class Backup():
col_name = "backup"
def __init__(self, id=None, job=None, source=None, target=None):
self.filename = ""
log.clearBuffer()
if(job != None):
self.setJob(job)
if(source != None):
self.setSource(source)
if(target != None):
self.setTarget(target)
self.start_time = self.getTimestamp()
if(id != None):
self.get(id)
def getID(self):
if hasattr(self, "id"):
return self.id
else:
return False
def getAll(self, filter={}, type="object"):
log.write("get all backups", "debug")
docs = self.getDB().getCollection(query=filter)
if(type == "JSON"):
return docs
else:
ret = []
for d in docs:
r = Backup(str(d["_id"]))
ret.append(r)
return ret
def getTarget(self):
if not hasattr(self, "target"):
self.target = Target(self.target_id)
return self.target
def getHost(self):
if not hasattr(self, "source"):
self.source = Target(self.host_id)
return self.target
def get(self, id):
log.write("load backup by id: " + id, "debug")
ret = self.getDB().get(id)
if ret:
for k, v in ret.items():
setattr(self, k, v)
self.id = str(ret["_id"])
del(self._id)
self.exist = True
else:
return False
def getDB(self):
return DB(self.col_name)
def toJSON(self):
r = self
return json.dumps(self, default=lambda o: o.__dict__,
sort_keys=True, indent=4)
def setJob(self, job):
self.job = job
def getJob(self):
if not hasattr(self, "job"):
self.job = Job(self.job)
return self.job
def setTarget(self, target):
self.target = target
def getTarget(self):
if not hasattr(self, "target"):
self.target = Target(self.target_id)
return self.target
def setSource(self, source):
self.source = source
def getSource(self):
if not hasattr(self, "source"):
self.source = Host(self.host_id)
return self.source
def getTimestamp(self):
now = datetime.datetime.now()
ts = now.strftime('%Y-%m-%d_%H-%M-%S')
return ts
def getNewBackupPath(self):
return self.getBackupRoot() + "/" + self.start_time + "-" + self.task.getName() + ".tar.gz"
def getContainerBackupPath(self, name):
return self.getBackupRoot() + "/" + self.start_time + "-" + name + ".tar.gz"
def getStackBackupPath(self, stack, name):
return self.getBackupRootShort() + "/" + stack + "/" + self.start_time + "-" + name + ".tar.gz"
def run(self, task):
self.task = task
log.write("run task: " + str(self.task.getID()))
self.prepare(task)
if(self.task.getType() == "file"):
log.write("init file backup", "notice")
self.filename = self.getNewBackupPath()
self.backupFile()
return True
elif(self.task.getType() == "docker"):
log.write("init docker backup", "notice")
c_ids = []
if self.task.getData("container"):
for container in self.task.getData("container"):
log.write("fetch ids for container name: " + container, "debug")
c_ids = self.source.getContainersByName(container)
if len(c_ids) == 0:
log.write("no matching containers found", "debug")
else:
for id in c_ids:
self.filename = self.getContainerBackupPath(container)
self.backupDockerContainer(id, container)
if self.task.getData("stacks"):
for stack in self.task.getData("stacks"):
log.write("fetch containers for stack name: " + stack, "debug")
c_names = self.source.getContainersByStack(stack)
if len(c_names) == 0:
log.write("no matching containers found", "debug")
else:
for container in c_names:
self.filename = self.getStackBackupPath(stack, container)
for id in self.source.getContainersByName(container):
self.backupDockerContainer(id, container, stack)
self.purgeOld()
log.write("finish docker backup", "debug")
# self.target.openFile(filename)
else:
log.write("error unsupported task type: " + task["type"])
def backupFile(self):
if(not self.target.fileExists(self.getBackupRoot())):
log.write("backup root does not exist. creating: " + self.getBackupRoot())
