|
@@ -0,0 +1,43 @@
|
|
|
|
+#!/usr/bin/python
|
|
|
|
+
|
|
|
|
+import json
|
|
|
|
+import urllib2
|
|
|
|
+import sys
|
|
|
|
+import re
|
|
|
|
+
|
|
|
|
+URL = 'http://169.254.169.254/latest/user-data'
|
|
|
|
+
|
|
|
|
+try:
|
|
|
|
+ data = json.load(urllib2.urlopen(URL))
|
|
|
|
+except:
|
|
|
|
+ print >> sys.stderr, 'Was not able to connect to the Amazon API'
|
|
|
|
+ sys.exit(2)
|
|
|
|
+
|
|
|
|
+# Python doesn't like a list of 1
|
|
|
|
+tags = []
|
|
|
|
+tags.append(data['role'])
|
|
|
|
+
|
|
|
|
+consul_settings = {
|
|
|
|
+ 'data_dir': '/opt/consul/data',
|
|
|
|
+ 'client_addr': '0.0.0.0',
|
|
|
|
+ 'datacenter': data['domain'],
|
|
|
|
+ 'domain': data['domain'],
|
|
|
|
+ 'log_level': "INFO",
|
|
|
|
+ 'enable_script_checks': True,
|
|
|
|
+ 'service': [
|
|
|
|
+ { 'name': data['role'], 'tags': tags, 'checks': [{'args': ['/bin/true'], 'interval': '2s'}] }
|
|
|
|
+ ]
|
|
|
|
+
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+if data['consul_master'] == '127.0.0.1':
|
|
|
|
+ consul_settings['bootstrap_expect'] = 1
|
|
|
|
+else:
|
|
|
|
+ consul_settings['retry_join'] = [data['consul_master']]
|
|
|
|
+
|
|
|
|
+if re.match('consul', data['role']) is not None:
|
|
|
|
+ consul_settings['server'] = True
|
|
|
|
+
|
|
|
|
+main_config = open("/opt/consul/etc/config.json", "w")
|
|
|
|
+main_config.write(json.dumps(consul_settings))
|
|
|
|
+main_config.close()
|