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Merge branch 'accelerate_improvements' into devel

Browse source 
Conflicts:
	library/utilities/accelerate
This commit is contained in:
James Cammarata 2013-10-01 21:22:17 -05:00
commit 912e3a7b0b
4 changed files with 166 additions and 69 deletions
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42
lib/ansible/runner/connection_plugins/accelerate.py
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@ -21,7 +21,7 @@ import base64
import socket
import struct
import time
from ansible.callbacks import vvv
from ansible.callbacks import vvv, vvvv
from ansible.runner.connection_plugins.ssh import Connection as SSHConnection
from ansible.runner.connection_plugins.paramiko_ssh import Connection as ParamikoConnection
from ansible import utils
@ -84,12 +84,13 @@ class Connection(object):
utils.AES_KEYS = self.runner.aes_keys
def _execute_accelerate_module(self):
args = "password=%s port=%s" % (base64.b64encode(self.key.__str__()), str(self.accport))
args = "password=%s port=%s debug=%d" % (base64.b64encode(self.key.__str__()), str(self.accport), int(utils.VERBOSITY))
inject = dict(password=self.key)
if self.runner.accelerate_inventory_host:
inject = utils.combine_vars(inject, self.runner.inventory.get_variables(self.runner.accelerate_inventory_host))
else:
inject = utils.combine_vars(inject, self.runner.inventory.get_variables(self.host))
vvvv("attempting to start up the accelerate daemon...")
self.ssh.connect()
tmp_path = self.runner._make_tmp_path(self.ssh)
return self.runner._execute_module(self.ssh, tmp_path, 'accelerate', args, inject=inject)
@ -99,20 +100,22 @@ class Connection(object):
try:
if not self.is_connected:
# TODO: make the timeout and retries configurable?
tries = 3
self.conn = socket.socket()
self.conn.settimeout(300.0)
self.conn.settimeout(constants.ACCELERATE_CONNECT_TIMEOUT)
vvvv("attempting connection to %s via the accelerated port %d" % (self.host,self.accport))
while tries > 0:
try:
self.conn.connect((self.host,self.accport))
break
except:
vvvv("failed, retrying...")
time.sleep(0.1)
tries -= 1
if tries == 0:
vvv("Could not connect via the accelerated connection, exceeded # of tries")
raise errors.AnsibleError("Failed to connect")
self.conn.settimeout(constants.ACCELERATE_TIMEOUT)
except:
if allow_ssh:
vvv("Falling back to ssh to startup accelerated mode")
@ -133,18 +136,24 @@ class Connection(object):
header_len = 8 # size of a packed unsigned long long
data = b""
try:
vvvv("%s: in recv_data(), waiting for the header" % self.host)
while len(data) < header_len:
d = self.conn.recv(1024)
d = self.conn.recv(header_len - len(data))
if not d:
vvvv("%s: received nothing, bailing out" % self.host)
return None
data += d
vvvv("%s: got the header, unpacking" % self.host)
data_len = struct.unpack('Q',data[:header_len])[0]
data = data[header_len:]
vvvv("%s: data received so far (expecting %d): %d" % (self.host,data_len,len(data)))
while len(data) < data_len:
d = self.conn.recv(1024)
d = self.conn.recv(data_len - len(data))
if not d:
vvvv("%s: received nothing, bailing out" % self.host)
return None
data += d
vvvv("%s: received all of the data, returning" % self.host)
return data
except socket.timeout:
raise errors.AnsibleError("timed out while waiting to receive data")
@ -171,11 +180,22 @@ class Connection(object):
if self.send_data(data):
raise errors.AnsibleError("Failed to send command to %s" % self.host)
response = self.recv_data()
if not response:
raise errors.AnsibleError("Failed to get a response from %s" % self.host)
response = utils.decrypt(self.key, response)
response = utils.parse_json(response)
while True:
# we loop here while waiting for the response, because a
# long running command may cause us to receive keepalive packets
# ({"pong":"true"}) rather than the response we want.
response = self.recv_data()
if not response:
raise errors.AnsibleError("Failed to get a response from %s" % self.host)
response = utils.decrypt(self.key, response)
response = utils.parse_json(response)
if "pong" in response:
# it's a keepalive, go back to waiting
vvvv("%s: received a keepalive packet" % self.host)
continue
else:
vvvv("%s: received the response" % self.host)
break
return (response.get('rc',None), '', response.get('stdout',''), response.get('stderr',''))