img-site

The creatively named img-site project is a serverless static image hosting site using AWS - you upload images to an input S3 bucket, and static web pages presenting them are generated and served through CloudFront over HTTPS.

Generated pages also include tags to enable media previews on major social networks such as Twitter, Discord, Slack, and anywhere else that supports OpenGraph.

You can see an example here, or see below for more details and deployment instructions.

Diagram

┌────► Uploader             ┌───────────────┐  Access  ┌────────────┐
│          │                │               │  logs    │            │
│          │                │ LoggingBucket │◄─────────┤ CloudFront │◄─────── Viewer
│          │                │               │          │            │
│          │ Image          └───────────────┘          └────────────┘
│          │ upload                                           ▲
│          │                                                  │
│          │                                                  │
│          ▼                                                  ▼
│  ┌──────────────┐        ┌────────────────┐         ┌───────────────┐
│  │              │        │                │         │               │
│  │ UploadBucket ├───────►│ IngestFunction ├────────►│ HostingBucket │
│  │              │        │                ├───┐     │               │
│  └──────────────┘        └────────────────┘   │     └───────────────┘
│                           Generate HTML       └────┐
│                           Upload to HostingBucket  │
│                           Send SNS notification    │
│                                                    │
└────────────────────────────────────────────────────┘
      SNS email notification with generated link

Parameters

Parameter	Description	Example
UploadBucketName	Name of the upload S3 bucket to create	img-bucket-name
EmailNotificationEnabled	Whether to enable email notification on image processing completion - true or false	true
NotificationEmail	Email address to notify on processing completion	someone@example.com
SiteName	Name for site - used in HTML template for title	CoolImages
NoDomain	If true, a custom domain and certificate is not attached to the CloudFront distribution - useful for testing purposes	false
Domain	Domain name that the image site will be hosted on (ignored if NoDomain is true)	img.example.com
CertArn	ARN of the ACM certificate to use with the CloudFront distribution (ignored if NoDomain is true) - note: must be in the us-east-1 region	arn:aws:acm:us-east-1:0123456789:certificate/abc-1234-def
CreateUploadIamUser	Whether to create an IAM user for upload to the ingest bucket - user created if true	false
CloudFrontRedirectFunctionName	Name for the CloudFront redirect function - can leave as default unless you're deploying multiple copies of this stack	img_site_folder_index_redirect
CloudFrontCachePolicyName	Name for the CloudFront cache policy - can leave as default unless you're deploying multiple copies of this stack	img-site-cache-policy

Deploy

# Build and deploy SAM stack
sam build --use-container
sam deploy --guided

# Now upload error.html and robots.txt to the deployed HostingBucket
aws s3 cp error.html robots.txt s3://<name of HostingBucket>/

Once the stack is deployed, you can then add the appropriate DNS (eg Route 53) entries for your domain to point it at the created CloudFront distribution (assuming NoDomain is false).

You can then upload images to the UploadBucket for processing, and will receive email notifications (assuming EmailNotificationEnabled is true) once complete with a link to the generated static page on your img-site.