self.target.createDirectoryRecursive(self.getBackupRoot())
self.target.openFile(self.filename)
self.source.createArchiveFromPaths(self.task.getData())
while True:
data = self.source.readBinary()
if not data:
break
self.target.writeFile(data)
log.write("finish backup")
self.addBackupEntry()
self.target.closeFile()
def backupDockerContainer(self, id, container, stack=None):
log.write("start backup of container %s to %s" % (id, self.filename))
if not self.target.fileExists(os.path.dirname(self.getFilename())):
log.write("backup root does not exist. creating: " + os.path.dirname(self.getFilename()))
self.target.createDirectoryRecursive(os.path.dirname(self.getFilename()))
self.target.openFile(self.getFilename())
self.source.createArchiveFromContainerId(id)
while True:
data = self.source.readBinary()
if not data:
break
self.target.writeFile(data)
self.target.closeFile()
log.write("finish backup of container %s" % (id))
logs = {"container": container}
if not stack == None:
logs["stack"] = stack
self.addBackupEntry(logs)
return True
def exists(self):
if hasattr(self, "exist"):
return self.exist
else:
return False
def getFilename(self):
if hasattr(self, "filename"):
return self.filename
return False
def getSnapshots(self):
log.write("get snapshots")
filter = {
"task_id": self.getTask().getID(),
"host_id": self.getHost().conf.getID(),
"target_id": self.getTarget().conf.getID()
}
ret = self.getDB().find(filter=filter).sort("start_time", 1)
log.write("found %i snapshots" % (ret.count()))
return ret
def deleteOldestSnapshot(self):
id = self.getSnapshots()[0]["_id"]
return Backup(id).delete()
def purgeOld(self):
log.write("purge old backups", "info")
while self.getSnapshots().count() > self.getJob().getMaxSnapshotCount():
self.deleteOldestSnapshot()
return True
def addBackupEntry(self, data={}):
log.write("mark backup as compeleted", "debug")
self.end_time = self.getTimestamp()
doc = {"job_id": str(self.job.getID()),
"filename": self.filename,
"task_id": self.task.getID(),
"host_id": self.source.conf.getID(),
"target_id": self.target.conf.getID(),
"type": self.task.getType(),
"hostname": self.source.conf.getHostname(), "log": log.getBuffer(),"start_time": self.start_time, "end_time": self.end_time}
self.getDB().addDoc(doc)
def restore(self, overwrite=True, replace=False):
if(self.task.getType() == "file"):
log.write("restore backup " + self.getID(), "notice")
self.getTarget().prepare()
self.getTarget().getConnection().openFile(self.getFilename(), "rb")
self.getSource().prepare()
self.getSource().getConnection().restoreArchive()
while True:
data = self.getTarget().getConnection().readBinary()
if not data:
break
self.getSource().getConnection().writeBinary(data)
self.getSource().getConnection().closeFile()
self.getSource().getConnection().syncDirectory()
log.write("restored backup " + self.getID())
else:
log.write("error: restore not supported for this type", "error")
return False
def getBackupRootShort(self):
return "/backup/" + str(self.job.getID()) + "/" + self.task.getID() + "/"
def getBackupRootStack(self, stack):
return "/backup/" + str(self.job.getID()) + "/" + self.task.getID() + "/" + stack + "/"
def getBackupRoot(self):
return "/backup/" + str(self.job.getID()) + "/" + self.task.getID() + "/" + self.source.conf.getHostname() + "/"
def getTask(self):
if hasattr(self, "task"):
return self.task
return False
def prepare(self, task):
self.task = task
def delete(self):
if(not self.exists()):
return True
log.write("delete backup " + str(self.getID()), "debug")
self.getTarget().prepare()
self.getTarget().getConnection().deleteFile(self.getFilename())
return self.getDB().deleteById(self.getID())
class Dump():
col_name = "dump"
cmd = {
"mongodb": {
