Enable Azure OIDC for Azure DevOps Respository

- Add a new provider field to GitRepository API spec which can be set to azure to enable passwordless authentication to Azure DevOps repositories.

- API docs for new provider field and guidance to setup Azure environment with workload identity.

- Controller changes to set the provider options in git authoptions to fetch credential while cloning the repository.

- Add unit tests for testing provider

Signed-off-by: Dipti Pai <[email protected]>

Author: dipti-pai

api/v1/gitrepository_types.go

@@ -27,6 +27,14 @@ import (
 const (
 	// GitRepositoryKind is the string representation of a GitRepository.
 	GitRepositoryKind = "GitRepository"
+
+	// GitProviderGeneric provides support for authentication using
+	// credentials specified in secretRef.
+	GitProviderGeneric string = "generic"
+
+	// GitProviderAzure provides support for authentication to azure
+	// repositories using Managed Identity.
+	GitProviderAzure string = "azure"
 )
 
 const (
@@ -80,6 +88,13 @@ type GitRepositorySpec struct {
 	// +optional
 	SecretRef *meta.LocalObjectReference `json:"secretRef,omitempty"`
 
+	// Provider used for authentication, can be 'azure', 'generic'.
+	// When not specified, defaults to 'generic'.
+	// +kubebuilder:validation:Enum=generic;azure
+	// +kubebuilder:default:=generic
+	// +optional
+	Provider string `json:"provider,omitempty"`
+
 	// Interval at which the GitRepository URL is checked for updates.
 	// This interval is approximate and may be subject to jitter to ensure
 	// efficient use of resources.

config/crd/bases/source.toolkit.fluxcd.io_gitrepositories.yaml

@@ -103,6 +103,15 @@ spec:
                   efficient use of resources.
                 pattern: ^([0-9]+(\.[0-9]+)?(ms|s|m|h))+$
                 type: string
+              provider:
+                default: generic
+                description: |-
+                  Provider used for authentication, can be 'azure', 'generic'.
+                  When not specified, defaults to 'generic'.
+                enum:
+                - generic
+                - azure
+                type: string
               proxySecretRef:
                 description: |-
                   ProxySecretRef specifies the Secret containing the proxy configuration

docs/api/v1/source.md

@@ -383,6 +383,19 @@ and &lsquo;known_hosts&rsquo; fields.</p>
 </tr>
 <tr>
 <td>
+<code>provider</code><br>
+<em>
+string
+</em>
+</td>
+<td>
+<em>(Optional)</em>
+<p>Provider used for authentication, can be &lsquo;azure&rsquo;, &lsquo;generic&rsquo;.
+When not specified, defaults to &lsquo;generic&rsquo;.</p>
+</td>
+</tr>
+<tr>
+<td>
 <code>interval</code><br>
 <em>
 <a href="https://pkg.go.dev/k8s.io/apimachinery/pkg/apis/meta/v1#Duration">
@@ -1710,6 +1723,19 @@ and &lsquo;known_hosts&rsquo; fields.</p>
 </tr>
 <tr>
 <td>
+<code>provider</code><br>
+<em>
+string
+</em>
+</td>
+<td>
+<em>(Optional)</em>
+<p>Provider used for authentication, can be &lsquo;azure&rsquo;, &lsquo;generic&rsquo;.
+When not specified, defaults to &lsquo;generic&rsquo;.</p>
+</td>
+</tr>
+<tr>
+<td>
 <code>interval</code><br>
 <em>
 <a href="https://pkg.go.dev/k8s.io/apimachinery/pkg/apis/meta/v1#Duration">

docs/spec/v1/gitrepositories.md

@@ -212,6 +212,91 @@ For password-protected SSH private keys, the password must be provided
 via an additional `password` field in the secret. Flux CLI also supports
 this via the `--password` flag.
 
