mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-06 17:57:51 +00:00
2984604be8
This commit introduces advanced configuration. The rate-interval and label-prefix flags are removed, and replaced by a configuration file that allows you to specify series queries and the rules for transforming those into metrics queries and API resources.
32 lines
843 B
Go
32 lines
843 B
Go
package config
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import (
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"fmt"
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"io/ioutil"
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"os"
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yaml "gopkg.in/yaml.v2"
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)
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// FromFile loads the configuration from a particular file.
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func FromFile(filename string) (*MetricsDiscoveryConfig, error) {
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file, err := os.Open(filename)
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defer file.Close()
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if err != nil {
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return nil, fmt.Errorf("unable to load metrics discovery config file: %v", err)
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}
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contents, err := ioutil.ReadAll(file)
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if err != nil {
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return nil, fmt.Errorf("unable to load metrics discovery config file: %v", err)
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}
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return FromYAML(contents)
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}
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// FromYAML loads the configuration from a blob of YAML.
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func FromYAML(contents []byte) (*MetricsDiscoveryConfig, error) {
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var cfg MetricsDiscoveryConfig
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if err := yaml.Unmarshal(contents, &cfg); err != nil {
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return nil, fmt.Errorf("unable to parse metrics discovery config: %v", err)
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}
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return &cfg, nil
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}
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