X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=installers%2Fcharm%2Flcm%2Fsrc%2Fcharm.py;h=270a5479a837a791859d2f2143eb5e71c5afb030;hb=49379ced23b5e344a773ce77ac9cb59c1864e19b;hp=d65bdcfa35c8be6c5ebb4383de6c59bb06597ef8;hpb=abe7321ec4e652cdb0f359169788a6c8ac9295f8;p=osm%2Fdevops.git diff --git a/installers/charm/lcm/src/charm.py b/installers/charm/lcm/src/charm.py index d65bdcfa..270a5479 100755 --- a/installers/charm/lcm/src/charm.py +++ b/installers/charm/lcm/src/charm.py @@ -1,5 +1,5 @@ #!/usr/bin/env python3 -# Copyright 2020 Canonical Ltd. +# Copyright 2021 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 @@ -20,259 +20,371 @@ # osm-charmers@lists.launchpad.net ## +# pylint: disable=E0213 + + import logging -from pydantic import ValidationError -from typing import Any, Dict, NoReturn +from typing import Optional, NoReturn -from ops.charm import CharmBase, CharmEvents -from ops.framework import EventBase, EventSource, StoredState from ops.main import main -from ops.model import ActiveStatus, BlockedStatus, MaintenanceStatus -from oci_image import OCIImageResource, OCIImageResourceError -from pod_spec import make_pod_spec +from opslib.osm.charm import CharmedOsmBase, RelationsMissing -logger = logging.getLogger(__name__) +from opslib.osm.pod import ( + ContainerV3Builder, + PodSpecV3Builder, +) -LCM_PORT = 9999 +from opslib.osm.validator import ( + ModelValidator, + validator, +) +from opslib.osm.interfaces.kafka import KafkaClient +from opslib.osm.interfaces.mongo import MongoClient +from opslib.osm.interfaces.http import HttpClient -class ConfigurePodEvent(EventBase): - """Configure Pod event""" - - pass +logger = logging.getLogger(__name__) -class LcmEvents(CharmEvents): - """LCM Events""" +PORT = 9999 - configure_pod = EventSource(ConfigurePodEvent) +class ConfigModel(ModelValidator): + vca_host: str + vca_port: int + vca_user: str + vca_password: str + vca_pubkey: str + vca_cacert: str + vca_cloud: str + vca_k8s_cloud: str + database_commonkey: str + log_level: str + vca_apiproxy: Optional[str] -class LcmCharm(CharmBase): - """LCM Charm.""" + @validator("log_level") + def validate_log_level(cls, v): + if v not in {"INFO", "DEBUG"}: + raise ValueError("value must be INFO or DEBUG") + return v - state = StoredState() - on = LcmEvents() +class LcmCharm(CharmedOsmBase): def __init__(self, *args) -> NoReturn: - """LCM Charm constructor.""" - super().__init__(*args) + super().__init__(*args, oci_image="image") + + self.kafka_client = KafkaClient(self, "kafka") + self.framework.observe(self.on["kafka"].relation_changed, self.configure_pod) + self.framework.observe(self.on["kafka"].relation_broken, self.configure_pod) + + self.mongodb_client = MongoClient(self, "mongodb") + self.framework.observe(self.on["mongodb"].relation_changed, self.configure_pod) + self.framework.observe(self.on["mongodb"].relation_broken, self.configure_pod) + + self.ro_client = HttpClient(self, "ro") + self.framework.observe(self.on["ro"].relation_changed, self.configure_pod) + self.framework.observe(self.on["ro"].relation_broken, self.configure_pod) + + def _check_missing_dependencies(self, config: ConfigModel): + missing_relations = [] + + if self.kafka_client.is_missing_data_in_unit(): + missing_relations.append("kafka") + if self.mongodb_client.is_missing_data_in_unit(): + missing_relations.append("mongodb") + if self.ro_client.is_missing_data_in_app(): + missing_relations.append("ro") + + if missing_relations: + raise RelationsMissing(missing_relations) + + def build_pod_spec(self, image_info): + # Validate config + config = ConfigModel(**dict(self.config)) + # Check relations + self._check_missing_dependencies(config) + # Create Builder for the PodSpec + pod_spec_builder = PodSpecV3Builder() + # Build Container + container_builder = ContainerV3Builder(self.app.name, image_info) + container_builder.add_port(name=self.app.name, port=PORT) + container_builder.add_envs( + { + # General configuration + "ALLOW_ANONYMOUS_LOGIN": "yes", + "OSMLCM_GLOBAL_LOGLEVEL": config.log_level, + # RO configuration + "OSMLCM_RO_HOST": self.ro_client.host, + "OSMLCM_RO_PORT": self.ro_client.port, + "OSMLCM_RO_TENANT": "osm", + # Kafka configuration + "OSMLCM_MESSAGE_DRIVER": "kafka", + "OSMLCM_MESSAGE_HOST": self.kafka_client.host, + "OSMLCM_MESSAGE_PORT": self.kafka_client.port, + # Database configuration + "OSMLCM_DATABASE_DRIVER": "mongo", + "OSMLCM_DATABASE_URI": self.mongodb_client.connection_string, + "OSMLCM_DATABASE_COMMONKEY": config.database_commonkey, + # Storage configuration + "OSMLCM_STORAGE_DRIVER": "mongo", + "OSMLCM_STORAGE_PATH": "/app/storage", + "OSMLCM_STORAGE_COLLECTION": "files", + "OSMLCM_STORAGE_URI": self.mongodb_client.connection_string, + # VCA configuration + "OSMLCM_VCA_HOST": config.vca_host, + "OSMLCM_VCA_PORT": config.vca_port, + "OSMLCM_VCA_USER": config.vca_user, + "OSMLCM_VCA_PUBKEY": config.vca_pubkey, + "OSMLCM_VCA_SECRET": config.vca_password, + "OSMLCM_VCA_CACERT": config.vca_cacert, + "OSMLCM_VCA_CLOUD": config.vca_cloud, + "OSMLCM_VCA_K8S_CLOUD": config.vca_k8s_cloud, + } + ) + if config.vca_apiproxy: + container_builder.add_env("OSMLCM_VCA_APIPROXY", config.vca_apiproxy) - # Internal state initialization - self.state.set_default(pod_spec=None) + container = container_builder.build() + # Add container to pod spec + pod_spec_builder.add_container(container) + return pod_spec_builder.build() - # Message bus data initialization - self.state.set_default(message_host=None) - self.state.set_default(message_port=None) - # Database data initialization - self.state.set_default(database_uri=None) +if __name__ == "__main__": + main(LcmCharm) - # RO data initialization - self.state.set_default(ro_host=None) - self.state.set_default(ro_port=None) - self.port = LCM_PORT - self.image = OCIImageResource(self, "image") +# class ConfigurePodEvent(EventBase): +# """Configure Pod event""" - # Registering regular events - self.framework.observe(self.on.start, self.configure_pod) - self.framework.observe(self.on.config_changed, self.configure_pod) - self.framework.observe(self.on.upgrade_charm, self.configure_pod) +# pass - # Registering custom internal events - self.framework.observe(self.on.configure_pod, self.configure_pod) - # Registering required relation events - self.framework.observe( - self.on.kafka_relation_changed, self._on_kafka_relation_changed - ) - self.framework.observe( - self.on.mongodb_relation_changed, self._on_mongodb_relation_changed - ) - self.framework.observe( - self.on.ro_relation_changed, self._on_ro_relation_changed - ) - - # Registering required relation departed events - self.framework.observe( - self.on.kafka_relation_departed, self._on_kafka_relation_departed - ) - self.framework.observe( - self.on.mongodb_relation_departed, self._on_mongodb_relation_departed - ) - self.framework.observe( - self.on.ro_relation_departed, self._on_ro_relation_departed - ) +# class LcmEvents(CharmEvents): +# """LCM Events""" + +# configure_pod = EventSource(ConfigurePodEvent) + - def _on_kafka_relation_changed(self, event: EventBase) -> NoReturn: - """Reads information about the kafka relation. - - Args: - event (EventBase): Kafka relation event. - """ - data_loc = event.unit if event.unit else event.app - - message_host = event.relation.data[data_loc].get("host") - message_port = event.relation.data[data_loc].get("port") - - if ( - message_host - and message_port - and ( - self.state.message_host != message_host - or self.state.message_port != message_port - ) - ): - self.state.message_host = message_host - self.state.message_port = message_port - self.on.configure_pod.emit() - - def _on_kafka_relation_departed(self, event: EventBase) -> NoReturn: - """Clears data from kafka relation. - - Args: - event (EventBase): Kafka relation event. - """ - self.state.message_host = None - self.state.message_port = None - self.on.configure_pod.emit() - - def _on_mongodb_relation_changed(self, event: EventBase) -> NoReturn: - """Reads information about the DB relation. - - Args: - event (EventBase): DB relation event. - """ - data_loc = event.unit if event.unit else event.app - - database_uri = event.relation.data[data_loc].get("connection_string") - - if database_uri and self.state.database_uri != database_uri: - self.state.database_uri = database_uri - self.on.configure_pod.emit() - - def _on_mongodb_relation_departed(self, event: EventBase) -> NoReturn: - """Clears data from mongodb relation. - - Args: - event (EventBase): DB relation event. - """ - self.state.database_uri = None - self.on.configure_pod.emit() - - def _on_ro_relation_changed(self, event: EventBase) -> NoReturn: - """Reads information about the RO relation. - - Args: - event (EventBase): Keystone relation event. - """ - data_loc = event.unit if event.unit else event.app - - ro_host = event.relation.data[data_loc].get("host") - ro_port = event.relation.data[data_loc].get("port") - - if ( - ro_host - and ro_port - and (self.state.ro_host != ro_host or self.state.ro_port != ro_port) - ): - self.state.ro_host = ro_host - self.state.ro_port = ro_port - self.on.configure_pod.emit() - - def _on_ro_relation_departed(self, event: EventBase) -> NoReturn: - """Clears data from ro relation. - - Args: - event (EventBase): Keystone relation event. - """ - self.state.ro_host = None - self.state.ro_port = None - self.on.configure_pod.emit() - - def _missing_relations(self) -> str: - """Checks if there missing relations. - - Returns: - str: string with missing relations - """ - data_status = { - "kafka": self.state.message_host, - "mongodb": self.state.database_uri, - "ro": self.state.ro_host, - } - - missing_relations = [k for k, v in data_status.items() if not v] - - return ", ".join(missing_relations) - - @property - def relation_state(self) -> Dict[str, Any]: - """Collects relation state configuration for pod spec assembly. - - Returns: - Dict[str, Any]: relation state information. - """ - relation_state = { - "message_host": self.state.message_host, - "message_port": self.state.message_port, - "database_uri": self.state.database_uri, - "ro_host": self.state.ro_host, - "ro_port": self.state.ro_port, - } - - return relation_state - - def configure_pod(self, event: EventBase) -> NoReturn: - """Assemble the pod spec and apply it, if possible. - - Args: - event (EventBase): Hook or Relation event that started the - function. - """ - if missing := self._missing_relations(): - self.unit.status = BlockedStatus( - "Waiting for {0} relation{1}".format( - missing, "s" if "," in missing else "" - ) - ) - return - - if not self.unit.is_leader(): - self.unit.status = ActiveStatus("ready") - return - - self.unit.status = MaintenanceStatus("Assembling pod spec") - - # Fetch image information - try: - self.unit.status = MaintenanceStatus("Fetching image information") - image_info = self.image.fetch() - except OCIImageResourceError: - self.unit.status = BlockedStatus("Error fetching image information") - return - - try: - pod_spec = make_pod_spec( - image_info, - self.model.config, - self.relation_state, - self.model.app.name, - self.port, - ) - except ValidationError as exc: - logger.exception("Config/Relation data validation error") - self.unit.status = BlockedStatus(str(exc)) - return - - if self.state.pod_spec != pod_spec: - self.model.pod.set_spec(pod_spec) - self.state.pod_spec = pod_spec - - self.unit.status = ActiveStatus("ready") +# class LcmCharm(CharmBase): +# """LCM Charm.""" +# state = StoredState() +# on = LcmEvents() + +# def __init__(self, *args) -> NoReturn: +# """LCM Charm constructor.""" +# super().__init__(*args) + +# # Internal state initialization +# self.state.set_default(pod_spec=None) -if __name__ == "__main__": - main(LcmCharm) +# # Message bus data initialization +# self.state.set_default(message_host=None) +# self.state.set_default(message_port=None) + +# # Database data initialization +# self.state.set_default(database_uri=None) + +# # RO data initialization +# self.state.set_default(ro_host=None) +# self.state.set_default(ro_port=None) + +# self.port = LCM_PORT +# self.image = OCIImageResource(self, "image") + +# # Registering regular events +# self.framework.observe(self.on.start, self.configure_pod) +# self.framework.observe(self.on.config_changed, self.configure_pod) +# self.framework.observe(self.on.upgrade_charm, self.configure_pod) + +# # Registering custom internal events +# self.framework.observe(self.on.configure_pod, self.configure_pod) + +# # Registering required relation events +# self.framework.observe( +# self.on.kafka_relation_changed, self._on_kafka_relation_changed +# ) +# self.framework.observe( +# self.on.mongodb_relation_changed, self._on_mongodb_relation_changed +# ) +# self.framework.observe( +# self.on.ro_relation_changed, self._on_ro_relation_changed +# ) + +# # Registering required relation broken events +# self.framework.observe( +# self.on.kafka_relation_broken, self._on_kafka_relation_broken +# ) +# self.framework.observe( +# self.on.mongodb_relation_broken, self._on_mongodb_relation_broken +# ) +# self.framework.observe( +# self.on.ro_relation_broken, self._on_ro_relation_broken +# ) + +# def _on_kafka_relation_changed(self, event: EventBase) -> NoReturn: +# """Reads information about the kafka relation. + +# Args: +# event (EventBase): Kafka relation event. +# """ +# message_host = event.relation.data[event.unit].get("host") +# message_port = event.relation.data[event.unit].get("port") + +# if ( +# message_host +# and message_port +# and ( +# self.state.message_host != message_host +# or self.state.message_port != message_port +# ) +# ): +# self.state.message_host = message_host +# self.state.message_port = message_port +# self.on.configure_pod.emit() + +# def _on_kafka_relation_broken(self, event: EventBase) -> NoReturn: +# """Clears data from kafka relation. + +# Args: +# event (EventBase): Kafka relation event. +# """ +# self.state.message_host = None +# self.state.message_port = None +# self.on.configure_pod.emit() + +# def _on_mongodb_relation_changed(self, event: EventBase) -> NoReturn: +# """Reads information about the DB relation. + +# Args: +# event (EventBase): DB relation event. +# """ +# database_uri = event.relation.data[event.unit].get("connection_string") + +# if database_uri and self.state.database_uri != database_uri: +# self.state.database_uri = database_uri +# self.on.configure_pod.emit() + +# def _on_mongodb_relation_broken(self, event: EventBase) -> NoReturn: +# """Clears data from mongodb relation. + +# Args: +# event (EventBase): DB relation event. +# """ +# self.state.database_uri = None +# self.on.configure_pod.emit() + +# def _on_ro_relation_changed(self, event: EventBase) -> NoReturn: +# """Reads information about the RO relation. + +# Args: +# event (EventBase): Keystone relation event. +# """ +# ro_host = event.relation.data[event.unit].get("host") +# ro_port = event.relation.data[event.unit].get("port") + +# if ( +# ro_host +# and ro_port +# and (self.state.ro_host != ro_host or self.state.ro_port != ro_port) +# ): +# self.state.ro_host = ro_host +# self.state.ro_port = ro_port +# self.on.configure_pod.emit() + +# def _on_ro_relation_broken(self, event: EventBase) -> NoReturn: +# """Clears data from ro relation. + +# Args: +# event (EventBase): Keystone relation event. +# """ +# self.state.ro_host = None +# self.state.ro_port = None +# self.on.configure_pod.emit() + +# def _missing_relations(self) -> str: +# """Checks if there missing relations. + +# Returns: +# str: string with missing relations +# """ +# data_status = { +# "kafka": self.state.message_host, +# "mongodb": self.state.database_uri, +# "ro": self.state.ro_host, +# } + +# missing_relations = [k for k, v in data_status.items() if not v] + +# return ", ".join(missing_relations) + +# @property +# def relation_state(self) -> Dict[str, Any]: +# """Collects relation state configuration for pod spec assembly. + +# Returns: +# Dict[str, Any]: relation state information. +# """ +# relation_state = { +# "message_host": self.state.message_host, +# "message_port": self.state.message_port, +# "database_uri": self.state.database_uri, +# "ro_host": self.state.ro_host, +# "ro_port": self.state.ro_port, +# } + +# return relation_state + +# def configure_pod(self, event: EventBase) -> NoReturn: +# """Assemble the pod spec and apply it, if possible. + +# Args: +# event (EventBase): Hook or Relation event that started the +# function. +# """ +# if missing := self._missing_relations(): +# self.unit.status = BlockedStatus( +# "Waiting for {0} relation{1}".format( +# missing, "s" if "," in missing else "" +# ) +# ) +# return + +# if not self.unit.is_leader(): +# self.unit.status = ActiveStatus("ready") +# return + +# self.unit.status = MaintenanceStatus("Assembling pod spec") + +# # Fetch image information +# try: +# self.unit.status = MaintenanceStatus("Fetching image information") +# image_info = self.image.fetch() +# except OCIImageResourceError: +# self.unit.status = BlockedStatus("Error fetching image information") +# return + +# try: +# pod_spec = make_pod_spec( +# image_info, +# self.model.config, +# self.relation_state, +# self.model.app.name, +# self.port, +# ) +# except ValueError as exc: +# logger.exception("Config/Relation data validation error") +# self.unit.status = BlockedStatus(str(exc)) +# return + +# if self.state.pod_spec != pod_spec: +# self.model.pod.set_spec(pod_spec) +# self.state.pod_spec = pod_spec + +# self.unit.status = ActiveStatus("ready") + + +# if __name__ == "__main__": +# main(LcmCharm)