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nginx_vts_test.go
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nginx_vts_test.go
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package nginx_vts
import (
"fmt"
"net"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/require"
)
const sampleStatusResponse = `
{
"hostName": "test.example.com",
"nginxVersion": "1.12.2",
"loadMsec": 1518180328331,
"nowMsec": 1518256058416,
"connections": {
"active": 111,
"reading": 222,
"writing": 333,
"waiting": 444,
"accepted": 555,
"handled": 666,
"requests": 777
},
"serverZones": {
"example.com": {
"requestCounter": 1415887,
"inBytes": 1296356607,
"outBytes": 4404939605,
"responses": {
"1xx": 100,
"2xx": 200,
"3xx": 300,
"4xx": 400,
"5xx": 500,
"miss": 14,
"bypass": 15,
"expired": 16,
"stale": 17,
"updating": 18,
"revalidated": 19,
"hit": 20,
"scarce": 21
},
"requestMsec": 13
},
"other.example.com": {
"requestCounter": 505,
"inBytes": 171388,
"outBytes": 1273382,
"responses": {
"1xx": 101,
"2xx": 201,
"3xx": 301,
"4xx": 401,
"5xx": 501,
"miss": 22,
"bypass": 23,
"expired": 24,
"stale": 25,
"updating": 26,
"revalidated": 27,
"hit": 28,
"scarce": 29
},
"requestMsec": 12
}
},
"filterZones": {
"country": {
"FI": {
"requestCounter": 60,
"inBytes": 2570,
"outBytes": 53597,
"responses": {
"1xx": 106,
"2xx": 206,
"3xx": 306,
"4xx": 406,
"5xx": 506,
"miss": 61,
"bypass": 62,
"expired": 63,
"stale": 64,
"updating": 65,
"revalidated": 66,
"hit": 67,
"scarce": 68
},
"requestMsec": 69
}
}
},
"upstreamZones": {
"backend_cluster": [
{
"server": "127.0.0.1:6000",
"requestCounter": 2103849,
"inBytes": 1774680141,
"outBytes": 11727669190,
"responses": {
"1xx": 103,
"2xx": 203,
"3xx": 303,
"4xx": 403,
"5xx": 503
},
"requestMsec": 30,
"responseMsec": 31,
"weight": 32,
"maxFails": 33,
"failTimeout": 34,
"backup": false,
"down": false
}
],
"::nogroups": [
{
"server": "127.0.0.1:4433",
"requestCounter": 8,
"inBytes": 5013,
"outBytes": 487585,
"responses": {
"1xx": 104,
"2xx": 204,
"3xx": 304,
"4xx": 404,
"5xx": 504
},
"requestMsec": 34,
"responseMsec": 35,
"weight": 36,
"maxFails": 37,
"failTimeout": 38,
"backup": true,
"down": false
},
{
"server": "127.0.0.1:8080",
"requestCounter": 7,
"inBytes": 2926,
"outBytes": 3846638,
"responses": {
"1xx": 105,
"2xx": 205,
"3xx": 305,
"4xx": 405,
"5xx": 505
},
"requestMsec": 39,
"responseMsec": 40,
"weight": 41,
"maxFails": 42,
"failTimeout": 43,
"backup": true,
"down": true
}
]
},
"cacheZones": {
"example": {
"maxSize": 9223372036854776000,
"usedSize": 68639232,
"inBytes": 697138673,
"outBytes": 11305044106,
"responses": {
"miss": 44,
"bypass": 45,
"expired": 46,
"stale": 47,
"updating": 48,
"revalidated": 49,
"hit": 50,
"scarce": 51
}
},
"static": {
"maxSize": 9223372036854776000,
"usedSize": 569856,
"inBytes": 551652333,
"outBytes": 1114889271,
"responses": {
"miss": 52,
"bypass": 53,
"expired": 54,
"stale": 55,
"updating": 56,
"revalidated": 57,
"hit": 58,
"scarce": 59
}
}
}
}
`
func TestNginxPlusGeneratesMetrics(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var rsp string
if r.URL.Path == "/status" {
rsp = sampleStatusResponse
w.Header()["Content-Type"] = []string{"application/json"}
} else {
panic("Cannot handle request")
}
fmt.Fprintln(w, rsp)
}))
defer ts.Close()
n := &NginxVTS{
Urls: []string{fmt.Sprintf("%s/status", ts.URL)},
}
var acc testutil.Accumulator
err := n.Gather(&acc)
require.NoError(t, err)
addr, err := url.Parse(ts.URL)
if err != nil {
panic(err)
}
host, port, err := net.SplitHostPort(addr.Host)
if err != nil {
host = addr.Host
if addr.Scheme == "http" {
port = "80"
} else if addr.Scheme == "https" {
port = "443"
} else {
port = ""
}
}
acc.AssertContainsTaggedFields(
t,
"nginx_vts_connections",
map[string]interface{}{
"accepted": uint64(555),
"active": uint64(111),
"handled": uint64(666),
"reading": uint64(222),
"requests": uint64(777),
"waiting": uint64(444),
"writing": uint64(333),
},
map[string]string{
"source": host,
"port": port,
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_server",
map[string]interface{}{
"requests": uint64(1415887),
"request_time": uint64(13),
"in_bytes": uint64(1296356607),
"out_bytes": uint64(4404939605),
"response_1xx_count": uint64(100),
"response_2xx_count": uint64(200),
"response_3xx_count": uint64(300),
"response_4xx_count": uint64(400),
"response_5xx_count": uint64(500),
"cache_miss": uint64(14),
"cache_bypass": uint64(15),
"cache_expired": uint64(16),
