wip

slapos/promise/check_error_on_apache_log/__init__.py

+import re
+import time
+import sys
+import gzip
+
+r = re.compile("^(\[[^\]]+\]) (\[[^\]]+\]) (.*)$")
+
+log_file = sys.argv[1]
+
+MAXIMUM_DELAY = 0
+
+VERBOSE = 0
+BLOCK_SIZE = 4096
+error_amount = 0
+no_route_error = 0
+network_is_unreacheable = 0
+timeout = 0
+
+def test(log_file, maximum_delay):
+  with open(log_file) as f:
+
+    f.seek(0, 2)
+    block_end_byte = f.tell()
+    if not BLOCK_SIZE:
+      BLOCK_SIZE = block_end_byte
+
+    f.seek(-min(block_end_byte, BLOCK_SIZE), 1)
+
+    data = f.read()
+    for line in reversed(data.splitlines()):
+      m = r.match(line)
+      if m is None:
+        continue
+      dt, level, msg = m.groups()
+      t = time.strptime(dt[1:-1], "%a %b %d %H:%M:%S %Y")
+      if maximum_delay and (time.time()-time.mktime(t)) > maximum_delay:
+        # no result in the latest hour
+        break
+
+      if level != "[error]":
+        continue
+
+      # Classify the types of errors
+      if "(113)No route to host" in msg:
+        no_route_error += 1
+      elif "(101)Network is unreachable" in msg:
+        network_is_unreacheable += 1
+      elif "(110)Connection timed out" in msg:
+        timeout += 1
+      
+      error_amount += 1
+
+  if error_amount:
+    return "ERROR=%s (NOTROUTE=%s, UNREACHEABLENET=%s, TIMEOUT=%s)" % (error_amount, no_route_error, network_is_unreacheable, timeout)
+  
+  return "OK"
+
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument("-l", "--log-file", metavar="LOG_FILE")
+  parser.add_argument("-d", "--maximun-delay", metavar="MAXIMUM_DELAY", default=0)
+  args = parser.parse_args()
+
+  log_file = args.log_file
+
+  result = test(args.log_file, args.maximum_delay)
+
+  print result
+  if result != "OK":
+    sys.exit(1)
+