aws-cloudformation-s3

Name: aws-cloudformation-s3
Author: giuseppe-trisciuoglio

71installs36forks

How to install aws-cloudformation-s3?

giuseppe-trisciuoglio/developer-kit/aws-cloudformation-s3

$npx -y skills add giuseppe-trisciuoglio/developer-kit --skill aws-cloudformation-s3

Installs into the current project.

Summary

Provides AWS CloudFormation patterns for Amazon S3. Use when creating S3 buckets, policies, versioning, lifecycle rules, and implementing template structure with Parameters, Outputs, Mappings, Conditions, and cross-stack references.

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SKILL.md

1	# AWS CloudFormation S3 Patterns
2
3	Provides S3 bucket configurations, policies, versioning, lifecycle rules, and CloudFormation template structure best practices for production-ready infrastructure.
4
5	## When to Use
6
7	- Creating S3 buckets with custom configurations
8	- Implementing bucket policies for access control
9	- Configuring S3 versioning for data protection
10	- Setting up lifecycle rules for data management
11	- Creating Outputs for cross-stack references
12	- Using Parameters with AWS-specific types
13	- Organizing templates with Mappings and Conditions
14
15	## Overview
16
17	S3 bucket configurations, policies, versioning, lifecycle rules, and CloudFormation template structure for production-ready infrastructure.
18
19	## Instructions
20
21	1. Define Bucket Resources: Create `AWS::S3::Bucket` with versioning, encryption, PublicAccessBlock
22	2. Configure Bucket Policy: Set up IAM policies for access control
23	3. Set Up Lifecycle Rules: Define transitions and expiration policies
24	4. Configure CORS: Allow cross-origin requests if needed
25	5. Add Outputs: Export bucket names/ARNs for cross-stack references
26
27	Validate before deploy:
28	```bash
29	aws cloudformation validate-template --template-body file://template.yaml
30	```
31
32	Deploy with rollback on failure:
33	```bash
34	aws cloudformation deploy \
35	--template-file template.yaml \
36	--stack-name my-s3-stack \
37	--capabilities CAPABILITY_IAM
38	```
39
40	If deployment fails, CloudFormation automatically rolls back. Check failures with:
41	```bash
42	aws cloudformation describe-stack-events --stack-name my-s3-stack
43	```
44
45	## Quick Reference
46
47	\| Resource Type \| Purpose \|
48	\|---------------\|---------\|
49	\| `AWS::S3::Bucket` \| Create S3 bucket \|
50	\| `AWS::S3::BucketPolicy` \| Set bucket-level policies \|
51	\| `AWS::S3::BucketReplication` \| Cross-region replication \|
52	\| Parameters \| Input values for customization \|
53	\| Mappings \| Static configuration tables \|
54	\| Conditions \| Conditional resource creation \|
55	\| Outputs \| Return values for cross-stack references \|
56
57	## Examples
58
