# CertificateAuthorityCollectionResourceExtensions

- Kind: `class`
- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Version: `13.3.0`
- Namespace: `Aspire.Hosting.ApplicationModel`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ApplicationModel/CertificateAuthorityCollectionResourceExtensions.cs)

Provides extension methods for [CertificateAuthorityCollection](/reference/api/csharp/aspire.hosting/certificateauthoritycollection.md).

## Definition

```csharp
namespace Aspire.Hosting.ApplicationModel;

public static class CertificateAuthorityCollectionResourceExtensions
{
    // ...
}
```

## Methods

- [AddCertificateAuthorityCollection(IDistributedApplicationBuilder, string)](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionresourceextensions/methods.md#addcertificateauthoritycollection-idistributedapplicationbuilder-string) : `IResourceBuilder<CertificateAuthorityCollection>` `extension` `ats ignored` -- Adds a new [CertificateAuthorityCollection](/reference/api/csharp/aspire.hosting/certificateauthoritycollection.md) to the application model. This resource is intended for local development run time configuration and is excluded from published artifacts.
- [WithCertificate(IResourceBuilder<CertificateAuthorityCollection>, X509Certificate2)](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionresourceextensions/methods.md#withcertificate-iresourcebuilder-certificateauthoritycollection-x509certificate2) : `IResourceBuilder<CertificateAuthorityCollection>` `extension` `ats ignored` -- Adds a certificate to the [CertificateAuthorityCollection.Certificates](/reference/api/csharp/aspire.hosting/certificateauthoritycollection/properties.md#certificates) collection.
- [WithCertificates(IResourceBuilder<CertificateAuthorityCollection>, X509Certificate2Collection)](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionresourceextensions/methods.md#withcertificates-iresourcebuilder-certificateauthoritycollection-x509certificate2collection) : `IResourceBuilder<CertificateAuthorityCollection>` `extension` `ats ignored` -- Adds a collection of certificates to the [CertificateAuthorityCollection.Certificates](/reference/api/csharp/aspire.hosting/certificateauthoritycollection/properties.md#certificates) collection.
- [WithCertificates(IResourceBuilder<CertificateAuthorityCollection>, IEnumerable<X509Certificate2>)](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionresourceextensions/methods.md#withcertificates-iresourcebuilder-certificateauthoritycollection-ienumerable-x509certificate2) : `IResourceBuilder<CertificateAuthorityCollection>` `extension` `ats ignored` -- Adds a collection of certificates to the [CertificateAuthorityCollection.Certificates](/reference/api/csharp/aspire.hosting/certificateauthoritycollection/properties.md#certificates) collection.
- [WithCertificatesFromFile(IResourceBuilder<CertificateAuthorityCollection>, string, Func<X509Certificate2, bool>)](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionresourceextensions/methods.md#withcertificatesfromfile-iresourcebuilder-certificateauthoritycollection-string-func-x509certificate2-bool) : `IResourceBuilder<CertificateAuthorityCollection>` `extension` `ats ignored` -- Adds certificates from a PEM file to the [CertificateAuthorityCollection.Certificates](/reference/api/csharp/aspire.hosting/certificateauthoritycollection/properties.md#certificates) collection.
- [WithCertificatesFromStore(IResourceBuilder<CertificateAuthorityCollection>, StoreName, StoreLocation, Func<X509Certificate2, bool>)](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionresourceextensions/methods.md#withcertificatesfromstore-iresourcebuilder-certificateauthoritycollection-storename-storelocation-func-x509certificate2-bool) : `IResourceBuilder<CertificateAuthorityCollection>` `extension` `ats ignored` -- Adds certificates from a certificate store to the [CertificateAuthorityCollection.Certificates](/reference/api/csharp/aspire.hosting/certificateauthoritycollection/properties.md#certificates) collection.