mirror of https://github.com/prometheus/prometheus
David Dymko
3 years ago
committed by
Julien Pivotto
11 changed files with 662 additions and 3 deletions
@ -0,0 +1,170 @@
|
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// Copyright 2022 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
|
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// you may not use this file except in compliance with the License.
|
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// You may obtain a copy of the License at
|
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//
|
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// http://www.apache.org/licenses/LICENSE-2.0
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//
|
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// Unless required by applicable law or agreed to in writing, software
|
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// distributed under the License is distributed on an "AS IS" BASIS,
|
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package vultr |
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import ( |
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"fmt" |
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"net/http" |
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"net/http/httptest" |
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"testing" |
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) |
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|
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// SDMock is the interface for the Vultr mock
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type SDMock struct { |
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t *testing.T |
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Server *httptest.Server |
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Mux *http.ServeMux |
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} |
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|
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// NewSDMock returns a new SDMock.
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func NewSDMock(t *testing.T) *SDMock { |
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return &SDMock{ |
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t: t, |
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} |
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} |
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// Endpoint returns the URI to the mock server
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func (m *SDMock) Endpoint() string { |
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return m.Server.URL + "/" |
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} |
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// Setup creates the mock server
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func (m *SDMock) Setup() { |
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m.Mux = http.NewServeMux() |
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m.Server = httptest.NewServer(m.Mux) |
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} |
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// ShutdownServer creates the mock server
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func (m *SDMock) ShutdownServer() { |
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m.Server.Close() |
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} |
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const APIKey = "ABCBTDG35OTGH2UKCC3S6CNMDUPCN3ZWSGFQ" |
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// HandleInstanceList mocks vultr instances list.
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func (m *SDMock) HandleInstanceList() { |
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m.Mux.HandleFunc("/v2/instances", func(w http.ResponseWriter, r *http.Request) { |
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if r.Header.Get("Authorization") != fmt.Sprintf("Bearer %s", APIKey) { |
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w.WriteHeader(http.StatusForbidden) |
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return |
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} |
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|
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w.Header().Add("content-type", "application/json; charset=utf-8") |
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w.WriteHeader(http.StatusOK) |
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fmt.Fprint(w, ` |
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{ |
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"instances": [ |
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{ |
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"id": "dbdbd38c-9884-4c92-95fe-899e50dee717", |
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"os": "Marketplace", |
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"ram": 4096, |
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"disk": 128, |
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"main_ip": "149.28.234.27", |
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"vcpu_count": 2, |
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"region": "ewr", |
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"plan": "vhf-2c-4gb", |
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"date_created": "2022-03-10T02:25:30+00:00", |
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"status": "active", |
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"allowed_bandwidth": 3000, |
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"netmask_v4": "255.255.254.0", |
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"gateway_v4": "149.28.234.1", |
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"power_status": "running", |
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"server_status": "ok", |
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"v6_network": "", |
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"v6_main_ip": "", |
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"v6_network_size": 0, |
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"label": "np-2-eae38a19b0f3", |
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"internal_ip": "10.1.96.5", |
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"kvm": "https://my.vultr.com/subs/vps/novnc/api.php?data=djJ8Q2k2NlVpNUlZNE5kM3NZMWdBNzFKUkVadDBDU3ItTEJ8-yNWBdMn1AWPqX-EnpTVbA1qBeP0txBZbahSOh3UtHIL2p0fZKEdFJwFNjWtvBKC9BGvJkoJdWBoo7hF-6RzavdUKPD3KIU5xD_T6keV8X-PPukPgXMuSUaAqurAuJvwAWXcTcodBjaIH961xgbvfkFyqVl0ZgHf3ErZQE-EmpZ0Jc3uF1DO2McJ4UL8KUvHLwa-ZDUZ_AtWJjQWsjNkxjvOiA", |
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"hostname": "np-2-eae38a19b0f3", |
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"os_id": 426, |
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"app_id": 0, |
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"image_id": "vke-worker", |
