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CloudWatch Events Resource/Property #467

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merged 7 commits into from
Apr 19, 2016
Merged

CloudWatch Events Resource/Property #467

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0f2a3e9
Added CWEvents (Events) support
Apr 19, 2016
e81945f
removed unneeded imports
Apr 19, 2016
c5b84e2
changed name of example
Apr 19, 2016
dfa3d29
fixed test due to example output being wrong
Apr 19, 2016
c8a03e2
slimmed down the test
Apr 19, 2016
4a4873e
slimmed down the test
Apr 19, 2016
08f6108
Removed unused imports
Apr 19, 2016
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91 changes: 91 additions & 0 deletions examples/CloudWatchEvents.py
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from troposphere import Template
from troposphere.events import Rule, Target
from troposphere.iam import Role, Policy
from troposphere.awslambda import Function, Code
from troposphere import GetAtt, Join


t = Template()


# Create a Lambda function that will be mapped
code = [
"var response = require('cfn-response');",
"exports.handler = function(event, context) {",
" context.succeed('foobar!');",
" return 'foobar!';",
"};",
]

# Create a role for the lambda function
t.add_resource(Role(
"LambdaExecutionRole",
Path="/",
Policies=[Policy(
PolicyName="root",
PolicyDocument={
"Version": "2012-10-17",
"Statement": [{
"Action": ["logs:*"],
"Resource": "arn:aws:logs:*:*:*",
"Effect": "Allow"
}, {
"Action": ["lambda:*"],
"Resource": "*",
"Effect": "Allow"
}]
})],
AssumeRolePolicyDocument={"Version": "2012-10-17", "Statement": [
{
"Action": ["sts:AssumeRole"],
"Effect": "Allow",
"Principal": {
"Service": [
"lambda.amazonaws.com",
"apigateway.amazonaws.com"
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You don't need this one ;)

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haha thanks - i haven't contributed to this before so used your PR as a guide :)

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Me neither ;)

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well i guess good luck to both of us 👍

]
}
}
]},
))

# Create the Lambda function
foobar_function = t.add_resource(Function(
"FoobarFunction",
Code=Code(
ZipFile=Join("", code)
),
Handler="index.handler",
Role=GetAtt("LambdaExecutionRole", "Arn"),
Runtime="nodejs",
))

# Create the Event Target
foobar_target = Target(
"FoobarTarget",
Arn=GetAtt('FoobarFunction', 'Arn'),
Id="FooBarFunction1"
)

# Create the Event Rule
rule = Rule(
"FoobarRule",
EventPattern={
"source": [
"aws.ec2"
],
"detail-type": [
"EC2 Instance State-change Notification"
],
"detail": {
"state": [
"stopping"
]
}
},
Description="Foobar CloudWatch Event",
State="ENABLED",
Targets=[foobar_target]
)

print(t.to_json())
79 changes: 79 additions & 0 deletions tests/examples_output/CloudWatchEventsSample.template
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{'Source': ([<type 'basestring'>], True), 'Detail': (<type 'dict'>, True), 'DetailType': ([<type 'basestring'>], True)}
{
"Resources": {
"FoobarFunction": {
"Properties": {
"Code": {
"ZipFile": {
"Fn::Join": [
"",
[
"var response = require('cfn-response');",
"exports.handler = function(event, context) {",
" context.succeed('foobar!');",
" return 'foobar!';",
"};"
]
]
}
},
"Handler": "index.handler",
"Role": {
"Fn::GetAtt": [
"LambdaExecutionRole",
"Arn"
]
},
"Runtime": "nodejs"
},
"Type": "AWS::Lambda::Function"
},
"LambdaExecutionRole": {
"Properties": {
"AssumeRolePolicyDocument": {
"Statement": [
{
"Action": [
"sts:AssumeRole"
],
"Effect": "Allow",
"Principal": {
"Service": [
"lambda.amazonaws.com",
"apigateway.amazonaws.com"
]
}
}
],
"Version": "2012-10-17"
},
"Path": "/",
"Policies": [
{
"PolicyDocument": {
"Statement": [
{
"Action": [
"logs:*"
],
"Effect": "Allow",
"Resource": "arn:aws:logs:*:*:*"
},
{
"Action": [
"lambda:*"
],
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
},
"PolicyName": "root"
}
]
},
"Type": "AWS::IAM::Role"
}
}
}
33 changes: 33 additions & 0 deletions troposphere/events.py
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# Copyright (c) 2013, Mark Peek <mark@peek.org>
# All rights reserved.
#
# See LICENSE file for full license.

from . import AWSObject, AWSProperty, Ref
from .validators import positive_integer, boolean

class Target(AWSProperty):

props = {
'Arn': (basestring, True),
'Id': (basestring, True),
'Input': (basestring, False),
'InputPath': (basestring, False)

}


class Rule(AWSObject):
resource_type = "AWS::Events::Rule"

props = {

'Description': (basestring, False),
'EventPattern': (dict, False),
'Name': (basestring, False),
'RoleArn': (basestring, False),
'ScheduleExpression': (basestring, False),
'State': (basestring, False),
'Targets': ([Target], False)

}