aws-cloudformation-lambda

Name: aws-cloudformation-lambda
Author: giuseppe-trisciuoglio

71installs36forks

How to install aws-cloudformation-lambda?

giuseppe-trisciuoglio/developer-kit/aws-cloudformation-lambda

$npx -y skills add giuseppe-trisciuoglio/developer-kit --skill aws-cloudformation-lambda

Installs into the current project.

Summary

Provides AWS CloudFormation patterns for Lambda functions, layers, API Gateway integration, event sources, cold start optimization, monitoring, logging, template validation, and deployment workflows. Use when creating Lambda functions with CloudFormation, configuring event source

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SKILL.md

1	# AWS CloudFormation Lambda Functions
2
3	## Overview
4
5	Create production-ready Lambda functions using CloudFormation templates with validation and deployment workflows.
6
7	## When to Use
8
9	- Creating Lambda functions with CloudFormation
10	- Configuring event sources (S3, SQS, DynamoDB, Kinesis)
11	- Implementing Lambda layers and cold start optimization
12	- Integrating Lambda with API Gateway
13	- Deploying Lambda infrastructure with validation
14
15	## Deployment Workflow
16
17	Always follow this deployment workflow:
18
19	### 1. Validate Template
20	```bash
21	aws cloudformation validate-template --template-body file://template.yaml
22	```
23
24	### 2. Deploy Stack
25	```bash
26	aws cloudformation deploy \
27	--template-file template.yaml \
28	--stack-name my-lambda-stack \
29	--capabilities CAPABILITY_IAM \
30	--parameter-overrides Environment=prod
31	```
32
33	### 3. Monitor Stack Events
34	```bash
35	aws cloudformation describe-stack-events \
36	--stack-name my-lambda-stack \
37	--query 'StackEvents[?ResourceStatus==`CREATE_FAILED`\|\|ResourceStatus==`UPDATE_FAILED`]'
38	```
39
40	### 4. Verify Resources
41	```bash
42	aws lambda get-function --function-name my-lambda-stack-function
43	aws cloudformation describe-stacks --stack-name my-lambda-stack \
44	--query 'Stacks[0].StackStatus'
45	```
46
47	### 5. Rollback on Failure
48	```bash
49	aws cloudformation delete-stack --stack-name my-lambda-stack
50	aws logs describe-log-groups --log-group-name-prefix "/aws/lambda/my-lambda"
51	```
52
53	## Instructions
54
55	Follow these steps to create Lambda functions with CloudFormation:
56
57	### 1. Define Lambda Function Parameters
58
59	Specify runtime, memory, timeout, and environment variables:
60
61	```yaml
62	Parameters:
63	FunctionMemory:
64	Type: Number
65	Default: 256
66	AllowedValues:
67	- 128
68	- 256
69	- 512
70	- 1024
71	- 2048
72	Description: Lambda function memory in MB
73
