feat: support setting default http lua_shared_dict (#822)

Author: dennispan

charts/apisix/README.md

@@ -92,7 +92,7 @@ The command removes all the Kubernetes components associated with the chart and
 | apisix.luaModuleHook.hookPoint | string | `""` | the hook module which will be used to inject third party code into APISIX use the lua require style like: "module.say_hello" |
 | apisix.luaModuleHook.luaPath | string | `""` | extend lua_package_path to load third party code |
 | apisix.nginx.configurationSnippet | object | `{"httpAdmin":"","httpEnd":"","httpSrv":"","httpStart":"","main":"","stream":""}` | Custom configuration snippet. |
-| apisix.nginx.customLuaSharedDicts | list | `[]` | Add custom [lua_shared_dict](https://github.com/openresty/lua-nginx-module#toc88) settings, click [here](https://github.com/apache/apisix-helm-chart/blob/master/charts/apisix/values.yaml#L27-L30) to learn the format of a shared dict |
+| apisix.nginx.customLuaSharedDicts | list | `[]` | Add custom [lua_shared_dict](https://github.com/openresty/lua-nginx-module?tab=readme-ov-file#lua_shared_dict) settings, click [here](https://github.com/apache/apisix-helm-chart/blob/master/charts/apisix/values.yaml#L27-L30) to learn the format of a shared dict |
 | apisix.nginx.enableCPUAffinity | bool | `true` |  |
 | apisix.nginx.envs | list | `[]` |  |
 | apisix.nginx.keepaliveTimeout | string | `"60s"` | Timeout during which a keep-alive client connection will stay open on the server side. |
@@ -102,6 +102,7 @@ The command removes all the Kubernetes components associated with the chart and
 | apisix.nginx.logs.enableAccessLog | bool | `true` | Enable access log or not, default true |
 | apisix.nginx.logs.errorLog | string | `"/dev/stderr"` | Error log path |
 | apisix.nginx.logs.errorLogLevel | string | `"warn"` | Error log level |
+| apisix.nginx.luaSharedDicts | list | `[]` | Override default [lua_shared_dict](https://github.com/apache/apisix/blob/master/conf/config.yaml.example#L250-L276) settings, click [here](https://github.com/apache/apisix-helm-chart/blob/master/charts/apisix/values.yaml#L27-L30) to learn the format of a shared dict |
 | apisix.nginx.workerConnections | string | `"10620"` |  |
 | apisix.nginx.workerProcesses | string | `"auto"` |  |
 | apisix.nginx.workerRlimitNofile | string | `"20480"` |  |

charts/apisix/templates/configmap.yaml

@@ -206,6 +206,12 @@ data:
           {{ $dict.name }}: {{ $dict.size }}
         {{- end }}
         {{- end }}
+        {{- if .Values.apisix.nginx.luaSharedDicts }}
+        lua_shared_dict:
+        {{- range $dict := .Values.apisix.nginx.luaSharedDicts }}
+          - {{ $dict.name }}: {{ $dict.size }}
+        {{- end }}
+        {{- end }}
       {{- if .Values.apisix.nginx.configurationSnippet.main }}
       main_configuration_snippet: {{- toYaml .Values.apisix.nginx.configurationSnippet.main | indent 6 }}
       {{- end }}

charts/apisix/values.yaml

@@ -440,14 +440,20 @@ apisix:
 
       stream: |
 
-    # -- Add custom [lua_shared_dict](https://github.com/openresty/lua-nginx-module#toc88) settings,
+    # -- Add custom [lua_shared_dict](https://github.com/openresty/lua-nginx-module?tab=readme-ov-file#lua_shared_dict) settings,
     # click [here](https://github.com/apache/apisix-helm-chart/blob/master/charts/apisix/values.yaml#L27-L30) to learn the format of a shared dict
     customLuaSharedDicts: []
       # - name: foo
       #   size: 10k
       # - name: bar
       #   size: 1m
 
+    # -- Override default [lua_shared_dict](https://github.com/apache/apisix/blob/master/conf/config.yaml.example#L250-L276) settings,
+    # click [here](https://github.com/apache/apisix-helm-chart/blob/master/charts/apisix/values.yaml#L27-L30) to learn the format of a shared dict
+    luaSharedDicts: []
+      # - name: prometheus-metrics
+      #   size: 20m
+
   discovery:
     # -- Enable or disable Apache APISIX integration service discovery
     enabled: false