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Pingora reverse proxy example

Create a reverse proxy that connects backend HTTP or HTTPs services to a single HTTPs frontend (similar to what is generally done with Nginx) serving distinct SSL certificates (using SNI and the host header) for each backend service.

In this example, if you connect to https://127.0.0.1:4430

  • with an SNI and Host header of somedomain.com, you will be served an SSL certificate to somedomain.com and a proxied connection to http://127.0.0.1:4000.

  • with an SNI and Host header of one.one.one.one, you will be served an SSL certificate to one.one.one.one and a proxied connection to https://one.one.one.one.

Usage

Create some self-signed certificates:

mkdir -p keys &&
openssl req -x509 -sha256 -days 356 -nodes -newkey rsa:2048 -subj "/CN=somedomain.com/C=UK/L=London" -keyout keys/some_domain_key.pem -out keys/some_domain_cert.crt &&
openssl req -x509 -sha256 -days 356 -nodes -newkey rsa:2048 -subj "/CN=one.one.one.one/C=UK/L=London" -keyout keys/one_key.pem -out keys/one_cert.crt

Non root deploy

Without root, you cannot bind to ports 80 and 443 on Linux, so you need to use custom ports and some work arounds on curl.

Start the service.

HTTPS_PORT=4430 HTTP_PORT=8080 cargo run

Start some HTTP server on port 4000, e.g.:

cd $(mktemp -d) && touch somefile && python -m http.server 4000

Play:

  • with HTTPs apps that support SNI, e.g:
curl --connect-to somedomain.com:443:127.0.0.1:4430 https://somedomain.com -vk
curl --connect-to one.one.one.one:443:127.0.0.1:4430 https://one.one.one.one -vk
  • Connect to HTTP first and then be redirected to HTTPS:
curl --connect-to somedomain.com:443:127.0.0.1:4430 --connect-to somedomain.com:80:127.0.0.1:8080 http://somedomain.com -vkL
curl --connect-to one.one.one.one:443:127.0.0.1:4430 --connect-to one.one.one.one:80:127.0.0.1:8080 http://one.one.one.one -vkL
  • with an HTTP only app (does not redirect to HTTPS):
curl --connect-to someotherdomain.com:80:127.0.0.1:8082 http://someotherdomain.com -vk

Privileged deploy

If you have root access, you can allow the binary to bind to ports 80 and 443.

First, build the binary:

cargo build

then allow the binary to bind to ports lower than 1024:

sudo setcap 'cap_net_bind_service=+ep' target/debug/pingora-reverse-proxy

Start the service.

cargo run

Or a single command with cargo watch:

cargo watch -c -x b -s "sudo setcap 'cap_net_bind_service=+ep' target/debug/pingora-reverse-proxy && cargo run"

Another option is to use Podman or Docker, e.g.:

sudo podman --rm -it -p 80:80 -p 443:443 pingora-reverse-proxy && sudo podman --rm -it -p 80:80 -p 443:443 pingora-reverse-proxy

Start some HTTP server on port 4000, e.g.:

cd $(mktemp -d) && touch somefile && python -m http.server 4000

Play:

  • with HTTPs apps that support SNI, e.g:
curl --resolve somedomain.com:443:127.0.0.1 https://somedomain.com -vk
curl --resolve one.one.one.one:443:127.0.0.1 https://one.one.one.one -vk
  • Connect to HTTP first and then be redirected to HTTPS:
curl --resolve somedomain.com:443:127.0.0.1 --resolve somedomain.com:80:127.0.0.1 http://somedomain.com -vkL
curl --resolve one.one.one.one:443:127.0.0.1 --resolve one.one.one.one:80:127.0.0.1 http://one.one.one.one -vkL
  • with an HTTP only app (does not redirect to HTTPS):
curl --connect-to someotherdomain.com:80:127.0.0.1:8082 http://someotherdomain.com -vk

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Pingora reverse proxy example

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Apache-2.0, MIT licenses found

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MIT
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