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"firewall_group_id": "", |
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"features": ["backups"], |
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"tags": ["tag1", "tag2", "tag3"] |
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}, |
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{ |
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"id": "fccb117c-62f7-4b17-995d-a8e56dd30b33", |
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"os": "Marketplace", |
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"ram": 4096, |
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"disk": 128, |
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"main_ip": "45.63.1.222", |
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"vcpu_count": 2, |
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"region": "ewr", |
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"plan": "vhf-2c-4gb", |
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"date_created": "2022-03-10T02:25:32+00:00", |
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"status": "active", |
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"allowed_bandwidth": 3000, |
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"netmask_v4": "255.255.254.0", |
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"gateway_v4": "45.63.0.1", |
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"power_status": "running", |
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"server_status": "ok", |
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"v6_network": "", |
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"v6_main_ip": "", |
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"v6_network_size": 0, |
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"label": "np-2-fd0714b5fe42", |
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"internal_ip": "10.1.96.6", |
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"kvm": "https://my.vultr.com/subs/vps/novnc/api.php?data=djJ8R0tzbmI0VWVfSDR6VE51Q0FGUTBCamwyTFNzZDNkVTF8Zwm93t6L2BLTYSNmM0g0Ppf43r71aIbqLiJCx6_1NuCugUqIKz8POshH91vi6XXDorpb3hYTk8RrJWQbaFMak7XbbfMObzsrFxKAQUVGfbjTBIHCKftxNIXeQOp1fEIDa3p-vkfSxEpx6ZX8nChGYYSVuOjS1twV6oI_IKtHXKdFJiVFz0Unay_K3HuXW_H2wrYSjmAChloR-eA1jSmBXLccJQ", |
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"hostname": "np-2-fd0714b5fe42", |
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"os_id": 426, |
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"app_id": 0, |
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"image_id": "vke-worker", |
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"firewall_group_id": "", |
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"features": [], |
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"tags": [] |
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}, |
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{ |
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"id": "c4e58767-f61b-4c5e-9bce-43761cc04868", |
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"os": "Marketplace", |
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"ram": 4096, |
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"disk": 128, |
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"main_ip": "149.28.237.151", |
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"vcpu_count": 2, |
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"region": "ewr", |
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"plan": "vhf-2c-4gb", |
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"date_created": "2022-03-10T02:25:33+00:00", |
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"status": "active", |
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"allowed_bandwidth": 3000, |
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"netmask_v4": "255.255.254.0", |
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"gateway_v4": "149.28.236.1", |
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"power_status": "running", |
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"server_status": "ok", |
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"v6_network": "", |
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"v6_main_ip": "", |
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"v6_network_size": 0, |
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"label": "np-2-d04e7829fa43", |
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"internal_ip": "10.1.96.7", |
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"kvm": "https://my.vultr.com/subs/vps/novnc/api.php?data=djJ8NFEzbFZmV2hOUWNrc2R4bndnckhFQTJ3ME1yWmxVeW98P-p-KeyNtP73wzVvuWZSOrV5PvQDiBmYyB3cp99btIy5nczmvX8DOGSChbEldk3idKNdFLQMIieWnpR5xU5K-dMYlL6n6oYv2u-rh8zxS6-8hQsSbL2OsoywNPoLpQ3xPkT9Rb-yPrZX4fDLbt8yPVKDHqHO0GB-TxVPemueovfkkUZMXSraAXgHtl1YgK2uLMQf1WBFVzgwnQ7MYcfMGGYFQw", |
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"hostname": "np-2-d04e7829fa43", |
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"os_id": 426, |
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"app_id": 0, |
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"image_id": "vke-worker", |
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"firewall_group_id": "", |
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"features": [], |
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"tags": [] |
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} |
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], |
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"meta": { |
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"total": 3, |
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"links": { |
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"next": "", |
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"prev": "" |
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} |
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} |
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} |
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`) |
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}) |
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} |
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@ -0,0 +1,212 @@
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// Copyright 2022 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
|
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
|
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// distributed under the License is distributed on an "AS IS" BASIS,
|
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package vultr |
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import ( |
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"context" |
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"fmt" |
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"net" |
