apisix/t/node/upstream-node-dns.t
罗泽轩 27c37b191f
fix: avoid copying unwanted data when the domain's IP changed (#4952)
It happened when we are handling upstream with domain inside a route.

Fix #4938
Fix #4941

Signed-off-by: spacewander <spacewanderlzx@gmail.com>
2021-09-02 09:38:30 +08:00

577 lines
14 KiB
Perl
Vendored

#
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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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use t::APISIX 'no_plan';
repeat_each(1);
log_level('info');
no_root_location();
no_shuffle();
run_tests();
__DATA__
=== TEST 1: route with one upstream node
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"upstream": {
"nodes": {
"test.com:1980": 1
},
"type": "roundrobin"
},
"uri": "/hello"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 2: hit route, resolve upstream node to "127.0.0.2" always
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
utils.dns_parse = function (domain) -- mock: DNS parser
if domain == "test.com" then
return {address = "127.0.0.2"}
end
error("unknown domain: " .. domain)
end
--- request
GET /hello
--- response_body
hello world
--- no_error_log
[error]
=== TEST 3: hit route, resolve upstream node to different values
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 0
utils.dns_parse = function (domain) -- mock: DNS parser
count = count + 1
if domain == "test.com" then
return {address = "127.0.0." .. count}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
core.log.info("call /hello")
local code, body = t('/hello', ngx.HTTP_GET)
}
}
--- request
GET /t
--- grep_error_log eval
qr/dns resolver domain: test.com to 127.0.0.\d|call \/hello|proxy request to 127.0.0.\d:1980/
--- grep_error_log_out
call /hello
dns resolver domain: test.com to 127.0.0.1
proxy request to 127.0.0.1:1980
=== TEST 4: set route with two upstream nodes
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"upstream": {
"nodes": {
"test.com:1980": 1,
"test2.com:1980": 1
},
"type": "roundrobin"
},
"uri": "/hello"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 5: hit route, resolve the upstream node to "127.0.0.2"
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
utils.dns_parse = function (domain) -- mock: DNS parser
if domain == "test.com" or domain == "test2.com" then
return {address = "127.0.0.2"}
end
error("unknown domain: " .. domain)
end
--- request
GET /hello
--- response_body
hello world
--- no_error_log
[error]
=== TEST 6: hit route, resolve upstream node to different values
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 0
utils.dns_parse = function (domain) -- mock: DNS parser
count = count + 1
if domain == "test.com" or domain == "test2.com" then
return {address = "127.0.0." .. count}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
core.log.info("call /hello")
local code, body = t('/hello', ngx.HTTP_GET)
core.log.warn("code: ", code)
}
}
--- request
GET /t
--- grep_error_log eval
qr/dns resolver domain: \w+.com to 127.0.0.\d|call \/hello|proxy request to 127.0.0.\d:1980/
--- grep_error_log_out eval
qr/call \/hello(
dns resolver domain: test.com to 127.0.0.1
dns resolver domain: test2.com to 127.0.0.2|
dns resolver domain: test2.com to 127.0.0.1
dns resolver domain: test.com to 127.0.0.2)
proxy request to 127.0.0.[12]:1980
/
=== TEST 7: upstream with one upstream node
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/upstreams/1',
ngx.HTTP_PUT,
[[{
"nodes": {
"test.com:1980": 1
},
"type": "roundrobin",
"desc": "new upstream"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 8: set route with upstream_id 1
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/hello",
"upstream_id": "1"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 9: hit route, resolve upstream node to different values
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 0
utils.dns_parse = function (domain) -- mock: DNS parser
count = count + 1
if domain == "test.com" then
return {address = "127.0.0." .. count}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
core.log.info("call /hello")
