ARM增量部署模式

Question

考虑我有一个Azure Function应用程序，其中包含一些应用程序设置和通过以下YAML任务创建的一些功能：

- task: AzureResourceManagerTemplateDeployment@3
displayName: 'deploy resources'
inputs:
azureResourceManagerConnection: azureResourceManagerConnection
subscriptionId:subscriptionId
resourceGroupName: rg
location:location
csmFile: template.bicep
csmParametersFile:parameters.json              
deploymentMode: 'Incremental'

假设我修改了应用程序设置。

如果我在增量部署模式下运行上述YAML任务，这是用修改后的应用程序设置和功能重新创建Azure Function App，还是只更新应用程序设置-Function App和现有功能保持不变？

以下是我的模板二头肌的样子：

var appSettings = [
{
name: 'WEBSITE_ADD_SITENAME_BINDINGS_IN_APPHOST_CONFIG'
value: 1
}
{
name: 'WEBSITE_ENABLE_SYNC_UPDATE_SITE'
value: 1
}
{
name: 'SCM_TOUCH_WEBCONFIG_AFTER_DEPLOYMENT'
value: 0
}
{
name: 'APPINSIGHTS_INSTRUMENTATIONKEY'
value: reference(resourceId(appInsightsResourceGroup, 'microsoft.insights/components/', appInsightsName), '2015-05-01').InstrumentationKey
}
{
name: 'AzureWebJobsStorage'
value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccountName};AccountKey=${listKeys(resourceId(storageAccountResourceGroup, 'Microsoft.Storage/storageAccounts', storageAccountName), providers('Microsoft.Storage', 'storageAccounts').apiVersions[0]).keys[0].value}'
}
{
name: 'WEBSITE_CONTENTAZUREFILECONNECTIONSTRING'
value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccountName};AccountKey=${listKeys(resourceId(storageAccountResourceGroup, 'Microsoft.Storage/storageAccounts', storageAccountName), providers('Microsoft.Storage', 'storageAccounts').apiVersions[0]).keys[0].value}'
}
{
name: 'FUNCTIONS_WORKER_RUNTIME'
value: 'dotnet'
}
{
name: 'FUNCTIONS_EXTENSION_VERSION'
value: '~4'
}
{
name: 'WEBSITE_MAX_DYNAMIC_APPLICATION_SCALE_OUT'
value: maximumElasticWorkerCount
}
{
name: 'appConfigurationEndpoint'
value: appConfigurationEndpoint
}
{
name: 'membershipStorageAccountName'
value: '@Microsoft.KeyVault(SecretUri=${reference(membershipStorageAccountName, '2019-09-01').secretUriWithVersion})'
}
{
name: 'membershipContainerName'
value: '@Microsoft.KeyVault(SecretUri=${reference(membershipContainerName, '2019-09-01').secretUriWithVersion})'
}
]
var stagingSettings = [
{
name: 'WEBSITE_CONTENTSHARE'
value: toLower('functionApp-staging')
}
{
name: 'AzureFunctionsJobHost__extensions__durableTask__hubName'
value: '${solutionAbbreviation}compute${environmentAbbreviationStaging}'
}
{
name: 'AzureWebJobs.StarterFunction.Disabled'
value: 1
}
]
var productionSettings = [
{
name: 'WEBSITE_CONTENTSHARE'
value: toLower('functionApp')
}
{
name: 'AzureFunctionsJobHost__extensions__durableTask__hubName'
value: '${solutionAbbreviation}compute${environmentAbbreviation}'
}
{
name: 'AzureWebJobs.StarterFunction.Disabled'
value: 0
}
]
module functionAppTemplate 'functionApp.bicep' = {
name: 'functionAppTemplater'
params: {
name: '${functionAppName}'
kind: functionAppKind
location: location
servicePlanName: servicePlanName
dataKeyVaultName: dataKeyVaultName
dataKeyVaultResourceGroup: dataKeyVaultResourceGroup
secretSettings: union(appSettings, productionSettings)
}
dependsOn: [
servicePlanTemplate
]
}
module functionAppSlotTemplate 'functionAppSlot.bicep' = {
name: 'functionAppSlotTemplate'
params: {
name: '${functionAppName}/staging'
kind: functionAppKind
location: location
servicePlanName: servicePlanName
dataKeyVaultName: dataKeyVaultName
dataKeyVaultResourceGroup: dataKeyVaultResourceGroup
secretSettings: union(appSettings, stagingSettings)
}
dependsOn: [
functionAppTemplate
]
}
functionapp.bicep
resource functionApp 'Microsoft.Web/sites@2018-02-01' = {
name: name
location: location
kind: kind
properties: {
serverFarmId: resourceId('Microsoft.Web/serverfarms', servicePlanName)
clientAffinityEnabled: false
httpsOnly: true
siteConfig: {
use32BitWorkerProcess : false
appSettings: secretSettings
}
}
identity: {
type: 'SystemAssigned'
}
}
functionAppSlot.bicep
resource functionAppSlot 'Microsoft.Web/sites/slots@2018-11-01' = {
name: name
kind: kind
location: location
properties: {
clientAffinityEnabled: true
enabled: true
httpsOnly: true
serverFarmId: resourceId('Microsoft.Web/serverfarms', servicePlanName)
siteConfig: {
use32BitWorkerProcess : false
appSettings: secretSettings
}
}
identity: {
type: 'SystemAssigned'
}
}

Answer 1

您的函数应用程序将不会重新创建。只有与所需状态不匹配的状态或值才会更改。

这意味着，如果您更改二头肌文件中的设置，例如FUNCTIONS_EXTENSION_VERSION，它将在Function App设置中更改。

https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/overview

可重复的结果：在整个开发生命周期中重复部署您的基础设施，并确保您的资源以一致的方式部署。模板是幂等的，这意味着您可以多次部署相同的模板，并在相同的状态下获得相同的资源类型。您可以开发一个表示所需状态的模板，而不是开发许多单独的模板来表示更新。