requires.py

#!/usr/bin/env python3
# Copyright (C) 2017  Qrama, developed by Tengu-team
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
# pylint: disable=c0111,c0301,c0325, r0903,w0406

from charms.reactive import (
    when_any,
    when_not,
    set_flag,
    clear_flag,
    Endpoint,
)


class SSLTerminationRequires(Endpoint):

    @when_any('endpoint.{endpoint_name}.joined')
    def proxy_joined(self):
        set_flag(self.expand_name('available'))

    @when_not('endpoint.{endpoint_name}.joined')
    def proxy_broken(self):
        clear_flag(self.expand_name('available'))

    @when_any('endpoint.{endpoint_name}.departed',
              'endpoint.{endpoint_name}.changed.status')
    def proxy_changed(self):
        set_flag(self.expand_name('endpoint.{endpoint_name}.update'))
        clear_flag(self.expand_name('endpoint.{endpoint_name}.departed'))
        clear_flag(self.expand_name('endpoint.{endpoint_name}.changed.status'))

    def send_cert_info(self, request):
        """request should be a dict with the following format:
        {
            'fqdn': ['example.com', 'blog.example.com'],
            'contact-email': '',
            'credentials': 'user pass',
            'upstreams': [{
                            'hostname': 'x.x.x.x',
                            'port': 'XXXX'
                         }],
            'nginx-config': ['client_max_body_size: 10G;'],
        }
        """
        for relation in self.relations:
            relation.to_publish['cert-request'] = request

    def get_status(self):
        status = []
        for relation in self.relations:
            for unit in relation.units:
                status.append({
                    'status': unit.received['status'],
                    'remote_unit_name': unit.unit_name
                })
        return status