deployment instructions

Signed-off-by: eternal-flame-AD <yume@yumechi.jp>

README.md

@@ -15,6 +15,7 @@ Work in progress! Currently to do:
 - [X] Cache-Control header
 - [X] Rate-limiting on local deployment (untested)
 - [X] Read config from Cloudflare
+- [X] Timing and Rate-limiting headers (some not available on Cloudflare Workers)
 - [ ] Handle all possible panics reported by Clippy
 - [ ] Sandboxing the image rendering
 
@@ -38,3 +39,33 @@ Image:
 [https://yumechi-no-kuni-proxy-worker.eternal-flame-ad.workers.dev/proxy/static.webp?url=https://upload.wikimedia.org/wikipedia/commons/a/ad/AES-AddRoundKey.svg](https://yumechi-no-kuni-proxy-worker.eternal-flame-ad.workers.dev/proxy/static.webp?url=https://upload.wikimedia.org/wikipedia/commons/a/ad/AES-AddRoundKey.svg)
 
 ![AES-AddRoundKey.svg](https://yumechi-no-kuni-proxy-worker.eternal-flame-ad.workers.dev/proxy/static.webp?url=https://upload.wikimedia.org/wikipedia/commons/a/ad/AES-AddRoundKey.svg)
+
+## Setup and Deployment
+
+1. Clone this repository. Load the submodules with `git submodule update --init`.
+2. Install Rust and Cargo, using [rustup](https://rustup.rs/) is recommended. 
+   If you do not plan on deploying to Cloudflare Workers, you can remove the `rust-toolchain` file intended to get around [cloudflare/worker-rs#668](https://github.com/cloudflare/workers-rs/issues/668). Otherwise you may need to install that specific version of Rust by `rustup install install $(cat rust-toolchain)`.
+3. IF deploying locally:
+   
+      1. Edit `local.toml` to your liking. The documentations can be opened with `cargo doc --open`.
+
+      1. Test run with `cargo run --features env-local -- -c local.toml`.
+
+      1. Build with `cargo build --features env-local --profile release-local`. The built binary will be in `target/release/yumechi-no-kuni-proxy-worker`.
+
+      1. The only flag understood is `-c` for the configuration file. The configuration file is in TOML format. However, the `RUST_LOG` environment variable will change the log level. The log level is `info` by default if the environment variable is not set.
+   
+   IF deploying to Cloudflare Workers:
+
+      1. Add the wasm target with `rustup +$(cat rust-toolchain) target add wasm32-unknown-unknown`.
+
+      1. Have a working JS environment.
+
+      1. Install `wrangler` with you JS package manager of choice. See https://developers.cloudflare.com/workers/wrangler/install-and-update/. `npx` also works.
+   
+      1. Edit `wrangler.toml` to your liking. Everything in the `[vars]` section maps directly into the `config` section of the TOML configuration file.
+
+      1. Test locally with `wrangler dev`.
+
+      1. Deploy with `wrangler deploy --outdir bundled/`.
+

local.toml

@@ -0,0 +1,19 @@
+listen = "127.0.0.1:3000"
+enable_cache = false
+index_redirect = { permanent = false, url = "https://mi.yumechi.jp/" }
+allow_unknown = false
+
+[fetch]
+addr_family = "both"
+allow_http = false
+via = "yumechi-no-kuni-proxy-worker"
+user_agent = "Yumechi-no-Kuni-Proxy-Worker"
+
+[post_process]
+enable_redirects = false
+normalization = "lazy"
+allow_svg_passthrough = true
+
+[rate_limit]
+replenish_every = 2000
+burst = 32