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Fixed Azure Workload identity doc #1259

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Fixed Azure Workload identity doc #1259

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18 changes: 12 additions & 6 deletions content/docs/configuration/acme/dns01/azuredns.md
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,8 @@ If you have an Azure AKS cluster you can use the following command:

```bash
az aks update \
--name ${CLUSTER} \
--name "${CLUSTER}" \
--resource-group "${CLUSTER_RG}" \
--enable-oidc-issuer \
--enable-workload-identity # ℹ️ This option is currently only available when using the aks-preview extension.
```
Expand Down Expand Up @@ -92,17 +93,18 @@ Choose a managed identity name and create the Managed Identity:

```bash
export IDENTITY_NAME=cert-manager
az identity create --name "${IDENTITY_NAME}"
export CLUSTER_RESOURCES_RG=$(az aks show --name "${CLUSTER}" --resource-group "${CLUSTER_RG}" --query "nodeResourceGroup" -o tsv)
az identity create --name "${IDENTITY_NAME}" --resource-group "${CLUSTER_RESOURCES_RG}"
```

Grant it permission to modify the DNS zone records:

```bash
export IDENTITY_CLIENT_ID=$(az identity show --name "${IDENTITY_NAME}" --query 'clientId' -o tsv)
export IDENTITY_CLIENT_ID=$(az identity show --name "${IDENTITY_NAME}" --resource-group "${CLUSTER_RESOURCES_RG}" --query 'clientId' -o tsv)
az role assignment create \
--role "DNS Zone Contributor" \
--assignee IDENTITY_CLIENT_ID \
--scope $(az network dns zone show --name $DOMAIN_NAME -o tsv --query id)
--assignee "${IDENTITY_CLIENT_ID}" \
--scope $(az network dns zone show --name "${AZURE_ZONE_NAME}" --resource-group "${AZURE_RESOURCE_GROUP}" -o tsv --query id)
```

> 📖 Read [What are managed identities for Azure resources?](https://learn.microsoft.com/en-us/azure/active-directory/managed-identities-azure-resources/overview)
Expand All @@ -121,10 +123,11 @@ and it will be able to impersonate the managed identity that you created in the
```bash
export SERVICE_ACCOUNT_NAME=cert-manager # ℹ️ This is the default Kubernetes ServiceAccount used by the cert-manager controller.
export SERVICE_ACCOUNT_NAMESPACE=cert-manager # ℹ️ This is the default namespace for cert-manager.
export SERVICE_ACCOUNT_ISSUER=$(az aks show --resource-group $AZURE_DEFAULTS_GROUP --name $CLUSTER --query "oidcIssuerProfile.issuerUrl" -o tsv)
export SERVICE_ACCOUNT_ISSUER=$(az aks show --resource-group "${CLUSTER_RG}" --name "${CLUSTER}" --query "oidcIssuerProfile.issuerUrl" -o tsv)
az identity federated-credential create \
--name "cert-manager" \
--identity-name "${IDENTITY_NAME}" \
--resource-group "${CLUSTER_RESOURCES_RG}" \
--issuer "${SERVICE_ACCOUNT_ISSUER}" \
--subject "system:serviceaccount:${SERVICE_ACCOUNT_NAMESPACE}:${SERVICE_ACCOUNT_NAME}"
```
Expand Down Expand Up @@ -174,6 +177,9 @@ export AZURE_RESOURCE_GROUP=<azure-resource-group>
# The Azure billing account name and ID for the DNS zone.
export AZURE_SUBSCRIPTION=<azure-billing-account-name>
export AZURE_SUBSCRIPTION_ID=$(az account show --name $AZURE_SUBSCRIPTION --query 'id' -o tsv)
# The Azure Kubernetes Services info
export CLUSTER=<cert-manager-aks>
export CLUSTER_RG=<cert-manager-rg>
```

#### ⚠️ Using 'Ambient Credentials' with ClusterIssuer and Issuer resources
Expand Down