X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=installers%2Fcharm%2Fng-ui%2Fsrc%2Fcharm.py;fp=installers%2Fcharm%2Fng-ui%2Fsrc%2Fcharm.py;h=23d316138153c451595a04b9ad9d3b086173f2a3;hb=081f469ea6358cdd9c6d4c992a7668a2199c8cdc;hp=0000000000000000000000000000000000000000;hpb=18c7a8b4367c8190a19327a421bdfa0ea9b2cb51;p=osm%2Fdevops.git diff --git a/installers/charm/ng-ui/src/charm.py b/installers/charm/ng-ui/src/charm.py new file mode 100755 index 00000000..23d31613 --- /dev/null +++ b/installers/charm/ng-ui/src/charm.py @@ -0,0 +1,148 @@ +#!/usr/bin/env python3 +# Copyright 2020 Canonical Ltd. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import sys +import logging + +sys.path.append("lib") + +from ops.charm import CharmBase +from ops.framework import StoredState, Object +from ops.main import main +from ops.model import ( + ActiveStatus, + MaintenanceStatus, +) + +from glob import glob +from pathlib import Path +from string import Template + +logger = logging.getLogger(__name__) + + +class NGUICharm(CharmBase): + state = StoredState() + + def __init__(self, framework, key): + super().__init__(framework, key) + self.state.set_default(spec=None) + + # Observe Charm related events + self.framework.observe(self.on.config_changed, self.on_config_changed) + self.framework.observe(self.on.start, self.on_start) + self.framework.observe(self.on.upgrade_charm, self.on_upgrade_charm) + # self.framework.observe( + # self.on.nbi_relation_joined, self.on_nbi_relation_joined + # ) + + def _apply_spec(self): + # Only apply the spec if this unit is a leader. + if not self.framework.model.unit.is_leader(): + return + new_spec = self.make_pod_spec() + if new_spec == self.state.spec: + return + self.framework.model.pod.set_spec(new_spec) + self.state.spec = new_spec + + def make_pod_spec(self): + config = self.framework.model.config + + ports = [ + {"name": "port", "containerPort": config["port"], "protocol": "TCP",}, + ] + + kubernetes = { + "readinessProbe": { + "tcpSocket": {"port": config["port"]}, + "timeoutSeconds": 5, + "periodSeconds": 5, + "initialDelaySeconds": 10, + }, + "livenessProbe": { + "tcpSocket": {"port": config["port"]}, + "timeoutSeconds": 5, + "initialDelaySeconds": 45, + }, + } + config_spec = { + "port": config["port"], + "server_name": config["server_name"], + "client_max_body_size": config["client_max_body_size"], + "nbi_hostname": config["nbi_hostname"], + "nbi_port": config["nbi_port"], + } + + files = [ + { + "name": "configuration", + "mountPath": "/etc/nginx/sites-available/", + "files": { + Path(filename) + .name: Template(Path(filename).read_text()) + .substitute(config_spec) + for filename in glob("files/*") + }, + }, + ] + logger.debug(files) + spec = { + "version": 2, + "containers": [ + { + "name": self.framework.model.app.name, + "image": "{}".format(config["image"]), + "ports": ports, + "kubernetes": kubernetes, + "files": files, + } + ], + } + + return spec + + def on_config_changed(self, event): + """Handle changes in configuration""" + unit = self.model.unit + unit.status = MaintenanceStatus("Applying new pod spec") + self._apply_spec() + unit.status = ActiveStatus("Ready") + + def on_start(self, event): + """Called when the charm is being installed""" + unit = self.model.unit + unit.status = MaintenanceStatus("Applying pod spec") + self._apply_spec() + unit.status = ActiveStatus("Ready") + + def on_upgrade_charm(self, event): + """Upgrade the charm.""" + unit = self.model.unit + unit.status = MaintenanceStatus("Upgrading charm") + self.on_start(event) + + # def on_nbi_relation_joined(self, event): + # unit = self.model.unit + # if not unit.is_leader(): + # return + # config = self.framework.model.config + # unit = MaintenanceStatus("Sending connection data") + + # unit = ActiveStatus("Ready") + + +if __name__ == "__main__": + main(NGUICharm)