health_renderer.py

   1 #!/usr/bin/env python3
   2
   3 import os
   4 import time
   5 from typing import Dict, List
   6
   7 import constants
   8 import file_writer
   9 import renderer
  10 import utils
  11
  12
  13 class periodic_health_renderer(renderer.debuggable_abstaining_renderer):
  14     def __init__(self, name_to_timeout_dict: Dict[str, int]) -> None:
  15         super(periodic_health_renderer, self).__init__(name_to_timeout_dict, False)
  16
  17     def debug_prefix(self) -> str:
  18         return "health"
  19
  20     def periodic_render(self, key: str) -> bool:
  21         with file_writer.file_writer("periodic-health_6_300.html") as f:
  22             timestamps = "/timestamps/"
  23             days = constants.seconds_per_day
  24             hours = constants.seconds_per_hour
  25             mins = constants.seconds_per_minute
  26             minutes = mins
  27             limits = {
  28                 timestamps + "last_http_probe_wannabe_house": mins * 10,
  29                 timestamps + "last_http_probe_meerkat_cabin": mins * 10,
  30                 timestamps + "last_http_probe_dns_house": mins * 10,
  31                 timestamps + "last_http_probe_rpi_cabin": mins * 10,
  32                 timestamps + "last_http_probe_rpi_house": mins * 10,
  33                 timestamps + "last_http_probe_therm_house": mins * 10,
  34                 timestamps + "last_rsnapshot_hourly": hours * 24,
  35                 timestamps + "last_rsnapshot_daily": days * 3,
  36                 timestamps + "last_rsnapshot_weekly": days * 14,
  37                 timestamps + "last_rsnapshot_monthly": days * 70,
  38                 timestamps + "last_zfssnapshot_hourly": hours * 5,
  39                 timestamps + "last_zfssnapshot_daily": hours * 36,
  40                 timestamps + "last_zfssnapshot_weekly": days * 9,
  41                 timestamps + "last_zfssnapshot_monthly": days * 70,
  42                 timestamps + "last_zfssnapshot_cleanup": hours * 24,
  43                 timestamps + "last_zfs_scrub": days * 9,
  44                 timestamps + "last_backup_zfs_scrub": days * 9,
  45                 timestamps + "last_cabin_zfs_scrub": days * 9,
  46                 timestamps + "last_zfsxfer_backup.house": hours * 36,
  47                 timestamps + "last_zfsxfer_ski.dyn.guru.org": days * 7,
  48                 timestamps + "last_photos_sync": hours * 8,
  49                 timestamps + "last_disk_selftest_short": days * 14,
  50                 timestamps + "last_disk_selftest_long": days * 31,
  51                 timestamps + "last_backup_disk_selftest_short": days * 14,
  52                 timestamps + "last_backup_disk_selftest_long": days * 31,
  53                 timestamps + "last_cabin_disk_selftest_short": days * 14,
  54                 timestamps + "last_cabin_disk_selftest_long": days * 31,
  55                 timestamps + "last_cabin_rpi_ping": mins * 10,
  56                 timestamps + "last_healthy_wifi": mins * 10,
  57                 timestamps + "last_healthy_network": mins * 10,
  58                 timestamps + "last_scott_sync": days * 2,
  59             }
  60             self.write_header(f)
  61
  62             now = time.time()
  63             n = 0
  64             for x in sorted(limits):
  65                 ts = os.stat(x).st_mtime
  66                 age = now - ts
  67                 self.debug_print("%s -- age is %ds, limit is %ds" % (x, age, limits[x]))
  68                 if age < limits[x]:
  69                     f.write(
  70                         '<TD BGCOLOR="#007010" HEIGHT=100 WIDTH=33% STYLE="text-size:60%; vertical-align: middle;">\n'
  71                     )
  72                 else:
  73                     f.write(
  74                         '<TD BGCOLOR="#990000" HEIGHT=100 WIDTH=33% CLASS="invalid" STYLE="text-size:60%; vertical-align:middle;">\n'
  75                     )
  76                 f.write("  <CENTER><FONT SIZE=-2>\n")
  77
  78                 name = x.replace(timestamps, "")
  79                 name = name.replace("last_", "")
  80                 name = name.replace("_", "&nbsp;")
  81                 duration = utils.describe_duration_briefly(int(age))
  82
  83                 self.debug_print(f"{name} is {duration} old.")
  84                 f.write(f"{name}<BR>\n<B>{ts}</B> old.\n")
  85                 f.write("</FONT></CENTER>\n</TD>\n\n")
  86                 n += 1
  87                 if n % 3 == 0:
  88                     f.write("</TR>\n<TR>\n<!-- ------------------- -->\n")
  89             self.write_footer(f)
  90         return True
  91
  92     def write_header(self, f: file_writer.file_writer) -> None:
  93         f.write(
  94             """
  95 <HTML>
  96 <HEAD>
  97 <STYLE>
  98 @-webkit-keyframes invalid {
  99   from { background-color: #ff6400; }
 100   to { background-color: #ff0000; }
 101   padding-right: 25px;
 102   padding-left: 25px;
 103 }
 104 @-moz-keyframes invalid {
 105   from { background-color: #ff6400; }
 106   to { background-color: #ff0000; }
 107   padding-right: 25px;
 108   padding-left: 25px;
 109 }
 110 @-o-keyframes invalid {
 111   from { background-color: #ff6400; }
 112   to { background-color: #ff0000; }
 113   padding-right: 25px;
 114   padding-left: 25px;
 115 }
 116 @keyframes invalid {
 117   from { background-color: #ff6400; }
 118   to { background-color: #ff0000; }
 119   padding-right: 25px;
 120   padding-left: 25px;
 121 }
 122 .invalid {
 123   -webkit-animation: invalid 1s infinite; /* Safari 4+ */
 124   -moz-animation:    invalid 1s infinite; /* Fx 5+ */
 125   -o-animation:      invalid 1s infinite; /* Opera 12+ */
 126   animation:         invalid 1s infinite; /* IE 10+ */
 127 }
 128 </STYLE>
 129 <meta http-equiv="cache-control" content="max-age=0" />
 130 <meta http-equiv="cache-control" content="no-cache" />
 131 <meta http-equiv="expires" content="0" />
 132 <meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
 133 <meta http-equiv="pragma" content="no-cache" />
 134 </HEAD>
 135 <BODY>
 136 <H1>Periodic Cronjob Health Report</H1>
 137 <HR>
 138 <CENTER>
 139 <TABLE BORDER=0 WIDTH=99% style="font-size:16pt">
 140 <TR>
 141 """
 142         )
 143
 144     def write_footer(self, f: file_writer.file_writer) -> None:
 145         f.write(
 146             """
 147 </TR>
 148 </TABLE>
 149 </BODY>
 150 </HTML>"""
 151         )
 152
 153
 154 # test = periodic_health_renderer({"Test", 123})
 155 # test.periodic_render("Test")