README
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Cross Origin enabling Reverse Proxy
The Cross Origin enabling Reverse Proxy is a small, fast reverse proxy server, which can enable CORS for services which do not enable it themselves, or remove unwanted or unneeded extra headers from responses.
Motivation
This was built for a search engine where the intention was to lead as much traffic as possible back to the crawled sites by showing the crawled page immediately after the search result.
In order to allow this, CORS headers must be set, and frame options headers must be removed. This is a reverse proxy made especially for that purpose.
Configuration
The service is configured in a proxy.yml file, see configs for details.
Building
Build script details can be found in the scripts folder.
Build local binary by running:
make all
Deployment
Docker
The IMAGE_NAME in the root Makefile specifies the docker image tag used.
Update it as appropriate before building docker images.
Build docker and push images by running:
make docker-build
make docker-push
Helm
The image and virtualHosts should be updated appropriately in
values.yaml.
Once docker images are built and pushed, as seen above, then deploy the service by running:
make helm-install
Attribution
There are many implementations of reverse proxies in Go, and reading them helped in the development of this product. In particular, this post by b0r helped a lot and formed the baseline for the development.
Directories