comparison gcp_batch_netcat.py @ 6:d25792770df8 draft

planemo upload for repository https://github.com/afgane/gcp_batch_netcat commit ece227052d14d755b0d0b07a827152b2e98fb94b-dirty

5:b2ce158b4f22

    format='%(asctime)s - %(levelname)s - %(message)s',
    stream=sys.stdout
)
logger = logging.getLogger(__name__)

def determine_test_target(args):
    """Determine the target host and port based on test type"""

    if args.test_type == 'custom':
        if not args.custom_host:
            raise ValueError("custom_host is required when test_type is 'custom'")
        return args.custom_host, args.custom_port

    elif args.test_type == 'nfs':
        # Extract NFS server address if not provided
        if args.nfs_address:
            nfs_address = args.nfs_address
            logger.info(f"Using provided NFS address: {nfs_address}")
        else:
            try:
                # Try to detect NFS server from /galaxy/server/database/ mount
                import subprocess
                result = subprocess.run(['mount'], capture_output=True, text=True)
                nfs_address = None

                for line in result.stdout.split('\n'):
                    if '/galaxy/server/database' in line and ':' in line:
                        # Look for NFS mount pattern: server:/path on /galaxy/server/database
                        parts = line.split()
                        for part in parts:
                            if ':' in part and part.count(':') == 1:
                                nfs_address = part.split(':')[0]
                                break
                        if nfs_address:
                            logger.info(f"Detected NFS address from mount: {nfs_address}")
                            break

                if not nfs_address:
                    # Fallback: try to parse /proc/mounts
                    try:
                        with open('/proc/mounts', 'r') as f:
                            for line in f:
                                if '/galaxy/server/database' in line and ':' in line:
                                    parts = line.split()
                                    if len(parts) > 0 and ':' in parts[0]:
                                        nfs_address = parts[0].split(':')[0]
                                        logger.info(f"Detected NFS address from /proc/mounts: {nfs_address}")
                                        break
                    except:
                        pass

                if not nfs_address:
                    raise ValueError("Could not auto-detect NFS server address from /galaxy/server/database/ mount")

                logger.info(f"Auto-detected NFS address from mount: {nfs_address}")
            except Exception as e:
                logger.error(f"Failed to auto-detect NFS address: {e}")
                raise
        return nfs_address, 2049

    elif args.test_type == 'galaxy_web':
        # Try to detect Galaxy web service
        try:
            import subprocess
            result = subprocess.run(['kubectl', 'get', 'svc', '-o', 'json'], capture_output=True, text=True)
            if result.returncode == 0:
                services = json.loads(result.stdout)
                for item in services.get('items', []):
                    name = item.get('metadata', {}).get('name', '')
                    if 'galaxy' in name.lower() and ('web' in name.lower() or 'nginx' in name.lower()):
                        # Found a Galaxy web service
                        spec = item.get('spec', {})
                        if spec.get('type') == 'LoadBalancer':
                            ingress = item.get('status', {}).get('loadBalancer', {}).get('ingress', [])
                            if ingress:
                                ip = ingress[0].get('ip')
                                if ip:
                                    port = 80
                                    for port_spec in spec.get('ports', []):
                                        if port_spec.get('port'):
                                            port = port_spec['port']
                                            break
                                    logger.info(f"Found Galaxy web service LoadBalancer: {ip}:{port}")
                                    return ip, port
                        # Fallback to ClusterIP
                        cluster_ip = spec.get('clusterIP')
                        if cluster_ip and cluster_ip != 'None':
                            port = 80
                            for port_spec in spec.get('ports', []):
                                if port_spec.get('port'):
                                    port = port_spec['port']
                                    break
                            logger.info(f"Found Galaxy web service ClusterIP: {cluster_ip}:{port}")
                            return cluster_ip, port
        except Exception as e:
            logger.warning(f"Could not auto-detect Galaxy web service: {e}")

        # Fallback: try common Galaxy service names
        common_hosts = ['galaxy-web', 'galaxy-nginx', 'galaxy']
        logger.info(f"Trying common Galaxy service name: {common_hosts[0]}")
        return common_hosts[0], 80

    elif args.test_type == 'k8s_dns':
        # Test Kubernetes DNS resolution
        return 'kubernetes.default.svc.cluster.local', 443

    elif args.test_type == 'google_dns':
        # Test external connectivity
        return '8.8.8.8', 53

    else:
        raise ValueError(f"Unsupported test type: {args.test_type}")

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--nfs_address', required=False, help='NFS server address (if not provided, will be auto-detected from /galaxy/server/database/ mount)')
    parser.add_argument('--output', required=True)
    parser.add_argument('--project', required=False, help='GCP Project ID (if not provided, will be extracted from service account key)')
    parser.add_argument('--region', required=True)
    parser.add_argument('--network', default='default', help='GCP Network name')
    parser.add_argument('--subnet', default='default', help='GCP Subnet name')
    parser.add_argument('--service_account_key', required=True)
    parser.add_argument('--test_type', default='nfs', choices=['nfs', 'galaxy_web', 'k8s_dns', 'google_dns', 'custom'],
                       help='Type of connectivity test to perform')
    parser.add_argument('--custom_host', required=False, help='Custom host to test (required if test_type is custom)')
    parser.add_argument('--custom_port', type=int, default=80, help='Custom port to test (default: 80)')
    args = parser.parse_args()

