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Files were added to be built whether an extension is on or off. New build tags were added for each extension, while minimal and extended disappeared. added custom binary naming depending on extensions used and changed references from binary to binary-extended added automated blackbox tests for sync, search, scrub, metrics added contributor guidelines Signed-off-by: Alex Stan <alexandrustan96@yahoo.ro>
88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
//go:build !metrics
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// +build !metrics
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package monitoring
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import (
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"context"
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"crypto/tls"
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"encoding/json"
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"fmt"
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"net/http"
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"time"
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"zotregistry.io/zot/pkg/log"
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)
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const (
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httpTimeout = 1 * time.Minute
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)
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// MetricsConfig is used to configure the creation of a Node Exporter http client
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// that will connect to a particular zot instance.
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type MetricsConfig struct {
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// Address of the zot http server
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Address string
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// Transport to use for the http client.
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Transport *http.Transport
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// HTTPClient is the client to use.
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HTTPClient *http.Client
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}
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type MetricsClient struct {
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headers http.Header
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config MetricsConfig
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log log.Logger
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}
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func newHTTPMetricsClient() *http.Client {
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defaultTransport := http.DefaultTransport.(*http.Transport).Clone() //nolint: forcetypeassert
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defaultTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true} //nolint: gosec
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return &http.Client{
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Timeout: httpTimeout,
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Transport: defaultTransport,
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}
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}
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// Creates a MetricsClient that can be used to retrieve in memory metrics
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// The new MetricsClient retrieved must be cached and reused by the Node Exporter
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// in order to prevent concurrent memory leaks.
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func NewMetricsClient(config *MetricsConfig, logger log.Logger) *MetricsClient {
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if config.HTTPClient == nil {
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config.HTTPClient = newHTTPMetricsClient()
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}
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return &MetricsClient{config: *config, headers: make(http.Header), log: logger}
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}
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func (mc *MetricsClient) GetMetrics() (*MetricsInfo, error) {
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metrics := &MetricsInfo{}
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if _, err := mc.makeGETRequest(mc.config.Address+"/v2/metrics", metrics); err != nil {
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return nil, err
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}
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return metrics, nil
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}
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func (mc *MetricsClient) makeGETRequest(url string, resultsPtr interface{}) (http.Header, error) {
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req, err := http.NewRequestWithContext(context.Background(), "GET", url, nil)
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if err != nil {
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return nil, fmt.Errorf("metric scraping: %w", err)
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}
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resp, err := mc.config.HTTPClient.Do(req)
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if err != nil {
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return nil, fmt.Errorf("metric scraping error: %w", err)
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}
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defer resp.Body.Close()
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if err := json.NewDecoder(resp.Body).Decode(resultsPtr); err != nil {
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return nil, fmt.Errorf("metric scraping failed: %w", err)
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}
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return resp.Header, nil
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}
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