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Add dualstack template #36

Merged
merged 1 commit into from
Aug 8, 2024
Merged

Add dualstack template #36

merged 1 commit into from
Aug 8, 2024

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bschimke95
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Adds a template to use for dualstack clusters.

The following steps where done to test with CAPD:

  1. Create a dualstack network
    sudo docker network create kind –ipv6 --driver=bridge -o com.docker.network.bridge.enable_ip_masquerade=true
    (note that docker will ALWAYS use IPv4) -> --ipv6 == dualstack
  2. Generate cluster yaml from templates/docker/cluster-template-dualstack.yaml
KIND_IMAGE=k8s-snap:dev CONTROL_PLANE_MACHINE_COUNT=3 WORKER_MACHINE_COUNT=3 clusterctl generate cluster c1 --from ./templates/docker/cluster-template-dualstack.yaml  --kubernetes-version v1.30.3 > c1.yaml
  1. Wait until all nodes/pods are up on workload cluster
  2. Deploy nginx-dualstack.yaml on the cluster
    k8s kubectl apply -f https://raw.githubusercontent.com/canonical/k8s-snap/main/tests/integration/templates/nginx-dualstack.yaml
  3. Get IPv6 of service:
root@c1-control-plane-x2mk9:/# k8s kubectl describe svc nginx-dualstack | grep IPs
IPs:                      10.152.98.81,fd01::506a
  1. Try to curl nginx endpoint
root@c1-control-plane-x2mk9:/# curl http://\[fd01::506a\]/
<!DOCTYPE html>
<html>
<head>
<title>Kubernetes IPv6 nginx</title> 
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h1>Welcome to nginx on <span style="color:  #C70039">IPv6</span> Kubernetes!</h1>
<p>Pod: nginxdualstack-77676679b6-7rpmt</p>
</body>
</html>

@bschimke95 bschimke95 requested a review from a team as a code owner August 2, 2024 11:17
mateoflorido
mateoflorido approved these changes Aug 8, 2024
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@mateoflorido mateoflorido left a comment

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LGTM. Is this something we would like to include in the testing suite?

@bschimke95
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I don't this this provides much value. We already have a test for dualstack on the k8s-snap.

@bschimke95 bschimke95 merged commit c7befd2 into main Aug 8, 2024
3 of 7 checks passed
@mateoflorido mateoflorido deleted the KU-1149/dualstack branch August 8, 2024 13:44
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@mateoflorido mateoflorido mateoflorido approved these changes

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@bschimke95 @mateoflorido