    # Set up authentication using the service account key
    os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = args.service_account_key
    logger.info(f"Authentication configured with service account: {args.service_account_key}")

    runnable.container.image_uri = "afgane/gcp-batch-netcat:0.2.0"

    # Create a comprehensive test script
    test_script = f'''#!/bin/bash
set -e
echo "=== GCP Batch Connectivity Test ==="
echo "Test Type: {args.test_type}"
echo "Target: {target_host}:{target_port}"
echo "Timestamp: $(date)"
echo "Container hostname: $(hostname)"
echo ""

    nslookup {target_host} 8.8.8.8 || echo "DNS resolution failed even with Google DNS"
}}
echo ""

# Basic connectivity test
echo "=== Primary Connectivity Test ==="
echo "Testing connection to {target_host}:{target_port}..."
timeout 30 nc -z -v -w 10 {target_host} {target_port}
nc_result=$?
echo "Netcat result: $nc_result"
echo ""

# Additional connectivity tests
echo "=== Additional Connectivity Tests ==="
echo "Testing Google DNS (8.8.8.8:53):"
timeout 10 nc -z -v -w 5 8.8.8.8 53 && echo "✓ External DNS reachable" || echo "✗ External DNS unreachable"

echo "Testing Kubernetes API (if accessible):"
timeout 10 nc -z -v -w 5 kubernetes.default.svc.cluster.local 443 2>/dev/null && echo "✓ Kubernetes API reachable" || echo "✗ Kubernetes API unreachable"

echo ""
echo "=== Network Troubleshooting ==="
echo "Route table:"
ip route
echo ""
echo "ARP table:"
arp -a 2>/dev/null || echo "ARP command not available"
echo ""

echo "=== Final Result ==="
if [ $nc_result -eq 0 ]; then
    echo "✓ SUCCESS: Connection to {target_host}:{target_port} successful"
    exit 0
else
    echo "✗ FAILED: Connection to {target_host}:{target_port} failed"
    echo "This suggests a network connectivity issue between GCP Batch and the target service."
    echo "Common causes:"
    echo "- Firewall rules blocking traffic"
    echo "- Service not accessible from external networks"
    echo "- Target service only accepting internal cluster traffic"
    exit 1
fi
'''

    runnable.container.entrypoint = "/bin/bash"

            f.write(f"Job name: {job_name}\n")
            f.write(f"Job response name: {job_response.name}\n")
            f.write(f"Job UID: {job_response.uid}\n")
            f.write(f"Project: {project_id}\n")
            f.write(f"Region: {args.region}\n")
            f.write(f"Test Type: {args.test_type}\n")
            f.write(f"Target: {target_host}:{target_port}\n")
            f.write(f"\nTo view job logs, run:\n")
            f.write(f"gcloud logging read 'resource.type=gce_instance AND resource.labels.instance_id={job_name}' --project={project_id}\n")

    except Exception as e:
        logger.error(f"Error submitting job: {type(e).__name__}: {e}")

            f.write(f"Error submitting job: {type(e).__name__}: {e}\n")
            f.write(f"Error details: {str(e)}\n")
            f.write(f"Job name: {job_name}\n")
            f.write(f"Project: {project_id}\n")
            f.write(f"Region: {args.region}\n")
            f.write(f"Test Type: {args.test_type}\n")
            f.write(f"Target: {target_host}:{target_port}\n")
            f.write(f"Traceback:\n")
            f.write(traceback.format_exc())

if __name__ == '__main__':
    main()

6:d25792770df8

    format='%(asctime)s - %(levelname)s - %(message)s',
    stream=sys.stdout
)
logger = logging.getLogger(__name__)

def discover_nfs_loadbalancer_ip():
    """
    Try to discover NFS LoadBalancer IP via Kubernetes API
    Returns the external IP if found, None otherwise
    """
    try:
        import subprocess
        logger.info("Attempting to discover NFS LoadBalancer IP via kubectl...")
        result = subprocess.run(['kubectl', 'get', 'svc', '-n', 'nfs-provisioner', '-o', 'json'], capture_output=True, text=True)
        if result.returncode == 0:
            services = json.loads(result.stdout)
            for item in services.get('items', []):
                name = item.get('metadata', {}).get('name', '')
                # Look for NFS-related service names
                if any(keyword in name.lower() for keyword in ['nfs-provisioner-nfs-server-provisioner']):
                    spec = item.get('spec', {})
                    if spec.get('type') == 'LoadBalancer':
                        ingress = item.get('status', {}).get('loadBalancer', {}).get('ingress', [])
                        if ingress:
                            ip = ingress[0].get('ip')
                            if ip:
                                logger.info(f"Found NFS LoadBalancer service '{name}' with external IP: {ip}")
                                return ip
            logger.warning("No NFS LoadBalancer services found via kubectl")
        else:
            logger.warning(f"kubectl command failed: {result.stderr}")
    except Exception as e:
        logger.warning(f"Could not discover NFS LoadBalancer IP via kubectl: {e}")
    return None

