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change coredns image name to coredns/coredns and prefix v to tag (#7570)

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follow new naming conventions for gcr's coredns image.
starting from 1.21 kubeadm assumes it to be `coredns/coredns`:
this causes the kubeadm deployment being unable to pull image, beacuse `v`
was also added in image tag, until the role `kubernetes-apps` ovverides
it with the old name, which is only compatible with <=1.7.

Backward comptability with kubeadm <=1.20 is mantained checking
kubernetes version and falling back to old names (`coredns:1.xx`) when
the version is less than 1.21
This commit is contained in:
MRoci
2021-04-30 16:43:58 +02:00
committed by GitHub
parent 3f4eb9be08
commit a0ee569091
3 changed files with 7 additions and 5 deletions
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roles/kubernetes/control-plane/templates/kubeadm-config.v1beta2.yaml.j2
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@@ -84,7 +84,7 @@ etcd:
{% endif %}
dns:
type: CoreDNS
imageRepository: {{ coredns_image_repo | regex_replace('/coredns$','') }}
imageRepository: {{ coredns_image_repo | regex_replace('/coredns.*$','') }}
imageTag: {{ coredns_image_tag }}
networking:
dnsDomain: {{ dns_domain }}