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72 lines
2.0 KiB
Python
72 lines
2.0 KiB
Python
9 years ago
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#!/usr/bin/env python
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"""
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Smart docker-entrypoint
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"""
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from subprocess import PIPE
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from subprocess import Popen
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from sys import argv
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from command import Command
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from config import Config
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from jinja2 import Environment
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from jinja2 import FileSystemLoader
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from twiggy import levels
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from twiggy import log
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from twiggy import quickSetup
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class Entrypoint(object):
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"""Entrypoint class."""
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def _set_logguer(self):
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quickSetup(min_level=levels.INFO)
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self.log = log.name('entrypoint')
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def __init__(self, args=[]):
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self._set_logguer()
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try:
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self.config = Config()
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except Exception as err:
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self.log.error(err)
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if self.config.debug:
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quickSetup(min_level=levels.DEBUG)
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self.args = args
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def apply_conf(self):
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env = Environment(loader=FileSystemLoader('/'))
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for template in self.config.config_files:
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temp = env.get_template(template)
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with open(template, mode='w') as f:
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self.log.info('Applying conf to {}'.format(template))
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f.write(temp.render(config=self.config,
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links=self.config.links))
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def run_conf_cmd(self, cmd):
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self.log.info('run command: {}'.format(cmd))
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proc = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)
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out, err = proc.communicate()
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self.log.info(out)
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self.log.warning(err)
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if proc.returncode:
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raise Exception('Command exit code: {}'.format(proc.returncode))
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def launch(self):
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self.args.pop(0)
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command = Command(self.config, self.args)
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command.run()
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if __name__ == '__main__':
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entry = Entrypoint(argv)
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try:
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for cmd in entry.config.pre_conf_commands:
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entry.run_conf_cmd(cmd)
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entry.apply_conf()
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for cmd in entry.config.post_conf_commands:
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entry.run_conf_cmd(cmd)
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entry.launch()
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except Exception as e:
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print(e)
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