def determine_test_target(args):
    """Determine the target host and port based on test type"""

    if args.test_type == 'nfs':
        # Extract NFS server address if not provided
        if args.nfs_address:
            nfs_address = args.nfs_address
            logger.info(f"Using provided NFS address: {nfs_address}")
        else:
            # Try to auto-discover NFS LoadBalancer IP via Kubernetes API
            nfs_address = discover_nfs_loadbalancer_ip()
            if not nfs_address:
                raise ValueError("Could not auto-detect NFS LoadBalancer IP. Please provide --nfs_address parameter with the LoadBalancer external IP.")
        return nfs_address, 2049

    else:
        raise ValueError(f"Unsupported test type: {args.test_type}")

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--nfs_address', required=False, help='NFS server LoadBalancer IP address (if not provided, will be auto-detected via Kubernetes API)')
    parser.add_argument('--output', required=True)
    parser.add_argument('--project', required=False, help='GCP Project ID (if not provided, will be extracted from service account key)')
    parser.add_argument('--region', required=True)
    parser.add_argument('--network', default='default', help='GCP Network name')
    parser.add_argument('--subnet', default='default', help='GCP Subnet name')
    parser.add_argument('--service_account_key', required=True)
    args = parser.parse_args()

    # Default to NFS test type since that's what this tool is for
    args.test_type = 'nfs'

    # Set up authentication using the service account key
    os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = args.service_account_key
    logger.info(f"Authentication configured with service account: {args.service_account_key}")

    runnable.container.image_uri = "afgane/gcp-batch-netcat:0.2.0"

    # Create a comprehensive test script
    test_script = f'''#!/bin/bash
set -e
echo "=== GCP Batch NFS Connectivity Test ==="
echo "Target: {target_host}:{target_port}"
echo "Timestamp: $(date)"
echo "Container hostname: $(hostname)"
echo ""

    nslookup {target_host} 8.8.8.8 || echo "DNS resolution failed even with Google DNS"
}}
echo ""

# Basic connectivity test
echo "=== Primary NFS Connectivity Test ==="
echo "Testing connection to NFS server {target_host}:{target_port}..."
timeout 30 nc -z -v -w 10 {target_host} {target_port}
nc_result=$?
echo "Netcat result: $nc_result"
echo ""

# Additional connectivity tests
echo "=== Additional Connectivity Tests ==="
echo "Testing external connectivity (Google DNS 8.8.8.8:53):"
timeout 10 nc -z -v -w 5 8.8.8.8 53 && echo "✓ External DNS reachable" || echo "✗ External DNS unreachable"

echo ""
echo "=== Network Troubleshooting ==="
echo "Route table:"
ip route
echo ""

echo "=== Final Result ==="
if [ $nc_result -eq 0 ]; then
    echo "✓ SUCCESS: Connection to NFS server {target_host}:{target_port} successful"
    exit 0
else
    echo "✗ FAILED: Connection to NFS server {target_host}:{target_port} failed"
    echo "This suggests a network connectivity issue between GCP Batch and the NFS server."
    echo "Common causes:"
    echo "- Firewall rules blocking NFS traffic (port 2049)"
    echo "- NFS service not accessible from external networks (only ClusterIP)"
    echo "- NFS server not properly exposed via LoadBalancer"
    echo ""
    echo "Solutions:"
    echo "- Ensure NFS service has type LoadBalancer with external IP"
    echo "- Check GCP firewall rules allow traffic from Batch subnet to NFS"
    echo "- Verify the IP address is the LoadBalancer external IP, not ClusterIP"
    exit 1
fi
'''

    runnable.container.entrypoint = "/bin/bash"

            f.write(f"Job name: {job_name}\n")
            f.write(f"Job response name: {job_response.name}\n")
            f.write(f"Job UID: {job_response.uid}\n")
            f.write(f"Project: {project_id}\n")
            f.write(f"Region: {args.region}\n")
            f.write(f"NFS Target: {target_host}:{target_port}\n")
            f.write(f"\nTo view job logs, run:\n")
            f.write(f"gcloud logging read 'resource.type=gce_instance AND resource.labels.instance_id={job_name}' --project={project_id}\n")

    except Exception as e:
        logger.error(f"Error submitting job: {type(e).__name__}: {e}")

            f.write(f"Error submitting job: {type(e).__name__}: {e}\n")
            f.write(f"Error details: {str(e)}\n")
            f.write(f"Job name: {job_name}\n")
            f.write(f"Project: {project_id}\n")
            f.write(f"Region: {args.region}\n")
            f.write(f"NFS Target: {target_host}:{target_port}\n")
            f.write(f"Traceback:\n")
            f.write(traceback.format_exc())

if __name__ == '__main__':
    main()