src/buildservice/builders.py

   1 #!/usr/bin/python
   2
   3 from __future__ import absolute_import, division
   4
   5 import datetime
   6 import hashlib
   7 import logging
   8 import random
   9 import string
  10 import time
  11
  12 from . import base
  13 from . import logs
  14
  15 from .decorators import *
  16
  17 from .users import generate_password_hash, check_password_hash, generate_random_string
  18
  19 class Builders(base.Object):
  20         def _get_builder(self, query, *args):
  21                 res = self.db.get(query, *args)
  22
  23                 if res:
  24                         return Builder(self.backend, res.id, data=res)
  25
  26         def _get_builders(self, query, *args):
  27                 res = self.db.query(query, *args)
  28
  29                 for row in res:
  30                         yield Builder(self.backend, row.id, data=row)
  31
  32         def __iter__(self):
  33                 builders = self._get_builders("SELECT * FROM builders \
  34                         WHERE deleted IS FALSE ORDER BY name")
  35
  36                 return iter(builders)
  37
  38         def create(self, name, user=None, log=True):
  39                 """
  40                         Creates a new builder.
  41                 """
  42                 builder = self._get_builder("INSERT INTO builders(name) \
  43                         VALUES(%s) RETURNING *", name)
  44
  45                 # Generate a new passphrase.
  46                 passphrase = builder.regenerate_passphrase()
  47
  48                 # Log what we have done.
  49                 if log:
  50                         builder.log("created", user=user)
  51
  52                 # The Builder object and the passphrase are returned.
  53                 return builder, passphrase
  54
  55         def auth(self, name, passphrase):
  56                 # If either name or passphrase is None, we don't check at all.
  57                 if None in (name, passphrase):
  58                         return
  59
  60                 # Search for the hostname in the database.
  61                 builder = self._get_builder("SELECT * FROM builders \
  62                         WHERE name = %s AND deleted IS FALSE", name)
  63
  64                 # If the builder was not found or the passphrase does not match,
  65                 # you have bad luck.
  66                 if not builder or not builder.validate_passphrase(passphrase):
  67                         return
  68
  69                 # Otherwise we return the Builder object.
  70                 return builder
  71
  72         def get_by_id(self, builder_id):
  73                 return self._get_builder("SELECT * FROM builders WHERE id = %s", builder_id)
  74
  75         def get_by_name(self, name):
  76                 return self._get_builder("SELECT * FROM builders \
  77                         WHERE name = %s AND deleted IS FALSE", name)
  78
  79         def get_load(self):
  80                 res1 = self.db.get("SELECT SUM(max_jobs) AS max_jobs FROM builders \
  81                         WHERE enabled IS TRUE and deleted IS FALSE")
  82
  83                 res2 = self.db.get("SELECT COUNT(*) AS count FROM jobs \
  84                         WHERE state = 'dispatching' OR state = 'running' OR state = 'uploading'")
  85
  86                 try:
  87                         return (res2.count * 100 / res1.max_jobs)
  88                 except:
  89                         return 0
  90
  91         def get_history(self, limit=None, offset=None, builder=None, user=None):
  92                 query = "SELECT * FROM builders_history"
  93                 args  = []
  94
  95                 conditions = []
  96
  97                 if builder:
  98                         conditions.append("builder_id = %s")
  99                         args.append(builder.id)
 100
 101                 if user:
 102                         conditions.append("user_id = %s")
 103                         args.append(user.id)
 104
 105                 if conditions:
 106                         query += " WHERE %s" % " AND ".join(conditions)
 107
 108                 query += " ORDER BY time DESC"
 109
 110                 if limit:
 111                         if offset:
 112                                 query += " LIMIT %s,%s"
 113                                 args  += [offset, limit,]
 114                         else:
 115                                 query += " LIMIT %s"
 116                                 args  += [limit,]
 117
 118                 entries = []
 119                 for entry in self.db.query(query, *args):
 120                         entry = logs.BuilderLogEntry(self.pakfire, entry)
 121                         entries.append(entry)
 122
 123                 return entries
 124
 125
 126 class Builder(base.DataObject):
 127         table = "builders"
 128
 129         def __eq__(self, other):
 130                 if isinstance(other, self.__class__):
 131                         return self.id == other.id
 132
 133         def __lt__(self, other):
 134                 if isinstance(other, self.__class__):
 135                         return self.name < other.name
 136
 137         def log(self, action, user=None):
 138                 user_id = None
 139                 if user:
 140                         user_id = user.id
 141
 142                 self.db.execute("INSERT INTO builders_history(builder_id, action, user_id, time) \
 143                         VALUES(%s, %s, %s, NOW())", self.id, action, user_id)
 144
 145         def regenerate_passphrase(self):
 146                 """
 147                         Generates a new random passphrase and stores it as a salted hash
 148                         to the database.
