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Add step to deploy a CiliumNetworkPolicy in the LoadBalancer how-to #199

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Jul 31, 2024
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Add step to deploy a CiliumNetworkPolicy in the LoadBalancer how-to #199

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19 changes: 19 additions & 0 deletions docs/modules/ROOT/pages/how-to/non-http-services.adoc
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Expand Up @@ -52,6 +52,25 @@ spec:
app: ggircd
--

Configure a `CiliumNetworkPolicy` to allow access to all workloads in the namespace from outside the cluster:

[source,yaml]
--
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: allow-from-world
spec:
endpointSelector: {} <1>
ingress: <2>
- fromEntities:
- world
--
<1> By configuring a more restrictive `endpoointSelector` you can restrict which workloads are reachable from outside the cluster
<2> This example policy allows traffic from anywhere outside the cluster (via https://docs.cilium.io/en/latest/security/policy/language/#entities-based[entity] `world`).

TIP: See the https://docs.cilium.io/en/latest/security/policy/[Cilium Network Policy documentation] for a detailed overview of what configuration options are available with `CiliumNetworkPolicy`.

On the https://portal.appuio.cloud/zones/cloudscale-lpg-2[cloudscale.ch - LPG 2] zone, the cluster automatically assigns a unique external IPv4 address to this service. To see which IPv4 address has been assigned, go to the OpenShift Web Console and navigate to "Networking/Services." The IP is displayed in the field "External IP."

Using the CLI is also possible:
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