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_history(self, limit=None, offset=None, builder=None, user=None):
  80                 query = "SELECT * FROM builders_history"
  81                 args  = []
  82
  83                 conditions = []
  84
  85                 if builder:
  86                         conditions.append("builder_id = %s")
  87                         args.append(builder.id)
  88
  89                 if user:
  90                         conditions.append("user_id = %s")
  91                         args.append(user.id)
  92
  93                 if conditions:
  94                         query += " WHERE %s" % " AND ".join(conditions)
  95
  96                 query += " ORDER BY time DESC"
  97
  98                 if limit:
  99                         if offset:
 100                                 query += " LIMIT %s,%s"
 101                                 args  += [offset, limit,]
 102                         else:
 103                                 query += " LIMIT %s"
 104                                 args  += [limit,]
 105
 106                 entries = []
 107                 for entry in self.db.query(query, *args):
 108                         entry = logs.BuilderLogEntry(self.pakfire, entry)
 109                         entries.append(entry)
 110
 111                 return entries
 112
 113
 114 class Builder(base.DataObject):
 115         table = "builders"
 116
 117         def __eq__(self, other):
 118                 if isinstance(other, self.__class__):
 119                         return self.id == other.id
 120
 121         def __lt__(self, other):
 122                 if isinstance(other, self.__class__):
 123                         return self.name < other.name
 124
 125         def log(self, action, user=None):
 126                 user_id = None
 127                 if user:
 128                         user_id = user.id
 129
 130                 self.db.execute("INSERT INTO builders_history(builder_id, action, user_id, time) \
 131                         VALUES(%s, %s, %s, NOW())", self.id, action, user_id)
 132
 133         def regenerate_passphrase(self):
 134                 """
 135                         Generates a new random passphrase and stores it as a salted hash
 136                         to the database.
 137
 138                         The new passphrase is returned to be sent to the user (once).
 139                 """
 140                 # Generate a random string with 40 chars.
 141                 passphrase = generate_random_string(length=40)
 142
 143                 # Create salted hash.
 144                 passphrase_hash = generate_password_hash(passphrase)
 145
 146                 # Store the hash in the database.
 147                 self._set_attribute("passphrase", passphrase_hash)
 148
 149                 # Return the clear-text passphrase.
 150                 return passphrase
 151
 152         def validate_passphrase(self, passphrase):
 153                 """
 154                         Compare the given passphrase with the one stored in the database.
 155                 """
 156                 return check_password_hash(passphrase, self.data.passphrase)
 157
 158         # Description
 159
 160         def set_description(self, description):
 161                 self._set_attribute("description", description)
 162
 163         description = property(lambda s: s.data.description or "", set_description)
 164
 165         @property
 166         def keepalive(self):
 167                 """
 168                         Returns time of last keepalive message from this host.
 169                 """
 170                 return self.data.time_keepalive
 171
 172         def update_keepalive(self, loadavg1=None, loadavg5=None, loadavg15=None,
 173                         mem_total=None, mem_free=None, swap_total=None, swap_free=None,
 174                         space_free=None):
 175                 """
 176                         Update the keepalive timestamp of this machine.
 177                 """
 178                 self.db.execute("UPDATE builders SET time_keepalive = NOW(), \
 179                         loadavg1 = %s, loadavg5 = %s, loadavg15 = %s, space_free = %s, \
 180                         mem_total = %s, mem_free = %s, swap_total = %s, swap_free = %s \
 181                         WHERE id = %s", loadavg1, loadavg5, loadavg15, space_free,
 182                         mem_total, mem_free, swap_total, swap_free, self.id)
 183
 184         def update_info(self, cpu_model=None, cpu_count=None, cpu_arch=None, cpu_bogomips=None,
 185                         pakfire_version=None, host_key=None, os_name=None):
 186                 # Update all the rest.