+### Provider
+
+`.spec.provider` is an optional field that allows specifying an OIDC provider
+used for authentication purposes.
+
+Supported options are:
+
+- `generic`
+- `azure`
+
+When provider is not specified, it defaults to `generic` indicating that
+mechanisms using `spec.secretRef` are used for authentication. 
+
+#### Azure
+
+The `azure` provider can be used to authenticate to Azure DevOps repositories
+automatically using Workload Identity. 
+
+##### Pre-requisites
+
+- Ensure that your Azure DevOps Organization is
+  [connected](https://learn.microsoft.com/en-us/azure/devops/organizations/accounts/connect-organization-to-azure-ad?view=azure-devops)
+  to Microsoft Entra.
+- Ensure Workload Identity is properly [set up on your
+  cluster](https://learn.microsoft.com/en-us/azure/aks/workload-identity-deploy-cluster#create-an-aks-cluster).
+
+##### Configure Flux controller
+
+- Create a managed identity to access Azure DevOps. Establish a federated
+  identity credential between the managed identity and the source-controller
+  service account. In the default installation, the source-controller service
+  account is located in the `flux-system` namespace with name
+  `source-controller`. Ensure the federated credential uses the correct
+  namespace and name of the source-controller service account. For more details,
+  please refer to this
+  [guide](https://azure.github.io/azure-workload-identity/docs/quick-start.html#6-establish-federated-identity-credential-between-the-identity-and-the-service-account-issuer--subject).
+
+- Add the managed identity to the Azure DevOps organization as a user. Ensure
+  that the managed identity has the necessary permissions to access the Azure
+  DevOps repository as described
+  [here](https://learn.microsoft.com/en-us/azure/devops/integrate/get-started/authentication/service-principal-managed-identity?view=azure-devops#2-add-and-manage-service-principals-in-an-azure-devops-organization).
+
+- Add the following patch to your bootstrap repository in
+  `flux-system/kustomization.yaml` file:
+
+
+```yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - gotk-components.yaml
+  - gotk-sync.yaml
+patches:
+  - patch: |-
+      apiVersion: v1
+      kind: ServiceAccount
+      metadata:
+        name: source-controller
+        namespace: flux-system
+        annotations:
+          azure.workload.identity/client-id: <AZURE_CLIENT_ID>
+        labels:
+          azure.workload.identity/use: "true"
+  - patch: |-
+      apiVersion: apps/v1
+      kind: Deployment
+      metadata:
+        name: source-controller
+        namespace: flux-system
+        labels:
+          azure.workload.identity/use: "true"
+      spec:
+        template:
+          metadata:
+            labels:
+              azure.workload.identity/use: "true"
+```
+
+**Note:** When azure `provider` is used with `GitRepository`, the `.spec.url`
+must follow this format:
+
+```
+https://dev.azure.com/{your-organization}/{your-project}/_git/{your-repository}
+```
+
 ### Interval
 