 149
 150                         The new passphrase is returned to be sent to the user (once).
 151                 """
 152                 # Generate a random string with 40 chars.
 153                 passphrase = generate_random_string(length=40)
 154
 155                 # Create salted hash.
 156                 passphrase_hash = generate_password_hash(passphrase)
 157
 158                 # Store the hash in the database.
 159                 self._set_attribute("passphrase", passphrase_hash)
 160
 161                 # Return the clear-text passphrase.
 162                 return passphrase
 163
 164         def validate_passphrase(self, passphrase):
 165                 """
 166                         Compare the given passphrase with the one stored in the database.
 167                 """
 168                 return check_password_hash(passphrase, self.data.passphrase)
 169
 170         # Description
 171
 172         def set_description(self, description):
 173                 self._set_attribute("description", description)
 174
 175         description = property(lambda s: s.data.description or "", set_description)
 176
 177         @property
 178         def keepalive(self):
 179                 """
 180                         Returns time of last keepalive message from this host.
 181                 """
 182                 return self.data.time_keepalive
 183
 184         def update_keepalive(self, loadavg1=None, loadavg5=None, loadavg15=None,
 185                         mem_total=None, mem_free=None, swap_total=None, swap_free=None,
 186                         space_free=None):
 187                 """
 188                         Update the keepalive timestamp of this machine.
 189                 """
 190                 self.db.execute("UPDATE builders SET time_keepalive = NOW(), \
 191                         loadavg1 = %s, loadavg5 = %s, loadavg15 = %s, space_free = %s, \
 192                         mem_total = %s, mem_free = %s, swap_total = %s, swap_free = %s \
 193                         WHERE id = %s", loadavg1, loadavg5, loadavg15, space_free,
 194                         mem_total, mem_free, swap_total, swap_free, self.id)
 195
 196         def update_info(self, cpu_model=None, cpu_count=None, cpu_arch=None, cpu_bogomips=None,
 197                         pakfire_version=None, host_key=None, os_name=None):
 198                 # Update all the rest.
 199                 self.db.execute("UPDATE builders SET time_updated = NOW(), \
 200                         pakfire_version = %s, cpu_model = %s, cpu_count = %s, cpu_arch = %s, \
 201                         cpu_bogomips = %s, host_key_id = %s, os_name = %s WHERE id = %s",
 202                         pakfire_version, cpu_model, cpu_count, cpu_arch, cpu_bogomips,
 203                         host_key, os_name, self.id)
 204
 205         def set_enabled(self, enabled):
 206                 self._set_attribute("enabled", enabled)
 207
 208         enabled = property(lambda s: s.data.enabled, set_enabled)
 209
 210         @property
 211         def disabled(self):
 212                 return not self.enabled
 213
 214         @property
 215         def native_arch(self):
 216                 """
 217                         The native architecture of this builder
 218                 """
 219                 return self.cpu_arch
 220
 221         @lazy_property
 222         def supported_arches(self):
 223                 # Every builder supports noarch
 224                 arches = ["noarch"]
 225
 226                 # We can always build our native architeture
 227                 if self.native_arch:
 228                         arches.append(self.native_arch)
 229
 230                         # Get all compatible architectures
 231                         res = self.db.query("SELECT build_arch FROM arches_compat \
 232                                 WHERE native_arch = %s", self.native_arch)
 233
 234                         for row in res:
 235                                 if not row.build_arch in arches:
 236                                         arches.append(row.build_arch)
 237
 238                 return sorted(arches)
 239
 240         def set_testmode(self, testmode):
 241                 self._set_attribute("testmode", testmode)
 242
 243         testmode = property(lambda s: s.data.testmode, set_testmode)
 244
 245         def set_max_jobs(self, value):
 246                 self._set_attribute("max_jobs", value)
 247
 248         max_jobs = property(lambda s: s.data.max_jobs, set_max_jobs)
 249
 250         @property
 251         def name(self):
 252                 return self.data.name
 253
 254         @property
 255         def hostname(self):
 256                 return self.name
 257
 258         @property
 259         def passphrase(self):
 260                 return self.data.passphrase
 261
