X-lanni
133 lines
3.7 KiB
Caddyfile
133 lines
3.7 KiB
Caddyfile
# Snippet for global matchers and variables
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# to logically expression request conditions
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# E.g. for conditionally changing redirects
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(globals) {
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# Use gzip compression for all responses
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encode gzip
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# Matcher for http request scheme. E.g. "http" or "https"
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@http_scheme {
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expression {http.request.scheme}=="https" || {header.X-Forwarded-Scheme}=="https" || {header.X-Forwarded-Proto}=="https"
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}
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# If any http scheme is "https", then use "wss"
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vars @http_scheme WsScheme "wss"
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# Else default to "ws"
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vars WsScheme "ws"
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# Matcher for forwarded request headers
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@host_forwarded {
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header X-Forwarded-Host *
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}
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# If http headers exists, then use them
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vars @host_forwarded ReqHost {header.X-Forwarded-Host}
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# Else default to host in request
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vars ReqHost {http.request.hostport}
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# Matcher for websocket connection upgrade requests
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@websockets {
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# Avoid case sensitivity issues when matching field values
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# E.g. when values are rewritten by Codespace port forwarding
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header_regexp Connection (?i)(Upgrade)
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header Upgrade websocket
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}
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}
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# Snippet for redirect with given URL queries values
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# to simplify remote development with web apps
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# E.g auto redirect websocket URL to match request scheme
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(redirect) {
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# Configure redirect to match request scheme
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vars LayoutUrl "/assets/foxglove/nav2_layout.json"
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vars DataSourceUrl "{vars.WsScheme}://{vars.ReqHost}{args.0}/"
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redir /autoconnect "{args.0}/?ds=foxglove-websocket&ds.url={vars.DataSourceUrl}"
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redir /autolayout "{args.0}/?ds=foxglove-websocket&ds.url={vars.DataSourceUrl}&layoutUrl={vars.LayoutUrl}"
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}
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# Snippet for dummy imports
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(dummy) {
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}
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# Snippet for enabling mobile web app features
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# to improve user experience on small screen devices
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# E.g. for enabling fullscreen mode on iOS and Android
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(mobile) {
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# Match for directory redirects to index.html
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route / {
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# Inject link to manifest just after <head> tag
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# https://developer.mozilla.org/docs/Web/Manifest
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replace `<head>` `<head><link rel="manifest" href="manifest.json" crossorigin="use-credentials"/>`
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}
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# Redirect relative handle_path'ed manifest.json to /manifests directory
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redir /manifest.json /assets{http.request.orig_uri.path.dir}manifest.json
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}
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# Snippet for hosted web app using websockets
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# to serve static files and reverse proxying connections
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# E.g. for serving GzWeb and Foxglove web apps
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(app) {
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# handle and strip path prefix from redirect
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handle_path {args.0}/* {
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# Set root directory for static files
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root * {http.vars.root}{args.0}
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# Enable mobile web app features
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import mobile
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# Reverse proxy websockets to backend address
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reverse_proxy @websockets {args.1}
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# Import custom snippets
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import {args.2} {args.0}
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}
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}
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# Listen for http requests on port 8080
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# regardless of hostname or domain address
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# E.g. whatever Codespaces assigns to host
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:8080 {
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# Include global matchers and variables
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import globals
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root * {$ROOT_SRV:/srv}
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file_server browse
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# Handle root content
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# I.e. assets internal to workspace
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handle /* {
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# Template manifest.json files
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templates */manifest.json {
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mime application/json
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}
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}
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# Handle nav2 web app
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# I.e. main landing page
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handle_path /nav2/* {
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root * {http.vars.root}/nav2
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import mobile
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# Render markdown files as html
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templates
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}
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# Matcher for requests without browse query
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@no_browse {
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path /
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not query browse=true
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}
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# Redirect to nav2 web app by default
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redir @no_browse /nav2/
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# Import app snippets for web apps
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import app "/gzweb" "localhost:9090" "dummy"
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import app "/foxglove" "localhost:8765" "redirect"
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# Handle glances web app
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redir /glances /glances/
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handle_path /glances/* {
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import mobile
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# Reverse proxy to glances backend
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reverse_proxy * "localhost:61208"
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}
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# For debugging
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# log {
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# output file /var/log/caddy/server.log
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# }
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}
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