# 4. Run a new container from the pulled image with restart policy
echo "- Running new container '$CONTAINER_NAME' from image '$IMAGE_NAME'..."
docker run -d \
  -p 8080:8080 \
  --name "$CONTAINER_NAME" \
  --restart unless-stopped \
  "$IMAGE_NAME"

RUN_EXIT_CODE=$? # Capture exit code of 'docker run'

if [ $RUN_EXIT_CODE -eq 0 ]; then
  echo "  ✓ New container '$CONTAINER_NAME' started successfully."
else
  echo "  ✗ ERROR: Failed to run new container '$CONTAINER_NAME' (exit code: $RUN_EXIT_CODE). Please check for errors above."
  exit 1 # Exit script with error code
fi
echo ""

# 5. Verify the container is running
echo "- Verifying container is running..."
if docker ps | grep -q "$CONTAINER_NAME"; then
  echo "  ✓ Container '$CONTAINER_NAME' is running."
else
  echo "  ✗ WARNING: Container '$CONTAINER_NAME' is not running. Check the logs with 'docker logs $CONTAINER_NAME'."
fi
echo ""

echo "--- Docker Container Update Script Completed ---"
echo "Application should now be updated and running in container '$CONTAINER_NAME'."
echo "Access it at http://<your_instance_public_ip_address>:8080"

exit 0 # Exit script with success code

# 4. Run a new container from the pulled image with restart policy
echo "- Running new container '$CONTAINER_NAME' from image '$IMAGE_NAME'..."
docker run -d \
  -p 8080:8080 \
  --name "$CONTAINER_NAME" \
  --restart unless-stopped \
  "$IMAGE_NAME"

RUN_EXIT_CODE=$? # Capture exit code of 'docker run'

if [ $RUN_EXIT_CODE -eq 0 ]; then
  echo "  ✓ New container '$CONTAINER_NAME' started successfully."
else
  echo "  ✗ ERROR: Failed to run new container '$CONTAINER_NAME' (exit code: $RUN_EXIT_CODE). Please check for errors above."
  exit 1 # Exit script with error code
fi
echo ""

# 5. Verify the container is running
echo "- Verifying container is running..."
if docker ps | grep -q "$CONTAINER_NAME"; then
  echo "  ✓ Container '$CONTAINER_NAME' is running."
else
  echo "  ✗ WARNING: Container '$CONTAINER_NAME' is not running. Check the logs with 'docker logs $CONTAINER_NAME'."
fi
echo ""

echo "--- Docker Container Update Script Completed ---"
echo "Application should now be updated and running in container '$CONTAINER_NAME'."
echo "Access it at http://<your_instance_public_ip_address>:8080"

exit 0 # Exit script with success code

#!/bin/bash

# Set variables
CONTAINER_NAME="your-container-name"
IMAGE_NAME="ghcr.io/your-org/your-image:latest"

echo "--- Docker Container Update Script Starting ---"

# 1. Check if Docker is running
echo "- Checking if Docker is running..."
if ! docker info > /dev/null 2>&1; then
  echo "  ✗ ERROR: Docker is not running. Please start Docker and try again."
  exit 1
fi
echo "  ✓ Docker is running."
echo ""

# 2. Stop and remove the existing container (if it exists)
echo "- Stopping and removing existing container '$CONTAINER_NAME' (if it exists)..."
docker stop "$CONTAINER_NAME" > /dev/null 2>&1
docker rm "$CONTAINER_NAME" > /dev/null 2>&1
echo "  ✓ Container '$CONTAINER_NAME' stopped and removed if it existed."
echo ""

# 3. Pull the latest Docker image from GHCR
echo "- Pulling latest Docker image '$IMAGE_NAME' from GHCR..."
docker pull "$IMAGE_NAME"
PULL_EXIT_CODE=$? # Capture exit code of 'docker pull'

if [ $PULL_EXIT_CODE -eq 0 ]; then
  echo "  ✓ Docker image '$IMAGE_NAME' pulled successfully."
else
  echo "  ✗ ERROR: Failed to pull Docker image '$IMAGE_NAME' (exit code: $PULL_EXIT_CODE). Aborting."
  exit 1 # Exit script with error code
fi
echo ""

#!/bin/bash

# Set variables
CONTAINER_NAME="your-container-name"
IMAGE_NAME="ghcr.io/your-org/your-image:latest"

echo "--- Docker Container Update Script Starting ---"

# 1. Check if Docker is running
echo "- Checking if Docker is running..."
if ! docker info > /dev/null 2>&1; then
  echo "  ✗ ERROR: Docker is not running. Please start Docker and try again."
  exit 1
fi
echo "  ✓ Docker is running."
echo ""

# 2. Stop and remove the existing container (if it exists)
echo "- Stopping and removing existing container '$CONTAINER_NAME' (if it exists)..."
docker stop "$CONTAINER_NAME" > /dev/null 2>&1
docker rm "$CONTAINER_NAME" > /dev/null 2>&1
echo "  ✓ Container '$CONTAINER_NAME' stopped and removed if it existed."
echo ""

# 3. Pull the latest Docker image from GHCR
echo "- Pulling latest Docker image '$IMAGE_NAME' from GHCR..."
docker pull "$IMAGE_NAME"
PULL_EXIT_CODE=$? # Capture exit code of 'docker pull'

if [ $PULL_EXIT_CODE -eq 0 ]; then
  echo "  ✓ Docker image '$IMAGE_NAME' pulled successfully."
else
  echo "  ✗ ERROR: Failed to pull Docker image '$IMAGE_NAME' (exit code: $PULL_EXIT_CODE). Aborting."
  exit 1 # Exit script with error code
fi
echo ""