feat(config): codo gateway 支持注入环境变量

.gitignore

@@ -8,7 +8,7 @@ nginx.pid
 t/servroot
 conf/app-dev.json
 #deps
-
+conf/app.json
 .travis/
 !.travis/ASF-Release.cfg
 bin/lj-releng

docker-compose.yml

@@ -3,6 +3,9 @@ services:
   gateway:
     restart: unless-stopped
     build: .
+    environment:
+      - "CODO_GATEWAY.appName=cctest"
+      - "CODO_GATEWAY.admin.account.admin.info.roles.1=cctest"
     ports:
       - "8888:8888"
       - "11000:11000"

gateway/app/config.lua

@@ -21,13 +21,96 @@ local error = error
 
 local _M = {}
 
-local app_config = {}
+local app_config = {
+    appName = "codo-gateway",
+    env = "test",
+    etcd = {
+        http_host = "http://127.0.0.1:2379",
+        data_prefix = "/my/gw/",
+    },
+    jwt_auth = {
+        key = "auth_key",
+        token = "xxxxxx",
+    },
+    codo_rbac = {
+        key = "auth",
+        token_secret = "xxxxxx",
+    },
+    sso2internal = {
+        sso_token_secret = "xxxxxx",
+        sso_jwt_key = "sso_token",
+        internal_token_secret = "xxxxxx",
+        internal_jwt_key = "auth_key",
+    },
+    mfa = {
+        mfa_secret = "xxxxxx",
+        mfa_key = "mfa_key"
+    },
+    plugins_config = {
+        ["redis-logger"] = {
+            host = "127.0.0.1",
+            port = 6379,
+            auth_pwd = "1234567",
+            db = 1,
+            alive_time = 604800,
+            channel = "gw",
+            full_log = "no"
+        }
+    },
+    admin = {
+        jwt_secret = "xxxx",
+        account = {
+            admin = {
+                password = "tainiubile",
+                info = {
+                    roles = { "admin" },
+                    introduction = "I am a super administrator",
+                    avatar = "https://xxx.com/1.gif",
+                    name = "管理员"
+                }
+            }
+        }
+    },
+    tokens = {
+        ["xxx"] = {
+            desc = "系统默认 api token"
+        }
+    }
+}
+
+-- 用于递归地检查配置表并使用环境变量更新
+local function update_config_with_env(config, parent_key)
+    for k, v in pairs(config) do
+        local env_key = parent_key and (parent_key .. "." .. k) or k
+        if type(v) == "table" then
+            -- 递归处理嵌套表
+            config[k] = update_config_with_env(v, env_key)
+        else
+            -- 尝试从环境变量中获取新的配置值
+            local env_value = os.getenv(env_key)
+            print("env_key======", env_key)
+            if env_value then
+                config[k] = env_value
+            end
+        end
+    end
+    return config
+end
 
 function _M.init(config_file)
     if not str_utils.start_with(config_file, "/") then
         config_file = ngx_config.prefix() .. config_file
     end
-    app_config = json.decode_json_file(config_file)
+    local json_conf = json.decode_json_file(config_file)
+    if not json_conf then
+        error("load config file failed")
+        return
+    end
+    app_config = json_conf
+    -- 使用环境变量更新配置
+    app_config = update_config_with_env(app_config, "CODO_GATEWAY")
+
+    print("load config success", json.delay_encode(app_config, false))
 end
 
 local function get(key)
@@ -45,7 +128,6 @@ function _M.get_etcd_config()
     return get("etcd")
 end
 
-
 function _M.get_jwt_auth()
     return get("jwt_auth")
 end
@@ -62,7 +144,6 @@ function _M.get_codo_rbac()
     return get("codo_rbac")
 end
 
-
 function _M.get_plugins_config(plugin_name)
     local _plugins_config = get("plugins_config")
     if _plugins_config then