"dump": "mongodump -o /dumps",
"cred_format": "--uri='%s'",
"db_format": "--db="
},
"mysql": {
"dump": "mysqldump --comments --routines ",
"dump_all":
'mkdir /dumps; cd /dumps; mysql -N -e "show databases" | grep -vE "^(mysql|performance_schema|information_schema)$" | while read dbname; do mysqldump --complete-insert --routines --triggers --single-transaction "$dbname" | gzip > "$dbname".sql.gz; done',
"db_format": "%s"
}
}
def __init__(self, id=None, job=None, source=None, target=None):
self.filename = ""
log.clearBuffer()
if (job != None):
self.setJob(job)
if (source != None):
self.setSource(source)
if (target != None):
self.setTarget(target)
self.start_time = self.getTimestamp()
if (id != None):
self.get(id)
def get(self, id):
log.write("load dump by id: " + id, "debug")
ret = self.getDB().get(id)
if ret:
for k, v in ret.items():
setattr(self, k, v)
self.id = str(ret["_id"])
del (self._id)
self.exist = True
else:
return False
def getAll(self, filter={}, type="object"):
log.write("get all dumps", "debug")
docs = self.getDB().getCollection(query=filter)
if (type == "JSON"):
return docs
else:
ret = []
for d in docs:
r = Dump(str(d["_id"]))
ret.append(r)
return ret
def getCmd(self):
type = self.task.getType()
if type:
return self.cmd[type]
return False
def getTimestamp(self):
now = datetime.datetime.now()
ts = now.strftime('%Y-%m-%d_%H-%M-%S')
return ts
def getDB(self):
return DB(self.col_name)
def exists(self):
if hasattr(self, "exist"):
return self.exist
else:
return False
def getFilename(self):
if hasattr(self, "filename"):
return self.filename
return False
def getSnapshots(self):
log.write("get snapshots")
filter = {
"task_id": self.getTask().getID(),
"host_id": self.getHost().getID(),
"target_id": self.getTarget().getID()
}
ret = self.getDB.find(filter=filter).sort("start_time", 1)
log.write("found %i snapshots" % (ret.count()))
return ret
def deleteOldestSnapshot(self):
id = self.getSnapshots()[0]["_id"]
return Dump(id).delete()
def purgeOld(self):
log.write("purge old dumps", "info")
while self.getSnapshots().count() > self.getJob().getMaxSnapshotCount(
):
self.deleteOldestSnapshot()
return True
def toJSON(self):
r = self
return json.dumps(self,
default=lambda o: o.__dict__,
sort_keys=True,
indent=4)
def getID(self):
if hasattr(self, "id"):
return self.id
else:
return False
def setJob(self, job):
self.job = job
def getJob(self):
if not hasattr(self, "job"):
self.job = Job(self.job)
return self.job
def setTarget(self, target):
self.target = target
def getTarget(self):
if not hasattr(self, "target"):
self.target = Target(self.target_id)
return self.target
def setSource(self, source):
self.source = source
def getSource(self):
if not hasattr(self, "source"):
self.source = Host(self.host_id)
return self.source
def getTarget(self):
if not hasattr(self, "target"):
self.target = Target(self.target_id)
return self.target
def getHost(self):
if not hasattr(self, "host"):
self.host = Target(self.host_id)
return self.target
return ts
def getType(self):
if not hasattr(self, "type"):
return self.type
return False
def getTask(self):
if hasattr(self, "task"):
return self.task
return False
def prepare(self, task):
self.task = task
def delete(self):
if (not self.exists()):
return True
log.write("delete dump " + str(self.getID()), "debug")
self.getTarget().prepare()
self.getTarget().getConnection().deleteFile(self.getFilename())
return self.getDB().deleteById(self.getID())
def run(self, task):
self.task = task
log.write("run task: " + str(self.task.getID()))
self.prepare(task)
if self.task.getData("container"):
for container in self.task.getData("container"):
self.c = self.task.getData("container")[container]
