Update slack notify script for Python 3 (#1448)

* Fix Slack notification script for Python 3
* Remove email of stack trace

scripts/slack-notice.py

@@ -2,11 +2,13 @@
 # Post message to Slack
 
 import argparse
-import ConfigParser
 import os
 import requests
 
-from subprocess import Popen, PIPE
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
 
 
 def get_config(args):
@@ -19,7 +21,7 @@ def get_config(args):
     if args.config_file:
         config_file_path = args.config_file
 
-    ini_file = ConfigParser.ConfigParser()
+    ini_file = configparser.ConfigParser()
     ini_file.read(config_file_path)
     return ini_file
 
@@ -31,56 +33,22 @@ def parse_args():
     parser.add_argument('--message', '-m', type=str, help='Message to post')
     parser.add_argument('--config-file', '-f', type=str, help='Path to config file')
     parser.add_argument('--user', '-u', type=str, help='User account that runs Ansibullbot')
-    parser.add_argument('--email-trace', '-e', dest='email_trace', default=False, action='store_true', help='Send an email containing the latest stack trace.')
 
     args = parser.parse_args()
     return args
 
 
-def send_email(email):
-
-    # Get the last few lines of the file
-    with open('/var/log/ansibullbot.log', 'r') as log_file:
-        log_file.seek(0, 2)
-        log_length = log_file.tell()
-        log_file.seek(max(log_length - 4096, 0), 0)
-        lines = log_file.readlines()
-
-    # Return lines before and after the error message
-    block = []
-    for i in range(len(lines)):
-        if 'ERROR Uncaught exception' in lines[i]:
-            block = lines[max(0, i - 20):min(len(lines), i + 20)]
-
-    # Turn the list into a string
-    message = ''.join(block)
-
-    # Send email only if there is a recent stack trace
-    if len(message) > 0:
-        print(email)
-        p = Popen(['mail', '-s', 'Ansibullbot Stack Trace', '-r', 'Ansibullbot<noreply@ansibullbot.eng.ansible.com>', email],
-                  stdin=PIPE,
-                  stdout=PIPE,
-                  stderr=PIPE,
-                  )
-        p.communicate(input=message)
-
-
 def main():
     args = parse_args()
     ini_file = get_config(args)
     url = ini_file.get('defaults', 'slack_url')
-    email = ini_file.get('defaults', 'email')
 
     message = 'Ansibullbot restarted'
     if args.message:
         message = args.message
 
     requests.post(url, json={'text': message})
 
-    if args.email_trace:
-        send_email(email)
-
 
 if __name__ == '__main__':
     main()