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services: nginx: Add lua module.
* gnu/services/web.scm (<nginx-configuration>) [lua-package-path, lua-package-cpath]: New record types. * gnu/services/web.scm (default-nginx-config): Use them. * doc/guix.texi (Web Services): Document this. * doc/guix-cookbook.texi (System Configuration): Document this.
This commit is contained in:
Oleg Pykhalov
parent
e835c03e44
commit
00014f7692
3 changed files with 101 additions and 6 deletions
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@ -1353,6 +1353,7 @@ reference.
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* Running Guix on a Linode Server:: Running Guix on a Linode Server
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* Setting up a bind mount:: Setting up a bind mount in the file-systems definition.
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* Getting substitutes from Tor:: Configuring Guix daemon to get substitutes through Tor.
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* Setting up NGINX with Lua:: Configuring NGINX web-server to load Lua modules.
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@end menu
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@node Customizing the Kernel
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@ -2114,6 +2115,63 @@ sudo herd set-http-proxy guix-daemon http://localhost:9250
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guix build --substitute-urls=https://bp7o7ckwlewr4slm.onion …
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@end example
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@node Setting up NGINX with Lua
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@section Setting up NGINX with Lua
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@cindex nginx, lua, openresty, resty
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NGINX could be extended with Lua scripts.
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Guix provides NGINX service with ability to load Lua module and specific
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Lua packages, and reply to requests by evaluating Lua scripts.
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The following example demonstrates system definition with configuration
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to evaluate @file{index.lua} Lua script on HTTP request to
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@uref{http://localhost/hello} endpoint:
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@example
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local shell = require "resty.shell"
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local stdin = ""
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local timeout = 1000 -- ms
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local max_size = 4096 -- byte
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local ok, stdout, stderr, reason, status =
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shell.run([[/run/current-system/profile/bin/ls /tmp]], stdin, timeout, max_size)
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ngx.say(stdout)
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@end example
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@lisp
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(use-modules (gnu))
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(use-service-modules #;… web)
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(use-package-modules #;… lua)
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(operating-system
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;; …
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(services
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;; …
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(service nginx-service-type
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(nginx-configuration
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(modules
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(list
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(file-append nginx-lua-module "/etc/nginx/modules/ngx_http_lua_module.so")))
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(lua-package-path (list lua-resty-core
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lua-resty-lrucache
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lua-resty-signal
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lua-tablepool
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lua-resty-shell))
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(lua-package-cpath (list lua-resty-signal))
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(server-blocks
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(list (nginx-server-configuration
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(server-name '("localhost"))
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(listen '("80"))
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(root "/etc")
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(locations (list
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(nginx-location-configuration
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(uri "/hello")
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(body (list #~(format #f "content_by_lua_file ~s;"
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#$(local-file "index.lua"))))))))))))))
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@end lisp
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@c *********************************************************************
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@node Advanced package management
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@chapter Advanced package management
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@ -21984,7 +21984,29 @@ names of loadable modules, as in this example:
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(modules
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(list
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(file-append nginx-accept-language-module "\
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/etc/nginx/modules/ngx_http_accept_language_module.so")))
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/etc/nginx/modules/ngx_http_accept_language_module.so")
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(file-append nginx-lua-module "\
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/etc/nginx/modules/ngx_http_lua_module.so")))
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@end lisp
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@item @code{lua-package-path} (default: @code{'()})
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List of nginx lua packages to load. This should be a list of package
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names of loadable lua modules, as in this example:
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@lisp
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(lua-package-path (list lua-resty-core
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lua-resty-lrucache
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lua-resty-signal
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lua-tablepool
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lua-resty-shell))
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@end lisp
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@item @code{lua-package-cpath} (default: @code{'()})
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List of nginx lua C packages to load. This should be a list of package
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names of loadable lua C modules, as in this example:
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@lisp
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(lua-package-cpath (list lua-resty-signal))
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@end lisp
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@item @code{global-directives} (default: @code{'((events . ()))})
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@ -13,6 +13,7 @@
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;;; Copyright © 2020 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
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;;; Copyright © 2020 Arun Isaac <arunisaac@systemreboot.net>
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;;; Copyright © 2020 Oleg Pykhalov <go.wigust@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -525,6 +526,10 @@ (define-record-type* <nginx-configuration>
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(modules nginx-configuration-modules (default '()))
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(global-directives nginx-configuration-global-directives
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(default '((events . ()))))
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(lua-package-path nginx-lua-package-path ;list of <package>
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(default #f))
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(lua-package-cpath nginx-lua-package-cpath ;list of <package>
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(default #f))
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(extra-content nginx-configuration-extra-content
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(default ""))
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(file nginx-configuration-file ;#f | string | file-like
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@ -630,6 +635,8 @@ (define (default-nginx-config config)
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server-names-hash-bucket-max-size
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modules
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global-directives
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lua-package-path
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lua-package-cpath
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extra-content)
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(apply mixed-text-file "nginx.conf"
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(flatten
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@ -646,11 +653,19 @@ (define (default-nginx-config config)
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" scgi_temp_path " run-directory "/scgi_temp;\n"
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" access_log " log-directory "/access.log;\n"
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" include " nginx "/share/nginx/conf/mime.types;\n"
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(if server-names-hash-bucket-size
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(string-append
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" server_names_hash_bucket_size "
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(number->string server-names-hash-bucket-size)
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";\n")
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(if lua-package-path
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#~(format #f " lua_package_path ~s;~%"
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(string-join (map (lambda (path)
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(string-append path "/lib/?.lua"))
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'#$lua-package-path)
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";"))
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"")
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(if lua-package-cpath
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#~(format #f " lua_package_cpath ~s;~%"
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(string-join (map (lambda (cpath)
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(string-append cpath "/lib/lua/?.lua"))
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'#$lua-package-cpath)
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";"))
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"")
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(if server-names-hash-bucket-max-size
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(string-append
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