Remove Prometheus charm
[osm/devops.git] / installers / charm / prometheus / src / pod_spec.py
diff --git a/installers/charm/prometheus/src/pod_spec.py b/installers/charm/prometheus/src/pod_spec.py
deleted file mode 100644 (file)
index 202114e..0000000
+++ /dev/null
@@ -1,380 +0,0 @@
-#!/usr/bin/env python3
-# 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
-# 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
-##
-
-from ipaddress import ip_network
-import logging
-from typing import Any, Dict, List
-from urllib.parse import urlparse
-
-logger = logging.getLogger(__name__)
-
-
-def _validate_max_file_size(max_file_size: int, site_url: str) -> bool:
-    """Validate max_file_size.
-
-    Args:
-        max_file_size (int): maximum file size allowed.
-        site_url (str): endpoint url.
-
-    Returns:
-        bool: True if valid, false otherwise.
-    """
-    if not site_url:
-        return True
-
-    parsed = urlparse(site_url)
-
-    if not parsed.scheme.startswith("http"):
-        return True
-
-    if max_file_size is None:
-        return False
-
-    return max_file_size >= 0
-
-
-def _validate_ip_network(network: str) -> bool:
-    """Validate IP network.
-
-    Args:
-        network (str): IP network range.
-
-    Returns:
-        bool: True if valid, false otherwise.
-    """
-    if not network:
-        return True
-
-    try:
-        ip_network(network)
-    except ValueError:
-        return False
-
-    return True
-
-
-def _validate_data(config_data: Dict[str, Any], relation_data: Dict[str, Any]) -> bool:
-    """Validates passed information.
-
-    Args:
-        config_data (Dict[str, Any]): configuration information.
-        relation_data (Dict[str, Any]): relation information
-
-    Raises:
-        ValueError: when config and/or relation data is not valid.
-    """
-    config_validators = {
-        "web_subpath": lambda value, _: isinstance(value, str) and len(value) > 0,
-        "default_target": lambda value, _: isinstance(value, str),
-        "site_url": lambda value, _: isinstance(value, str)
-        if value is not None
-        else True,
-        "max_file_size": lambda value, values: _validate_max_file_size(
-            value, values.get("site_url")
-        ),
-        "ingress_whitelist_source_range": lambda value, _: _validate_ip_network(value),
-        "tls_secret_name": lambda value, _: isinstance(value, str)
-        if value is not None
-        else True,
-        "enable_web_admin_api": lambda value, _: isinstance(value, bool),
-    }
-    relation_validators = {}
-    problems = []
-
-    for key, validator in config_validators.items():
-        valid = validator(config_data.get(key), config_data)
-
-        if not valid:
-            problems.append(key)
-
-    for key, validator in relation_validators.items():
-        valid = validator(relation_data.get(key), relation_data)
-
-        if not valid:
-            problems.append(key)
-
-    if len(problems) > 0:
-        raise ValueError("Errors found in: {}".format(", ".join(problems)))
-
-    return True
-
-
-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": "prometheus", "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 = {}
-
-    return envconfig
-
-
-def _make_pod_ingress_resources(
-    config: Dict[str, Any], app_name: str, port: int
-) -> List[Dict[str, Any]]:
-    """Generate pod ingress resources.
-
-    Args:
-        config (Dict[str, Any]): configuration information.
-        app_name (str): application name.
-        port (int): port to expose.
-
-    Returns:
-        List[Dict[str, Any]]: pod ingress resources.
-    """
-    site_url = config.get("site_url")
-
-    if not site_url:
-        return
-
-    parsed = urlparse(site_url)
-
-    if not parsed.scheme.startswith("http"):
-        return
-
-    max_file_size = config["max_file_size"]
-    ingress_whitelist_source_range = config["ingress_whitelist_source_range"]
-
-    annotations = {
-        "nginx.ingress.kubernetes.io/proxy-body-size": "{}".format(
-            str(max_file_size) + "m" if max_file_size > 0 else max_file_size
-        ),
-    }
-
-    if ingress_whitelist_source_range:
-        annotations[
-            "nginx.ingress.kubernetes.io/whitelist-source-range"
-        ] = ingress_whitelist_source_range
-
-    ingress_spec_tls = None
-
-    if parsed.scheme == "https":
-        ingress_spec_tls = [{"hosts": [parsed.hostname]}]
-        tls_secret_name = config["tls_secret_name"]
-        if tls_secret_name:
-            ingress_spec_tls[0]["secretName"] = tls_secret_name
-    else:
-        annotations["nginx.ingress.kubernetes.io/ssl-redirect"] = "false"
-
-    ingress = {
-        "name": "{}-ingress".format(app_name),
-        "annotations": annotations,
-        "spec": {
-            "rules": [
-                {
-                    "host": parsed.hostname,
-                    "http": {
-                        "paths": [
-                            {
-                                "path": "/",
-                                "backend": {
-                                    "serviceName": app_name,
-                                    "servicePort": port,
-                                },
-                            }
-                        ]
-                    },
-                }
-            ]
-        },
-    }
-    if ingress_spec_tls:
-        ingress["spec"]["tls"] = ingress_spec_tls
-
-    return [ingress]
-
-
-def _make_pod_files(config: Dict[str, Any]) -> List[Dict[str, Any]]:
-    """Generating ConfigMap information
-
-    Args:
-        config (Dict[str, Any]): configuration information.
