Replace service and delivery screenshots with live status

status-api/status_api.py

@@ -3,10 +3,12 @@ import os
 import time
 import urllib.parse
 import urllib.request
+from pathlib import Path
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 
 PROMETHEUS_URL = os.getenv("PROMETHEUS_URL", "http://host.docker.internal:9090").rstrip("/")
 TIMEOUT = float(os.getenv("PROMETHEUS_TIMEOUT", "2.5"))
+SITE_GIT_DIR = Path(os.getenv("SITE_GIT_DIR", "/site/.git"))
 
 QUERIES = {
     "cpu_percent": '100-(avg(rate(node_cpu_seconds_total{mode="idle"}[2m]))*100)',
@@ -15,11 +17,23 @@ QUERIES = {
     "running_containers": 'count(count by (name) (container_last_seen{name!=""}))',
 }
 
+HTTP_CHECKS = {
+    "gitea": "http://host.docker.internal:3000/api/v1/version",
+    "woodpecker": "http://host.docker.internal:8010/",
+    "uptime_kuma": "http://host.docker.internal:3001/",
+    "prometheus": "http://host.docker.internal:9090/-/healthy",
+}
+
 def get_json(url):
     request = urllib.request.Request(url, headers={"Accept": "application/json"})
     with urllib.request.urlopen(request, timeout=TIMEOUT) as response:
         return json.load(response)
 
+def get_text(url):
+    request = urllib.request.Request(url, headers={"Accept": "*/*"})
+    with urllib.request.urlopen(request, timeout=TIMEOUT) as response:
+        return response.status, response.read(1024).decode("utf-8", "replace")
+
 def prometheus_query(expression):
     url = f"{PROMETHEUS_URL}/api/v1/query?{urllib.parse.urlencode({'query': expression})}"
     payload = get_json(url)
@@ -43,9 +57,51 @@ def target_health():
         "jobs": jobs,
     }
 
+def check_services():
+    services = {}
+    for name, url in HTTP_CHECKS.items():
+        try:
+            status, body = get_text(url)
+            services[name] = {"up": 200 <= status < 400, "status": status}
+            if name == "gitea":
+                try:
+                    services[name]["version"] = json.loads(body).get("version")
+                except Exception:
+                    pass
+        except Exception:
+            services[name] = {"up": False, "status": None}
+    return services
+
+def deployed_commit():
+    try:
+        head = (SITE_GIT_DIR / "HEAD").read_text(encoding="utf-8").strip()
+        if head.startswith("ref: "):
+            ref = head[5:]
+            ref_path = SITE_GIT_DIR / ref
+            if ref_path.exists():
+                value = ref_path.read_text(encoding="utf-8").strip()
+            else:
+                value = None
+                packed = SITE_GIT_DIR / "packed-refs"
+                if packed.exists():
+                    for line in packed.read_text(encoding="utf-8").splitlines():
+                        if line and not line.startswith(("#", "^")):
+                            sha, name = line.split(" ", 1)
+                            if name == ref:
+                                value = sha
+                                break
+                if not value:
+                    return None
+        else:
+            value = head
+        return value[:7]
+    except Exception:
+        return None
+
 def build_status():
     values = {name: prometheus_query(query) for name, query in QUERIES.items()}
     targets = target_health()
+    services = check_services()
     return {
         "ok": True,
         "source": "Prometheus / node_exporter / cAdvisor",
@@ -57,6 +113,11 @@ def build_status():
         },
         "containers": {"running": int(values["running_containers"])},
         "prometheus": targets,
+        "services": services,
+        "deployment": {
+            "commit": deployed_commit(),
+            "site": "bytegeist.casko.dev",
+        },
     }
 
 class Handler(BaseHTTPRequestHandler):