# Automation Flow to Update Services

1. #### Automated Updates and Upgrades 

When a developer pushes the latest updates (e.g., new features, patches, or bug fixes) to the respective branch in the version control system (e.g., Git), it automatically triggers the CI/CD pipeline configured for the customer or MSSP branch.

2. #### Helm Chart and Docker Image Creation

* As part of the CI/CD process, a new Helm chart is generated, and the application is containerized into Docker images.
* The newly created Docker images are pushed to a central container registry (e.g., Docker Hub, private repository) where all service images are stored and versioned.

3. #### Webhook Integration with StackStorm

* A StackStorm webhook is integrated into the container registry. Upon successful image creation and push, the webhook triggers a specific StackStorm workflow that initiates the update process.
* The webhook captures essential metadata, such as image version, and passes them as parameters to the workflow.

4. #### StackStorm Workflow Execution

* The triggered StackStorm workflow fetches the new Docker images and Helm charts from the registry and prepares them for deployment to the Kubernetes cluster.

5. #### Update Deployment to Kubernetes Cluster

* The StackStorm workflow leverages Helm to update the Kubernetes deployments The update process (rolling upgrade) gradually replaces older versions of the pods with new ones, maintaining service availability.

**One more VM needed to automate the deployment process via Stackstorm**

| Feature               | Minimum Specifications Recommended EC2: t2.medium | Recommended Specifications Recommended EC2: m4.xlarge |
| --------------------- | ------------------------------------------------- | ----------------------------------------------------- |
| Operating System (OS) | Ubuntu 20. 04 LTS                                 | Ubuntu 22.04 LTS                                      |
| CPU                   | 2 CPU Core Processor or equivalent                | 4 CPU Core Processor or equivalent                    |
| Memory                | 4 GB RAM                                          | 16 GB RAM                                             |
| Storage               | 20GB                                              | 40GB SSD                                              |
| Network               | 100+ Mbps                                         | 1 Gbps                                                |