-
-    Returns:
-        List[Dict[str, Any]]: ConfigMap information.
-    """
-    files = [
-        {
-            "name": "config",
-            "mountPath": "/etc/prometheus",
-            "files": [
-                {
-                    "path": "prometheus.yml",
-                    "content": (
-                        "global:\n"
-                        "  scrape_interval: 15s\n"
-                        "  evaluation_interval: 15s\n"
-                        "alerting:\n"
-                        "  alertmanagers:\n"
-                        "    - static_configs:\n"
-                        "        - targets:\n"
-                        "rule_files:\n"
-                        "scrape_configs:\n"
-                        "  - job_name: 'prometheus'\n"
-                        "    static_configs:\n"
-                        "      - targets: [{}]\n".format(config["default_target"])
-                    ),
-                }
-            ],
-        }
-    ]
-
-    return files
-
-
-def _make_readiness_probe(port: int) -> Dict[str, Any]:
-    """Generate readiness probe.
-
-    Args:
-        port (int): service port.
-
-    Returns:
-        Dict[str, Any]: readiness probe.
-    """
-    return {
-        "httpGet": {
-            "path": "/-/ready",
-            "port": port,
-        },
-        "initialDelaySeconds": 10,
-        "timeoutSeconds": 30,
-    }
-
-
-def _make_liveness_probe(port: int) -> Dict[str, Any]:
-    """Generate liveness probe.
-
-    Args:
-        port (int): service port.
-
-    Returns:
-        Dict[str, Any]: liveness probe.
-    """
-    return {
-        "httpGet": {
-            "path": "/-/healthy",
-            "port": port,
-        },
-        "initialDelaySeconds": 30,
-        "periodSeconds": 30,
-    }
-
-
-def _make_pod_command(config: Dict[str, Any], port: int) -> List[str]:
-    """Generate the startup command.
-
-    Args:
-        config (Dict[str, Any]): Configuration information.
-        port (int): port.
-
-    Returns:
-        List[str]: command to startup the process.
-    """
-    command = [
-        "/bin/prometheus",
-        "--config.file=/etc/prometheus/prometheus.yml",
-        "--storage.tsdb.path=/prometheus",
-        "--web.console.libraries=/usr/share/prometheus/console_libraries",
-        "--web.console.templates=/usr/share/prometheus/consoles",
-        "--web.route-prefix={}".format(config.get("web_subpath")),
-        "--web.external-url=http://localhost:{}{}".format(
-            port, config.get("web_subpath")
-        ),
-    ]
-    if config.get("enable_web_admin_api"):
-        command.append("--web.enable-admin-api")
-    return command
-
-
-def make_pod_spec(
-    image_info: Dict[str, str],
-    config: Dict[str, Any],
-    relation_state: Dict[str, Any],
-    app_name: str = "prometheus",
-    port: int = 9090,
-) -> 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 "ro".
-        port (int, optional): Port for the container. Defaults to 9090.
-
-    Returns:
-        Dict[str, Any]: Pod spec dictionary for the charm.
-    """
-    if not image_info:
-        return None
-
-    _validate_data(config, relation_state)
-
-    ports = _make_pod_ports(port)
-    env_config = _make_pod_envconfig(config, relation_state)
-    files = _make_pod_files(config)
-    readiness_probe = _make_readiness_probe(port)
-    liveness_probe = _make_liveness_probe(port)
-    ingress_resources = _make_pod_ingress_resources(config, app_name, port)
-    command = _make_pod_command(config, port)
-
-    return {
-        "version": 3,
-        "containers": [
-            {
-                "name": app_name,
-                "imageDetails": image_info,
-                "imagePullPolicy": "Always",
-                "ports": ports,
-                "envConfig": env_config,
-                "volumeConfig": files,
-                "command": command,
-                "kubernetes": {
-                    "readinessProbe": readiness_probe,
-                    "livenessProbe": liveness_probe,
-                },
-            }
-        ],
-        "kubernetesResources": {
-            "ingressResources": ingress_resources or [],
-        },
-    }