What's the best way to set up CD from GitHub Actions?

I have a Django Application running with docker on a droplet.

I have a Redis and an Elastic search service running from docker which I obviously would like to keep the data from instead of just rm the directory. My database is a DO managed instance.

I already have a non-root user setup along with an ssh key on my GitHub for that user.

Is there any documentation on DO or one that you would recommend to set this up?

Here’s my current workflow:

name: CI/CD

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]

jobs:
  CI:
    runs-on: ubuntu-latest
    environment: Django Test
    services:
      elasticsearch:
        image: elasticsearch:7.17.9
        ports:
          - "9200:9200"
        options: -e="discovery.type=single-node" --health-cmd="curl http://localhost:9200/_cluster/health" --health-interval=10s --health-timeout=5s --health-retries=10

      postgres:
        image: postgres:13
        env:
          POSTGRES_USER: postgres
          POSTGRES_DB: postgres
          POSTGRES_PASSWORD: postgres
        ports:
          - 5433:5432
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5

    strategy:
      max-parallel: 4
      matrix:
        python-version: ["3.10"]

    steps:
      - uses: actions/checkout@v3
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v3
        with:
          python-version: ${{ matrix.python-version }}
      - name: Install Dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
      - name: Run Tests
        env:
          SECRET_KEY: ${{ secrets.SECRET_KEY }}
          POSTGRES_NAME: ${{ secrets.POSTGRES_NAME }}
          POSTGRES_USER: ${{ secrets.POSTGRES_USER }}
          POSTGRES_PASSWORD: ${{ secrets.POSTGRES_PASSWORD }}
          POSTGRES_PORT: ${{ secrets.POSTGRES_PORT }}
          DJANGO_SETTINGS_MODULE: ${{ secrets.DJANGO_SETTINGS_MODULE }}
          CELERY_BROKER_URL: ${{ secrets.CELERY_BROKER_URL }}
          YOUTUBE_V3_API_KEY: ${{ secrets.YOUTUBE_V3_API_KEY}}
        run: |
          coverage run manage.py test && coverage report --fail-under=90