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"net/http" |
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"strconv" |
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"strings" |
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"time" |
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"github.com/go-kit/log" |
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"github.com/prometheus/common/config" |
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"github.com/prometheus/common/model" |
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"github.com/prometheus/common/version" |
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"github.com/vultr/govultr/v2" |
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"github.com/prometheus/prometheus/discovery" |
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"github.com/prometheus/prometheus/discovery/refresh" |
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"github.com/prometheus/prometheus/discovery/targetgroup" |
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) |
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const ( |
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vultrInstanceLabel = model.MetaLabelPrefix + "vultr_instance_" |
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vultrInstanceLabelID = vultrInstanceLabel + "id" |
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vultrInstanceLabelLabel = vultrInstanceLabel + "label" |
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vultrInstanceLabelOS = vultrInstanceLabel + "os" |
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vultrInstanceLabelOSID = vultrInstanceLabel + "os_id" |
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vultrInstanceLabelRegion = vultrInstanceLabel + "region" |
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vultrInstanceLabelPlan = vultrInstanceLabel + "plan" |
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vultrInstanceLabelMainIP = vultrInstanceLabel + "main_ip" |
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vultrInstanceLabelMainIPV6 = vultrInstanceLabel + "main_ipv6" |
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vultrInstanceLabelInternalIP = vultrInstanceLabel + "internal_ip" |
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vultrInstanceLabelFeatures = vultrInstanceLabel + "features" |
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vultrInstanceLabelTags = vultrInstanceLabel + "tags" |
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vultrInstanceLabelHostname = vultrInstanceLabel + "hostname" |
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vultrInstanceLabelServerStatus = vultrInstanceLabel + "server_status" |
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vultrInstanceLabelVCPU = vultrInstanceLabel + "vcpu_count" |
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vultrInstanceLabelMemory = vultrInstanceLabel + "ram_bytes" |
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vultrInstanceLabelBandwidth = vultrInstanceLabel + "allowed_bandwidth_gb" |
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vultrInstanceLabelDisk = vultrInstanceLabel + "disk_gb" |
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separator = "," |
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) |
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// DefaultSDConfig is the default Vultr SD configuration.
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var DefaultSDConfig = SDConfig{ |
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Port: 80, |
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RefreshInterval: model.Duration(60 * time.Second), |
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HTTPClientConfig: config.DefaultHTTPClientConfig, |
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} |
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func init() { |
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discovery.RegisterConfig(&SDConfig{}) |
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} |
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type SDConfig struct { |
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HTTPClientConfig config.HTTPClientConfig `yaml:",inline"` |
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RefreshInterval model.Duration `yaml:"refresh_interval"` |
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Port int `yaml:"port"` |
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} |
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|
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// Name returns the name of the Config.
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func (*SDConfig) Name() string { return "vultr" } |
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|
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// NewDiscoverer returns a Discoverer for the Config.
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func (c *SDConfig) NewDiscoverer(opts discovery.DiscovererOptions) (discovery.Discoverer, error) { |
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return NewDiscovery(c, opts.Logger) |
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} |
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// SetDirectory joins any relative file paths with dir.
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func (c *SDConfig) SetDirectory(dir string) { |
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c.HTTPClientConfig.SetDirectory(dir) |
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} |
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// UnmarshalYAML implements the yaml.Unmarshaler interface.
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func (c *SDConfig) UnmarshalYAML(unmarshal func(interface{}) error) error { |
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*c = DefaultSDConfig |
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type plain SDConfig |
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if err := unmarshal((*plain)(c)); err != nil { |
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return err |
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} |
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return c.HTTPClientConfig.Validate() |
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} |
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// Discovery periodically performs Vultr requests. It implements
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// the Discoverer interface.
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type Discovery struct { |
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*refresh.Discovery |
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client *govultr.Client |
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port int |
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} |
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// NewDiscovery returns a new Discovery which periodically refreshes its targets.
