Reputation: 746
Is there any way I can configure ngnix other than through the normal ngnix.conf file ?
Like xml configuration or memcache or any other ways..?
My objective is to add/remove upstreams to the configuration dynamically. Ngnix doesnt seem to have a direct solution for this so I was planning to play with the configuration file, but I am finding it very difficult and error prone to modify the file through script/programs.
Any suggestions ?
Upvotes: 0
Views: 69
Reputation: 3607
No. You can't. The only way to "dynamically" reconfigure nginx is to process the config files in external software and then reload the server. Neither you can "program" config like in Apache. The nginx config is mostly a static thing which is praised for its performance.
Source: I needed it too, done some research.
Edit: I have a "supervising" tool installed on my hosts that monitors load and clusters and such. I've ended up implementing the upstreams scaling through it. Whenever a new upstream is ready, it notifies my "supervisor" on all web servers. The "supervisors" then query for served "virtual hosts" on the new upstream and add all of them to their context on the nginx host. then it just nginx -t && nginx -s reload
everything. This is for nginx fastcgiing to php-fpms.
Edit2: I have many server
blocks for different server_names (sites), each has an upstream associated to it on another host(s). In the server block I have include /path/to/where/my/upstream/configs/are/us-<unique_site_id>.conf
line. the us-<unique_site_id>.conf
is generated when the server
block is created and populated with existing upstream(s) information. When there are changes in the upstreams pool or the site configuration, the file is rewritten to reflect it.
Upvotes: 1