check.yml

name: CI

on: 
  workflow_dispatch:
  push:
    branches:
      - main

jobs:
  test-docker-pull:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v3

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

    - name: Pull Docker image with timeout and measure speed
      run: |
        echo "Pulling Docker image with timeout..."
        # Set the maximum time (in seconds) for pulling the image
        TIMEOUT_DURATION=5
        IMAGE_NAME=docker.rainbond.cc/library/mysql:5.6

        # Start pulling the image in the background
        (
          docker pull $IMAGE_NAME 2>&1 &
          echo $! > pull_pid.txt
        ) | tee pull_output.log &
        
        PULL_PID=$(cat pull_pid.txt)

        # Wait for the specified duration
        sleep $TIMEOUT_DURATION

        # Kill the docker pull process after the timeout
        kill $PULL_PID

        # Calculate the duration
        START_TIME=$(date +%s -r pull_output.log)
        END_TIME=$(date +%s)
        DURATION=$((END_TIME - START_TIME))

        # Parse the output to find the downloaded size
        DOWNLOADED_SIZE=$(grep -oP 'Downloaded \K[0-9]+(?=MB)' pull_output.log | tail -1)

        # Calculate the average speed (MB/s)
        if [ -n "$DOWNLOADED_SIZE" ] && [ "$DURATION" -gt 0 ]; then
          AVERAGE_SPEED=$(echo "scale=2; $DOWNLOADED_SIZE / $DURATION" | bc)
          echo "Downloaded size: $DOWNLOADED_SIZE MB"
          echo "Duration: $DURATION seconds"
          echo "Average speed: $AVERAGE_SPEED MB/s"

          # Check if the average speed is less than 1 MB/s
          if (( $(echo "$AVERAGE_SPEED < 1" | bc -l) )); then
            echo "Download speed is below 1 MB/s, which is not acceptable."
          else
            echo "Download speed is acceptable."
          fi
        else
          echo "Failed to calculate the average speed."
        fi

    - name: Check Docker images
      run: docker images