> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/continuous-delivery/troubleshooting-and-resources/armory/general/monitored-deploy-rollout.md).

# Monitored Deploy Rollout

### Introduction <a href="#introduction" id="introduction"></a>

Monitored deploy strategy operated like **RollingRedBlack** with the addition that it allows for 3rd party service (**DeploymentMonitor**) to provide input into the progress of the deploy. After every step, Spinnaker will call into the DeploymentMonitor specified in the stage (and configured in `orca.yml`).The DeploymentMonitor can then perform analysis on the newly deployed instances and provide input on whether the deployment should continue or not.

### Prerequisites <a href="#prerequisites" id="prerequisites"></a>

N/A

### Instructions <a href="#instructions" id="instructions"></a>

In order to use this feature, admins must have the config flag enabled as well as manually craft json for the deploy stage. Here is a link from OSS 1.17 when the strategy was introduced that references more of the code. <https://github.com/spinnaker/orca/commit/a1fb5283840caaee01a1bec8824053fcb70e6205>