mirror of https://github.com/prometheus/prometheus
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
401 lines
10 KiB
401 lines
10 KiB
// Copyright 2021 The Prometheus Authors |
|
// Licensed 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. |
|
// See the License for the specific language governing permissions and |
|
// limitations under the License. |
|
|
|
package http |
|
|
|
import ( |
|
"context" |
|
"fmt" |
|
"net/http" |
|
"net/http/httptest" |
|
"testing" |
|
"time" |
|
|
|
"github.com/go-kit/log" |
|
"github.com/prometheus/common/config" |
|
"github.com/prometheus/common/model" |
|
"github.com/stretchr/testify/require" |
|
|
|
"github.com/prometheus/prometheus/discovery/targetgroup" |
|
) |
|
|
|
func TestHTTPValidRefresh(t *testing.T) { |
|
ts := httptest.NewServer(http.FileServer(http.Dir("./fixtures"))) |
|
t.Cleanup(ts.Close) |
|
|
|
cfg := SDConfig{ |
|
HTTPClientConfig: config.DefaultHTTPClientConfig, |
|
URL: ts.URL + "/http_sd.good.json", |
|
RefreshInterval: model.Duration(30 * time.Second), |
|
} |
|
|
|
d, err := NewDiscovery(&cfg, log.NewNopLogger()) |
|
require.NoError(t, err) |
|
|
|
ctx := context.Background() |
|
tgs, err := d.refresh(ctx) |
|
require.NoError(t, err) |
|
|
|
expectedTargets := []*targetgroup.Group{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1:9090"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("__meta_datacenter"): model.LabelValue("bru1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL + "/http_sd.good.json"), |
|
}, |
|
Source: urlSource(ts.URL+"/http_sd.good.json", 0), |
|
}, |
|
} |
|
require.Equal(t, tgs, expectedTargets) |
|
} |
|
|
|
func TestHTTPInvalidCode(t *testing.T) { |
|
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
|
w.WriteHeader(http.StatusBadRequest) |
|
})) |
|
|
|
t.Cleanup(ts.Close) |
|
|
|
cfg := SDConfig{ |
|
HTTPClientConfig: config.DefaultHTTPClientConfig, |
|
URL: ts.URL, |
|
RefreshInterval: model.Duration(30 * time.Second), |
|
} |
|
|
|
d, err := NewDiscovery(&cfg, log.NewNopLogger()) |
|
require.NoError(t, err) |
|
|
|
ctx := context.Background() |
|
_, err = d.refresh(ctx) |
|
require.EqualError(t, err, "server returned HTTP status 400 Bad Request") |
|
} |
|
|
|
func TestHTTPInvalidFormat(t *testing.T) { |
|
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
|
fmt.Fprintln(w, "{}") |
|
})) |
|
|
|
t.Cleanup(ts.Close) |
|
|
|
cfg := SDConfig{ |
|
HTTPClientConfig: config.DefaultHTTPClientConfig, |
|
URL: ts.URL, |
|
RefreshInterval: model.Duration(30 * time.Second), |
|
} |
|
|
|
d, err := NewDiscovery(&cfg, log.NewNopLogger()) |
|
require.NoError(t, err) |
|
|
|
ctx := context.Background() |
|
_, err = d.refresh(ctx) |
|
require.EqualError(t, err, `unsupported content type "text/plain; charset=utf-8"`) |
|
} |
|
|
|
func TestContentTypeRegex(t *testing.T) { |
|
cases := []struct { |
|
header string |
|
match bool |
|
}{ |
|
{ |
|
header: "application/json;charset=utf-8", |
|
match: true, |
|
}, |
|
{ |
|
header: "application/json;charset=UTF-8", |
|
match: true, |
|
}, |
|
{ |
|
header: "Application/JSON;Charset=\"utf-8\"", |
|
match: true, |
|
}, |
|
{ |
|
header: "application/json; charset=\"utf-8\"", |
|
match: true, |
|
}, |
|
{ |
|
header: "application/json", |
|
match: true, |
|
}, |
|
{ |
|
header: "application/jsonl; charset=\"utf-8\"", |
|
match: false, |
|
}, |
|
{ |
|
header: "application/json;charset=UTF-9", |
|
match: false, |
|
}, |
|
{ |
|
header: "application /json;charset=UTF-8", |
|
match: false, |
|
}, |
|
{ |
|
header: "application/ json;charset=UTF-8", |
|
match: false, |
|
}, |
|
{ |
|
header: "application/json;", |
|
match: false, |
|
}, |
|
{ |
|
header: "charset=UTF-8", |
