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| 1 | +#!/usr/bin/env python3 |
| 2 | +import http.client |
| 3 | +import json |
| 4 | +import os |
| 5 | +import sys |
| 6 | +from urllib.parse import urlparse |
| 7 | + |
| 8 | + |
| 9 | +def parse_input(): |
| 10 | + """ |
| 11 | + Reads JSON input from stdin and parses it into a dictionary. |
| 12 | + Returns: |
| 13 | + dict: Parsed input data. |
| 14 | + """ |
| 15 | + try: |
| 16 | + data = json.loads(sys.stdin.read()) |
| 17 | + except json.JSONDecodeError as e: |
| 18 | + raise ValueError("Invalid JSON input") from e |
| 19 | + return data |
| 20 | + |
| 21 | + |
| 22 | +def validate_inputs(data): |
| 23 | + """ |
| 24 | + Validates required inputs 'IAM_TOKEN' and 'REGION' from the parsed input. |
| 25 | + Args: |
| 26 | + data (dict): Input data parsed from JSON. |
| 27 | + Returns: |
| 28 | + tuple: A tuple containing (IAM_TOKEN, REGION). |
| 29 | + """ |
| 30 | + token = data.get("IAM_TOKEN") |
| 31 | + if not token: |
| 32 | + raise ValueError("IAM_TOKEN is required") |
| 33 | + |
| 34 | + region = data.get("REGION") |
| 35 | + if not region: |
| 36 | + raise ValueError("REGION is required") |
| 37 | + |
| 38 | + return token, region |
| 39 | + |
| 40 | + |
| 41 | +def get_env_variable(): |
| 42 | + """ |
| 43 | + Retrieves the value of an environment variable. |
| 44 | + Returns: |
| 45 | + str: The value of the environment variable. |
| 46 | + """ |
| 47 | + api_endpoint = os.getenv("IBMCLOUD_CS_API_ENDPOINT") |
| 48 | + if not api_endpoint: |
| 49 | + api_endpoint = "https://containers.test.cloud.ibm.com/global" |
| 50 | + return api_endpoint |
| 51 | + |
| 52 | + |
| 53 | +def fetch_addon_versions(iam_token, region, api_endpoint): |
| 54 | + """ |
| 55 | + Fetches openshift add-on versions using HTTP connection. |
| 56 | + Args: |
| 57 | + iam_token (str): IBM Cloud IAM token for authentication. |
| 58 | + region (str): Region to query for add-ons. |
| 59 | + api_endpoint (str): Base API endpoint URL. |
| 60 | + Returns: |
| 61 | + list: Parsed JSON response containing add-on information. |
| 62 | + """ |
| 63 | + # Add https if user passed just a hostname |
| 64 | + if not api_endpoint.startswith("https://"): |
| 65 | + api_endpoint = f"https://{api_endpoint}" |
| 66 | + |
| 67 | + parsed = urlparse(api_endpoint) |
| 68 | + |
| 69 | + # Default path to /global if none supplied |
| 70 | + base_path = parsed.path.rstrip("/") if parsed.path else "/global" |
| 71 | + |
| 72 | + host = parsed.hostname |
| 73 | + headers = { |
| 74 | + "Authorization": f"Bearer {iam_token}", |
| 75 | + "Accept": "application/json", |
| 76 | + "X-Region": region, |
| 77 | + } |
| 78 | + |
| 79 | + conn = http.client.HTTPSConnection(host) |
| 80 | + try: |
| 81 | + # Final API path |
| 82 | + url = f"{base_path}/v1/addons" |
| 83 | + conn.request("GET", url, headers=headers) |
| 84 | + response = conn.getresponse() |
| 85 | + data = response.read().decode() |
| 86 | + |
| 87 | + if response.status != 200: |
| 88 | + raise RuntimeError( |
| 89 | + f"API request failed: {response.status} {response.reason} - {data}" |
| 90 | + ) |
| 91 | + |
| 92 | + return json.loads(data) |
| 93 | + except http.client.HTTPException as e: |
| 94 | + raise RuntimeError("HTTP request failed") from e |
| 95 | + finally: |
| 96 | + conn.close() |
| 97 | + |
| 98 | + |
| 99 | +def transform_cluster_addons_data(addons_data): |
| 100 | + """ |
| 101 | + Transforms cluster add-on raw data into a nested dictionary structured by add-on name and version. |
| 102 | + Args: |
| 103 | + addons_data: Raw data returned by the add-on API. |
| 104 | + Returns: |
| 105 | + dict: Transformed add-on data suitable for Terraform consumption. |
| 106 | + """ |
| 107 | + result = {} |
| 108 | + |
| 109 | + for addon in addons_data: |
| 110 | + name = addon.get("name") |
| 111 | + version = addon.get("version") |
| 112 | + |
| 113 | + supported_ocp = addon.get("supportedOCPRange", "unsupported") |
| 114 | + supported_kube = addon.get("supportedKubeRange", "unsupported") |
| 115 | + |
| 116 | + if name not in result: |
| 117 | + result[name] = {} |
| 118 | + |
| 119 | + result[name][version] = { |
| 120 | + "supported_openshift_range": supported_ocp, |
| 121 | + "supported_kubernetes_range": supported_kube, |
| 122 | + } |
| 123 | + |
| 124 | + if not result: |
| 125 | + raise RuntimeError("No add-on data found.") |
| 126 | + |
| 127 | + return result |
| 128 | + |
| 129 | + |
| 130 | +def format_for_terraform(result): |
| 131 | + """ |
| 132 | + Converts the transformed add-on data into JSON strings for Terraform external data source consumption. |
| 133 | + Args: |
| 134 | + result (dict): Transformed add-on data. |
| 135 | + Returns: |
| 136 | + dict: A dictionary mapping add-on names to JSON strings of their version info. |
| 137 | + """ |
| 138 | + return {name: json.dumps(versions) for name, versions in result.items()} |
| 139 | + |
| 140 | + |
| 141 | +def main(): |
| 142 | + """ |
| 143 | + Main execution function: reads input, validates, fetches API data, transforms it, |
| 144 | + formats it for Terraform and prints the JSON output. |
| 145 | + """ |
| 146 | + data = parse_input() |
| 147 | + iam_token, region = validate_inputs(data) |
| 148 | + api_endpoint = get_env_variable() |
| 149 | + addons_data = fetch_addon_versions(iam_token, region, api_endpoint) |
| 150 | + transformed = transform_cluster_addons_data(addons_data) |
| 151 | + output = format_for_terraform(transformed) |
| 152 | + |
| 153 | + print(json.dumps(output)) |
| 154 | + |
| 155 | + |
| 156 | +if __name__ == "__main__": |
| 157 | + main() |
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