log.write("fetch ids for container name: " + container,
"debug")
c_ids = self.source.getContainersByName(container)
if len(c_ids) == 0:
log.write("no matching containers found", "debug")
else:
for c_id in c_ids:
self.container_id = c_id
if "db" in self.c:
if type(self.c["db"]) is str:
self.c["db"] = [self.c["db"]]
for db in self.c["db"]:
self.container = container
self.filename = self.getDumpFilename(
db=db, container=self.container)
self.backupDB(db=db, container_id=c_id)
else:
self.container = container
self.filename = self.getDumpFilename(
container=self.container)
self.backupDB(container_id=c_id)
if self.task.getData("stacks"):
for stack in self.task.getData("stacks"):
self.c = self.task.getData("stacks")[stack]
log.write("fetch containers for stack name: " + stack, "debug")
c_ids = self.source.getContainersByStack(stack)
if len(c_ids) == 0:
log.write("no matching containers found", "debug")
else:
for c_id in c_ids:
if "db" in self.c:
if type(self.c["db"]) is str:
self.c["db"] = [self.c["db"]]
for db in self.c["db"]:
self.filename = self.getDumpFilename(
db=db, stack=stack)
self.backupDB(db=db, container_id=c_id)
else:
self.filename = self.getDumpFilename(stack=stack)
self.backupDB(container_id=c_id)
def getDumpFilename(self, db=None, container=None, stack=None):
base = "/dumps/" + str(
self.job.getID()) + "/" + self.task.getID() + "/"
if (stack != None):
base += stack + "/"
if (container != None):
base += container + "/"
if (db != None):
filename = self.getTimestamp() + "_" + db
else:
filename = self.getTimestamp() + "_all_databases"
if self.task.getType() == "mongodb":
filename += ".tar"
elif self.task.getType() == "mysql":
filename += ".tar"
return base + filename
def getFilename(self):
if hasattr(self, "filename"):
return self.filename
return False
def backupDB(self, db=None, container_id=None):
state = False
backup_root = os.path.dirname(self.getFilename())
if (not self.target.fileExists(backup_root)):
log.write("dump root does not exist. creating: " + backup_root)
self.target.createDirectoryRecursive(backup_root)
cmd = self.getCmd()["dump"]
if "port" in self.c:
cmd += " --port " + str(self.c["port"])
if (db != None):
cmd += " " + self.getCmd()["db_format"] + db
elif ("dump_all" in self.getCmd()):
cmd = self.getCmd()["dump_all"]
if "gzip" in self.c:
cmd += " | gzip"
self.target.openFile(self.filename)
if (container_id != None):
self.source.execCommandDocker(container_id, cmd, wait=True)
else:
self.source.execCommand(cmd, wait=True)
if (self.task.getType() in ["mongodb", "mysql"]):
data = self.source.read()
if (container_id != None):
self.source.execCommandDocker(
container_id, "tar -Oc /dumps 2>/dev/null | cat")
else:
self.source.execCommand("tar -Oc /dumps 2>/dev/null | cat")
while True:
data = self.source.readBinary()
state = True
if not data:
break
self.target.writeFile(data)
if (self.task.getType() in ["mongodb", "mysql"]):
if (container_id != None):
self.source.execCommandDocker(container_id, "rm -rf /dumps")
else:
self.source.execCommand("rm -rf /dumps")
self.target.closeFile()
if (state == False):
log.write("error: no data received", "error")
self.getTarget().getConnection().deleteFile()
else:
self.addDumpEntry()
log.write("finish dump")
def addDumpEntry(self, data={}):
log.write("mark dump as compeleted", "debug")
self.end_time = self.getTimestamp()
doc = {
"job_id": str(self.job.getID()),
"filename": self.filename,
"task_id": self.task.getID(),
"host_id": self.source.conf.getID(),
"target_id": self.target.conf.getID(),
"type": self.task.getType(),
"hostname": self.source.conf.getHostname(),
"log": log.getBuffer(),
"start_time": self.start_time,
"end_time": self.end_time
}
self.getDB().addDoc(doc)
