Merge pull request #455 from openziti/server-guide

add a Linux service guide

docs/guides/linux-service.md

@@ -0,0 +1,142 @@
+---
+title: Linux Service
+sidebar_position: 40
+---
+
+## Goal
+
+Proxy a reserved public subdomain to a backend target with a Linux service.
+
+## How it Works
+
+The `zrok-share` package creates a `zrok-share.service` unit in systemd. The administrator edits the service's configuration file to specify the:
+
+1. zrok environment enable token
+1. target URL or files to be shared and backend mode, e.g. `proxy`
+1. authentication options, if wanted
+
+When the service starts it will:
+
+1. enable the zrok environment unless `/var/lib/zrok-share/.zrok/environment.json` exists
+1. reserve a public subdomain for the service unless `/var/lib/zrok-share/.zrok/reserved.json` exists
+1. start sharing the target specified in the configuration file
+
+## Installation
+
+1. Download the OpenZiti install script.
+
+    ```bash
+    curl -sSo ./openziti-install.bash https://get.openziti.io/install.bash
+    ```
+
+1. Inspect the script to ensure it is suitable to run as root on your system.
+
+    ```bash
+    less ./openziti-install.bash
+    ```
+
+1. Run the script as root to install the `zrok-share` package.
+
+    ```bash
+    sudo bash ./openziti-install.bash zrok-share
+    ```
+
+## Enable
+
+Save the enable token from the zrok console in the configuration file.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_ENABLE_TOKEN="14cbfca9772f"
+```
+
+## Use Cases
+
+You may change the target for the current backend mode, e.g. `proxy`, by editing the configuration file and restarting the service. The reserved subdomain will remain the same.
+
+You may switch between backend modes or change authentication options by deleting `/var/lib/zrok-share/.zrok/reserved.json` and restarting the service. A new subdomain will be reserved.
+
+### Proxy a Web Server
+
+Proxy a reserved subdomain to an existing web server. The web server could be on a private network or on the same host as zrok.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_TARGET="http://127.0.0.1:3000"
+ZROK_BACKEND_MODE="proxy"
+```
+
+### Serve Static Files
+
+Run zrok's embedded web server to serve the files in a directory. If there's an `index.html` file in the directory then visitors will see that web page in their browser, otherwise they'll see a generated index of the files. The directory must be readable by 'other', e.g. `chmod -R o+rX /var/www/html`.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_TARGET="/var/www/html"
+ZROK_BACKEND_MODE="web"
+```
+
+### WebDAV Server
+
+This uses zrok's `drive` backend mode to serve a directory of static files as a WebDAV resource. The directory must be readable by 'other', e.g. `chmod -R o+rX /usr/share/doc`.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_TARGET="/usr/share/doc"
+ZROK_BACKEND_MODE="drive"
+```
+
+### Caddy Server
+
+Use zrok's built-in Caddy server to serve static files or as a reverse proxy to multiple web servers with various HTTP routes or as a load-balanced set. A sample Caddyfile is available in the path shown.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_TARGET="/opt/openziti/etc/zrok/multiple_upstream.Caddyfile"
+ZROK_BACKEND_MODE="caddy"
+```
+
+## Authentication
+
+You can limit access to certain email addresses with OAuth or require a password.
+
+### OAuth
+
+You can require that visitors authenticate with an email address that matches at least one of the suffixes you specify. Add the following to the configuration file.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_OAUTH_PROVIDER="github"  # or google
+ZROK_OAUTH_EMAILS="[email protected] @acme.example.com"
+```
+
+### Password
+
+Enable HTTP basic authentication by adding the following to the configuration file.
+
+```bash title="/opt/openziti/etc/zrok/zrok-share.env"
+ZROK_BASIC_AUTH="user:passwd"
+```
+
+## Start the Service
+
+Start the service, and check the zrok console or the service log for the reserved subdomain.
+
+```bash title="run now and at startup"
+sudo systemctl enable --now zrok-share.service
+```
+
+```bash title="run now"
+sudo systemctl restart zrok-share.service
+```
+
+```bash
+journalctl -u zrok-share.service
+```
+
+## Compatibility
+
+The Linux distribution must have a package manager that understands the `.deb` or `.rpm` format and be running systemd v232 or newer. The service was tested with:
+
+* Ubuntu 20.04, 22.04, 23.04
+* Debian 11 12
+* Rocky 8, 9
+* Fedora 37, 38
+
+## Package Contents
+
+The files included in the `zrok-share` package are sourced [here in GitHub](https://github.com/openziti/zrok/tree/main/nfpm).

docs/guides/self-hosting/_category_.json

@@ -1,6 +1,6 @@
 {
   "label": "Self Hosting",
-  "position": 20,
+  "position": 80,
   "link": {
     "type": "generated-index"
   }