Because sometimes you just want to host static content inside an AWS lambda.
All this Go program does is wrap http.FileServer inside an AWS lambda handler that can interpret API Gateway requests, and transforms the response into something API Gateway can return to the browser.
It assumes that the static content is served from /var/www/html, however, that path can be changed with the CONTENT_DIR environment variable.
The Dockerfile in this repo includes an example of how to use this server with the content located in static_demo, however, in production, you could just download the file binary directly without needing to compile it. This would look something like this:
FROM busybox
ADD https://github.com/cds-snc/static-content-lambda/raw/main/release/latest/lambda-static-server /lambda-static-server
RUN chmod 755 /lambda-static-server
WORKDIR /var/www/html
COPY /content ./
ENTRYPOINT ["/lambda-static-server"]
or, if you want to be super slim
FROM busybox as build
ADD https://github.com/cds-snc/static-content-lambda/raw/main/release/latest/lambda-static-server /lambda-static-server
RUN chmod 755 /lambda-static-server
FROM scratch
COPY --from=build /lambda-static-server /lambda-static-server
WORKDIR /var/www/html
COPY /content ./
ENTRYPOINT ["/lambda-static-server"]
MIT