 `.spec.interval` is a required field that specifies the interval at which the

go.mod

@@ -16,27 +16,28 @@ require (
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.7.0
 	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.4.0
 	github.com/Masterminds/semver/v3 v3.3.0
-	github.com/cyphar/filepath-securejoin v0.3.1
+	github.com/cyphar/filepath-securejoin v0.3.2
 	github.com/distribution/distribution/v3 v3.0.0-beta.1
 	github.com/docker/cli v27.2.1+incompatible
 	github.com/docker/go-units v0.5.0
 	github.com/elazarl/goproxy v0.0.0-20240909085733-6741dbfc16a1
 	github.com/fluxcd/cli-utils v0.36.0-flux.9
 	github.com/fluxcd/pkg/apis/event v0.10.0
 	github.com/fluxcd/pkg/apis/meta v1.6.0
-	github.com/fluxcd/pkg/git v0.20.0
-	github.com/fluxcd/pkg/git/gogit v0.20.0
-	github.com/fluxcd/pkg/gittestserver v0.13.0
+	github.com/fluxcd/pkg/auth v0.0.1
+	github.com/fluxcd/pkg/git v0.21.0
+	github.com/fluxcd/pkg/git/gogit v0.21.0
+	github.com/fluxcd/pkg/gittestserver v0.13.1
 	github.com/fluxcd/pkg/helmtestserver v0.19.0
 	github.com/fluxcd/pkg/lockedfile v0.3.0
 	github.com/fluxcd/pkg/masktoken v0.4.0
 	github.com/fluxcd/pkg/oci v0.41.0
 	github.com/fluxcd/pkg/runtime v0.49.0
 	github.com/fluxcd/pkg/sourceignore v0.8.0
-	github.com/fluxcd/pkg/ssh v0.14.0
+	github.com/fluxcd/pkg/ssh v0.14.1
 	github.com/fluxcd/pkg/tar v0.8.0
 	github.com/fluxcd/pkg/testserver v0.7.0
-	github.com/fluxcd/pkg/version v0.4.0
+	github.com/fluxcd/pkg/version v0.4.1
 	github.com/fluxcd/source-controller/api v1.3.0
 	github.com/foxcpp/go-mockdns v1.1.0
 	github.com/go-git/go-billy/v5 v5.5.0
@@ -146,7 +147,7 @@ require (
 	github.com/chai2010/gettext-go v1.0.2 // indirect
 	github.com/chrismellard/docker-credential-acr-env v0.0.0-20230304212654-82a0ddb27589 // indirect
 	github.com/clbanning/mxj/v2 v2.7.0 // indirect
-	github.com/cloudflare/circl v1.3.9 // indirect
+	github.com/cloudflare/circl v1.4.0 // indirect
 	github.com/common-nighthawk/go-figure v0.0.0-20210622060536-734e95fb86be // indirect
 	github.com/containerd/containerd v1.7.20 // indirect
 	github.com/containerd/continuity v0.4.3 // indirect
@@ -371,13 +372,13 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
-	golang.org/x/mod v0.20.0 // indirect
-	golang.org/x/net v0.28.0 // indirect
+	golang.org/x/mod v0.21.0 // indirect
+	golang.org/x/net v0.29.0 // indirect
 	golang.org/x/sys v0.25.0 // indirect
 	golang.org/x/term v0.24.0 // indirect
 	golang.org/x/text v0.18.0 // indirect
 	golang.org/x/time v0.6.0 // indirect
-	golang.org/x/tools v0.24.0 // indirect
+	golang.org/x/tools v0.25.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
 	google.golang.org/genproto v0.0.0-20240903143218-8af14fe29dc1 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20240827150818-7e3bb234dfed // indirect