59	### Basic S3 Bucket
60
61	```yaml
62	Resources:
63	DataBucket:
64	Type: AWS::S3::Bucket
65	Properties:
66	BucketName: my-data-bucket
67	```
68
69	### Bucket with Versioning and Encryption
70
71	```yaml
72	DataBucket:
73	Type: AWS::S3::Bucket
74	Properties:
75	BucketName: !Sub "${AWS::StackName}-data"
76	VersioningConfiguration:
77	Status: Enabled
78	BucketEncryption:
79	ServerSideEncryptionConfiguration:
80	- ServerSideEncryptionByDefault:
81	SSEAlgorithm: AES256
82	PublicAccessBlockConfiguration:
83	BlockPublicAcls: true
84	BlockPublicPolicy: true
85	```
86
87	### Lifecycle Rule
88
89	```yaml
90	DataBucket:
91	Type: AWS::S3::Bucket
92	Properties:
93	LifecycleConfiguration:
94	Rules:
95	- Id: ArchiveOldData
96	Status: Enabled
97	Transitions:
98	- StorageClass: GLACIER
99	TransitionInDays: 365
100	```
101
102	### Bucket Policy
103
104	```yaml
105	BucketPolicy:
106	Type: AWS::S3::BucketPolicy
107	Properties:
108	Bucket: !Ref DataBucket
109	PolicyDocument:
110	Statement:
111	- Effect: Allow
112	Principal:
113	AWS: !Ref RoleArn
114	Action:
115	- s3:GetObject
116	Resource: !Sub "${DataBucket.Arn}/*"
117	```
118
119	See [references/complete-examples.md](references/complete-examples.md) for more complete examples including CORS, static websites, replication, and production-ready configurations.
120
121	## Template Structure
122
123	### Template Sections
124
125	```yaml
126	AWSTemplateFormatVersion: 2010-09-09
127	Description: Template description
128
129	Mappings: {} # Static configuration tables
130	Metadata: {} # Additional information
131	Parameters: {} # Input values
132	Conditions: {} # Conditional creation
133	Transform: {} # Macro processing
134	Resources: {} # AWS resources (REQUIRED)
135	Outputs: {} # Return values
136	```
137
138	### Parameters
139
140	```yaml
141	Parameters:
142	BucketName:
143	Type: String
144	Description: S3 bucket name
145	Default: my-bucket
146	MinLength: 3
147	MaxLength: 63
148	AllowedPattern: '^[a-z0-9-]+$'
149	```
150
151	### Conditions
152
153	```yaml
154	Conditions:
155	IsProduction: !Equals [!Ref Environment, prod]
156	ShouldEnableVersioning: !Equals [!Ref EnableVersioning, 'true']
157
158	Resources:
159	DataBucket:
160	Type: AWS::S3::Bucket
161	Properties:
162	VersioningConfiguration:
163	Status: !If [ShouldEnableVersioning, Enabled, Suspended]
164	```
165
166	### Outputs
167
168	```yaml
169	Outputs:
170	BucketName:
171	Description: Name of the S3 bucket
172	Value: !Ref DataBucket
173	Export:
174	Name: !Sub '${AWS::StackName}-BucketName'
175	```
176
177	See [references/advanced-configuration.md](references/advanced-configuration.md) for detailed Mappings, Conditions, Parameters, and cross-stack references.
178
179	## Best Practices
180
181	1. Public Access Block: Always enable for non-stat

