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SteveL-MSFTSteveL-MSFT
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Add condition support to resources within config
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‎dsc/tests/dsc_resource_condition.tests.ps1

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
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# Copyright (c) Microsoft Corporation.
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# Licensed under the MIT License.
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BeforeDiscovery {
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$configYaml = @'
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$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
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resources:
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- name: test
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type: Microsoft.DSC.Debug/Echo
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condition: "[equals('skip', 'yes')]"
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properties:
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output: "This should not be executed"
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- name: test2
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type: Microsoft.DSC.Debug/Echo
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condition: "[equals('no', 'no')]"
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properties:
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output: "This should be executed"
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'@
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}
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Describe 'Resource condition tests' {
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It 'resource should be skipped for <operation>' -TestCases @(
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@{ operation = 'get'; property = 'actualState' },
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@{ operation = 'set'; property = 'afterState' },
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@{ operation = 'test'; property = 'actualState' }
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) {
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param($operation, $property)
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$out = dsc config $operation -i $configYaml 2>$TestDrive/error.log | ConvertFrom-Json
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$LASTEXITCODE | Should -Be 0
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$out.results.count | Should -Be 1
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$out.results[0].result.$property.Output | Should -BeExactly "This should be executed"
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}
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It 'resource should be skipped for export' {
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$out = dsc config export -i $configYaml 2>$TestDrive/error.log | ConvertFrom-Json
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$LASTEXITCODE | Should -Be 0
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$out.resources.count | Should -Be 1
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$out.resources[0].type | Should -BeExactly 'Microsoft.DSC.Debug/Echo'
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$out.resources[0].properties.output | Should -BeExactly "This should be executed"
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}
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}

‎dsc_lib/locales/en-us.toml

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Original file line numberDiff line numberDiff line change
@@ -3,6 +3,7 @@ _version = 1
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[configure.config_doc]
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configurationDocumentSchemaTitle = "Configuration document schema URI"
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configurationDocumentSchemaDescription = "Defines the JSON Schema the configuration document adheres to."
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skippingResource = "Skipping resource '%{name}' due to condition '%{condition}' with result '%{result}'"
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[configure.constraints]
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minLengthIsNull = "Parameter '%{name}' has minimum length constraint but is null"

‎dsc_lib/src/configure/config_doc.rs

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Original file line numberDiff line numberDiff line change
@@ -160,6 +160,8 @@ pub struct Resource {
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pub properties: Option<Map<String, Value>>,
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#[serde(skip_serializing_if = "Option::is_none")]
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pub metadata: Option<Metadata>,
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#[serde(skip_serializing_if = "Option::is_none")]
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pub condition: Option<String>,
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}
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165167
impl Default for Configuration {
@@ -217,6 +219,7 @@ impl Resource {
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kind: None,
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properties: None,
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metadata: None,
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condition: None,
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}
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}
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}

‎dsc_lib/src/configure/mod.rs

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Original file line numberDiff line numberDiff line change
@@ -311,6 +311,14 @@ impl Configurator {
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for resource in resources {
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progress.set_resource(&resource.name, &resource.resource_type);
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progress.write_activity(format!("Get '{}'", resource.name).as_str());
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if let Some(condition) = &resource.condition {
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let condition_result = self.statement_parser.parse_and_execute(condition, &self.context)?;
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if condition_result != Value::Bool(true) {
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info!("{}", t!("configure.config_doc.skippingResource", name = resource.name, condition = condition, result = condition_result));
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progress.write_increment(1);
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continue;
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}
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}
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let Some(dsc_resource) = discovery.find_resource(&resource.resource_type) else {
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return Err(DscError::ResourceNotFound(resource.resource_type));
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};
@@ -387,6 +395,14 @@ impl Configurator {
387395
for resource in resources {
388396
progress.set_resource(&resource.name, &resource.resource_type);
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progress.write_activity(format!("Set '{}'", resource.name).as_str());
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if let Some(condition) = &resource.condition {
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let condition_result = self.statement_parser.parse_and_execute(condition, &self.context)?;
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if condition_result != Value::Bool(true) {
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info!("{}", t!("configure.config_doc.skippingResource", name = resource.name, condition = condition, result = condition_result));
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progress.write_increment(1);
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continue;
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}
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}
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let Some(dsc_resource) = discovery.find_resource(&resource.resource_type) else {
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return Err(DscError::ResourceNotFound(resource.resource_type));
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};
@@ -535,6 +551,14 @@ impl Configurator {
535551
for resource in resources {
536552
progress.set_resource(&resource.name, &resource.resource_type);
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progress.write_activity(format!("Test '{}'", resource.name).as_str());
554+
if let Some(condition) = &resource.condition {
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let condition_result = self.statement_parser.parse_and_execute(condition, &self.context)?;
556+
if condition_result != Value::Bool(true) {
557+
info!("{}", t!("configure.config_doc.skippingResource", name = resource.name, condition = condition, result = condition_result));
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progress.write_increment(1);
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continue;
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}
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}
538562
let Some(dsc_resource) = discovery.find_resource(&resource.resource_type) else {
539563
return Err(DscError::ResourceNotFound(resource.resource_type));
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};
@@ -608,6 +632,14 @@ impl Configurator {
608632
for resource in &resources {
609633
progress.set_resource(&resource.name, &resource.resource_type);
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progress.write_activity(format!("Export '{}'", resource.name).as_str());
635+
if let Some(condition) = &resource.condition {
636+
let condition_result = self.statement_parser.parse_and_execute(condition, &self.context)?;
637+
if condition_result != Value::Bool(true) {
638+
info!("{}", t!("configure.config_doc.skippingResource", name = resource.name, condition = condition, result = condition_result));
639+
progress.write_increment(1);
640+
continue;
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}
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}
611643
let Some(dsc_resource) = discovery.find_resource(&resource.resource_type) else {
612644
return Err(DscError::ResourceNotFound(resource.resource_type.clone()));
613645
};

‎dscecho/echo.dsc.resource.json

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@@ -30,6 +30,15 @@
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}
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]
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},
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"export": {
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"executable": "dscecho",
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"args": [
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{
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"jsonInputArg": "--input",
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"mandatory": true
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}
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]
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},
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"schema": {
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"command": {
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"executable": "dscecho"

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