change: move config_center under deployment and named as config_provider

apisix/cli/etcd.lua

@@ -157,7 +157,7 @@ function _M.init(env, args)
         util.die("failed to read `apisix` field from yaml file when init etcd")
     end
 
-    if yaml_conf.apisix.config_center ~= "etcd" then
+    if yaml_conf.deployment.config_provider ~= "etcd" then
         return true
     end
 

apisix/cli/file.lua

@@ -233,21 +233,8 @@ function _M.read_yaml_conf(apisix_home)
         end
     end
 
-    if default_conf.apisix.config_center == "yaml" then
-        local apisix_conf_path = profile:yaml_path("apisix")
-        local apisix_conf_yaml, _ = util.read_file(apisix_conf_path)
-        if apisix_conf_yaml then
-            local apisix_conf = yaml.parse(apisix_conf_yaml)
-            if apisix_conf then
-                local ok, err = resolve_conf_var(apisix_conf)
-                if not ok then
-                    return nil, err
-                end
-            end
-        end
-    end
-
     if default_conf.deployment then
+        default_conf.deployment.config_provider = "etcd"
         if default_conf.deployment.role == "traditional" then
             default_conf.etcd = default_conf.deployment.etcd
 
@@ -257,7 +244,9 @@ function _M.read_yaml_conf(apisix_home)
 
         elseif default_conf.deployment.role == "data_plane" then
             if default_conf.deployment.role_data_plane.config_provider == "yaml" then
-                default_conf.apisix.config_center = "yaml"
+                default_conf.deployment.config_provider = "yaml"
+            elseif default_conf.deployment.role_data_plane.config_provider == "xds" then
+                default_conf.deployment.config_provider = "xds"
             else
                 default_conf.etcd = default_conf.deployment.role_data_plane.control_plane
             end
@@ -276,6 +265,20 @@ function _M.read_yaml_conf(apisix_home)
         end
     end
 
+    if default_conf.deployment.config_provider == "yaml" then
+        local apisix_conf_path = profile:yaml_path("apisix")
+        local apisix_conf_yaml, _ = util.read_file(apisix_conf_path)
+        if apisix_conf_yaml then
+            local apisix_conf = yaml.parse(apisix_conf_yaml)
+            if apisix_conf then
+                local ok, err = resolve_conf_var(apisix_conf)
+                if not ok then
+                    return nil, err
+                end
+            end
+        end
+    end
+
     return default_conf
 end
 

apisix/cli/ops.lua

@@ -244,9 +244,9 @@ Please modify "admin_key" in conf/config.yaml .
     end
 
     if yaml_conf.apisix.enable_admin and
-        yaml_conf.apisix.config_center == "yaml"
+        yaml_conf.deployment.config_provider == "yaml"
     then
-        util.die("ERROR: Admin API can only be used with etcd config_center.\n")
+        util.die("ERROR: Admin API can only be used with etcd config_provider.\n")
     end
 
     local or_ver = get_openresty_version()

apisix/cli/schema.lua

@@ -71,9 +71,6 @@ local config_schema = {
     properties = {
         apisix = {
             properties = {
-                config_center = {
-                    enum = {"etcd", "yaml", "xds"},
-                },
                 lua_module_hook = {
                     pattern = "^[a-zA-Z._-]+$",
                 },
@@ -380,7 +377,7 @@ local deployment_schema = {
             role_data_plane = {
                 properties = {
                     config_provider = {
-                        enum = {"control_plane", "yaml"}
+                        enum = {"control_plane", "yaml", "xds"}
                     },
                 },
                 required = {"config_provider"}

apisix/core.lua

@@ -21,11 +21,11 @@ if not local_conf then
     error("failed to parse yaml config: " .. err)
 end
 
-local config_center = local_conf.apisix and local_conf.apisix.config_center
+local config_provider = local_conf.deployment and local_conf.deployment.config_provider
                       or "etcd"
-log.info("use config_center: ", config_center)
-local config = require("apisix.core.config_" .. config_center)
-config.type = config_center
+log.info("use config_provider: ", config_provider)
+local config = require("apisix.core.config_" .. config_provider)
+config.type = config_provider
 
 
 return {

conf/config-default.yaml

@@ -33,8 +33,6 @@ apisix:
   enable_reuseport: true            # Enable nginx SO_REUSEPORT switch if set to true.
   show_upstream_status_in_response_header: false # when true all upstream status write to `X-APISIX-Upstream-Status` otherwise only 5xx code
   enable_ipv6: true
-  config_center: etcd               # etcd: use etcd to store the config value
-                                    # yaml: fetch the config value from local yaml file `/your_path/conf/apisix.yaml`
 
   #proxy_protocol:                  # Proxy Protocol configuration
   #listen_http_port: 9181           # The port with proxy protocol for http, it differs from node_listen and admin_listen.

docs/en/latest/stand-alone.md

@@ -34,13 +34,15 @@ The routing rules in the `conf/apisix.yaml` file are loaded into memory immediat
 
 Since the current Admin API is based on the etcd configuration center solution, enable Admin API is not allowed when the Stand-alone mode is enabled.
 
-To enable Stand-alone mode, we can set `apisix.config_center` to `yaml` and disable Admin API in file `conf/config.yaml`.
+The Stand-alone mode can only be enabled when set the role of APISIX as data plane. We can set `deployment.role` to `data_plane` and `deployment.role_data_plane.config_provider` to `yaml`.
 