 187                 self.db.execute("UPDATE builders SET time_updated = NOW(), \
 188                         pakfire_version = %s, cpu_model = %s, cpu_count = %s, cpu_arch = %s, \
 189                         cpu_bogomips = %s, host_key_id = %s, os_name = %s WHERE id = %s",
 190                         pakfire_version, cpu_model, cpu_count, cpu_arch, cpu_bogomips,
 191                         host_key, os_name, self.id)
 192
 193         def set_enabled(self, enabled):
 194                 self._set_attribute("enabled", enabled)
 195
 196         enabled = property(lambda s: s.data.enabled, set_enabled)
 197
 198         @property
 199         def disabled(self):
 200                 return not self.enabled
 201
 202         @property
 203         def native_arch(self):
 204                 """
 205                         The native architecture of this builder
 206                 """
 207                 return self.cpu_arch
 208
 209         @lazy_property
 210         def supported_arches(self):
 211                 # Every builder supports noarch
 212                 arches = ["noarch"]
 213
 214                 # We can always build our native architeture
 215                 if self.native_arch:
 216                         arches.append(self.native_arch)
 217
 218                         # Get all compatible architectures
 219                         res = self.db.query("SELECT build_arch FROM arches_compat \
 220                                 WHERE native_arch = %s", self.native_arch)
 221
 222                         for row in res:
 223                                 if not row.build_arch in arches:
 224                                         arches.append(row.build_arch)
 225
 226                 return sorted(arches)
 227
 228         def set_testmode(self, testmode):
 229                 self._set_attribute("testmode", testmode)
 230
 231         testmode = property(lambda s: s.data.testmode, set_testmode)
 232
 233         def set_max_jobs(self, value):
 234                 self._set_attribute("max_jobs", value)
 235
 236         max_jobs = property(lambda s: s.data.max_jobs, set_max_jobs)
 237
 238         @property
 239         def name(self):
 240                 return self.data.name
 241
 242         @property
 243         def hostname(self):
 244                 return self.name
 245
 246         @property
 247         def passphrase(self):
 248                 return self.data.passphrase
 249
 250         # Load average
 251
 252         @property
 253         def loadavg(self):
 254                 return ", ".join(["%.2f" % l for l in (self.loadavg1, self.loadavg5, self.loadavg15)])
 255
 256         @property
 257         def loadavg1(self):
 258                 return self.data.loadavg1 or 0.0
 259
 260         @property
 261         def loadavg5(self):
 262                 return self.data.loadavg5 or 0.0
 263
 264         @property
 265         def loadavg15(self):
 266                 return self.data.loadavg15 or 0.0
 267
 268         @property
 269         def pakfire_version(self):
 270                 return self.data.pakfire_version or ""
 271
 272         @property
 273         def os_name(self):
 274                 return self.data.os_name or ""
 275
 276         @property
 277         def cpu_model(self):
 278                 return self.data.cpu_model or ""
 279
 280         @property
 281         def cpu_count(self):
 282                 return self.data.cpu_count
 283
 284         @property
 285         def cpu_arch(self):
 286                 return self.data.cpu_arch
 287
 288         @property
 289         def cpu_bogomips(self):
 290                 return self.data.cpu_bogomips or 0.0
 291
 292         @property
 293         def mem_percentage(self):
 294                 if not self.mem_total:
 295                         return None
 296
 297                 return self.mem_used * 100 / self.mem_total
 298
 299         @property
 300         def mem_total(self):
 301                 return self.data.mem_total
 302
 303         @property
 304         def mem_used(self):
 305                 if self.mem_total and self.mem_free:
 306                         return self.mem_total - self.mem_free
 307
 308         @property
 309         def mem_free(self):
 310                 return self.data.mem_free
 311
 312         @property
 313         def swap_percentage(self):
 314                 if not self.swap_total:
 315                         return None
 316
 317                 return self.swap_used * 100 / self.swap_total
 318
 319         @property
 320         def swap_total(self):
 321                 return self.data.swap_total
 322
 323         @property
 324         def swap_used(self):
 325                 if self.swap_total and self.swap_free:
 326                         return self.swap_total - self.swap_free
 327
 328         @property
 329         def swap_free(self):
 330                 return self.data.swap_free
 331
 332         @property
 333         def space_free(self):
 334                 return self.data.space_free
 335
 336         @property
 337         def host_key_id(self):
 338                 return self.data.host_key_id
 339
 340         @property
 341         def state(self):
 342                 if self.disabled:
 343                         return "disabled"
 344
 345                 if self.data.time_keepalive is None:
 346                         return "offline"
 347
 348                 #if self.data.updated >= 5*60:
 349                 #       return "offline"
 350
 351                 return "online"
 352
 353         @lazy_property
 354         def active_jobs(self, *args, **kwargs):
 355                 return self.pakfire.jobs.get_active(builder=self, *args, **kwargs)
 356
 357         @property
 358         def too_many_jobs(self):
 359                 """
 360                         Tell if this host is already running enough or too many jobs.
 361                 """
 362                 return len(self.active_jobs) >= self.max_jobs
 363
 364         @lazy_property
 365         def jobqueue(self):
 366                 return self.backend.jobqueue.for_arches(self.supported_arches)
 367
 368         def get_next_job(self):
 369                 """
 370                         Returns the next job in line for this builder.
 371                 """
 372                 # Don't send any jobs to disabled builders
 373                 if not self.enabled:
 374                         return
 375
 376                 # Don't return anything if the builder has already too many jobs running
 377                 if self.too_many_jobs:
 378                         return
 379
 380                 for job in self.jobqueue:
 381                         # Only allow building test jobs in test mode
 382                         if self.testmode and not job.test:
 383                                 continue
 384
 385                         return job
 386
 387         def get_history(self, *args, **kwargs):
 388                 kwargs["builder"] = self
 389
 390                 return self.pakfire.builders.get_history(*args, **kwargs)