static initializing a map?

martin.gee · 2015-09-25T23:18:04+00:00

On 25 September 2015 at 16:46, bjoe2k4 <ggr...@d9c.eu> wrote:> Thank you for the reply. I did dot remove the 1st message, but according to Aapo>...

static initializing a map?

martin.gee

I have an app that dynamically creates NGINX conf files. It then uses access_by_lua_file to process variables defined in the conf file.

e.g. conf file

location / {

set $_1 'value1'

set $_2 'value2'

set $_3 'value3'

set $_argc 3;

access_by_lua_file conf/mycode.lua;

}

In the lua code I need to create a lua (dict) table with these variables so I can use them for lookups. Currently I have a for loop (using _argc and builds a _# string to index ngx.var[''] ) that runs on each request to build this table. I'd like to avoid this rebuild each request.

I know global var in lua are bad. My understanding is set_by_lua runs each time to. I cant use init_by_lua since this is location specific.

Is there a way to statically define this map in standard nginx conf or lua?

lordnynex

Hello,

Please be aware that you've double posted to the list.

I'm not sure I fully understand your requirements. If the values are static, you can simply use set as you are today and access the var by using ngx.var (read more at https://github.com/openresty/lua-nginx-module#ngxvarvariable).

If you wish to preserve some sort of dynamic state you should use ngx.shared.dict (read more at https://github.com/openresty/lua-resty-core#restycoreshdict.)

On Fri, Sep 25, 2015 at 8:18 AM, Martin Gee <mart...@icsynergy.com> wrote:

I have an app that dynamically creates NGINX conf files. It then uses access_by_lua_file to process variables defined in the conf file.

e.g. conf file
location / {
set $_1 'value1'
set $_2 'value2'
set $_3 'value3'
set $_argc 3;

access_by_lua_file conf/mycode.lua;
}

In the lua code I need to create a lua (dict) table with these variables so I can use them for lookups. Currently I have a for loop (using _argc and builds a _# string to index ngx.var[''] ) that runs on each request to build this table. I'd like to avoid this rebuild each request.

I know global var in lua are bad. My understanding is set_by_lua runs each time to. I cant use init_by_lua since this is location specific.

Is there a way to statically define this map in standard nginx conf or lua?

.