3.8 CP config is not refused by 3.6.1 DP

kong/clustering/compat/checkers.lua

@@ -47,13 +47,13 @@ local compatible_checkers = {
           local config = plugin.config
           if config.storage_config.redis.username ~= nil then
             log_warn_message('configures ' .. plugin.name .. ' plugin with redis username',
-              'not work in this release.',
+              'not work in this release',
               dp_version, log_suffix)
           end
 
           if config.storage_config.redis.password ~= nil then
             log_warn_message('configures ' .. plugin.name .. ' plugin with redis password',
-              'not work in this release. Please use redis.auth config instead.',
+              'not work in this release. Please use redis.auth config instead',
               dp_version, log_suffix)
           end
         end

spec/02-integration/09-hybrid_mode/09-config-compat_spec.lua

@@ -337,6 +337,62 @@ describe("CP/DP config compat transformations #" .. strategy, function()
 
     describe("compatibility tests for redis standarization", function()
       describe("acme plugin", function()
+        it("translates standardized redis config to older acme structure", function()
+          -- [[ 3.8.x ]] --
+          local acme = admin.plugins:insert {
+            name = "acme",
+            enabled = true,
+            config = {
+              account_email = "[email protected]",
+              storage = "redis",
+              storage_config = {
+                -- [[ new structure redis
+                redis = {
+                  host = "localhost",
+                  port = 57198,
+                  username = "test",
+                  password = "secret",
+                  database = 2,
+                  timeout = 1100,
+                  ssl = true,
+                  ssl_verify = true,
+                  server_name = "example.test",
+                  extra_options = {
+                    namespace = "test_namespace",
+                    scan_count = 13
+                  }
+                }
+                -- ]]
+              }
+            }
+          }
+
+          local expected_acme_prior_38 = cycle_aware_deep_copy(acme)
+          expected_acme_prior_38.config.storage_config.redis = {
+            host = "localhost",
+            port = 57198,
+            username = "test",
+            auth = "secret",
+            password = "secret",
+            database = 2,
+            ssl = true,
+            ssl_verify = true,
+            ssl_server_name = "example.test",
+            namespace = "test_namespace",
+            scan_count = 13,
+            timeout = 1100,
+            server_name = "example.test",
+            extra_options = {
+              namespace = "test_namespace",
+              scan_count = 13
+            }
+          }
+          do_assert(uuid(), "3.6.1", expected_acme_prior_38)
+
+          -- cleanup
+          admin.plugins:remove({ id = acme.id })
+        end)
+
         it("translates standardized redis config to older acme structure", function()
           -- [[ 3.6.x ]] --
           local acme = admin.plugins:insert {