go.sum

@@ -239,8 +239,8 @@ github.com/clbanning/mxj/v2 v2.7.0 h1:WA/La7UGCanFe5NpHF0Q3DNtnCsVoxbPKuyBNHWRyM
 github.com/clbanning/mxj/v2 v2.7.0/go.mod h1:hNiWqW14h+kc+MdF9C6/YoRfjEJoR3ou6tn/Qo+ve2s=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cloudflare/circl v1.3.3/go.mod h1:5XYMA4rFBvNIrhs50XuiBJ15vF2pZn4nnUKZrLbUZFA=
-github.com/cloudflare/circl v1.3.9 h1:QFrlgFYf2Qpi8bSpVPK1HBvWpx16v/1TZivyo7pGuBE=
-github.com/cloudflare/circl v1.3.9/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
+github.com/cloudflare/circl v1.4.0 h1:BV7h5MgrktNzytKmWjpOtdYrf0lkkbF8YMlBGPhJQrY=
+github.com/cloudflare/circl v1.4.0/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/cockroachdb/apd/v3 v3.2.1 h1:U+8j7t0axsIgvQUqthuNm82HIrYXodOV2iWLWtEaIwg=
 github.com/cockroachdb/apd/v3 v3.2.1/go.mod h1:klXJcjp+FffLTHlhIG69tezTDvdP065naDsHzKhYSqc=
@@ -271,8 +271,8 @@ github.com/creack/pty v1.1.19 h1:tUN6H7LWqNx4hQVxomd0CVsDwaDr9gaRQaI4GpSmrsA=
 github.com/creack/pty v1.1.19/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
 github.com/cyberphone/json-canonicalization v0.0.0-20231011164504-785e29786b46 h1:2Dx4IHfC1yHWI12AxQDJM1QbRCDfk6M+blLzlZCXdrc=
 github.com/cyberphone/json-canonicalization v0.0.0-20231011164504-785e29786b46/go.mod h1:uzvlm1mxhHkdfqitSA92i7Se+S9ksOn3a3qmv/kyOCw=
-github.com/cyphar/filepath-securejoin v0.3.1 h1:1V7cHiaW+C+39wEfpH6XlLBQo3j/PciWFrgfCLS8XrE=
-github.com/cyphar/filepath-securejoin v0.3.1/go.mod h1:F7i41x/9cBF7lzCrVsYs9fuzwRZm4NQsGTBdpp6mETc=
+github.com/cyphar/filepath-securejoin v0.3.2 h1:QhZu5AxQ+o1XZH0Ye05YzvJ0kAdK6VQc0z9NNMek7gc=
+github.com/cyphar/filepath-securejoin v0.3.2/go.mod h1:F7i41x/9cBF7lzCrVsYs9fuzwRZm4NQsGTBdpp6mETc=
 github.com/danieljoos/wincred v1.2.1 h1:dl9cBrupW8+r5250DYkYxocLeZ1Y4vB1kxgtjxw8GQs=
 github.com/danieljoos/wincred v1.2.1/go.mod h1:uGaFL9fDn3OLTvzCGulzE+SzjEe5NGlh5FdCcyfPwps=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -348,14 +348,16 @@ github.com/fluxcd/pkg/apis/event v0.10.0 h1:eMYXjMnLQ9jctPkTauuiBmEI127RjCKDf1zf
 github.com/fluxcd/pkg/apis/event v0.10.0/go.mod h1:pG/3gbSBLNy6YGZP2eajiyVgkEQDvva789t46PY6NFE=
 github.com/fluxcd/pkg/apis/meta v1.6.0 h1:93TcRpiph0OCoQh+cI+PM7E35kBW9dScuas9tWc90Dw=
 github.com/fluxcd/pkg/apis/meta v1.6.0/go.mod h1:ZOeHcvyVdZDC5ZOGV7YuwplIvAx6LvmpeyhfTcNZCnc=
+github.com/fluxcd/pkg/auth v0.0.1 h1:3fMg1EdkQdY2Rv1qHbiPPWCBa27xsNeu09y9SuZk6Co=
+github.com/fluxcd/pkg/auth v0.0.1/go.mod h1:tdCkiB3/LBg7CcxX1fhVmM5ZjDIaOduK0XX88pBXie0=
 github.com/fluxcd/pkg/cache v0.0.3 h1:VK5joG/p+amh5Ob+r1OFOx0cCYiswEf8mX1/J1BG7Mw=
 github.com/fluxcd/pkg/cache v0.0.3/go.mod h1:UU6oFhV+mG0A5/RwIlvXhyuKlJwQEkk92jVB3vKMLtk=
-github.com/fluxcd/pkg/git v0.20.0 h1:byUbxLLZ9AyVYmK16mvxY/iA/ZhNwA30GHKPKNh7pik=
