Record OS version

clients/record_os_version

@@ -0,0 +1,43 @@
+#!/usr/bin/python3
+import re
+import subprocess
+import time
+
+import ltsdb_record
+
+p = subprocess.run(["/usr/bin/lsb_release", "-ir"], capture_output=True, text=True)
+for ln in p.stdout.split("\n")[:-1]:
+    m = re.match(r"(.*?)\s*:\s+(.*)", ln)
+    if m:
+        if m.group(1) == "Distributor ID":
+            distributor = m.group(2).lower()
+        elif m.group(1) == "Release":
+            release = m.group(2)
+if distributor == "ubuntu":
+    # special rule for ubuntu. The format is year.month, so we convert the
+    # months into fractional years
+    m = re.match(r"(\d+)\.(\d+)", release)
+    release = int(m.group(1)) + (int(m.group(2)) - 1) / 12
+else:
+    # for everybody else we assume its a fp number
+    release = float(release)
+
+report0 = []
+report0.append({ "measure": "os_version_" + distributor, "unit": "version", "value": release})
+now = time.time()
+report = [
+    {
+        "description": {
+            "hostname": ltsdb_record.node,
+            "measure": r["measure"],
+            "unit": r["unit"]
+        },
+        "data": [
+            [now, r["value"]]
+        ]
+    }
+    for r in report0
+]
+
+success = ltsdb_record.record_observations(report)
+exit(1 - success)