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nixos/kubernetes: add dns addonmanger reconcile mode option (#55834)
Allow coredns ConfigMap and Depolyment to be editable by the user. An use case is augmenting the default, generated dns records with local services.
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@ -38,6 +38,18 @@ in {
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type = types.int;
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};
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reconcileMode = mkOption {
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description = ''
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Controls the addon manager reconciliation mode for the DNS addon.
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Setting reconcile mode to EnsureExists makes it possible to tailor DNS behavior by editing the coredns ConfigMap.
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See: <link xlink:href="https://github.com/kubernetes/kubernetes/blob/master/cluster/addons/addon-manager/README.md"/>.
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'';
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default = "Reconcile";
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type = types.enum [ "Reconcile" "EnsureExists" ];
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};
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coredns = mkOption {
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description = "Docker image to seed for the CoreDNS container.";
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type = types.attrs;
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@ -131,7 +143,7 @@ in {
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kind = "ConfigMap";
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metadata = {
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labels = {
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"addonmanager.kubernetes.io/mode" = "Reconcile";
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"addonmanager.kubernetes.io/mode" = cfg.reconcileMode;
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"k8s-app" = "kube-dns";
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"kubernetes.io/cluster-service" = "true";
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};
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@ -162,7 +174,7 @@ in {
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kind = "Deployment";
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metadata = {
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labels = {
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"addonmanager.kubernetes.io/mode" = "Reconcile";
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"addonmanager.kubernetes.io/mode" = cfg.reconcileMode;
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"k8s-app" = "kube-dns";
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"kubernetes.io/cluster-service" = "true";
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"kubernetes.io/name" = "CoreDNS";
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