-github.com/fluxcd/pkg/git v0.20.0/go.mod h1:YnBOFhX7zzyVjg/u1Et1xBqXs30kb2sWWesIl3/glhw=
-github.com/fluxcd/pkg/git/gogit v0.20.0 h1:ZlWq//I465lv9aEEWaJhjJaTiTtnjcH+Td0fg1rPXWU=
-github.com/fluxcd/pkg/git/gogit v0.20.0/go.mod h1:ZA4WsKr28cj1yuplxOw9vHgCL4OCNJJLib1cJ77Tp9o=
-github.com/fluxcd/pkg/gittestserver v0.13.0 h1:6rvD9Z7+4zBcNT+LK0z4H0z6mDaw1Zd8ZaLh/dw8dzI=
-github.com/fluxcd/pkg/gittestserver v0.13.0/go.mod h1:LDw32Wo9mTmKNmJq4g7LRVBqPXlpMIWFBDOrRRh/+As=
+github.com/fluxcd/pkg/git v0.21.0 h1:5FfcKj9bDVz8KwoOQUOSJABLMeSdhvLBf7yctwwuMzc=
+github.com/fluxcd/pkg/git v0.21.0/go.mod h1:iCCmUCunoFLgntySJfIDxsHGYfS97ky990gEKIDZ9lo=
+github.com/fluxcd/pkg/git/gogit v0.21.0 h1:iR2kzW1XrcBDYuC8zVIAdC/2/aeXuRkZ9jupdd54E6I=
+github.com/fluxcd/pkg/git/gogit v0.21.0/go.mod h1:gyoSlEIqzsOiTwSL0iFuEiJat+W0uGgc+WEiCVC1xk8=
+github.com/fluxcd/pkg/gittestserver v0.13.1 h1:5rXF8ANlk6wtAsvqH7tI7gaO2zhMySftf7ALh0AhfU4=
+github.com/fluxcd/pkg/gittestserver v0.13.1/go.mod h1:nPO7ibtBRgLWFHTSvxI63zZubJXU82cVMH6nViVnHsY=
 github.com/fluxcd/pkg/helmtestserver v0.19.0 h1:DbidD46we8iLp/Sxn2TO8twtlP5gxFQaP3XTNJC0bl8=
 github.com/fluxcd/pkg/helmtestserver v0.19.0/go.mod h1:BhP2n8VMh+HnikYg9XEpzd2+pMQKemT9pBYg3SKCOxE=
 github.com/fluxcd/pkg/lockedfile v0.3.0 h1:tZkBAffcxyt4zMigHIKc54cKgN5I/kFF005gyWZdyds=
@@ -368,14 +370,14 @@ github.com/fluxcd/pkg/runtime v0.49.0 h1:XldsD4C2TsfuIgku3NEQYCXFLZWDau22YqClTGU
 github.com/fluxcd/pkg/runtime v0.49.0/go.mod h1:0JYsoNhrBtBC4mKAuZdfrkfIqsVGAXKM/A234HuNSnk=
 github.com/fluxcd/pkg/sourceignore v0.8.0 h1:oHQZ0Fnk88T7EQKfUshgZ4MULVKlt/AbW4C8Chmrrx4=
 github.com/fluxcd/pkg/sourceignore v0.8.0/go.mod h1:6dYIHKdlaATjY/e32EDabfyx0m89ObvlYQesJQoPPOc=
-github.com/fluxcd/pkg/ssh v0.14.0 h1:rkcUwEZiwNoHq8oGOf/THV5sf9LBbXOoJgOt+6+bU34=
-github.com/fluxcd/pkg/ssh v0.14.0/go.mod h1:1USgRvaaayJfzybQaCIAUn2e8LPsLe601Rec7Y8KQQE=
+github.com/fluxcd/pkg/ssh v0.14.1 h1:C/RBDch6cxAqQtaOohcasSAeGfZznNEeZtvpfI+hXQY=
+github.com/fluxcd/pkg/ssh v0.14.1/go.mod h1:HsVzHyF7CkfTnjtLEI6XK+8tfyWqwI1TPxJ34HcMg2o=
 github.com/fluxcd/pkg/tar v0.8.0 h1:YcEW7K40/XM8o+bkU23dceWtxdaKUpsKcsppLSp8QWc=
 github.com/fluxcd/pkg/tar v0.8.0/go.mod h1:O0WUC+nUIw7Cnw1h/4V310kLvzW4tvacD/VZTJtGBUM=
 github.com/fluxcd/pkg/testserver v0.7.0 h1:kNVAn+3bAF2rfR9cT6SxzgEz2o84i+o7zKY3XRKTXmk=
 github.com/fluxcd/pkg/testserver v0.7.0/go.mod h1:Ih5IK3Y5G3+a6c77BTqFkdPDCY1Yj1A1W5cXQqkCs9s=
-github.com/fluxcd/pkg/version v0.4.0 h1:3F6oeIZ+ug/f7pALIBhcUhfURel37EPPOn7nsGfsnOg=
-github.com/fluxcd/pkg/version v0.4.0/go.mod h1:izVsSDxac81qWRmpOL9qcxZYx+zAN1ajoP5SidGP6PA=
+github.com/fluxcd/pkg/version v0.4.1 h1:xnw+cu+GRcQSBTejcGiigYpipszO4Cn5UUGpAHVN4F0=