local code, body = t('/hello', ngx.HTTP_GET)
}
}
--- request
GET /t
--- grep_error_log eval
qr/dns resolver domain: test.com to 127.0.0.\d|call \/hello|proxy request to 127.0.0.\d:1980/
--- grep_error_log_out
call /hello
dns resolver domain: test.com to 127.0.0.1
proxy request to 127.0.0.1:1980
=== TEST 10: two upstream nodes in upstream object
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/upstreams/1',
ngx.HTTP_PUT,
[[{
"nodes": {
"test.com:1980": 1,
"test2.com:1980": 1
},
"type": "roundrobin",
"desc": "new upstream"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 11: hit route, resolve upstream node to different values
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 0
utils.dns_parse = function (domain) -- mock: DNS parser
count = count + 1
if domain == "test.com" or domain == "test2.com" then
return {address = "127.0.0." .. count}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
core.log.info("call /hello")
local code, body = t('/hello', ngx.HTTP_GET)
}
}
--- request
GET /t
--- grep_error_log eval
qr/dns resolver domain: \w+.com to 127.0.0.\d|call \/hello|proxy request to 127.0.0.\d:1980/
--- grep_error_log_out eval
qr/call \/hello(
dns resolver domain: test.com to 127.0.0.1
dns resolver domain: test2.com to 127.0.0.2|
dns resolver domain: test2.com to 127.0.0.1
dns resolver domain: test.com to 127.0.0.2)
proxy request to 127.0.0.[12]:1980
/
=== TEST 12: dns cached expired, resolve the domain always with same value
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 1
utils.dns_parse = function (domain) -- mock: DNS parser
if domain == "test.com" or domain == "test2.com" then
return {address = "127.0.0.1"}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
core.log.info("call /hello")
local code, body = t('/hello', ngx.HTTP_GET)
}
}
--- request
GET /t
--- grep_error_log eval
qr/dns resolver domain: \w+.com to 127.0.0.\d|call \/hello|proxy request to 127.0.0.\d:1980/
--- grep_error_log_out eval
qr/call \/hello(
dns resolver domain: test.com to 127.0.0.1
dns resolver domain: test2.com to 127.0.0.1|
dns resolver domain: test2.com to 127.0.0.1
dns resolver domain: test.com to 127.0.0.1)
proxy request to 127.0.0.1:1980
/
=== TEST 13: two upstream nodes in upstream object (one host + one IP)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/upstreams/1',
ngx.HTTP_PUT,
[[{
"nodes": {
"test.com:1980": 1,
"127.0.0.5:1981": 1
},
"type": "roundrobin",
"desc": "new upstream"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 14: dns cached expired, resolve the domain with different values
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 0
utils.dns_parse = function (domain) -- mock: DNS parser
count = count + 1
if domain == "test.com" or domain == "test2.com" then
return {address = "127.0.0." .. count}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
core.log.info("call /hello")
local code, body = t('/hello', ngx.HTTP_GET)
}
}
--- request
GET /t
--- grep_error_log eval
qr/dns resolver domain: \w+.com to 127.0.0.\d|call \/hello|proxy request to 127.0.0.\d:198\d/
--- grep_error_log_out eval
qr/call \/hello
dns resolver domain: test.com to 127.0.0.1
proxy request to 127.0.0.(1:1980|5:1981)
/
=== TEST 15: route with upstream node, the domain's IP is changed
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"upstream": {
"nodes": {
"test.com:1980": 1
},
"type": "roundrobin"
},
"uri": "/hello"
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 16: hit
--- init_by_lua_block
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
local utils = require("apisix.core.utils")
local count = 0
utils.dns_parse = function (domain) -- mock: DNS parser
count = count + 1
if domain == "test.com" then
return {address = "127.0.0." .. count}
end
error("unknown domain: " .. domain)
end
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
t('/hello', ngx.HTTP_GET)
-- avoid adding more "dns_value" into the route
t('/hello', ngx.HTTP_GET)
}
}
--- request
GET /t
--- grep_error_log eval
qr/parse route which contain domain: .+("dns_value":.+){3}/
--- grep_error_log_out