forked from fediversity/fediversity
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aa877b7678
| Author | SHA1 | Date | |
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| aa877b7678 | |||
| 39f39c3ff7 | |||
| cc8f55b193 | |||
| ce51aa6809 |
2 changed files with 79 additions and 59 deletions
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@ -37,7 +37,7 @@ in
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};
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policy =
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{ config, ... }:
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{ ... }:
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{
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_class = "fediversity-resource-policy";
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@ -45,10 +45,10 @@ in
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extra-config = mkOption {
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description = "Any options from NixOS";
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};
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apply = mkOption {
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type = with types; functionTo raw;
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default = requests: lib.mkMerge (requests ++ [ config.extra-config ]);
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};
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};
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config = {
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resource-type = types.raw; # TODO: what's the type of a NixOS configuration?
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apply = policy: requests: lib.mkMerge (requests ++ [ policy.extra-config ]);
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};
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};
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};
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@ -72,7 +72,7 @@ in
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};
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};
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policy =
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{ config, ... }:
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{ ... }:
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{
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_class = "fediversity-resource-policy";
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options = {
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@ -85,22 +85,22 @@ in
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type = types.bool;
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default = false;
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};
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apply = mkOption {
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type = with types; functionTo raw; # TODO: splice out the user type from NixOS
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default =
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requests:
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let
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# Filter out requests that need wheel if policy doesn't allow it
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validRequests = lib.filterAttrs (_name: req: !req.wheel || config.wheel) requests;
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in
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lib.optionalAttrs (validRequests != { }) {
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${config.username} = {
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isNormalUser = true;
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packages = with lib; concatMap (request: attrValues request.packages) (attrValues validRequests);
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extraGroups = lib.optional config.wheel "wheel";
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};
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};
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config = {
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resource-type = types.raw; # TODO: splice out the user type from NixOS
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apply =
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policy: requests:
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let
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# Filter out requests that need wheel if policy doesn't allow it
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validRequests = lib.filterAttrs (_name: req: !req.wheel || policy.wheel) requests;
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in
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lib.optionalAttrs (validRequests != { }) {
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${policy.username} = {
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isNormalUser = true;
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packages = with lib; concatMap (request: attrValues request.packages) (attrValues validRequests);
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extraGroups = lib.optional policy.wheel "wheel";
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};
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};
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};
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};
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};
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};
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@ -125,26 +125,26 @@ in
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};
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};
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};
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environments.single-nixos-vm =
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{ ... }:
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{
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_class = "fediversity-environment";
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resources.shell.login-shell.username = "operator";
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implementation = requests: {
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_class = "nixos";
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users.users = (
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config.resources.login-shell.policy.apply (
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lib.concatMapAttrs (
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_application: resources:
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lib.mapAttrs (_k: lib.getAttr "login-shell") (
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lib.filterAttrs (_name: value: value ? login-shell) resources
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)
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) requests
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)
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);
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};
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environments.single-nixos-vm = environment: {
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_class = "fediversity-environment";
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resources.shell.login-shell = {
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username = "operator";
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wheel = false; # FIXME: default needs the type uncommented
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};
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implementation = requests: {
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_class = "nixos";
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users.users = (
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config.resources.login-shell.policy.apply environment.config.resources.shell.login-shell (
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lib.concatMapAttrs (
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_application: resources:
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lib.mapAttrs (_k: lib.getAttr "login-shell") (
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lib.filterAttrs (_name: value: value ? login-shell) resources
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)
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) requests
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)
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);
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};
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};
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};
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options = {
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example-configuration = mkOption {
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@ -72,11 +72,26 @@ in
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type = submoduleWith {
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class = "fediversity-resource-policy";
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modules = [
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{
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options.apply = mkOption {
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description = "Apply the policy to a request";
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(policy: {
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_class = "fediversity-resource-policy";
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options = {
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# TODO(@fricklerhandwerk): not sure it can be made
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# sensible syntactically, but essentially we want to
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# ensure that `apply` is defined, but since its output
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# depends on the specific policy we also need to
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# determine that somehow.
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# hopefully this also helps with correct composition down the line.
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resource-type = mkOption {
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description = "The type of resource this policy configures";
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type = types.optionType;
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};
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# TODO(@fricklerhandwerk): do we need a function type here as well, or is it in the way?
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apply = mkOption {
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description = "Apply the policy to a request";
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type = functionTo policy.config.resource-type;
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};
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};
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}
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})
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];
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};
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};
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@ -133,23 +148,28 @@ in
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Setting this is optional, but provides a place to declare that information for programmatic use in the resource mapping.
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'';
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# TODO: maybe transpose, and group the resources by type instead
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type = attrsOf (
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attrTag (
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lib.mapAttrs (
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_name: resource:
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mkOption {
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type = submoduleWith {
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class = "fediversity-resource-policy";
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modules = [ resource.policy ];
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};
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}
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) config.resources
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)
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);
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# # FIXME: error: The option `environments.single-nixos-vm.resources.shell.login-shell.apply' does not exist. Definition values:
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# # - In `<unknown-file>': <function>
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# # However there are no options defined in `environments.single-nixos-vm.resources.shell.login-shell'. Are you sure you've
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# # declared your options properly? This can happen if you e.g. declared your options in `types.submodule'
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# # under `config' rather than `options'.
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# type = attrsOf (
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# attrTag (
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# lib.mapAttrs (
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# _name: resource:
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# mkOption {
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# type = submoduleWith {
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# class = "fediversity-resource-policy";
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# modules = [ resource.policy ];
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# };
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# }
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# ) config.resources
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# )
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# );
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};
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implementation = mkOption {
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description = "Mapping of resources required by applications to available resources; the result can be deployed";
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type = functionTo environment.config.resource-mapping.output-type;
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type = functionTo raw;
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};
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resource-mapping = mkOption {
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description = "Function type for the mapping from resources to a (NixOps4) deployment";
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@ -165,7 +185,7 @@ in
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};
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deployment = mkOption {
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description = "Generate a deployment from a configuration";
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type = functionTo (submodule environment.config.resource-mapping.output-type);
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type = functionTo raw;
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readOnly = true;
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default =
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cfg:
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