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prometheus/discovery/linode/linode_test.go

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// 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 linode
import (
"context"
"fmt"
"net/url"
"testing"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/config"
"github.com/prometheus/common/model"
"github.com/prometheus/common/promslog"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/discovery"
)
func TestLinodeSDRefresh(t *testing.T) {
sdmock := NewSDMock(t)
sdmock.Setup()
tests := map[string]struct {
region string
targetCount int
want []model.LabelSet
}{
"no_region": {region: "", targetCount: 4, want: []model.LabelSet{
{
"__address__": model.LabelValue("45.33.82.151:80"),
"__meta_linode_instance_id": model.LabelValue("26838044"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-1"),
"__meta_linode_image": model.LabelValue("linode/arch"),
"__meta_linode_private_ipv4": model.LabelValue("192.168.170.51"),
"__meta_linode_public_ipv4": model.LabelValue("45.33.82.151"),
"__meta_linode_public_ipv6": model.LabelValue("2600:3c03::f03c:92ff:fe1a:1382"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li1028-151.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("us-east"),
"__meta_linode_type": model.LabelValue("g6-standard-2"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("85899345920"),
"__meta_linode_specs_memory_bytes": model.LabelValue("4294967296"),
"__meta_linode_specs_vcpus": model.LabelValue("2"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("4194304000"),
"__meta_linode_extra_ips": model.LabelValue(",96.126.108.16,192.168.201.25,"),
},
{
"__address__": model.LabelValue("139.162.196.43:80"),
"__meta_linode_instance_id": model.LabelValue("26848419"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-2"),
"__meta_linode_image": model.LabelValue("linode/debian10"),
"__meta_linode_private_ipv4": model.LabelValue(""),
"__meta_linode_public_ipv4": model.LabelValue("139.162.196.43"),
"__meta_linode_public_ipv6": model.LabelValue("2a01:7e00::f03c:92ff:fe1a:9976"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li1359-43.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("eu-west"),
"__meta_linode_type": model.LabelValue("g6-standard-2"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("85899345920"),
"__meta_linode_specs_memory_bytes": model.LabelValue("4294967296"),
"__meta_linode_specs_vcpus": model.LabelValue("2"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("4194304000"),
},
{
"__address__": model.LabelValue("192.53.120.25:80"),
"__meta_linode_instance_id": model.LabelValue("26837938"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-3"),
"__meta_linode_image": model.LabelValue("linode/ubuntu20.04"),
"__meta_linode_private_ipv4": model.LabelValue(""),
"__meta_linode_public_ipv4": model.LabelValue("192.53.120.25"),
"__meta_linode_public_ipv6": model.LabelValue("2600:3c04::f03c:92ff:fe1a:fb68"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li2216-25.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("ca-central"),
"__meta_linode_type": model.LabelValue("g6-standard-1"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("53687091200"),
"__meta_linode_specs_memory_bytes": model.LabelValue("2147483648"),
"__meta_linode_specs_vcpus": model.LabelValue("1"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("2097152000"),
"__meta_linode_ipv6_ranges": model.LabelValue(",2600:3c04:e001:456::/64,"),
},
{
"__address__": model.LabelValue("66.228.47.103:80"),
"__meta_linode_instance_id": model.LabelValue("26837992"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-4"),
"__meta_linode_image": model.LabelValue("linode/ubuntu20.04"),
"__meta_linode_private_ipv4": model.LabelValue("192.168.148.94"),
"__meta_linode_public_ipv4": model.LabelValue("66.228.47.103"),
"__meta_linode_public_ipv6": model.LabelValue("2600:3c03::f03c:92ff:fe1a:fb4c"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li328-103.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("us-east"),
"__meta_linode_type": model.LabelValue("g6-nanode-1"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("26843545600"),
"__meta_linode_specs_memory_bytes": model.LabelValue("1073741824"),
"__meta_linode_specs_vcpus": model.LabelValue("1"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("1048576000"),
"__meta_linode_extra_ips": model.LabelValue(",172.104.18.104,"),
"__meta_linode_ipv6_ranges": model.LabelValue(",2600:3c03:e000:123::/64,"),
},
}},
"us-east": {region: "us-east", targetCount: 2, want: []model.LabelSet{
