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64 lines
2.1 KiB
Nix
64 lines
2.1 KiB
Nix
{
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config,
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kubenix,
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lib,
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# Name of submodule instance.
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name,
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# This is a shorthand for config.submodule.args and contains
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# final values of the args options.
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args,
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...
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}: {
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imports = with kubenix.modules; [
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# This needs to be imported in order to define a submodule.
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submodule
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# Importing this so that we can set config.kubernetes
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# within the context of this submodule.
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k8s
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];
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# Args are used to pass information from the parent context.
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options.submodule.args = {
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kubernetes = lib.mkOption {
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description = "Kubernetes config to be applied to a specific namespace.";
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# We are not given a precise type to this since we are using it
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# to set kubernetes options from the k8s module which are already
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# precisely typed.
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type = lib.types.attrs;
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default = {};
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};
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};
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config = {
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submodule = {
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# Used to uniquely identify a submodule. Used to select submodule
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# "prototype" when instantiating.
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name = "namespaced";
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# Passthru allows a submodule instance to set config of the parent
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# context. It's not strictly required but it's useful for combining
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# outputs of multiple submodule instances, without having to write
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# ad hoc code in the parent context.
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# NOTE: passthru has not effect if given options are not defined
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# in the parent context. Therefore in this case we are expecting that
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# parent imports kubinex.k8s module.
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# Here we set kubernetes.objects.
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# This is a list so even if distinct instances of the submodule contain
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# definitions of identical api resources, these will not be merged or
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# cause conflicts. Lists of resources from multiple submodule instances
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# will simply be concatenated.
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passthru.kubernetes.objects = config.kubernetes.objects;
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};
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kubernetes = lib.mkMerge [
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# Use instance name as namespace
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{namespace = name;}
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# Create namespace object
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{resources.namespaces.${name} = {};}
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# All resources defined here will use the above namespace
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args.kubernetes
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];
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};
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}
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