Shoot gets created with overlay network disabled and in subsequent reconciliation overlay network gets enabled

[ialidzhikov]

How to categorize this issue?

/area control-plane
/kind bug
/platform aws
/priority 1

What happened:
Similar to #619:

On Shoot creation the Network gets created with:

  spec:
    podCIDR: 100.64.0.0/12
    providerConfig:
      apiVersion: calico.networking.extensions.gardener.cloud/v1alpha1
      backend: none
      ipv4:
        mode: Never
      kind: NetworkConfig
    serviceCIDR: 100.104.0.0/13
    type: calico

After reconciliation the providerConfig gets removed.

  spec:
    podCIDR: 100.64.0.0/12
    serviceCIDR: 100.104.0.0/13
    type: calico

What you expected to happen:
Not the above one.

How to reproduce it (as minimally and precisely as possible):
See above.

Anything else we need to know?:

Environment:

• Gardener version (if relevant):
• Extension version: v1.38.1
• Kubernetes version (use kubectl version):
• Cloud provider or hardware configuration:
• Others:

[ialidzhikov]

The same issue also exists in:

• provider-gcp@v1.25.0
• provider-openstack@v1.29.0-dev (today's master - gardener/gardener-extension-provider-openstack@295e47c)
• provider-alicloud@v1.40.0