mirror of
https://github.com/fluxcd/flagger.git
synced 2026-04-15 06:57:34 +00:00
108 lines
3.0 KiB
Go
108 lines
3.0 KiB
Go
/*
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Copyright 2021 The Flux 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package providers
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import (
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"context"
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"fmt"
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"net/url"
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"time"
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influxdb2 "github.com/influxdata/influxdb-client-go/v2"
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flaggerv1 "github.com/fluxcd/flagger/pkg/apis/flagger/v1beta1"
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)
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type InfluxdbProvider struct {
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client influxdb2.Client
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org string
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}
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func NewInfluxdbProvider(provider flaggerv1.MetricTemplateProvider,
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credentials map[string][]byte) (*InfluxdbProvider, error) {
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influxURL, err := url.Parse(provider.Address)
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var token string
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var influxProvider InfluxdbProvider
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if provider.Address == "" || err != nil {
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return nil, fmt.Errorf("%s address %s is not a valid URL", provider.Type, provider.Address)
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}
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if provider.SecretRef != nil {
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if authToken, ok := credentials["token"]; ok {
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token = string(authToken)
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} else {
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return nil, fmt.Errorf("%s credentials does not contain an authentication token", provider.Type)
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}
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if org, ok := credentials["org"]; ok {
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influxProvider.org = string(org)
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} else {
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return nil, fmt.Errorf("%s credentials does not contain an organisation", provider.Type)
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}
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}
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client := influxdb2.NewClient(influxURL.String(), token)
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influxProvider.client = client
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return &influxProvider, nil
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}
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func (i *InfluxdbProvider) RunQuery(query string) (float64, error) {
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queryAPI := i.client.QueryAPI(i.org)
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ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
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defer cancel()
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result, err := queryAPI.Query(ctx, query)
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if err != nil {
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return 0, fmt.Errorf("error accessing influxdb query api: %s", err)
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}
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for result.Next() {
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if result.Err() != nil {
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return 0, fmt.Errorf("query error: %s", err)
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}
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if result.Record().Value() == nil {
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return 0, fmt.Errorf("invalid response: %s: %w", result.Record().String(), ErrNoValuesFound)
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}
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if float, ok := result.Record().Value().(float64); ok {
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return float, nil
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}
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return 0, fmt.Errorf("invalid response: %s", result.Record().String())
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}
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return 0, nil
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}
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// IsOnline runs a simple query against the default bucket.
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func (i *InfluxdbProvider) IsOnline() (bool, error) {
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queryAPI := i.client.QueryAPI(i.org)
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ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
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defer cancel()
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result, err := queryAPI.Query(ctx, `from(bucket: "default") |> range(start: -2h)`)
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if err != nil {
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return false, fmt.Errorf("error accessing influxdb query api: %s", err)
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}
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for result.Next() {
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if result.Err() != nil {
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return false, fmt.Errorf("query error: %s", err)
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}
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}
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return true, nil
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}
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