# GHA CI/CD Pipeline
## Overview

flowchart TB
    Build(Build Image)
    PublishToGCR(Publish to GCR)
    Deploy2Dev(Deploy to DEV environment)
    Deploy2Test(Deploy to TEST environment)
    Deploy2Prod(Deploy to PROD environment)
    CreateGHRelease(Create GitHub Release)
    
    ON_PR_OPEN -->|Source Code| Build
    ON_PUSH_TO_MAIN -->|Source Code| Build
    Build-->|Image Reference| PublishToGCR
    PublishToGCR --> Deploy2Dev
    Deploy2Dev --> |Deployment Approved| Deploy2Test
    Deploy2Test -->|Deployment Approved| Deploy2Prod
    Deploy2Prod --> CreateGHRelease
    
    Deploy2Dev -.->|Image Reference| deployment
    Deploy2Test -.->|Image Reference| deployment
    Deploy2Prod -.->|Image Reference| deployment
    
    
    
    style Deploy2Test fill:#FFA836,stroke:#333,stroke-width:4px
    style Deploy2Prod fill:#FFA836,stroke:#333,stroke-width:4px
    style CreateGHRelease fill:#FFA836,stroke:#333,stroke-width:4px
    
    subgraph deployment[Deployment Steps]
    direction TB
    PushImageToOpenshiftRegistry["Push Image to RHOCR"]
    TagImage["Create/Update Image Tag"]
    UpdateDeploymentConfig["Update Deployment Config
    with new image reference"]
    ApplyDeploymentConfigChanges(Apply Deployment Config Changes)
    WaitForDeployment(Wait For deployment to finish)
    Notify(Notify Deployment Success/Error status)
    
    PushImageToOpenshiftRegistry --> TagImage
    TagImage --> UpdateDeploymentConfig
    UpdateDeploymentConfig --> ApplyDeploymentConfigChanges
    ApplyDeploymentConfigChanges --> WaitForDeployment
    WaitForDeployment --> Notify
    end

Notes:
- Orange nodes represents a "gated" step

### References
- https://docs.github.com/en/actions/deployment/targeting-different-environments/using-environments-for-deployment#using-an-environment
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