ucloud-setup/app/image.py

import click
import subprocess as sp
import os

from app.helper import clone_etcd_wrapper, install_available

@click.group()
def image():
    pass


@image.command("setup")
@click.option("--path", required=True)
@click.option("--base_dir", required=True)
@click.option("--etcd_url", required=True)
@click.option("--without_ceph", default=False, type=bool)
def setup(path, base_dir, etcd_url, without_ceph):
    os.chdir(path)

    repo_name = "ucloud-image-scanner"

    # Clone main repo
    sp.check_output(['git', 'clone', '--single-branch', '--branch', 'wip',
                    f'https://code.ungleich.ch/ungleich-public/{repo_name}.git'])
    
    # Create .env file
    with open(os.path.join(repo_name, ".env"), "w") as f:
        content = (
            f"BASE_DIR={base_dir}\n"
            f"ETCD_URL={etcd_url}\n"
            f"WITHOUT_CEPH={without_ceph}",
            f"VM_PREFIX=/v1/vm\n",
            f"HOST_PREFIX=/v1/host\n",
            f"IMAGE_PREFIX=/v1/image\n",
            f"IMAGE_STORE_PREFIX=/v1/image_store\n",
            f"REQUEST_PREFIX=/v1/request\n",
            f"FILE_PREFIX=/v1/file\n"
        )
        f.writelines(content)
    

    # clone_etcd_wrapper(path=repo_name)
    
    install_available(repo_name)
    
    # Create virtualenv with site-packages enabled and install all dependencies
    sp.check_output(['pipenv','--site-packages', '--python', '3'], cwd=repo_name)
    sp.check_output(['pipenv', 'install'], cwd=repo_name)
    
    # TODO: Devuan/Debian have crontab under /etc/crontab
    #       while Alpine have it  under /etc/crontabs/root
    #       Detect in the following code where should we write
    #       our crontab entries
    
    
    # Write Crontab entry
    with open("/etc/crontabs/root", "a") as crontab:
        crontab.write(
            f"*/1\t*\t*\t*\t*\t$(cd {os.path.join(os.getcwd(), repo_name)} && pipenv run python main.py)\n"
        )