docs: 增加 Fly.io 部署文档 (#11721)

* docs: Fly.io deploy instructions

* fix: adopt suggestions

docs/en/install/README.md

@@ -205,6 +205,7 @@ $ yarn start
 ```
 
 Or
+
 ```bash
 $ npm start
 ```
@@ -226,13 +227,15 @@ Refer to our [Guide](https://docs.rsshub.app/en/) for usage. Replace `https://rs
 On arm/arm64, this deployment method does not include puppeteer dependencies. To enable puppeteer, install Chromium from your distribution repositories first, then set `CHROMIUM_EXECUTABLE_PATH` to its executable path.
 
 Debian:
+
 ```bash
-$ apt install chroium
+$ apt install chromium
 $ echo >> .env
 $ echo 'CHROMIUM_EXECUTABLE_PATH=chromium' >> .env
 ```
 
 Ubuntu/Raspbian:
+
 ```bash
 $ apt install chromium-browser
 $ echo >> .env
@@ -298,15 +301,47 @@ Heroku [no longer](https://blog.heroku.com/next-chapter) offers free product pla
 
 ### Automatic deploy upon update
 
-1. [Fork RSSHub](https://github.com/login?return_to=%2FDIYgod%2FRSSHub) to your GitHub account.
+1. [Fork RSSHub](https://github.com/DIYgod/RSSHub/fork) to your GitHub account.
 2. Deploy your fork to Heroku: `https://heroku.com/deploy?template=URL`, where `URL` is your fork address (_e.g._ `https://github.com/USERNAME/RSSHub`).
 3. Configure `automatic deploy` in Heroku app to follow the changes to your fork.
 4. Install [Pull](https://github.com/apps/pull) app to keep your fork synchronized with RSSHub.
 
-## Deploy to Vercel(Zeit Now)
+## Deploy to Vercel (ZEIT Now)
 
 [![Deploy to Vercel](https://vercel.com/button)](https://vercel.com/import/project?template=https://github.com/DIYgod/RSSHub)
 
+## Deploy to Fly.io
+
+1. [Fork RSSHub](https://github.com/DIYgod/RSSHub/fork) to your GitHub account.
+2. Clone the source code from your fork.
+    ```bash
+    $ git clone https://github.com/<your username>/RSSHub.git
+    $ cd RSSHub
+    ```
+3. [Sign up for Fly.io](https://fly.io/app/sign-up) and install the [`flyctl` CLI](https://fly.io/docs/hands-on/install-flyctl/).
+4. Run `flyctl launch` and choose a unique name.
+5. Use `flyctl secrets set KEY=VALUE` to [configure specific routes](#configuration-route-specific-configurations).
+6. [Set up automatic deployment via GitHub Actions](https://fly.io/docs/app-guides/continuous-deployment-with-github-actions/)
+7. Install the [Pull](https://github.com/apps/pull) GitHub app to keep your fork synchronized with upstream.
+
+### Configure built-in Upstash Redis as cache
+
+Run
+
+```bash
+$ flyctl redis create
+```
+
+under the `RSSHub` folder in order to create a new Redis database; [eviction](https://redis.io/docs/reference/eviction/) is recommended to be turned on. After creation is successful, a string in the form of `redis://default:<password>@<domain>.upstash.io` will be printed.
+
+Then run
+
+```bash
+$ flyctl secrets set CACHE_TYPE=redis REDIS_URL='<the printed connection string>'
+```
+
+to configure RSSHub to use this Redis database for caching.
+
 ## Deploy to PikaPods
 
 Run RSSHub from just $1/month. Includes automatic updates and $5 free starting credit.

docs/install/README.md

@@ -231,7 +231,7 @@ $ pm2 start lib/index.js --name rsshub
 Debian:
 
 ```bash
-$ apt install chroium
+$ apt install chromium
 $ echo >> .env
 $ echo 'CHROMIUM_EXECUTABLE_PATH=chromium' >> .env
 ```
@@ -303,15 +303,47 @@ Heroku [不再](https://blog.heroku.com/next-chapter) 提供免费服务。
 
 ### 自动更新部署
 
-1.  将 RSSHub [分叉（fork）](https://github.com/login?return_to=%2FDIYgod%2FRSSHub) 到自己的账户下。
+1.  将 RSSHub [分叉（fork）](https://github.com/DIYgod/RSSHub/fork) 到自己的账户下。
 2.  把自己的分叉部署到 Heroku：`https://heroku.com/deploy?template=URL`，其中 `URL` 改为分叉地址 （例如 `https://github.com/USERNAME/RSSHub`)。
 3.  检查 Heroku 设置，随代码库更新自动部署。
 4.  安装 [Pull](https://github.com/apps/pull) 应用，定期将 RSSHub 改动自动同步至你的分叉。
 
-## 部署到 Vercel (Zeit Now)
+## 部署到 Vercel (ZEIT Now)
 
 [![Deploy to Vercel](https://vercel.com/button)](https://vercel.com/import/project?template=https://github.com/DIYgod/RSSHub)
 
+## 部署到 Fly.io
+
+1.  将 RSSHub [分叉（fork）](https://github.com/DIYgod/RSSHub/fork) 到自己的账户下。
+2.  下载分叉的源码
+    ```bash
+    $ git clone https://github.com/<your username>/RSSHub.git
+    $ cd RSSHub
+    ```
+3.  前往 [Fly.io 完成注册](https://fly.io/app/sign-up)，并安装 [`flyctl` CLI](https://fly.io/docs/hands-on/install-flyctl/)。
+4.  运行 `flyctl launch`, 并选择一个唯一的名称。
+5.  使用 `flyctl secrets set KEY=VALUE` [对部分模块进行配置](#pei-zhi-bu-fen-rss-mo-kuai-pei-zhi)。
+6.  [配置通过 GitHub Actions 自动部署](https://fly.io/docs/app-guides/continuous-deployment-with-github-actions/)
+7.  安装 [Pull](https://github.com/apps/pull) 应用，定期将 RSSHub 改动自动同步至你的分叉。
+
+### 配置内置的 Upstash Redis 缓存
+
+在 `RSSHub` 文件夹下运行
+
+```bash
+$ flyctl redis create
+```
+
+来创建一个新的 Redis 数据库，建议选择开启 [eviction](https://redis.io/docs/reference/eviction/)。创建完成后会输出类似于 `redis://default:<password>@<domain>.upstash.io` 的字符串。
+
+再运行
+
+```bash
+$ flyctl secrets set CACHE_TYPE=redis REDIS_URL='<刚才的连接字符串>'
+```
+
+完成在服务器上的配置。
+
 ## 部署到 PikaPods
 
 每月只需 1 美元即可运行 RSSHub。包括自动更新和 5 美元的免费起始额度。

fly.toml

@@ -0,0 +1,36 @@
+app = "rsshub"
+kill_signal = "SIGINT"
+kill_timeout = 5
+processes = []
+
+[env]
+
+[experimental]
+auto_rollback = true
+
+[[services]]
+http_checks = []
+internal_port = 1200
+processes = ["app"]
+protocol = "tcp"
+script_checks = []
+
+[services.concurrency]
+hard_limit = 25
+soft_limit = 20
+type = "connections"
+
+[[services.ports]]
+force_https = true
+handlers = ["http"]
+port = 80
+
+[[services.ports]]
+handlers = ["tls", "http"]
+port = 443
+
+[[services.tcp_checks]]
+grace_period = "1s"
+interval = "15s"
+restart_limit = 0
+timeout = "2s"