+github.com/fluxcd/pkg/version v0.4.1/go.mod h1:hO3ul44vTFFrosekcnrpxoPaM4cLbET4Fc/LR6pz4YQ=
 github.com/foxcpp/go-mockdns v1.1.0 h1:jI0rD8M0wuYAxL7r/ynTrCQQq0BVqfB99Vgk7DlmewI=
 github.com/foxcpp/go-mockdns v1.1.0/go.mod h1:IhLeSFGed3mJIAXPH2aiRQB+kqz7oqu8ld2qVbOu7Wk=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
@@ -1093,8 +1095,8 @@ golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.14.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/mod v0.20.0 h1:utOm6MM3R3dnawAiJgn0y+xvuYRsm1RKM/4giyfDgV0=
-golang.org/x/mod v0.20.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
+golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1128,8 +1130,8 @@ golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/net v0.18.0/go.mod h1:/czyP5RqHAH4odGYxBJ1qz0+CE5WZ+2j1YgoEo8F2jQ=
 golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
 golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
-golang.org/x/net v0.28.0 h1:a9JDOJc5GMUJ0+UDqmLT86WiEy7iWyIhz8gz8E4e5hE=
-golang.org/x/net v0.28.0/go.mod h1:yqtgsTWOOnlGLG9GFRrK3++bGOUEkNBoHZc8MEDWPNg=
+golang.org/x/net v0.29.0 h1:5ORfpBpCs4HzDYoodCDBbwHzdR5UrLBZ3sOnUJmFoHo=
+golang.org/x/net v0.29.0/go.mod h1:gLkgy8jTGERgjzMic6DS9+SP0ajcu6Xu3Orq/SpETg0=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.23.0 h1:PbgcYx2W7i4LvjJWEbf0ngHV6qJYr86PkAV3bXdLEbs=
 golang.org/x/oauth2 v0.23.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
@@ -1233,8 +1235,8 @@ golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/tools v0.15.0/go.mod h1:hpksKq4dtpQWS1uQ61JkdqWM3LscIS6Slf+VVkm+wQk=
-golang.org/x/tools v0.24.0 h1:J1shsA93PJUEVaUSaay7UXAyE8aimq3GW0pjlolpa24=
-golang.org/x/tools v0.24.0/go.mod h1:YhNqVBIfWHdzvTLs0d8LCuMhkKUgSUKldakyV7W/WDQ=
+golang.org/x/tools v0.25.0 h1:oFU9pkj/iJgs+0DT+VMHrx+oBKs/LJMV+Uvg78sl+fE=
+golang.org/x/tools v0.25.0/go.mod h1:/vtpO8WL1N9cQC3FN5zPqb//fRXskFHbLKk4OW1Q7rg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/controller/gitrepository_controller.go

@@ -27,6 +27,7 @@ import (
 	"time"
 
 	securejoin "github.com/cyphar/filepath-securejoin"
+	"github.com/fluxcd/pkg/auth/azure"
 	"github.com/fluxcd/pkg/runtime/logger"
 	"github.com/go-git/go-git/v5/plumbing/transport"
 	corev1 "k8s.io/api/core/v1"
@@ -647,6 +648,19 @@ func (r *GitRepositoryReconciler) getAuthOpts(ctx context.Context, obj *sourcev1
 	if err != nil {
 		return nil, err
 	}
+
+	// Configure provider authentication if specified in spec
+	if obj.Spec.Provider != "" && obj.Spec.Provider != sourcev1.GitProviderGeneric {
+		if obj.Spec.Provider == sourcev1.GitProviderAzure {
+			authOpts.ProviderOpts = &git.ProviderOptions{
+				Name: obj.Spec.Provider,
+				AzureOpts: []azure.OptFunc{
+					azure.WithAzureDevOpsScope(),
+				},
+			}
+		}
+	}
+
 	return authOpts, nil
 }