|
match: false, |
|
}, |
|
} |
|
|
|
for _, test := range cases { |
|
t.Run(test.header, func(t *testing.T) { |
|
require.Equal(t, test.match, matchContentType.MatchString(test.header)) |
|
}) |
|
} |
|
} |
|
|
|
func TestSourceDisappeared(t *testing.T) { |
|
var stubResponse string |
|
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
|
w.Header().Set("Content-Type", "application/json") |
|
fmt.Fprintln(w, stubResponse) |
|
})) |
|
t.Cleanup(ts.Close) |
|
|
|
cases := []struct { |
|
responses []string |
|
expectedTargets [][]*targetgroup.Group |
|
}{ |
|
{ |
|
responses: []string{ |
|
`[]`, |
|
`[]`, |
|
}, |
|
expectedTargets: [][]*targetgroup.Group{{}, {}}, |
|
}, |
|
{ |
|
responses: []string{ |
|
`[{"labels": {"k": "1"}, "targets": ["127.0.0.1"]}]`, |
|
`[{"labels": {"k": "1"}, "targets": ["127.0.0.1"]}, {"labels": {"k": "2"}, "targets": ["127.0.0.1"]}]`, |
|
}, |
|
expectedTargets: [][]*targetgroup.Group{ |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
}, |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("2"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 1), |
|
}, |
|
}, |
|
}, |
|
}, |
|
{ |
|
responses: []string{ |
|
`[{"labels": {"k": "1"}, "targets": ["127.0.0.1"]}, {"labels": {"k": "2"}, "targets": ["127.0.0.1"]}]`, |
|
`[{"labels": {"k": "1"}, "targets": ["127.0.0.1"]}]`, |
|
}, |
|
expectedTargets: [][]*targetgroup.Group{ |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("2"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 1), |
|
}, |
|
}, |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
{ |
|
Targets: nil, |
|
Labels: nil, |
|
Source: urlSource(ts.URL, 1), |
|
}, |
|
}, |
|
}, |
|
}, |
|
{ |
|
responses: []string{ |
|
`[{"labels": {"k": "1"}, "targets": ["127.0.0.1"]}, {"labels": {"k": "2"}, "targets": ["127.0.0.1"]}, {"labels": {"k": "3"}, "targets": ["127.0.0.1"]}]`, |
|
`[{"labels": {"k": "1"}, "targets": ["127.0.0.1"]}]`, |
|
`[{"labels": {"k": "v"}, "targets": ["127.0.0.2"]}, {"labels": {"k": "vv"}, "targets": ["127.0.0.3"]}]`, |
|
}, |
|
expectedTargets: [][]*targetgroup.Group{ |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("2"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 1), |
|
}, |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("3"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 2), |
|
}, |
|
}, |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.1"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("1"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
{ |
|
Targets: nil, |
|
Labels: nil, |
|
Source: urlSource(ts.URL, 1), |
|
}, |
|
{ |
|
Targets: nil, |
|
Labels: nil, |
|
Source: urlSource(ts.URL, 2), |
|
}, |
|
}, |
|
{ |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.2"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("v"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 0), |
|
}, |
|
{ |
|
Targets: []model.LabelSet{ |
|
{ |
|
model.AddressLabel: model.LabelValue("127.0.0.3"), |
|
}, |
|
}, |
|
Labels: model.LabelSet{ |
|
model.LabelName("k"): model.LabelValue("vv"), |
|
model.LabelName("__meta_url"): model.LabelValue(ts.URL), |
|
}, |
|
Source: urlSource(ts.URL, 1), |
|
}, |
|
}, |
|
}, |
|
}, |
|
} |
|
|
|
cfg := SDConfig{ |
|
HTTPClientConfig: config.DefaultHTTPClientConfig, |
|
URL: ts.URL, |
|
RefreshInterval: model.Duration(1 * time.Second), |
|
} |
|
d, err := NewDiscovery(&cfg, log.NewNopLogger()) |
|
require.NoError(t, err) |
|
for _, test := range cases { |
|
ctx := context.Background() |
|
for i, res := range test.responses { |
|
stubResponse = res |
|
tgs, err := d.refresh(ctx) |
|
require.NoError(t, err) |
|
require.Equal(t, test.expectedTargets[i], tgs) |
|
} |
|
} |
|
}
|
|
|