/azure-prepare

azure.yaml Generation

⛔ CRITICAL: Check for .NET Aspire projects FIRST

DO NOT manually create azure.yaml for .NET Aspire projects. If you detect:

• Files ending with *.AppHost.csproj (e.g., MyApp.AppHost.csproj)
• Aspire.Hosting or Aspire.AppHost.Sdk in .csproj files

STOP and use azd init --from-code instead. See aspire.md for details.

Create azure.yaml in project root for AZD.

Structure

Basic (Bicep - default)

name: <project-name>
metadata:
  template: azd-init

services:
  <service-name>:
    project: <path-to-source>
    language: <python|js|ts|java|dotnet|go>
    host: <containerapp|appservice|function|staticwebapp|aks>

With Terraform Provider

name: <project-name>
metadata:
  template: azd-init

# Specify Terraform as IaC provider
infra:
  provider: terraform
  path: ./infra

services:
  <service-name>:
    project: <path-to-source>
    language: <python|js|ts|java|dotnet|go>
    host: <containerapp|appservice|function|staticwebapp|aks>

💡 Tip: Omit infra section to use Bicep (default). Add infra.provider: terraform to use Terraform. See terraform.md for details.

Host Types

Examples

Container App with Bicep (default)

name: myapp

services:
  api:
    project: ./src/api
    language: python
    host: containerapp
    docker:
      path: ./src/api/Dockerfile

Container App with Terraform

name: myapp

infra:
  provider: terraform
  path: ./infra

services:
  api:
    project: ./src/api
    language: python
    host: containerapp
    docker:
      path: ./src/api/Dockerfile

Container App with Custom Docker Context

When a non-Aspire project has a Dockerfile that expects files relative to a specific directory:

name: myapp

services:
  ginapp:
    project: .
    host: containerapp
    image: ginapp
    docker:
      path: ginapp/Dockerfile
      context: ginapp

💡 Tip: The context field specifies the Docker build context directory. This is crucial for:

• Dockerfiles with COPY commands expecting files relative to a subdirectory
• Multi-service repos where each service has its own context

⚠️ Aspire projects: Do NOT manually add per-service entries with docker.context for Aspire AddDockerfile() resources. Aspire handles container builds at runtime through the AppHost. The generated azure.yaml should contain only a single app service pointing to the AppHost. See aspire.md for details.

⚠️ Language Field: When using the docker section, the language field should be omitted or set to the language that azd will use for framework-specific behaviors. For containerized apps with custom Dockerfiles, the language is not used by azd since the build is handled by Docker. Only include language if you need azd to perform additional framework-specific actions beyond Docker build.

Azure Functions

services:
  functions:
    project: ./src/functions
    language: js
    host: function

Static Web App (with framework build)

For React, Vue, Angular, Next.js, etc. that require npm run build:

services:
  web:
    project: ./src/web     # folder containing package.json
    language: js           # triggers: npm install && npm run build
    host: staticwebapp
    dist: dist             # build output folder (e.g., dist, build, out)

Static Web App (pure HTML/CSS - no build)

For pure HTML sites without a framework build step:

Static files in subfolder (recommended):

services:
  web:
    project: ./src/web     # folder containing index.html
    host: staticwebapp
    dist: .                # works when project != root

Static files in root - requires build script:

⚠️ SWA CLI Limitation: When project: ., you cannot use dist: .. Files must be copied to a separate output folder.

Add a minimal package.json with a build script:

{
  "scripts": {
    "build": "node -e \"require('fs').mkdirSync('public',{recursive:true});require('fs').readdirSync('.').filter(f=>/\\.(html|css|js|png|jpe?g|gif|svg|ico|json|xml|txt|webmanifest|map)$/i.test(f)).forEach(f=>require('fs').copyFileSync(f,'public/'+f))\""
  }
}

Then configure azure.yaml with language: js to trigger the build:

services:
  web:
    project: .
    language: js           # triggers npm install && npm run build
    host: staticwebapp
    dist: public

SWA Project Structure Detection

Key rules:

• dist is relative to project path
• SWA CLI limitation: When project: ., cannot use dist: . - must use a distinct folder
• For static files in root, add package.json with build script to copy files to dist folder
• Use language: js to trigger npm build even for pure static sites in root
• language: html and language: static are NOT valid - will fail

SWA Bicep Requirement

Bicep must include the azd-service-name tag:

resource staticWebApp 'Microsoft.Web/staticSites@2022-09-01' = {
  name: name
  location: location
  tags: union(tags, { 'azd-service-name': 'web' })}

}

### App Service

```yaml
services:
  api:
    project: ./src/api
    language: dotnet
    host: appservice

Hooks (Optional)

hooks:
  preprovision:
    shell: sh
    run: ./scripts/setup.sh
  postprovision:
    shell: sh
    run: ./scripts/seed-data.sh

Valid Values

💡 Docker Context: When docker.context is omitted, azd uses the directory containing the Dockerfile as the build context. Specify context explicitly when the Dockerfile expects files from a different directory.

Output

• ./azure.yaml