Deploy glances web ui as a service to Ubuntu host

deploy_glances.py

import sys
import subprocess
from subprocess import CompletedProcess
import logging
from typing import List
import tempfile

logging.basicConfig(level=logging.DEBUG, stream=sys.stdout)


def run_cmd(cmd: List[str], shell: bool = False) -> str:
    result: CompletedProcess = subprocess.run(cmd, capture_output=True, shell=shell)
    logging.debug("result: %s", result)
    logging.debug("stdout: %s", result.stdout)
    if result.returncode != 0:
        logging.error("call failed, stderr: %s", result.stderr)
        raise RuntimeError("")
    return result.stdout.decode()


glances_service = """
[Unit]
Description=Glances
After=network.target

[Service]
ExecStart=/usr/local/bin/glances -w
Restart=on-abort
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target
"""


def run() -> int:

    # install python package
    run_cmd(["sudo", "pip3", "install", "glances", "bottle", "psutil"])

    # write service file
    # with open("/etc/systemd/system/glances.service", "w") as fd:
    #     fd.write(glances_service)
    ntf = tempfile.NamedTemporaryFile()
    tmp_file_path = ntf.name
    with open(tmp_file_path, "w") as fd:
        fd.write(glances_service)   
    run_cmd(["sudo", "cp", ntf.name, "/etc/systemd/system/glances.service"])
    ntf.close()

    # enable service
    run_cmd(["sudo", "systemctl", "daemon-reload"])

    run_cmd(["sudo", "systemctl", "enable", "glances.service"])

    # start service
    run_cmd(["sudo", "systemctl", "start", "glances.service"])

    # get service status
    result = run_cmd(["sudo", "systemctl", "status", "glances.service"])

    logging.debug("systemctl status result: \"%s\"", result)

    return 0


if __name__ == "__main__":
    sys.exit(run())

# END OF FILE