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func NewDiscovery(conf *SDConfig, logger log.Logger) (*Discovery, error) { |
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d := &Discovery{ |
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port: conf.Port, |
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} |
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rt, err := config.NewRoundTripperFromConfig(conf.HTTPClientConfig, "vultr_sd") |
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if err != nil { |
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return nil, err |
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} |
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d.client = govultr.NewClient(&http.Client{ |
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Transport: rt, |
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Timeout: time.Duration(conf.RefreshInterval), |
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}) |
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d.client.SetUserAgent(fmt.Sprintf("Prometheus/%s", version.Version)) |
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|
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if err != nil { |
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return nil, fmt.Errorf("error setting up vultr agent: %w", err) |
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} |
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d.Discovery = refresh.NewDiscovery( |
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logger, |
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"vultr", |
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time.Duration(conf.RefreshInterval), |
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d.refresh, |
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) |
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return d, nil |
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} |
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func (d *Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) { |
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tg := &targetgroup.Group{ |
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Source: "Vultr", |
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} |
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instances, err := d.listInstances(ctx) |
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if err != nil { |
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return nil, err |
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} |
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for _, instance := range instances { |
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labels := model.LabelSet{ |
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vultrInstanceLabelID: model.LabelValue(instance.ID), |
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vultrInstanceLabelLabel: model.LabelValue(instance.Label), |
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vultrInstanceLabelOS: model.LabelValue(instance.Os), |
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vultrInstanceLabelOSID: model.LabelValue(strconv.Itoa(instance.OsID)), |
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vultrInstanceLabelRegion: model.LabelValue(instance.Region), |
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vultrInstanceLabelPlan: model.LabelValue(instance.Plan), |
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vultrInstanceLabelVCPU: model.LabelValue(strconv.Itoa(instance.VCPUCount)), |
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vultrInstanceLabelMemory: model.LabelValue(strconv.Itoa(instance.RAM)), |
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vultrInstanceLabelBandwidth: model.LabelValue(strconv.Itoa(instance.AllowedBandwidth)), |
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vultrInstanceLabelDisk: model.LabelValue(strconv.Itoa(instance.Disk)), |
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vultrInstanceLabelMainIP: model.LabelValue(instance.MainIP), |
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vultrInstanceLabelMainIPV6: model.LabelValue(instance.V6MainIP), |
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vultrInstanceLabelInternalIP: model.LabelValue(instance.InternalIP), |
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vultrInstanceLabelHostname: model.LabelValue(instance.Hostname), |
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vultrInstanceLabelServerStatus: model.LabelValue(instance.ServerStatus), |
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} |
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|
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addr := net.JoinHostPort(instance.MainIP, strconv.FormatUint(uint64(d.port), 10)) |
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labels[model.AddressLabel] = model.LabelValue(addr) |
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|
