Azure web app stop shuts down the application. It checks whether the requests have been re-routed to another instance on the application service.
Azure web app stop
- Determines the resilience of a web application to unplanned halts (or stops).
- Determines the resilience based on how quickly and efficiently the application recovers from the failure by re-routing the traffic to a different instance on the same application service.
- Kubernetes > 1.16 is required to execute this fault.
- Appropriate Azure access to start and stop the web applications.
- The target Azure web application should be in the running state.
- Use Azure file-based authentication to connect to the instance using Azure GO SDK. To generate the auth file, run
az ad sp create-for-rbac --sdk-auth > azure.authAzure CLI command.
- Kubernetes secret should contain the auth file created in the previous step in the
CHAOS_NAMESPACE. Below is a sample secret file:
- If you change the secret key name from
azure.authto a new name, ensure that you update the
AZURE_AUTH_LOCATIONenvironment variable in the chaos experiment with the new name.
|AZURE_WEB_APP_NAMES||Name of the Azure web application services to target.||Comma-separated names of web applications. For more information, go to stop Azure web app by name.|
|RESOURCE_GROUP||Name of the resource group for the target web applications.||All the web applications must belong to the same resource group. For more information, go to resource group field in the YAML file.|
|TOTAL_CHAOS_DURATION||Duration that you specify, through which chaos is injected into the target resource (in seconds).||Defaults to 30s. For more information, go to duration of the chaos.|
|CHAOS_INTERVAL||Time interval between two successive instance power offs (in seconds).||Defaults to 30s. For more information, go to chaos interval.|
|SEQUENCE||Sequence of chaos execution for multiple instances.|| Defaults to |
|RAMP_TIME||Period to wait before and after injecting chaos (in seconds).||For example, 30s. For more information, go to ramp time.|
Stop web application by name
It specifies a comma-separated list of web application names subject to chaos. Tune it by using the
AZURE_WEB_APP_NAMES environment variable.
Use the following example to tune it:
# stop web app for a certain chaos duration
- name: azure-web-app-stop
# comma-separated names of the Azure web app
- name: AZURE_WEB_APP_NAMES
# name of the resource group
- name: RESOURCE_GROUP
- name: TOTAL_CHAOS_DURATION