small fixes to syslog callback

- renamed to syslog_json (leaving it open to other syslogs in future)
- moved logger to be part of callback object
- made logger configurable through env variables

plugins/callbacks/syslog_json.py

+import os
+import json
+
+import logging
+import logging.handlers
+
+
+class CallbackModule(object):
+    """
+    logs ansible-playbook and ansible runs to a syslog server in json format
+    make sure you have in ansible.cfg:
+        callback_plugins   = <path_to_callback_plugins_folder>
+    and put the plugin in <path_to_callback_plugins_folder>
+    
+    This plugin makes use of the following environment variables:
+        SYSLOG_SERVER   (optional): defaults to localhost
+        SYSLOG_PORT     (optional): defaults to 514
+    """
+
+    def __init__(self):
+        self.logger =  logging.getLogger('ansible logger')
+        self.logger.setLevel(logging.DEBUG)
+
+        self.handler = logging.handlers.SysLogHandler(
+            address = (os.getenv('SYSLOG_SERVER','locahost'),
+                       os.getenv('SYSLOG_PORT',514)), 
+            facility=logging.handlers.SysLogHandler.LOG_USER
+        )
+        self.logger.addHandler(handler)
+
+    def on_any(self, *args, **kwargs):
+        pass
+
+    def runner_on_failed(self, host, res, ignore_errors=False):
+        self.logger.info('RUNNER_ON_FAILED ' + host + ' ' + json.dumps(res, sort_keys=True))
+
+    def runner_on_ok(self, host, res):
+        self.logger.info('RUNNER_ON_OK ' + host + ' ' + json.dumps(res, sort_keys=True))
+
+    def runner_on_skipped(self, host, item=None):
+        self.logger.info('RUNNER_ON_SKIPPED ' + host + ' ...')
+
+    def runner_on_unreachable(self, host, res):
+        self.logger.info('RUNNER_UNREACHABLE ' + host + ' ' + json.dumps(res, sort_keys=True))
+
+    def runner_on_no_hosts(self):
+        pass
+
+    def runner_on_async_poll(self, host, res):
+        pass
+
+    def runner_on_async_ok(self, host, res):
+        pass
+
+    def runner_on_async_failed(self, host, res):
+        self.logger.info('RUNNER_SYNC_FAILED ' + host + ' ' + json.dumps(res, sort_keys=True))
+
+    def playbook_on_start(self):
+        pass
+
+    def playbook_on_notify(self, host, handler):
+        pass
+
+    def playbook_on_no_hosts_matched(self):
+        pass
+
+    def playbook_on_no_hosts_remaining(self):
+        pass
+
+    def playbook_on_task_start(self, name, is_conditional):
+        pass
+
+    def playbook_on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None):
+        pass
+
+    def playbook_on_setup(self):
+        pass
+
+    def playbook_on_import_for_host(self, host, imported_file):
+        self.logger.info('PLAYBOOK_ON_IMPORTED ' + host + ' ' + json.dumps(res, sort_keys=True))
+
+    def playbook_on_not_import_for_host(self, host, missing_file):
+        self.logger.info('PLAYBOOK_ON_NOTIMPORTED ' + host + ' ' + json.dumps(res, sort_keys=True))
+
+    def playbook_on_play_start(self, name):
+        pass
+
+    def playbook_on_stats(self, stats):
+        pass