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// We surround the separated list with the separator as well. This way regular expressions
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// in relabeling rules don't have to consider feature positions.
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if len(instance.Features) > 0 { |
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features := separator + strings.Join(instance.Features, separator) + separator |
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labels[vultrInstanceLabelFeatures] = model.LabelValue(features) |
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} |
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|
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if len(instance.Tags) > 0 { |
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tags := separator + strings.Join(instance.Tags, separator) + separator |
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labels[vultrInstanceLabelTags] = model.LabelValue(tags) |
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} |
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|
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tg.Targets = append(tg.Targets, labels) |
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} |
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|
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return []*targetgroup.Group{tg}, nil |
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} |
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|
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func (d *Discovery) listInstances(ctx context.Context) ([]govultr.Instance, error) { |
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var instances []govultr.Instance |
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|
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listOptions := &govultr.ListOptions{ |
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PerPage: 100, |
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} |
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|
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for { |
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pagedInstances, meta, err := d.client.Instance.List(ctx, listOptions) |
||||
if err != nil { |
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return nil, err |
||||
} |
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instances = append(instances, pagedInstances...) |
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|
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if meta.Links.Next == "" { |
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break |
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} else { |
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listOptions.Cursor = meta.Links.Next |
||||
continue |
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} |
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} |
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|
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return instances, nil |
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} |
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@ -0,0 +1,128 @@
|
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// Copyright 2022 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 vultr |
||||
|
||||
import ( |
||||
"context" |
||||
"fmt" |
||||
"net/url" |
||||
"testing" |
||||
|
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"github.com/go-kit/log" |
||||
"github.com/prometheus/common/model" |
||||
"github.com/stretchr/testify/require" |
||||
) |
||||
|
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type VultrSDTestSuite struct { |
||||
Mock *SDMock |
||||
} |
||||
|
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func (s *VultrSDTestSuite) TearDownSuite() { |
||||
s.Mock.ShutdownServer() |
||||
} |
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|
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func (s *VultrSDTestSuite) SetupTest(t *testing.T) { |
||||
s.Mock = NewSDMock(t) |
||||
s.Mock.Setup() |
||||
|
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s.Mock.HandleInstanceList() |
||||
} |
||||
|
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func TestVultrSDRefresh(t *testing.T) { |
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sdMock := &VultrSDTestSuite{} |
||||
sdMock.SetupTest(t) |
||||
t.Cleanup(sdMock.TearDownSuite) |
||||
|
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cfg := DefaultSDConfig |
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cfg.HTTPClientConfig.BearerToken = APIKey |
||||
d, err := NewDiscovery(&cfg, log.NewNopLogger()) |
||||
require.NoError(t, err) |
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endpoint, err := url.Parse(sdMock.Mock.Endpoint()) |
||||
require.NoError(t, err) |
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d.client.BaseURL = endpoint |
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|
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ctx := context.Background() |
||||
tgs, err := d.refresh(ctx) |