74	FunctionTimeout:
75	Type: Number
76	Default: 30
77	MinValue: 1
78	MaxValue: 900
79	Description: Function timeout in seconds
80
81	Runtime:
82	Type: String
83	Default: nodejs20.x
84	AllowedValues:
85	- nodejs20.x
86	- python3.11
87	- java21
88	- dotnet8
89	- go1.x
90	Description: Lambda runtime environment
91	```
92
93	### 2. Create Lambda Function
94
95	Define the basic function configuration:
96
97	```yaml
98	Resources:
99	LambdaFunction:
100	Type: AWS::Lambda::Function
101	Properties:
102	FunctionName: !Sub "${AWS::StackName}-function"
103	Runtime: !Ref Runtime
104	Handler: index.handler
105	Role: !Ref ExecutionRole
106	MemorySize: !Ref FunctionMemory
107	Timeout: !Ref FunctionTimeout
108	Code:
109	S3Bucket: !Ref CodeBucket
110	S3Key: !Ref CodeKey
111	Environment:
112	Variables:
113	LOG_LEVEL: INFO
114	DATABASE_URL: !Ref DatabaseUrl
115	Tags:
116	- Key: Environment
117	Value: !Ref Environment
118	```
119
120	### 3. Configure Execution Role
121
122	Apply least privilege IAM policies:
123
124	```yaml
125	Resources:
126	ExecutionRole:
127	Type: AWS::IAM::Role
128	Properties:
129	AssumeRolePolicyDocument:
130	Version: "2012-10-17"
131	Statement:
132	- Effect: Allow
133	Principal:
134	Service: lambda.amazonaws.com
135	Action: sts:AssumeRole
136	ManagedPolicyArns:
137	- arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
138	Policies:
139	- PolicyName: S3ReadAccess
140	PolicyDocument:
141	Version: "2012-10-17"
142	Statement:
143	- Effect: Allow
144	Action:
145	- s3:GetObject
146	Resource: !Sub "${DataBucket.Arn}/*"
147	```
148
149	### 4. Add Event Sources
150
151	Configure triggers for Lambda invocation:
152
153	```yaml
154	Resources:
155	# S3 event source
156	S3EventSource:
157	Type: AWS::Lambda::EventSourceMapping
158	Properties:
159	EventSourceArn: !GetAtt DataBucket.Arn
160	FunctionName: !Ref LambdaFunction
161
162	# SQS event source
163	SQSEventSource:
164	Type: AWS::Lambda::EventSourceMapping
165	Properties:
166	EventSourceArn: !GetAtt Queue.Arn
167	FunctionName: !Ref LambdaFunction
168	BatchSize: 10
169	MaximumBatchingWindowInSeconds: 5
170	```
171
172	### 5. Configure API Gateway Integration
173
174	Set up REST or HTTP API integration:
175
176	```yaml
177	Resources:
178	# HTTP API integration
179	HttpApi:
180	Type: AWS::ApiGatewayV2::Api
181	Properties:
182	Name: !Sub "${AWS::StackName}-api"
183	ProtocolType: HTTP
184	Target: !Ref LambdaFunction
185
186	ApiIntegration:
187	Type: AWS::ApiGatewayV2::Integration
188	Properties:
189	ApiId: !Ref HttpApi
190	IntegrationType: AWS_PROXY
191	IntegrationUri: !Sub "arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/f

