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03-plugins_iterator_invalidation_spec.lua
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03-plugins_iterator_invalidation_spec.lua
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local cjson = require "cjson"
local helpers = require "spec.helpers"
local uuid = require("kong.tools.uuid").uuid
local POLL_INTERVAL = 0.3
local function assert_admin_2_wait(request, res_status, res_not_message)
local ret
helpers.wait_until(function()
local admin_client_2 = helpers.http_client("127.0.0.1", 9001)
finally(function()
admin_client_2:close()
end)
local res = admin_client_2:send(request)
if not res then
return false
end
if res.status ~= res_status then
return false
end
local body = res:read_body()
if not body then
return false
end
local json = cjson.decode(body)
if res_not_message then
if not json.message:match("^[%w-]+$") then
return false
end
if json.message == res_not_message then
return false
end
end
ret = json
return true
end, 10)
return ret
end
for _, strategy in helpers.each_strategy() do
describe("plugins iterator with db [#" .. strategy .. "]", function()
local admin_client_1
local admin_client_2
local proxy_client_1
local proxy_client_2
local service_fixture
lazy_setup(function()
local bp = helpers.get_db_utils(strategy, {
"routes",
"services",
"plugins",
"certificates",
})
-- insert single fixture Service
service_fixture = bp.services:insert()
assert(helpers.start_kong {
log_level = "debug",
prefix = "servroot1",
database = strategy,
proxy_listen = "0.0.0.0:8000, 0.0.0.0:8443 ssl",
admin_listen = "0.0.0.0:8001",
db_update_frequency = POLL_INTERVAL,
nginx_conf = "spec/fixtures/custom_nginx.template",
})
assert(helpers.start_kong {
log_level = "debug",
prefix = "servroot2",
database = strategy,
proxy_listen = "0.0.0.0:9000, 0.0.0.0:9443 ssl",
admin_listen = "0.0.0.0:9001",
db_update_frequency = POLL_INTERVAL,
})
local admin_client = helpers.http_client("127.0.0.1", 8001)
local admin_res = assert(admin_client:send {
method = "POST",
path = "/routes",
body = {
protocols = { "http" },
hosts = { "dummy.test" },
service = {
id = service_fixture.id,
}
},
headers = {
["Content-Type"] = "application/json",
},
})
assert.res_status(201, admin_res)
admin_client:close()
end)
lazy_teardown(function()
helpers.stop_kong("servroot1")
helpers.stop_kong("servroot2")
end)
before_each(function()
admin_client_1 = helpers.http_client("127.0.0.1", 8001)
admin_client_2 = helpers.http_client("127.0.0.1", 9001)
proxy_client_1 = helpers.http_client("127.0.0.1", 8000)
proxy_client_2 = helpers.http_client("127.0.0.1", 9000)
end)
after_each(function()
admin_client_1:close()
admin_client_2:close()
proxy_client_1:close()
proxy_client_2:close()
end)
describe("plugins_iterator:version", function()
local service_plugin_id
it("is created at startup", function()
local admin_res_1 = assert(admin_client_1:send {
method = "GET",
path = "/cache/plugins_iterator:version",
})
local body_1 = assert.res_status(200, admin_res_1)
local msg_1 = cjson.decode(body_1)
local admin_res_2 = assert(admin_client_2:send {
method = "GET",
path = "/cache/plugins_iterator:version",
})
local body_2 = assert.res_status(200, admin_res_2)
local msg_2 = cjson.decode(body_2)
assert.equal("init", msg_1.message)
assert.equal("init", msg_2.message)
end)
it("changes on plugin creation", function()
local admin_res_before = admin_client_2:get("/cache/plugins_iterator:version")
local body_before = assert.res_status(200, admin_res_before)
local msg_before = cjson.decode(body_before)
assert.matches("^[%w-]+$", msg_before.message)
-- create Plugin
local admin_res_plugin = assert(admin_client_1:send {
method = "POST",
path = "/plugins",
body = {
name = "dummy",
service = { id = service_fixture.id },
},
headers = {
["Content-Type"] = "application/json",
},
})
local body = assert.res_status(201, admin_res_plugin)
local plugin = cjson.decode(body)
service_plugin_id = plugin.id
assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200, msg_before.message)
end)
it("changes on proxied request or timer", function()
-- issue a request
local res_1 = assert(proxy_client_1:send {
method = "GET",
path = "/status/200",
headers = {
host = "dummy.test",
}
})
assert.res_status(200, res_1)
local admin_res_1 = assert(admin_client_1:send {
method = "GET",
path = "/cache/plugins_iterator:version",
})
local body_1 = assert.res_status(200, admin_res_1)
local msg_1 = cjson.decode(body_1)
assert.matches("^[%w-]+$", msg_1.message)
-- each node has their own version
local msg_2 = assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200)
-- check that node 2 was already up to date via its timer
local res_2 = assert(proxy_client_2:send {
method = "GET",
path = "/status/200",
headers = {
host = "dummy.test",
}
})
assert.res_status(200, res_2)
local admin_res_3 = assert(admin_client_2:send {
method = "GET",
path = "/cache/plugins_iterator:version",
})
local body_3 = assert.res_status(200, admin_res_3)
local msg_3 = cjson.decode(body_3)
assert.matches("^[%w-]+$", msg_3.message)
-- no version change
assert.equals(msg_2.message, msg_3.message)
end)
it("changes on plugin PATCH", function()
local admin_res_before = admin_client_2:get("/cache/plugins_iterator:version")
local body_before = assert.res_status(200, admin_res_before)
local msg_before = cjson.decode(body_before)
assert.matches("^[%w-]+$", msg_before.message)
local admin_res_plugin = assert(admin_client_1:send {
method = "PATCH",
path = "/plugins/" .. service_plugin_id,
body = {
config = {
resp_header_value = "2"
}
},
headers = {
["Content-Type"] = "application/json",
},
})
assert.res_status(200, admin_res_plugin)
-- the version has changed
assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200, msg_before.message)
end)
it("changes on plugin DELETE", function()
local msg_before = assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200)
local admin_res_plugin = assert(admin_client_1:send {
method = "DELETE",
path = "/plugins/" .. service_plugin_id,
})
assert.res_status(204, admin_res_plugin)
-- the version has changed
assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200, msg_before.message)
end)
it("changes on plugin PUT", function()
local msg_before = assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200)
-- A regression test for https://github.com/Kong/kong/issues/4191
local admin_res_plugin = assert(admin_client_1:send {
method = "PUT",
path = "/plugins/" .. uuid(),
body = {
name = "dummy",
service = { id = service_fixture.id },
},
headers = {
["Content-Type"] = "application/json",
},
})
assert.res_status(200, admin_res_plugin)
-- the version has changed
assert_admin_2_wait({
method = "GET",
path = "/cache/plugins_iterator:version",
}, 200, msg_before.message)
end)
end)
end)
end