{
"__address__": model.LabelValue("45.33.82.151:80"),
"__meta_linode_instance_id": model.LabelValue("26838044"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-1"),
"__meta_linode_image": model.LabelValue("linode/arch"),
"__meta_linode_private_ipv4": model.LabelValue("192.168.170.51"),
"__meta_linode_public_ipv4": model.LabelValue("45.33.82.151"),
"__meta_linode_public_ipv6": model.LabelValue("2600:3c03::f03c:92ff:fe1a:1382"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li1028-151.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("us-east"),
"__meta_linode_type": model.LabelValue("g6-standard-2"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("85899345920"),
"__meta_linode_specs_memory_bytes": model.LabelValue("4294967296"),
"__meta_linode_specs_vcpus": model.LabelValue("2"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("4194304000"),
"__meta_linode_extra_ips": model.LabelValue(",96.126.108.16,192.168.201.25,"),
},
{
"__address__": model.LabelValue("66.228.47.103:80"),
"__meta_linode_instance_id": model.LabelValue("26837992"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-4"),
"__meta_linode_image": model.LabelValue("linode/ubuntu20.04"),
"__meta_linode_private_ipv4": model.LabelValue("192.168.148.94"),
"__meta_linode_public_ipv4": model.LabelValue("66.228.47.103"),
"__meta_linode_public_ipv6": model.LabelValue("2600:3c03::f03c:92ff:fe1a:fb4c"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li328-103.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("us-east"),
"__meta_linode_type": model.LabelValue("g6-nanode-1"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("26843545600"),
"__meta_linode_specs_memory_bytes": model.LabelValue("1073741824"),
"__meta_linode_specs_vcpus": model.LabelValue("1"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("1048576000"),
"__meta_linode_extra_ips": model.LabelValue(",172.104.18.104,"),
"__meta_linode_ipv6_ranges": model.LabelValue(",2600:3c03:e000:123::/64,"),
},
}},
"us-central": {region: "ca-central", targetCount: 1, want: []model.LabelSet{
{
"__address__": model.LabelValue("192.53.120.25:80"),
"__meta_linode_instance_id": model.LabelValue("26837938"),
"__meta_linode_instance_label": model.LabelValue("prometheus-linode-sd-exporter-3"),
"__meta_linode_image": model.LabelValue("linode/ubuntu20.04"),
"__meta_linode_private_ipv4": model.LabelValue(""),
"__meta_linode_public_ipv4": model.LabelValue("192.53.120.25"),
"__meta_linode_public_ipv6": model.LabelValue("2600:3c04::f03c:92ff:fe1a:fb68"),
"__meta_linode_private_ipv4_rdns": model.LabelValue(""),
"__meta_linode_public_ipv4_rdns": model.LabelValue("li2216-25.members.linode.com"),
"__meta_linode_public_ipv6_rdns": model.LabelValue(""),
"__meta_linode_region": model.LabelValue("ca-central"),
"__meta_linode_type": model.LabelValue("g6-standard-1"),
"__meta_linode_status": model.LabelValue("running"),
"__meta_linode_tags": model.LabelValue(",monitoring,"),
"__meta_linode_group": model.LabelValue(""),
"__meta_linode_gpus": model.LabelValue("0"),
"__meta_linode_hypervisor": model.LabelValue("kvm"),
"__meta_linode_backups": model.LabelValue("disabled"),
"__meta_linode_specs_disk_bytes": model.LabelValue("53687091200"),
"__meta_linode_specs_memory_bytes": model.LabelValue("2147483648"),
"__meta_linode_specs_vcpus": model.LabelValue("1"),
"__meta_linode_specs_transfer_bytes": model.LabelValue("2097152000"),
"__meta_linode_ipv6_ranges": model.LabelValue(",2600:3c04:e001:456::/64,"),
},
}},
}
for _, tc := range tests {
cfg := DefaultSDConfig
if tc.region != "" {
cfg.Region = tc.region
}
cfg.HTTPClientConfig.Authorization = &config.Authorization{
Credentials: tokenID,
Type: "Bearer",
}
reg := prometheus.NewRegistry()
refreshMetrics := discovery.NewRefreshMetrics(reg)
metrics := cfg.NewDiscovererMetrics(reg, refreshMetrics)
require.NoError(t, metrics.Register())
defer metrics.Unregister()
defer refreshMetrics.Unregister()
d, err := NewDiscovery(&cfg, promslog.NewNopLogger(), metrics)
require.NoError(t, err)
endpoint, err := url.Parse(sdmock.Endpoint())
require.NoError(t, err)
d.client.SetBaseURL(endpoint.String())
tgs, err := d.refresh(context.Background())
require.NoError(t, err)
require.Len(t, tgs, 1)
tg := tgs[0]
require.NotNil(t, tg)
require.NotNil(t, tg.Targets)
require.Len(t, tg.Targets, tc.targetCount)
for i, lbls := range tc.want {
t.Run(fmt.Sprintf("item %d", i), func(t *testing.T) {
require.Equal(t, lbls, tg.Targets[i])
})
}
}
}
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