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aws-cloudformation-s3

71installs36forks

View on GitHub

How to install aws-cloudformation-s3?

giuseppe-trisciuoglio/developer-kit/aws-cloudformation-s3

$npx -y skills add giuseppe-trisciuoglio/developer-kit --skill aws-cloudformation-s3

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# AWS CloudFormation S3 Patterns
2
3	Provides S3 bucket configurations, policies, versioning, lifecycle rules, and CloudFormation template structure best practices for production-ready infrastructure.
4
5	## When to Use
6
7	- Creating S3 buckets with custom configurations
8	- Implementing bucket policies for access control
9	- Configuring S3 versioning for data protection
10	- Setting up lifecycle rules for data management
11	- Creating Outputs for cross-stack references
12	- Using Parameters with AWS-specific types
13	- Organizing templates with Mappings and Conditions
14
15	## Overview
16
17	S3 bucket configurations, policies, versioning, lifecycle rules, and CloudFormation template structure for production-ready infrastructure.
18
19	## Instructions
20
21	1. Define Bucket Resources: Create `AWS::S3::Bucket` with versioning, encryption, PublicAccessBlock
22	2. Configure Bucket Policy: Set up IAM policies for access control
23	3. Set Up Lifecycle Rules: Define transitions and expiration policies
24	4. Configure CORS: Allow cross-origin requests if needed
25	5. Add Outputs: Export bucket names/ARNs for cross-stack references
26
27	Validate before deploy:
28	```bash
29	aws cloudformation validate-template --template-body file://template.yaml
30	```
31
32	Deploy with rollback on failure:
33	```bash
34	aws cloudformation deploy \
35	--template-file template.yaml \
36	--stack-name my-s3-stack \
37	--capabilities CAPABILITY_IAM
38	```
39
40	If deployment fails, CloudFormation automatically rolls back. Check failures with:
41	```bash
42	aws cloudformation describe-stack-events --stack-name my-s3-stack
43	```
44
45	## Quick Reference
46
47	\| Resource Type \| Purpose \|
48	\|---------------\|---------\|
49	\| `AWS::S3::Bucket` \| Create S3 bucket \|
50	\| `AWS::S3::BucketPolicy` \| Set bucket-level policies \|
51	\| `AWS::S3::BucketReplication` \| Cross-region replication \|
52	\| Parameters \| Input values for customization \|
53	\| Mappings \| Static configuration tables \|
54	\| Conditions \| Conditional resource creation \|
55	\| Outputs \| Return values for cross-stack references \|
56
57	## Examples
58
59	### Basic S3 Bucket
60
61	```yaml
62	Resources:
63	DataBucket:
64	Type: AWS::S3::Bucket
65	Properties:
66	BucketName: my-data-bucket
67	```
68
69	### Bucket with Versioning and Encryption
70
71	```yaml
72	DataBucket:
73	Type: AWS::S3::Bucket
74	Properties:
75	BucketName: !Sub "${AWS::StackName}-data"
76	VersioningConfiguration:
77	Status: Enabled
78	BucketEncryption:
79	ServerSideEncryptionConfiguration:
80	- ServerSideEncryptionByDefault:
81	SSEAlgorithm: AES256
82	PublicAccessBlockConfiguration:
83	BlockPublicAcls: true
84	BlockPublicPolicy: true
85	```
86
87	### Lifecycle Rule
88
89	```yaml
90	DataBucket:
91	Type: AWS::S3::Bucket
92	Properties:
93	LifecycleConfiguration:
94	Rules:
95	- Id: ArchiveOldData
96	Status: Enabled
97	Transitions:
98	- StorageClass: GLACIER
99	TransitionInDays: 365
100	```
101
102	### Bucket Policy
103
104	```yaml
105	BucketPolicy:
106	Type: AWS::S3::BucketPolicy
107	Properties:
108	Bucket: !Ref DataBucket
109	PolicyDocument:
110	Statement:
111	- Effect: Allow
112	Principal:
113	AWS: !Ref RoleArn
114	Action:
115	- s3:GetObject
116	Resource: !Sub "${DataBucket.Arn}/*"
117	```
118
119	See [references/complete-examples.md](references/complete-examples.md) for more complete examples including CORS, static websites, replication, and production-ready configurations.
120
121	## Template Structure
122
123	### Template Sections
124
125	```yaml
126	AWSTemplateFormatVersion: 2010-09-09
127	Description: Template description
128
129	Mappings: {} # Static configuration tables
130	Metadata: {} # Additional information
131	Parameters: {} # Input values
132	Conditions: {} # Conditional creation
133	Transform: {} # Macro processing
134	Resources: {} # AWS resources (REQUIRED)
135	Outputs: {} # Return values
136	```
137
138	### Parameters
139
140	```yaml
141	Parameters:
142	BucketName:
143	Type: String
144	Description: S3 bucket name
145	Default: my-bucket
146	MinLength: 3
147	MaxLength: 63
148	AllowedPattern: '^[a-z0-9-]+$'
149	```
150
151	### Conditions
152
153	```yaml
154	Conditions:
155	IsProduction: !Equals [!Ref Environment, prod]
156	ShouldEnableVersioning: !Equals [!Ref EnableVersioning, 'true']
157
158	Resources:
159	DataBucket:
160	Type: AWS::S3::Bucket
161	Properties:
162	VersioningConfiguration:
163	Status: !If [ShouldEnableVersioning, Enabled, Suspended]
164	```
165
166	### Outputs
167
168	```yaml
169	Outputs:
170	BucketName:
171	Description: Name of the S3 bucket
172	Value: !Ref DataBucket
173	Export:
174	Name: !Sub '${AWS::StackName}-BucketName'
175	```
176
177	See [references/advanced-configuration.md](references/advanced-configuration.md) for detailed Mappings, Conditions, Parameters, and cross-stack references.
178
179	## Best Practices
180
181	1. Public Access Block: Always enable for non-stat

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Type