[GitHub] [apisix] tzssangglass commented on a diff in pull request #8270: feat: add method that parse ip from /etc/hosts in high priority

[GitBox <gi...@apache.org>]

tzssangglass commented on code in PR #8270:
URL: https://github.com/apache/apisix/pull/8270#discussion_r1025939255


##########
apisix/core/resolver.lua:
##########
@@ -19,15 +19,31 @@
 --
 -- @module core.resolver
 
-local json = require("apisix.core.json")
-local log = require("apisix.core.log")
-local utils = require("apisix.core.utils")
+local json           = require("apisix.core.json")
+local log            = require("apisix.core.log")
+local utils          = require("apisix.core.utils")
+local dns_utils      = require("resty.dns.utils")
+
+
+local HOSTS_IP_MATCH_CACHE = {}
 
 
 local _M = {}
 
 
+local function init_hosts_ip()
+    local hosts, err = dns_utils.parseHosts()
+    if not hosts then
+        return hosts, err
+    end
+    HOSTS_IP_MATCH_CACHE = hosts

Review Comment:
   When will `HOSTS_IP_MATCH_CACHE` be cleaned? APISIX will not update it after it is read at startup. Unless APISIX is restarted.



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