A simple image viewer using AWS Lambda + CloudFront + DynamoDB + S3.

I used to use Flickr as a storage for blog images, but for several reasons (mainly financial), I needed an alternative. Therefore, I am prioritizing the implementation of features that are essential for my personal use.

route: <CDN Domain>/.../foo.jpg

• Provides a standard S3-backed CDN via CloudFront.
• Private mode: Images in the private folder are accessible only with the appropriate token query.

route: <Viewer Domain>/image/.../foo.jpg

• Shows an image info (EXIF).

route: <Viewer Domain>/cameraroll/

• You can list all uploaded images.
• Basic auth.
• Private images (/private/*.jpg): only accessible from camera roll page.

• The viewer does not use ALB but Lambda Function URLs.
• S3-event-driven Tagger gets EXIF by a photo and puts to DynamoDB.

• Serverless Framework v3.34
• Terraform v1.12 or above
• Go 1.21
• AWS

You can also use **env to install easily.

• tsubasaogawa/slsenv
• tfutils/tfenv
• go-nv/goenv

git clone https://github.com/tsubasaogawa/lambda-image-viewer.git

cd src/viewer

# Fix environments. Please follow comments in .env file.
cp -p .env.tmpl .env
vim .env

# Building go binary, deploying lambda
serverless deploy

# Show the deploy information.
serverless info

cd ../../terraform

# Fix environments.
cp -p terraform.tfvars.tmpl terraform.tfvars
vim terraform.tfvars

terraform init
terraform apply

# Deploy Lambda again to set some environment variables using Secrets Manager created by Terraform.
cd ../src/viewer
serverless deploy

aws s3 cp <PHOTO FILE> s3://<CREATED S3 BUCKET>/<FILE NAME>

• Fix design