--- /dev/null
+#!/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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+import logging
+from pydantic import BaseModel, constr, PositiveInt
+from typing import Any, Dict, List
+
+logger = logging.getLogger(__name__)
+
+
+class ConfigData(BaseModel):
+ """Configuration data model."""
+
+ openstack_default_granularity: PositiveInt
+ global_request_timeout: PositiveInt
+ log_level: constr(regex=r"^(INFO|DEBUG)$")
+ collector_interval: PositiveInt
+ evaluator_interval: PositiveInt
+ database_commonkey: constr(min_length=1)
+ vca_host: constr(min_length=1)
+ vca_user: constr(min_length=1)
+ vca_password: constr(min_length=1)
+ vca_cacert: str
+
+
+class RelationData(BaseModel):
+ """Relation data model."""
+
+ message_host: constr(min_length=1)
+ message_port: PositiveInt
+ database_uri: constr(regex=r"^(mongodb://)")
+ prometheus_host: constr(min_length=1)
+ prometheus_port: PositiveInt
+
+
+def _make_pod_ports(port: int) -> List[Dict[str, Any]]:
+ """Generate pod ports details.
+
+ Args:
+ port (int): port to expose.
+
+ Returns:
+ List[Dict[str, Any]]: pod port details.
+ """
+ return [{"name": "mon", "containerPort": port, "protocol": "TCP"}]
+
+
+def _make_pod_envconfig(
+ config: Dict[str, Any], relation_state: Dict[str, Any]
+) -> Dict[str, Any]:
+ """Generate pod environment configuration.
+
+ Args:
+ config (Dict[str, Any]): configuration information.
+ relation_state (Dict[str, Any]): relation state information.
+
+ Returns:
+ Dict[str, Any]: pod environment configuration.
+ """
+ envconfig = {
+ # General configuration
+ "ALLOW_ANONYMOUS_LOGIN": "yes",
+ "OSMMON_OPENSTACK_DEFAULT_GRANULARITY": config["openstack_default_granularity"],
+ "OSMMON_GLOBAL_REQUEST_TIMEOUT": config["global_request_timeout"],
+ "OSMMON_GLOBAL_LOGLEVEL": config["log_level"],
+ "OSMMON_COLLECTOR_INTERVAL": config["collector_interval"],
+ "OSMMON_EVALUATOR_INTERVAL": config["evaluator_interval"],
+ # Kafka configuration
+ "OSMMON_MESSAGE_DRIVER": "kafka",
+ "OSMMON_MESSAGE_HOST": relation_state["message_host"],
+ "OSMMON_MESSAGE_PORT": relation_state["message_port"],
+ # Database configuration
+ "OSMMON_DATABASE_DRIVER": "mongo",
+ "OSMMON_DATABASE_URI": relation_state["database_uri"],
+ "OSMMON_DATABASE_COMMONKEY": config["database_commonkey"],
+ # Prometheus configuration
+ "OSMMON_PROMETHEUS_URL": f"http://{relation_state['prometheus_host']}:{relation_state['prometheus_port']}",
+ # VCA configuration
+ "OSMMON_VCA_HOST": config["vca_host"],
+ "OSMMON_VCA_USER": config["vca_user"],
+ "OSMMON_VCA_SECRET": config["vca_password"],
+ "OSMMON_VCA_CACERT": config["vca_cacert"],
+ }
+
+ return envconfig
+
+
+def _make_startup_probe() -> Dict[str, Any]:
+ """Generate startup probe.
+
+ Returns:
+ Dict[str, Any]: startup probe.
+ """
+ return {
+ "exec": {"command": ["/usr/bin/pgrep python3"]},
+ "initialDelaySeconds": 60,
+ "timeoutSeconds": 5,
+ }
+
+
+def _make_readiness_probe(port: int) -> Dict[str, Any]:
+ """Generate readiness probe.
+
+ Args:
+ port (int): [description]
+
+ Returns:
+ Dict[str, Any]: readiness probe.
+ """
+ return {
+ "tcpSocket": {
+ "port": port,
+ },
+ "periodSeconds": 10,
+ "timeoutSeconds": 5,
+ "successThreshold": 1,
+ "failureThreshold": 3,
+ }
+
+
+def _make_liveness_probe(port: int) -> Dict[str, Any]:
+ """Generate liveness probe.
+
+ Args:
+ port (int): [description]
+
+ Returns:
+ Dict[str, Any]: liveness probe.
+ """
+ return {
+ "tcpSocket": {
+ "port": port,
+ },
+ "initialDelaySeconds": 45,
+ "periodSeconds": 10,
+ "timeoutSeconds": 5,
+ "successThreshold": 1,
+ "failureThreshold": 3,
+ }
+
+
+def make_pod_spec(
+ image_info: Dict[str, str],
+ config: Dict[str, Any],
+ relation_state: Dict[str, Any],
+ app_name: str = "mon",
+ port: int = 8000,
+) -> Dict[str, Any]:
+ """Generate the pod spec information.
+
+ Args:
+ image_info (Dict[str, str]): Object provided by
+ OCIImageResource("image").fetch().
+ config (Dict[str, Any]): Configuration information.
+ relation_state (Dict[str, Any]): Relation state information.
+ app_name (str, optional): Application name. Defaults to "mon".
+ port (int, optional): Port for the container. Defaults to 8000.
+
+ Returns:
+ Dict[str, Any]: Pod spec dictionary for the charm.
+ """
+ if not image_info:
+ return None
+
+ ConfigData(**(config))
+ RelationData(**(relation_state))
+
+ ports = _make_pod_ports(port)
+ env_config = _make_pod_envconfig(config, relation_state)
+
+ return {
+ "version": 3,
+ "containers": [
+ {
+ "name": app_name,
+ "imageDetails": image_info,
+ "imagePullPolicy": "Always",
+ "ports": ports,
+ "envConfig": env_config,
+ }
+ ],
+ "kubernetesResources": {
+ "ingressResources": [],
+ },
+ }
projects / osm / devops.git / blobdiff