nginx-ingress config map snippets being ignored by the nginx.conf

I spent a day untill got that for ingress-nginx (from Kubernetes) there are *-snippet, but for nginx-ingress (from NGINX) that *-snippets with s.

Look here:

• ingress-nginx: https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#main-snippet
• nginx-ingress: https://docs.nginx.com/nginx-ingress-controller/configuration/global-configuration/configmap-resource/#snippets-and-custom-templates

If you'd like to modify your Kubernetes Ingress the annotation options are these:

• nginx.ingress.kubernetes.io/configuration-snippet for an nginx location block snippet
• nginx.ingress.kubernetes.io/server-snippet for a snippet in the nginx config service block

Looks like you are using nginx.org/location-snippets: for that case.

There's also a YAML invalid syntax on nginx config example and also you should use plurals as in server-snippets according to this example. There's a typo in the docs as of this writing. Opened this ticket to follow up.

It should be something like this:

  server-snippets: |
    location /messagehub {
      proxy_set_header Upgrade $http_upgrade;
      proxy_http_version 1.1;
      proxy_set_header X-Forwarded-Host $http_host;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Forwarded-For $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header Connection "upgrade";
      proxy_cache_bypass $http_upgrade;
      }

instead of this:

  server-snippet: |
    location /messagehub {
      proxy_set_header Upgrade $http_upgrade;
      proxy_http_version 1.1;
      proxy_set_header X-Forwarded-Host $http_host;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Forwarded-For $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header Connection "upgrade";
      proxy_cache_bypass $http_upgrade;
    }

Notice the indentation of the last curly brace.