 262         # Load average
 263
 264         @property
 265         def loadavg(self):
 266                 return ", ".join(["%.2f" % l for l in (self.loadavg1, self.loadavg5, self.loadavg15)])
 267
 268         @property
 269         def loadavg1(self):
 270                 return self.data.loadavg1 or 0.0
 271
 272         @property
 273         def loadavg5(self):
 274                 return self.data.loadavg5 or 0.0
 275
 276         @property
 277         def loadavg15(self):
 278                 return self.data.loadavg15 or 0.0
 279
 280         @property
 281         def pakfire_version(self):
 282                 return self.data.pakfire_version or ""
 283
 284         @property
 285         def os_name(self):
 286                 return self.data.os_name or ""
 287
 288         @property
 289         def cpu_model(self):
 290                 return self.data.cpu_model or ""
 291
 292         @property
 293         def cpu_count(self):
 294                 return self.data.cpu_count
 295
 296         @property
 297         def cpu_arch(self):
 298                 return self.data.cpu_arch
 299
 300         @property
 301         def cpu_bogomips(self):
 302                 return self.data.cpu_bogomips or 0.0
 303
 304         @property
 305         def mem_percentage(self):
 306                 if not self.mem_total:
 307                         return None
 308
 309                 return self.mem_used * 100 / self.mem_total
 310
 311         @property
 312         def mem_total(self):
 313                 return self.data.mem_total
 314
 315         @property
 316         def mem_used(self):
 317                 if self.mem_total and self.mem_free:
 318                         return self.mem_total - self.mem_free
 319
 320         @property
 321         def mem_free(self):
 322                 return self.data.mem_free
 323
 324         @property
 325         def swap_percentage(self):
 326                 if not self.swap_total:
 327                         return None
 328
 329                 return self.swap_used * 100 / self.swap_total
 330
 331         @property
 332         def swap_total(self):
 333                 return self.data.swap_total
 334
 335         @property
 336         def swap_used(self):
 337                 if self.swap_total and self.swap_free:
 338                         return self.swap_total - self.swap_free
 339
 340         @property
 341         def swap_free(self):
 342                 return self.data.swap_free
 343
 344         @property
 345         def space_free(self):
 346                 return self.data.space_free
 347
 348         @property
 349         def overload(self):
 350                 if not self.cpu_count or not self.loadavg1:
 351                         return None
 352
 353                 return self.loadavg1 >= self.cpu_count
 354
 355         @property
 356         def host_key_id(self):
 357                 return self.data.host_key_id
 358
 359         @property
 360         def state(self):
 361                 if self.disabled:
 362                         return "disabled"
 363
 364                 if self.data.time_keepalive is None:
 365                         return "offline"
 366
 367                 #if self.data.updated >= 5*60:
 368                 #       return "offline"
 369
 370                 return "online"
 371
 372         @lazy_property
 373         def active_jobs(self, *args, **kwargs):
 374                 return self.pakfire.jobs.get_active(builder=self, *args, **kwargs)
 375
 376         @property
 377         def too_many_jobs(self):
 378                 """
 379                         Tell if this host is already running enough or too many jobs.
 380                 """
 381                 return len(self.active_jobs) >= self.max_jobs
 382
 383         @lazy_property
 384         def jobqueue(self):
 385                 return self.backend.jobqueue.for_arches(self.supported_arches)
 386
 387         def get_next_job(self):
 388                 """
 389                         Returns the next job in line for this builder.
 390                 """
 391                 # Don't send any jobs to disabled builders
 392                 if not self.enabled:
 393                         return
 394
 395                 # Don't return anything if the builder has already too many jobs running
 396                 if self.too_many_jobs:
 397                         return
 398
 399                 for job in self.jobqueue:
 400                         # Only allow building test jobs in test mode
 401                         if self.testmode and not job.test:
 402                                 continue
 403
 404                         return job
 405
 406         def get_history(self, *args, **kwargs):
 407                 kwargs["builder"] = self
 408
 409                 return self.pakfire.builders.get_history(*args, **kwargs)