Add GitHub Actions deployment workflow with SSH and Docker Compose

[Copilot]

Implements automated deployment to remote server on push to main branch via SSH, executing Docker Compose build/deploy cycle and image cleanup.

Changes

• .github/workflows/deploy.yml: GitHub Action that SSH into remote server, pulls latest code, runs docker-compose build && docker-compose up -d, and prunes old images (24h+ and dangling)

  • Uses appleboy/ssh-action@v1.0.3 for SSH execution
  • Requires secrets: DEPLOY_HOST, DEPLOY_USER, DEPLOY_SSH_KEY, DEPLOY_PATH, DEPLOY_PORT (optional)
  • Sets permissions: contents: read for minimal GITHUB_TOKEN scope

• docker-compose.yml: Defines Flask service with port 5000, restart policy, and environment variables

• README.md: Documents deployment workflow and required GitHub secrets

Deployment Flow

on:
  push:
    branches: [main]
    
script: |
  cd ${{ secrets.DEPLOY_PATH }}
  git pull origin main
  docker-compose build
  docker-compose up -d
  docker image prune -a -f --filter "until=24h"

Repository owner must configure the five GitHub secrets before workflow activates.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Deploy action auf main</issue_title>
<issue_description>Erstelle eine gh Action, die vie ssh ko,,Amos ausführt:
docker-compose Build, docker-compose up -d auf einem Remote Server ausführt und alte docker images aus diese, context löscht.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Deploy action auf main #5

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