"cache_stale": uint64(17),
"cache_updating": uint64(18),
"cache_revalidated": uint64(19),
"cache_hit": uint64(20),
"cache_scarce": uint64(21),
},
map[string]string{
"source": host,
"port": port,
"zone": "example.com",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_filter",
map[string]interface{}{
"requests": uint64(60),
"request_time": uint64(69),
"in_bytes": uint64(2570),
"out_bytes": uint64(53597),
"response_1xx_count": uint64(106),
"response_2xx_count": uint64(206),
"response_3xx_count": uint64(306),
"response_4xx_count": uint64(406),
"response_5xx_count": uint64(506),
"cache_miss": uint64(61),
"cache_bypass": uint64(62),
"cache_expired": uint64(63),
"cache_stale": uint64(64),
"cache_updating": uint64(65),
"cache_revalidated": uint64(66),
"cache_hit": uint64(67),
"cache_scarce": uint64(68),
},
map[string]string{
"source": host,
"port": port,
"filter_key": "FI",
"filter_name": "country",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_server",
map[string]interface{}{
"requests": uint64(505),
"request_time": uint64(12),
"in_bytes": uint64(171388),
"out_bytes": uint64(1273382),
"response_1xx_count": uint64(101),
"response_2xx_count": uint64(201),
"response_3xx_count": uint64(301),
"response_4xx_count": uint64(401),
"response_5xx_count": uint64(501),
"cache_miss": uint64(22),
"cache_bypass": uint64(23),
"cache_expired": uint64(24),
"cache_stale": uint64(25),
"cache_updating": uint64(26),
"cache_revalidated": uint64(27),
"cache_hit": uint64(28),
"cache_scarce": uint64(29),
},
map[string]string{
"source": host,
"port": port,
"zone": "other.example.com",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_upstream",
map[string]interface{}{
"requests": uint64(2103849),
"request_time": uint64(30),
"response_time": uint64(31),
"in_bytes": uint64(1774680141),
"out_bytes": uint64(11727669190),
"response_1xx_count": uint64(103),
"response_2xx_count": uint64(203),
"response_3xx_count": uint64(303),
"response_4xx_count": uint64(403),
"response_5xx_count": uint64(503),
"weight": uint64(32),
"max_fails": uint64(33),
"fail_timeout": uint64(34),
"backup": bool(false),
"down": bool(false),
},
map[string]string{
"source": host,
"port": port,
"upstream": "backend_cluster",
"upstream_address": "127.0.0.1:6000",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_upstream",
map[string]interface{}{
"requests": uint64(8),
"request_time": uint64(34),
"response_time": uint64(35),
"in_bytes": uint64(5013),
"out_bytes": uint64(487585),
"response_1xx_count": uint64(104),
"response_2xx_count": uint64(204),
"response_3xx_count": uint64(304),
"response_4xx_count": uint64(404),
"response_5xx_count": uint64(504),
"weight": uint64(36),
"max_fails": uint64(37),
"fail_timeout": uint64(38),
"backup": bool(true),
"down": bool(false),
},
map[string]string{
"source": host,
"port": port,
"upstream": "::nogroups",
"upstream_address": "127.0.0.1:4433",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_upstream",
map[string]interface{}{
"requests": uint64(7),
"request_time": uint64(39),
"response_time": uint64(40),
"in_bytes": uint64(2926),
"out_bytes": uint64(3846638),
"response_1xx_count": uint64(105),
"response_2xx_count": uint64(205),
"response_3xx_count": uint64(305),
"response_4xx_count": uint64(405),
"response_5xx_count": uint64(505),
"weight": uint64(41),
"max_fails": uint64(42),
"fail_timeout": uint64(43),
"backup": bool(true),
"down": bool(true),
},
map[string]string{
"source": host,
"port": port,
"upstream": "::nogroups",
"upstream_address": "127.0.0.1:8080",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_cache",
map[string]interface{}{
"max_bytes": uint64(9223372036854776000),
"used_bytes": uint64(68639232),
"in_bytes": uint64(697138673),
"out_bytes": uint64(11305044106),
"miss": uint64(44),
"bypass": uint64(45),
"expired": uint64(46),
"stale": uint64(47),
"updating": uint64(48),
"revalidated": uint64(49),
"hit": uint64(50),
"scarce": uint64(51),
},
map[string]string{
"source": host,
"port": port,
"zone": "example",
})
acc.AssertContainsTaggedFields(
t,
"nginx_vts_cache",
map[string]interface{}{
"max_bytes": uint64(9223372036854776000),
"used_bytes": uint64(569856),
"in_bytes": uint64(551652333),
"out_bytes": uint64(1114889271),
"miss": uint64(52),
"bypass": uint64(53),
"expired": uint64(54),
"stale": uint64(55),
"updating": uint64(56),
"revalidated": uint64(57),
"hit": uint64(58),
"scarce": uint64(59),
},
map[string]string{
"source": host,
"port": port,
"zone": "static",
})
}