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aws-cloudformation-lambda

71installs36forks

View on GitHub

How to install aws-cloudformation-lambda?

giuseppe-trisciuoglio/developer-kit/aws-cloudformation-lambda

$npx -y skills add giuseppe-trisciuoglio/developer-kit --skill aws-cloudformation-lambda

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# AWS CloudFormation Lambda Functions
2
3	## Overview
4
5	Create production-ready Lambda functions using CloudFormation templates with validation and deployment workflows.
6
7	## When to Use
8
9	- Creating Lambda functions with CloudFormation
10	- Configuring event sources (S3, SQS, DynamoDB, Kinesis)
11	- Implementing Lambda layers and cold start optimization
12	- Integrating Lambda with API Gateway
13	- Deploying Lambda infrastructure with validation
14
15	## Deployment Workflow
16
17	Always follow this deployment workflow:
18
19	### 1. Validate Template
20	```bash
21	aws cloudformation validate-template --template-body file://template.yaml
22	```
23
24	### 2. Deploy Stack
25	```bash
26	aws cloudformation deploy \
27	--template-file template.yaml \
28	--stack-name my-lambda-stack \
29	--capabilities CAPABILITY_IAM \
30	--parameter-overrides Environment=prod
31	```
32
33	### 3. Monitor Stack Events
34	```bash
35	aws cloudformation describe-stack-events \
36	--stack-name my-lambda-stack \
37	--query 'StackEvents[?ResourceStatus==`CREATE_FAILED`\|\|ResourceStatus==`UPDATE_FAILED`]'
38	```
39
40	### 4. Verify Resources
41	```bash
42	aws lambda get-function --function-name my-lambda-stack-function
43	aws cloudformation describe-stacks --stack-name my-lambda-stack \
44	--query 'Stacks[0].StackStatus'
45	```
46
47	### 5. Rollback on Failure
48	```bash
49	aws cloudformation delete-stack --stack-name my-lambda-stack
50	aws logs describe-log-groups --log-group-name-prefix "/aws/lambda/my-lambda"
51	```
52
53	## Instructions
54
55	Follow these steps to create Lambda functions with CloudFormation:
56
57	### 1. Define Lambda Function Parameters
58
59	Specify runtime, memory, timeout, and environment variables:
60
61	```yaml
62	Parameters:
63	FunctionMemory:
64	Type: Number
65	Default: 256
66	AllowedValues:
67	- 128
68	- 256
69	- 512
70	- 1024
71	- 2048
72	Description: Lambda function memory in MB
73
74	FunctionTimeout:
75	Type: Number
76	Default: 30
77	MinValue: 1
78	MaxValue: 900
79	Description: Function timeout in seconds
80
81	Runtime:
82	Type: String
83	Default: nodejs20.x
84	AllowedValues:
85	- nodejs20.x
86	- python3.11
87	- java21
88	- dotnet8
89	- go1.x
90	Description: Lambda runtime environment
91	```
92
93	### 2. Create Lambda Function
94
95	Define the basic function configuration:
96
97	```yaml
98	Resources:
99	LambdaFunction:
100	Type: AWS::Lambda::Function
101	Properties:
102	FunctionName: !Sub "${AWS::StackName}-function"
103	Runtime: !Ref Runtime
104	Handler: index.handler
105	Role: !Ref ExecutionRole
106	MemorySize: !Ref FunctionMemory
107	Timeout: !Ref FunctionTimeout
108	Code:
109	S3Bucket: !Ref CodeBucket
110	S3Key: !Ref CodeKey
111	Environment:
112	Variables:
113	LOG_LEVEL: INFO
114	DATABASE_URL: !Ref DatabaseUrl
115	Tags:
116	- Key: Environment
117	Value: !Ref Environment
118	```
119
120	### 3. Configure Execution Role
121
122	Apply least privilege IAM policies:
123
124	```yaml
125	Resources:
126	ExecutionRole:
127	Type: AWS::IAM::Role
128	Properties:
129	AssumeRolePolicyDocument:
130	Version: "2012-10-17"
131	Statement:
132	- Effect: Allow
133	Principal:
134	Service: lambda.amazonaws.com
135	Action: sts:AssumeRole
136	ManagedPolicyArns:
137	- arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
138	Policies:
139	- PolicyName: S3ReadAccess
140	PolicyDocument:
141	Version: "2012-10-17"
142	Statement:
143	- Effect: Allow
144	Action:
145	- s3:GetObject
146	Resource: !Sub "${DataBucket.Arn}/*"
147	```
148
149	### 4. Add Event Sources
150
151	Configure triggers for Lambda invocation:
152
153	```yaml
154	Resources:
155	# S3 event source
156	S3EventSource:
157	Type: AWS::Lambda::EventSourceMapping
158	Properties:
159	EventSourceArn: !GetAtt DataBucket.Arn
160	FunctionName: !Ref LambdaFunction
161
162	# SQS event source
163	SQSEventSource:
164	Type: AWS::Lambda::EventSourceMapping
165	Properties:
166	EventSourceArn: !GetAtt Queue.Arn
167	FunctionName: !Ref LambdaFunction
168	BatchSize: 10
169	MaximumBatchingWindowInSeconds: 5
170	```
171
172	### 5. Configure API Gateway Integration
173
174	Set up REST or HTTP API integration:
175
176	```yaml
177	Resources:
178	# HTTP API integration
179	HttpApi:
180	Type: AWS::ApiGatewayV2::Api
181	Properties:
182	Name: !Sub "${AWS::StackName}-api"
183	ProtocolType: HTTP
184	Target: !Ref LambdaFunction
185
186	ApiIntegration:
187	Type: AWS::ApiGatewayV2::Integration
188	Properties:
189	ApiId: !Ref HttpApi
190	IntegrationType: AWS_PROXY
191	IntegrationUri: !Sub "arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/f

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Type