---
title: "4.2 Automated Canary"
chapter: true
draft: false
weight: 30
---
# Automated Canary Analysis 

With all the CD Abstraction pieces out of the way, now it is time to define the **Workflow** which will power the Canary analysis.

Create a new Workflow for the Sample App. 

**Setup -> AWS Canary Lab -> Workflows + Add Workflow**

* **Name:** ***Sample App Canary***
* **Workflow Type:** ***Canary Deployment***
* **Environment:** ***The EKS Cluster***

![Create Sample App Workflow](/images/sample_app_workflow.png)

Once you hit **Submit**, can add a canary phase under “Deployment Phases” with **+ Add Phase**

![Sample App Canary](/images/sample_app_canary.png)

In the Phase definition, select the Sample App Service and your Infrastructure Definition.

![Sample App Add Workflow Phase](/images/sample_app_workflow_phase.png)

Once you click **Submit**, your Canary Phase will be empty. This step will be filling out the Prometheus Details.

![Sample App Canary phase setup](/images/sample_app_canary_setup.png)

In the Verify section, click **+ Add Step**. Search for “prom” as a function to add. 

![Add Prometheus Step](/images/sample_app_workflow_cv_step.png)

Select **Prometheus** and then click **Next**. This is where the Prometheus queries will be entered. 

* **Prometheus Server:** ***EKS Prometheus***
* **Metric Name:** ***normal_call***
* **Metric Type:** ***Throughput***
* **Group Name:** ***custom***
* **Query:** ***io_harness_custom_metric_normal_call{kubernetes_pod_name="$hostName"}***

![Configure Prometheus CV](/images/sample_app_configure_prometheus.png)

Add another metric for Errors with **+ Add**

* **Metric Name:** ***error_call***
* **Metric Type:** ***Error***
* **Group Name:** ***custom***
* **Query:** ***io_harness_custom_metric_error_call{kubernetes_pod_name="$hostName"}***

![Configure Prometheus metric](/images/sample_app_configure_prometheus_metric.png)

Then set the Analysis Time to **5 mins** and Algorithm to Sensitive. 

![Configure Analysis](/images/sample_app_cv_setup.png)

When completed it should look like this. 

![Prometheus Configuration completed](/images/sample_app_configure_prom_complete.png)

Click **Submit** and you now have Prometheus added to analyze the canary. 

![Canary Phase Complete](/images/sample_app_workflow_cv.png)

As a good practice, can automate the removal of the resources if the canary should fail. On the right hand side under Rollback Steps, in the Deploy Phase, **+ Add Step**.

![Configure Rollback](/images/sample_app_workflow_rollback.png)

Search for "**Del**" for the Delete Step.

![Add Delete step to workflow](/images/sample_app_delete_step.png)

Select **Delete**.

* **Resources:** ***${k8s.canaryWorkload}***

![Configure Delete Step](/images/sample_app_workflow_configure_del.png)

Click **Submit** and the final canary should look like this. 

![Completed Sample App Workflow](/images/sample_app_workflow_complete.png)

Now you are ready to deploy your application.