ctubbsii commented on a change in pull request #274: Updates to enable launch
of EC2 instances via user-defined templates
URL: https://github.com/apache/fluo-muchos/pull/274#discussion_r317797177
##########
File path: lib/muchos/ec2.py
##########
@@ -227,3 +238,21 @@ def terminate(self):
print("Removed hosts file at ", self.config.hosts_path)
else:
print("Aborted termination")
+
+
+class Ec2ClusterTemplate(Ec2Cluster):
+
+ def __init__(self, config):
+ Ec2Cluster.__init__(self, config)
+
+ def launch(self):
+ print("Using cluster template '{0}' to launch
nodes".format(self.config.cluster_template_d['id']))
+ super().launch()
+
+ def init_request(self, hostname, services, sg_id):
+ # the first service in the list denotes the node's target template
+ print("Template '{0}' selected for {1}".format(services[0], hostname))
+ # interpolate any values from the ec2 config section and create request
+ ec2_d = dict(self.config.items('ec2'))
+ ec2_d['security_group_id'] = sg_id
Review comment:
If the security group is specified in the template explicitly, muchos will
still create a new security group and delete it on termination... even though
the template never used it. This probably doesn't matter.
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