[test_ec2*] cloud integration test updates

To support parallel cloud test execution, create and provide a random string to
cloud integration tests.  The variable 'resource_prefix' can be used in cloud
roles and during resource cleanup to safely create/destroy cloud-based
resources.

Additional changes include:

 * The roles test_ec2_key and test_ec2_group were updated to use to
 {{resource_prefix}}.

 * Additionally, the Makefile was updated to set resource_prefix to a random
 string.  The Makefile will also use 'resource_prefix' during cloud_cleanup.

 * All test_ec2* roles were updated to add 'setup_ec2' as a role dependency.

test/integration/Makefile

@@ -1,6 +1,11 @@
 INVENTORY ?= inventory
 VARS_FILE ?= integration_config.yml
 
+# Create a semi-random string for use when testing cloud-based resources
+ifndef CLOUD_RESOURCE_PREFIX
+CLOUD_RESOURCE_PREFIX := $(shell python -c "import string,random; print 'ansible-testing-' + ''.join(random.choice(string.ascii_letters + string.digits) for _ in xrange(8));")
+endif
+
 all: non_destructive destructive check_mode test_hash
 
 non_destructive:
@@ -21,24 +26,24 @@ cloud: amazon rackspace
 cloud_cleanup: amazon_cleanup rackspace_cleanup
 
 amazon_cleanup:
-	python cleanup_ec2.py -y
+	python cleanup_ec2.py -y --match="^$(CLOUD_RESOURCE_PREFIX)"
 
 rackspace_cleanup:
 	@echo "FIXME - cleanup_rax.py not yet implemented"
-	@#python cleanup_rax.py -y
+	@# python cleanup_rax.py -y --match="^$(CLOUD_RESOURCE_PREFIX)"
 
 credentials.yml:
 	@echo "No credentials.yml file found.  A file named 'credentials.yml' is needed to provide credentials needed to run cloud tests.  See sample 'credentials.template' file."
 	@exit 1
 
 amazon: credentials.yml
-	ansible-playbook amazon.yml -i $(INVENTORY) -e @$(VARS_FILE) -e @credentials.yml -v $(TEST_FLAGS) ; \
+	ansible-playbook amazon.yml -i $(INVENTORY) -e @$(VARS_FILE) -e @credentials.yml -e "resource_prefix=$(CLOUD_RESOURCE_PREFIX)" -v $(TEST_FLAGS) ; \
     RC=$$? ; \
-    make amazon_cleanup ; \
+    CLOUD_RESOURCE_PREFIX="$(CLOUD_RESOURCE_PREFIX)" make amazon_cleanup ; \
     exit $$RC;
 
 rackspace: credentials.yml
-	ansible-playbook rackspace.yml -i $(INVENTORY) -e @$(VARS_FILE) -e @credentials.yml -v $(TEST_FLAGS) ; \
+	ansible-playbook rackspace.yml -i $(INVENTORY) -e @$(VARS_FILE) -e @credentials.yml -e "resource_prefix=$(CLOUD_RESOURCE_PREFIX)" -v $(TEST_FLAGS) ; \
     RC=$$? ; \
-    make rackspace_cleanup ; \
+    CLOUD_RESOURCE_PREFIX="$(CLOUD_RESOURCE_PREFIX)" make rackspace_cleanup ; \
     exit $$RC;

test/integration/cleanup_ec2.py

@@ -15,7 +15,7 @@ def delete_aws_resources(get_func, attr, opts):
     for item in get_func():
         val = getattr(item, attr)
         if re.search(opts.match_re, val):
-            prompt_and_delete(item, "Delete object with %s=%s? [y/n]: " % (attr, val), opts.assumeyes)
+            prompt_and_delete(item, "Delete matching %s? [y/n]: " % (item,), opts.assumeyes)
 
 def prompt_and_delete(item, prompt, assumeyes):
     if not assumeyes:
@@ -23,6 +23,7 @@ def prompt_and_delete(item, prompt, assumeyes):
     assert hasattr(item, 'delete'), "Class <%s> has no delete attribute" % item.__class__
     if assumeyes:
         item.delete()
+        print ("Deleted %s" % item)
 
 def parse_args():
     # Load details from credentials.yml
@@ -74,8 +75,11 @@ if __name__ == '__main__':
     aws = boto.connect_ec2(aws_access_key_id=opts.ec2_access_key,
             aws_secret_access_key=opts.ec2_secret_key)
 
+    try:
         # Delete matching keys
         delete_aws_resources(aws.get_all_key_pairs, 'name', opts)
 
         # Delete matching groups
         delete_aws_resources(aws.get_all_security_groups, 'name', opts)
+    except KeyboardInterrupt, e:
+        print "\nExiting on user command."

test/integration/roles/setup_ec2/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+resource_prefix: 'ansible-testing-'

test/integration/roles/test_ec2/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_ami/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_eip/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_elb/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_elb_lb/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_facts/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_group/defaults/main.yml

@@ -1,5 +1,5 @@
 ---
 # defaults file for test_ec2_group
-ec2_group_name: 'ansible-testing-{{ random_string }}'
+ec2_group_name: '{{resource_prefix}}'
 ec2_group_description: 'Created by ansible integration tests'
 

test/integration/roles/test_ec2_key/defaults/main.yml

@@ -1,3 +1,3 @@
 ---
 # defaults file for test_ec2_key
-ec2_key_name: 'ansible-testing-{{ random_string }}'
+ec2_key_name: '{{resource_prefix}}'

test/integration/roles/test_ec2_tag/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_vol/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2

test/integration/roles/test_ec2_vpc/meta/main.yml

@@ -1,3 +1,3 @@
 dependencies:
   - prepare_tests
-
+  - setup_ec2