Init: inventory schema for role dependant interfaces
This commit is contained in:
Johannes Kirschbauer
@@ -97,6 +97,18 @@ in
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cp schema.json $out
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'';
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};
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legacyPackages.schemas = (
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import ./schemas {
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inherit
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pkgs
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self
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lib
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self'
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;
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}
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);
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packages.inventory-schema-pretty = pkgs.stdenv.mkDerivation {
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name = "inventory-schema-pretty";
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buildInputs = [ pkgs.cue ];
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52
lib/inventory/schemas/default.nix
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52
lib/inventory/schemas/default.nix
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@@ -0,0 +1,52 @@
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{
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self,
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self',
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pkgs,
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lib,
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...
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}:
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let
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includeDefaults = true;
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# { mName :: { roleName :: Options } }
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modulesRolesOptions = self.lib.evalClanModulesWithRoles self.clanModules;
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modulesSchema = lib.mapAttrs (
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_moduleName: rolesOptions:
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lib.mapAttrs (_roleName: options: jsonWithoutHeader.parseOptions options { }) rolesOptions
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) modulesRolesOptions;
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jsonLib = self.lib.jsonschema { inherit includeDefaults; };
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jsonWithoutHeader = self.lib.jsonschema {
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inherit includeDefaults;
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header = { };
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};
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inventorySchema = jsonLib.parseModule (import ../build-inventory/interface.nix);
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renderSchema = pkgs.writers.writePython3Bin "render-schema" {
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flakeIgnore = [
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"F401"
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"E501"
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];
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} ./render_schema.py;
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in
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{
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inherit inventorySchema modulesSchema renderSchema;
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inventory =
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pkgs.runCommand "rendered"
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{
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buildInputs = [
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pkgs.python3
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self'.packages.clan-cli
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];
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}
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''
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export INVENTORY_SCHEMA_PATH=${builtins.toFile "inventory-schema.json" (builtins.toJSON inventorySchema)}
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export MODULES_SCHEMA_PATH=${builtins.toFile "modules-schema.json" (builtins.toJSON modulesSchema)}
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mkdir $out
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# The python script will place the schemas in the output directory
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exec python3 ${renderSchema}/bin/render-schema
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'';
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}
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163
lib/inventory/schemas/render_schema.py
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163
lib/inventory/schemas/render_schema.py
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@@ -0,0 +1,163 @@
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"""
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Python script to join the abstract inventory schema, with the concrete clan modules
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Inventory has slots which are 'Any' type.
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We dont want to evaluate the clanModules interface in nix, when evaluating the inventory
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"""
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import json
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import os
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from pathlib import Path
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from typing import Any
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from clan_cli.errors import ClanError
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# Get environment variables
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INVENTORY_SCHEMA_PATH = Path(os.environ["INVENTORY_SCHEMA_PATH"])
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# { [moduleName] :: { [roleName] :: SCHEMA }}
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MODULES_SCHEMA_PATH = Path(os.environ["MODULES_SCHEMA_PATH"])
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OUT = os.environ.get("out")
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if not INVENTORY_SCHEMA_PATH:
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msg = f"Environment variables are not set correctly: INVENTORY_SCHEMA_PATH={INVENTORY_SCHEMA_PATH}."
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raise ClanError(msg)
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if not MODULES_SCHEMA_PATH:
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msg = f"Environment variables are not set correctly: MODULES_SCHEMA_PATH={MODULES_SCHEMA_PATH}."
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raise ClanError(msg)
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if not OUT:
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msg = f"Environment variables are not set correctly: OUT={OUT}."
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raise ClanError(msg)
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def service_roles_to_schema(
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schema: dict[str, Any],
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service_name: str,
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roles: list[str],
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roles_schemas: list[dict[str, Any]],
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# Original service properties: {'config': Schema, 'machines': Schema, 'meta': Schema, 'extraModules': Schema, ...?}
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orig: dict[str, Any],
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) -> dict[str, Any]:
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"""
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Add roles to the service schema
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"""
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role_schema = {}
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for role in roles:
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role_schema[role] = {
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"type": "object",
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"additionalProperties": False,
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"properties": {
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**orig["roles"]["additionalProperties"]["properties"],
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"config": {
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"title": f"{service_name}-config-role-{role}",
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"oneOf": roles_schemas,
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"type": "object",
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"default": {},
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"additionalProperties": False,
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},
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},
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}
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machines_schema = {
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"type": "object",
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"additionalProperties": {
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"type": "object",
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"properties": {
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**orig["machines"]["additionalProperties"]["properties"],
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"config": {
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"title": f"{service_name}-config",
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"oneOf": roles_schemas,
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"type": "object",
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"default": {},
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"additionalProperties": False,
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},
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},
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},
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}
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services["properties"][service_name] = {
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"type": "object",
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"additionalProperties": {
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"type": "object",
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"additionalProperties": False,
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"properties": {
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# Original inventory schema
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**orig,
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# Inject the roles schemas
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"roles": {
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"title": f"{service_name}-roles",
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"type": "object",
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"properties": role_schema,
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"additionalProperties": False,
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},
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"machines": machines_schema,
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"config": {
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"title": f"{service_name}-config",
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"oneOf": roles_schemas,
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"type": "object",
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"default": {},
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"additionalProperties": False,
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},
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},
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},
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}
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return schema
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if __name__ == "__main__":
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print("Joining inventory schema with modules schema")
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print(f"Inventory schema path: {INVENTORY_SCHEMA_PATH}")
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print(f"Modules schema path: {MODULES_SCHEMA_PATH}")
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modules_schema = {}
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with Path.open(MODULES_SCHEMA_PATH) as f:
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modules_schema = json.load(f)
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inventory_schema = {}
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with Path.open(INVENTORY_SCHEMA_PATH) as f:
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inventory_schema = json.load(f)
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services = inventory_schema["properties"]["services"]
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original_service_props = services["additionalProperties"]["additionalProperties"][
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"properties"
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].copy()
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# Init the outer services schema
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# Properties (service names) will be filled in the next step
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services = {
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"type": "object",
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"properties": {
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# Service names
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},
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"additionalProperties": False,
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}
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for module_name, roles_schema in modules_schema.items():
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# collect all the roles for the service
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roles_schemas = []
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for role_name, role_schema in roles_schema.items():
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role_schema["title"] = f"{module_name}-config-role-{role_name}"
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roles_schemas.append(role_schema)
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# Add the roles schemas to the service schema
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if roles_schemas:
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roles = list(roles_schema.keys())
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services = service_roles_to_schema(
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services,
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module_name,
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roles,
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roles_schemas,
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original_service_props,
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)
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inventory_schema["properties"]["services"] = services
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outpath = Path(OUT)
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with (outpath / "schema.json").open("w") as f:
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json.dump(inventory_schema, f, indent=2)
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with (outpath / "modules_schemas.json").open("w") as f:
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json.dump(modules_schema, f, indent=2)
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