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id: 14eebff8-63cc-4d0f-b8ac-c26d486faadc
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# Azure Web App Traffic Routing Issues

Azure Web App Traffic Routing Issues refer to problems that can arise in the routing of traffic to and from web applications hosted on the Azure WebApp. These issues can result from a variety of causes, including misconfigurations, DNS problems, or changes in traffic routing. When traffic routing issues occur, they can impact the availability and performance of web applications, potentially leading to downtime or other disruptions. Timely identification and resolution of these issues is critical to ensure that web applications remain accessible and responsive to users.

### Parameters

```shell
export RESOURCE_GROUP_NAME="PLACEHOLDER"
export WEB_APP_NAME="PLACEHOLDER"
export DNS_ZONE_NAME="PLACEHOLDER"
export SLOT_NAME="PLACEHOLDER"
export TRAFFIC_PERCENT="PLACEHOLDER"
```

## Debug

### Check the status of the Azure Web App

```shell
az webapp show -g ${RESOURCE_GROUP_NAME} -n ${WEB_APP_NAME}
```

### Check the WebApp's SSL bindings

```shell
az webapp config ssl list --resource-group ${RESOURCE_GROUP_NAME}
```

### Check if the web app is using a custom domain name

```shell
az webapp config hostname list --resource-group ${RESOURCE_GROUP_NAME} --webapp-name ${WEB_APP_NAME}
```

### Check the status of the Azure DNS service

```shell
az network dns zone show -g ${RESOURCE_GROUP_NAME} -n ${DNS_ZONE_NAME}
```

### Check the traffic routing settings for the web app

```shell
az webapp traffic-routing show -g ${RESOURCE_GROUP_NAME} -n ${WEB_APP_NAME}
```

## Repair

### Check and Implement routing rules for deployment slots for web app.

```shell
# Define variables
resource_group=${RESOURCE_GROUP_NAME}
web_app_name=${WEB_APP_NAME}
slot_name=${SLOT_NAME}
traffic_percent_to_route=${TRAFFIC_PERCENT}

# Get the current distribution of traffic across the slots
az webapp traffic-routing show --resource-group $resource_group --name $web_app_name

# Clear the routing rules and send all the traffic to production
az webapp traffic-routing clear --resource-group $resource_group --name $web_app_name

# Configure routing traffic to deployment slots
az webapp traffic-routing set --distribution $slot_name=$traffic_percent_to_route --resource-group $resource_group --name $web_app_name
```

Azure Web App Traffic Routing Issues refer to problems that can arise in the routing of traffic to and from web applications hosted on the Azure WebApp. These issues can result from a variety of causes, including misconfigurations, DNS problems, or changes in traffic routing. When traffic routing issues occur, they can impact the availability and performance of web applications, potentially leading to downtime or other disruptions. Timely identification and resolution of these issues is critical to ensure that web applications remain accessible and responsive to users.


```shell
export RESOURCE_GROUP_NAME="PLACEHOLDER"
export WEB_APP_NAME="PLACEHOLDER"
export DNS_ZONE_NAME="PLACEHOLDER"
export SLOT_NAME="PLACEHOLDER"
export TRAFFIC_PERCENT="PLACEHOLDER"
```


### Check the status of the Azure Web App

```shell
az webapp show -g ${RESOURCE_GROUP_NAME} -n ${WEB_APP_NAME}
```

### Check the WebApp's SSL bindings

```shell
az webapp config ssl list --resource-group ${RESOURCE_GROUP_NAME}
```

### Check if the web app is using a custom domain name

```shell
az webapp config hostname list --resource-group ${RESOURCE_GROUP_NAME} --webapp-name ${WEB_APP_NAME}
```

### Check the status of the Azure DNS service

```shell
az network dns zone show -g ${RESOURCE_GROUP_NAME} -n ${DNS_ZONE_NAME}
```

### Check the traffic routing settings for the web app

```shell
az webapp traffic-routing show -g ${RESOURCE_GROUP_NAME} -n ${WEB_APP_NAME}
```


### Check and Implement routing rules for deployment slots for web app.

```shell
# Define variables
resource_group=${RESOURCE_GROUP_NAME}
web_app_name=${WEB_APP_NAME}
slot_name=${SLOT_NAME}
traffic_percent_to_route=${TRAFFIC_PERCENT}

# Get the current distribution of traffic across the slots
az webapp traffic-routing show --resource-group $resource_group --name $web_app_name

# Clear the routing rules and send all the traffic to production
az webapp traffic-routing clear --resource-group $resource_group --name $web_app_name

# Configure routing traffic to deployment slots
az webapp traffic-routing set --distribution $slot_name=$traffic_percent_to_route --resource-group $resource_group --name $web_app_name
```


Azure Web App Traffic Routing Issues

Overview

Parameters

Debug

Check the status of the Azure Web App

Check the WebApp's SSL bindings

Check if the web app is using a custom domain name

Check the status of the Azure DNS service

Check the traffic routing settings for the web app

Repair

Check and Implement routing rules for deployment slots for web app.

Learn more

Related Runbooks

Support