||||
require.NoError(t, err) |
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|
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require.Equal(t, 1, len(tgs)) |
||||
|
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tg := tgs[0] |
||||
require.NotNil(t, tg) |
||||
require.NotNil(t, tg.Targets) |
||||
require.Equal(t, 3, len(tg.Targets)) |
||||
|
||||
for i, k := range []model.LabelSet{ |
||||
{ |
||||
"__address__": model.LabelValue("149.28.234.27:80"), |
||||
"__meta_vultr_instance_id": model.LabelValue("dbdbd38c-9884-4c92-95fe-899e50dee717"), |
||||
"__meta_vultr_instance_label": model.LabelValue("np-2-eae38a19b0f3"), |
||||
"__meta_vultr_instance_os": model.LabelValue("Marketplace"), |
||||
"__meta_vultr_instance_os_id": model.LabelValue("426"), |
||||
"__meta_vultr_instance_region": model.LabelValue("ewr"), |
||||
"__meta_vultr_instance_plan": model.LabelValue("vhf-2c-4gb"), |
||||
"__meta_vultr_instance_main_ip": model.LabelValue("149.28.234.27"), |
||||
"__meta_vultr_instance_internal_ip": model.LabelValue("10.1.96.5"), |
||||
"__meta_vultr_instance_main_ipv6": model.LabelValue(""), |
||||
"__meta_vultr_instance_features": model.LabelValue(",backups,"), |
||||
"__meta_vultr_instance_tags": model.LabelValue(",tag1,tag2,tag3,"), |
||||
"__meta_vultr_instance_hostname": model.LabelValue("np-2-eae38a19b0f3"), |
||||
"__meta_vultr_instance_server_status": model.LabelValue("ok"), |
||||
"__meta_vultr_instance_vcpu_count": model.LabelValue("2"), |
||||
"__meta_vultr_instance_ram_bytes": model.LabelValue("4096"), |
||||
"__meta_vultr_instance_disk_gb": model.LabelValue("128"), |
||||
"__meta_vultr_instance_allowed_bandwidth_gb": model.LabelValue("3000"), |
||||
}, |
||||
{ |
||||
"__address__": model.LabelValue("45.63.1.222:80"), |
||||
"__meta_vultr_instance_id": model.LabelValue("fccb117c-62f7-4b17-995d-a8e56dd30b33"), |
||||
"__meta_vultr_instance_label": model.LabelValue("np-2-fd0714b5fe42"), |
||||
"__meta_vultr_instance_os": model.LabelValue("Marketplace"), |
||||
"__meta_vultr_instance_os_id": model.LabelValue("426"), |
||||
"__meta_vultr_instance_region": model.LabelValue("ewr"), |
||||
"__meta_vultr_instance_plan": model.LabelValue("vhf-2c-4gb"), |
||||
"__meta_vultr_instance_main_ip": model.LabelValue("45.63.1.222"), |
||||
"__meta_vultr_instance_internal_ip": model.LabelValue("10.1.96.6"), |
||||
"__meta_vultr_instance_main_ipv6": model.LabelValue(""), |
||||
"__meta_vultr_instance_hostname": model.LabelValue("np-2-fd0714b5fe42"), |
||||
"__meta_vultr_instance_server_status": model.LabelValue("ok"), |
||||
"__meta_vultr_instance_vcpu_count": model.LabelValue("2"), |
||||
"__meta_vultr_instance_ram_bytes": model.LabelValue("4096"), |
||||
"__meta_vultr_instance_disk_gb": model.LabelValue("128"), |
||||
"__meta_vultr_instance_allowed_bandwidth_gb": model.LabelValue("3000"), |
||||
}, |
||||
{ |
||||
"__address__": model.LabelValue("149.28.237.151:80"), |
||||
"__meta_vultr_instance_id": model.LabelValue("c4e58767-f61b-4c5e-9bce-43761cc04868"), |
||||
"__meta_vultr_instance_label": model.LabelValue("np-2-d04e7829fa43"), |
||||
"__meta_vultr_instance_os": model.LabelValue("Marketplace"), |
||||
"__meta_vultr_instance_os_id": model.LabelValue("426"), |
||||
"__meta_vultr_instance_region": model.LabelValue("ewr"), |
||||
"__meta_vultr_instance_plan": model.LabelValue("vhf-2c-4gb"), |
||||
"__meta_vultr_instance_main_ip": model.LabelValue("149.28.237.151"), |
||||
"__meta_vultr_instance_internal_ip": model.LabelValue("10.1.96.7"), |
||||
"__meta_vultr_instance_main_ipv6": model.LabelValue(""), |
||||
"__meta_vultr_instance_hostname": model.LabelValue("np-2-d04e7829fa43"), |
||||
"__meta_vultr_instance_server_status": model.LabelValue("ok"), |
||||
"__meta_vultr_instance_vcpu_count": model.LabelValue("2"), |
||||
"__meta_vultr_instance_ram_bytes": model.LabelValue("4096"), |
||||
"__meta_vultr_instance_disk_gb": model.LabelValue("128"), |
||||
"__meta_vultr_instance_allowed_bandwidth_gb": model.LabelValue("3000"), |
||||
}, |
||||
} { |
||||
t.Run(fmt.Sprintf("item %d", i), func(t *testing.T) { |
||||
require.Equal(t, k, tg.Targets[i]) |
||||
}) |
||||
} |
||||
} |
||||
@ -0,0 +1,24 @@
|
||||
# An example scrape configuration for running Prometheus with |
||||
# Vultr. |
||||
|
||||
scrape_configs: |
||||
# Make Prometheus scrape itself for metrics. |
||||
- job_name: "prometheus" |
||||
static_configs: |
||||
- targets: ["localhost:9090"] |
||||
|
||||
# Discover Node Exporter instances to scrape. |
||||
- job_name: "node" |
||||
vultr_sd_configs: |
||||
- authorization: |
||||
credentials: "<replace with a Personal Access Token>" |
||||
relabel_configs: |
||||
# Only scrape targets that have a tag 'monitoring'. |
||||
- source_labels: [__meta_vultr_instance_tags] |
||||
regex: ".*,monitoring,.*" |
||||
action: keep |
||||
|
||||
# Use the public IPv6 address and port 9100 to scrape the target. |
||||
- source_labels: [__meta_vultr_instance_main_ipv6] |
||||
target_label: __address__ |
||||
replacement: "[$1]:9100" |
||||
Loading…
Reference in new issue