update README
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51
README.md
51
README.md
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@ -19,8 +19,37 @@ It is an effective replacement to your NGINX installation, but you can have
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them coexisting (say, NGINX on port 80, OpenResty being reverse proxied by
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them coexisting (say, NGINX on port 80, OpenResty being reverse proxied by
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NGINX on port 8069, though I wouldn't recommend it in production environments).
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NGINX on port 8069, though I wouldn't recommend it in production environments).
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### how does it work
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aproxy has two "hooks" into openresty:
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- initialization of the lua vm
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- callback for every incoming request
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initialization will run validation of your configuration file and check
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if it is valid. if it is not you will see logs emitted about what failed
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when a request comes in, the scripts declared in the aproxy config file will
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be executed sequentially (TODO: ensure order on conf file is chain order).
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each script has two types of callbacks: init and request
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init callbacks are called when initializing the request, so that the script
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may do some conversion or transform the config data into a more performant
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in-memory structure.
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request callbacks are called on each request, as directed by the main script.
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scripts define which paths they want to attach to (via PCRE regex), and so
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they can do their own filtering.
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look at `scripts/webfinger_allowlist.lua` for an example of how this looks
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in a simple form.
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### actually installing aproxy
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### actually installing aproxy
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- get openresty installed
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- keep in mind that the specifics of configuring openresty for a double reverse proxy setup aren't included here.
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- instructions here are for aproxy's setup in an existing openresty installation
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```sh
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```sh
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mkdir /opt
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mkdir /opt
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git clone https://gitdab.com/luna/aproxy
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git clone https://gitdab.com/luna/aproxy
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@ -28,6 +57,9 @@ git clone https://gitdab.com/luna/aproxy
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cd aproxy
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cd aproxy
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mkdir /etc/aproxy
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mkdir /etc/aproxy
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cp ./conf.lua /etc/aproxy/conf.lua
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cp ./conf.lua /etc/aproxy/conf.lua
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# keep in mind the default configuration will lead to your users not being discovered at all,
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# it is provided as an example for you to modify.
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$EDITOR /etc/aproxy/conf.lua
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$EDITOR /etc/aproxy/conf.lua
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```
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```
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@ -51,21 +83,24 @@ http {
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You need to do the following:
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You need to do the following:
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- Configure OpenResty package path so that it can call aproxy.
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- Configure OpenResty package path so that it can call aproxy.
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- Insert aproxy as a callback on `location / {` block
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- insert aproxy hooks for initialization and for callbacks on every request
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It'll look something like this:
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It'll look something like this if you use a single `location /` block:
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```nginx
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```nginx
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http {
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# set this to 'on' after you have tested that it actually works.
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lua_package_path '/opt/?.lua;/opt/aproxy/?.lua;;';
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# once you do that, performance will be increased
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# while the friction to quickly debug aproxy will also be increased
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lua_code_cache off;
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lua_package_path '/opt/?.lua;/opt/aproxy/?.lua;;';
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init_by_lua_block {
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require("aproxy.main").init()
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}
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http {
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server {
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server {
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server_name example.com;
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server_name example.com;
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location / {
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location / {
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# set this to 'on' after you have tested that it actually works.
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# once you do that, performance will be increased
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# while the friction to quickly debug aproxy will also be increased
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lua_code_cache off;
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access_by_lua_block {
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access_by_lua_block {
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require("aproxy.main").access()
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require("aproxy.main").access()
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}
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}
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@ -1,10 +1,10 @@
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lua_code_cache off;
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init_by_lua_block {
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init_by_lua_block {
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require("aproxy.main").init()
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require("aproxy.main").init()
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}
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}
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server {
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server {
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listen 80;
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listen 80;
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lua_code_cache off;
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location / {
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location / {
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default_type text/html;
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default_type text/html;
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