cloudmon/monitor/views.py

import json
import base64
import requests
from django.http import JsonResponse
from django.views.generic import TemplateView, View

class DashboardView(TemplateView):
    template_name = "monitor/dashboard.html"

class ClusterGraphDataView(View):
    def get(self, request, *args, **kwargs):
        try:
            repo_name = request.GET.get("repo", "boday_tf")
            # ENTERPRISE RESOLUTION: Nutzt wieder das native Docker-DNS im gemeinsamen Netzwerk!
            consul_url = f"http://consul:8500/v1/kv/terraform/states/{repo_name}"
            
            response = requests.get(consul_url, timeout=5)
            if response.status_code == 404:
                return JsonResponse({"name": f"Warte auf Consul-Key '{repo_name}'...", "type": "Root", "children": []})
            
            consul_data = response.json()
            raw_value = None
            
            if isinstance(consul_data, list) and len(consul_data) > 0:
                first_item = consul_data[0]
                if isinstance(first_item, dict):
                    raw_value = first_item.get("Value")
            elif isinstance(consul_data, dict):
                raw_value = consul_data.get("Value")

            if not raw_value:
                return JsonResponse({"name": f"Key '{repo_name}' leer.", "type": "Root", "children": []})
            
            state_json = json.loads(base64.b64decode(raw_value).decode('utf-8'))
            resources = state_json.get("resources", [])
            
            ingresses = []
            services = {}
            deployments = {}

            for res in resources:
                res_type = res.get("type")
                res_name = res.get("name")
                instances = res.get("instances", [])
                
                if isinstance(instances, list) and len(instances) > 0:
                    attributes = instances[0].get("attributes", {})
                elif isinstance(instances, dict):
                    attributes = instances.get("attributes", {})
                else:
                    attributes = res.get("values", {})

                if not attributes:
                    continue

                metadata = attributes.get("metadata", [{}])
                actual_name = metadata[0].get("name", res_name) if isinstance(metadata, list) and len(metadata) > 0 else metadata.get("name", res_name) if hasattr(metadata, "get") else res_name

                if res_type in ["kubernetes_ingress_v1", "kubernetes_ingress"]:
                    spec = attributes.get("spec", [{}])
                    rules = spec[0].get("rule", []) if isinstance(spec, list) and len(spec) > 0 else spec.get("rule", []) if hasattr(spec, "get") else []
                    ingresses.append({"name": actual_name, "rules": rules})
                elif res_type in ["kubernetes_service", "kubernetes_service_v1", "helm_release"]:
                    services[actual_name] = {"name": actual_name, "type": "Helm-Chart" if res_type == "helm_release" else "Service"}
                elif res_type in ["kubernetes_deployment", "kubernetes_deployment_v1"]:
                    deployments[actual_name] = {"name": actual_name, "type": "Deployment"}

            root_node = {
                "name": f"Consul: {repo_name}",
                "type": "Root",
                "children": []
            }

            for ing in ingresses:
                ing_node = {"name": ing["name"], "type": "Ingress", "children": []}
                root_node["children"].append(ing_node)

            if not root_node["children"]:
                for s_name, s_obj in services.items():
                    root_node["children"].append({"name": s_name, "type": s_obj["type"], "children": []})

            return JsonResponse(root_node)

        except Exception as e:
            return JsonResponse({
                "name": "cloudmon // Fehler-Detail",
                "type": "Root",
                "children": [{"name": f"Fehler: {str(e)}", "type": "Error", "children": []}]
            })