Connect to a remote SSH server with private key in a string, download a bash script and run it with CURL

server_setup.py

def server_setup(server_id: int):
    """Connects to server and runs installation of required software"""
    server = Server.objects.get(pk=server_id)
    server.setup_status = SETUP_STATUS.started
    server.save(update_fields=['setup_status', ])
    rsa_key = server.user.private_key
    print(f"ran server_setup server_id={server_id}")
    setup_command = "curl -sSL https://app.appliku.com/server_api/initial_installation.sh | bash"
    try:
        pkey = paramiko.RSAKey.from_private_key(StringIO(rsa_key))
        client = paramiko.SSHClient()
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        client.connect(server.ip_address, username='root', pkey=pkey, timeout=5)
        stdin, stdout, stderr = client.exec_command(setup_command)
        for line in stdout:
            print('... ' + line.strip('\n'))
        client.close()
        server.setup_status = SETUP_STATUS.finished
        server.save(update_fields=['setup_status', ])
    except:
        server.setup_status = SETUP_STATUS.error
        server.save(update_fields=['setup_status', ])

    return ""