
apiVersion: v1
kind: Service
metadata:
  name: https-lb
spec:
  type: LoadBalancer
  loadBalancerIP: 104.154.140.179
  selector:
    app: https
  ports:
    - port: 443
      targetPort: 4433
EOF
$ pi create -f /tmp/httpsLB.yml
service/https-lb
```

## Billing

If you allocate a floating IP address but do not use it, you will be charged with an hourly rate ($0.01/hour). If you use it (with *Service*), you will not be charged for it.