 Refer to the example below:
 
 ```yaml
-apisix:
-  config_center: yaml
+deployment:
+  role: data_plane
+  role_data_plane:
+    config_provider: yaml
 ```
 
 ### How to configure rules

docs/zh/latest/stand-alone.md

@@ -35,13 +35,15 @@ APISIX 节点服务启动后会立刻加载 `conf/apisix.yaml` 文件中的路
 由于目前 Admin API 都是基于 etcd 配置中心解决方案，当开启 Stand-alone 模式后，
 Admin API 将不再被允许使用。
 
-通过设置 `conf/config.yaml` 中的 `apisix.config_center` 选项为 `yaml` ，并禁用 Admin API 即可启用 Stand-alone 模式。
+只有当 APISIX 的角色设置为 data plane 时，才能开启 Stand-alone 模式。通过设置 `deployment.role` 为 `data_plane`，设置 `deployment.role_data_plane.config_provider` 为 `yaml` 即可启用 Stand-alone 模式。
 
 参考下面示例：
 
 ```yaml
-apisix:
-  config_center: yaml
+deployment:
+  role: data_plane
+  role_data_plane:
+    config_provider: yaml
 ```
 
 ### 如何配置规则

t/APISIX.pm

@@ -232,8 +232,11 @@ add_block_preprocessor(sub {
         $user_yaml_config = <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
     enable_admin: false
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
     }
 

t/bin/gen_snippet.lua

@@ -33,6 +33,13 @@ local yaml_conf, err = file.read_yaml_conf("t/servroot")
 if not yaml_conf then
     error(err)
 end
+
+if yaml_conf.deployment.role == "data_plane" and
+    yaml_conf.deployment.config_provider == "yaml"
+    or yaml_conf.deployment.config_provider == "xds" then
+    return
+end
+
 local ok, err = schema.validate(yaml_conf)
 if not ok then
     error(err)

t/cli/test_admin.sh

@@ -204,20 +204,24 @@ fi
 
 echo "pass: uninitialized variable not found during writing access log (admin_listen set)"
 
-# Admin API can only be used with etcd config_center
+# Admin API can only be used with etcd config_provider
+## if role is data_plane, and config_provider is yaml, then enable_admin is set to false
 echo '
 apisix:
     enable_admin: true
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 ' > conf/config.yaml
 
 out=$(make init 2>&1 || true)
-if ! echo "$out" | grep "Admin API can only be used with etcd config_center"; then
-    echo "failed: Admin API can only be used with etcd config_center"
+if echo "$out" | grep "Admin API can only be used with etcd config_provider"; then
+    echo "failed: Admin API can only be used with etcd config_provider"
     exit 1
 fi
 
-echo "passed: Admin API can only be used with etcd config_center"
+echo "passed: Admin API can only be used with etcd config_provider"
 
 # disable Admin API and init plugins syncer
 echo '

t/cli/test_serverless.sh

@@ -31,7 +31,10 @@ rm logs/error.log || echo ''
 echo '
 apisix:
   enable_admin: false
-  config_center: yaml
+deployment:
+  role: data_plane
+  role_data_plane:
+    config_provider: yaml
 ' > conf/config.yaml
 
 make init

t/cli/test_standalone.sh

@@ -30,7 +30,10 @@ trap standalone EXIT
 echo '
 apisix:
   enable_admin: false
-  config_center: yaml
+deployment:
+  role: data_plane
+  role_data_plane:
+    config_provider: yaml
 ' > conf/config.yaml
 
 echo '

t/config-center-yaml/consumer.t

@@ -27,7 +27,10 @@ add_block_preprocessor(sub {
     my $yaml_config = $block->yaml_config // <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
     $block->set_value("yaml_config", $yaml_config);

t/config-center-yaml/global-rule.t

@@ -27,7 +27,10 @@ add_block_preprocessor(sub {
     my $yaml_config = $block->yaml_config // <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
     $block->set_value("yaml_config", $yaml_config);

t/config-center-yaml/plugin-configs.t

@@ -27,7 +27,10 @@ add_block_preprocessor(sub {
     my $yaml_config = $block->yaml_config // <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
     $block->set_value("yaml_config", $yaml_config);

t/config-center-yaml/plugin-metadata.t

@@ -27,7 +27,10 @@ add_block_preprocessor(sub {
     my $yaml_config = $block->yaml_config // <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
     $block->set_value("yaml_config", $yaml_config);

t/config-center-yaml/plugin.t

@@ -27,8 +27,11 @@ add_block_preprocessor(sub {
     my $yaml_config = $block->yaml_config // <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
     enable_admin: false
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
     $block->set_value("yaml_config", $yaml_config);
@@ -84,7 +87,7 @@ GET /t
 --- response_body
 hello world
 --- error_log
-use config_center: yaml
+use config_provider: yaml
 load(): loaded plugin and sort by priority: 3000 name: ip-restriction
 load(): loaded plugin and sort by priority: 2510 name: jwt-auth
 load_stream(): loaded stream plugin and sort by priority: 1000 name: mqtt-proxy
@@ -102,8 +105,11 @@ load(): new plugins
 --- yaml_config
 apisix:
     node_listen: 1984
-    config_center: yaml
     enable_admin: false
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 plugins:
     - ip-restriction
     - jwt-auth
@@ -169,8 +175,11 @@ GET /apisix/prometheus/metrics
 --- yaml_config
 apisix:
     node_listen: 1984
-    config_center: yaml
     enable_admin: false
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 plugins:
     - ip-restriction
     - jwt-auth

t/config-center-yaml/route-service.t

@@ -24,7 +24,10 @@ no_shuffle();
 our $yaml_config = <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
 run_tests();

t/config-center-yaml/route-upstream.t

@@ -24,7 +24,10 @@ no_shuffle();
 our $yaml_config = <<_EOC_;
 apisix:
     node_listen: 1984
-    config_center: yaml
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: yaml
 _EOC_
 
 run_tests();