Files
zot/pkg/extensions/monitoring/minimal_client.go
T
Luca Muscariello 2402296e9a fix: migrate to Go module v2 for proper semantic versioning (#3462)
* fix: migrate to Go module v2 for proper semantic versioning

This change updates the module path from 'zotregistry.dev/zot' to
'zotregistry.dev/zot/v2' to comply with Go's semantic versioning rules.

According to Go's module versioning requirements, major version v2+
must include the major version in the module path. The current
module path 'zotregistry.dev/zot' only supports v0.x.x and v1.x.x
versions, making existing v2.x.x tags (like v2.1.8) unusable.

Changes:
- Updated go.mod module path to zotregistry.dev/zot/v2
- Updated all internal import paths across 280+ Go source files
- Updated configuration files (golangcilint.yaml, gqlgen.yml)
- Updated README.md Go reference badge

This fix enables proper use of existing v2.x.x Git tags and allows
external packages to import zot v2+ versions without compatibility
errors.

Resolves: Go module import compatibility for v2+ versions
Fixes: #3071
Signed-off-by: Luca Muscariello <muscariello@ieee.org>

* fix: regenerate GraphQL files with updated v2 import paths

The gqlgen tool needs to regenerate the GraphQL schema files after
the module path change to use the new v2 imports.

Signed-off-by: Luca Muscariello <muscariello@ieee.org>

---------

Signed-off-by: Luca Muscariello <muscariello@ieee.org>
2025-10-16 22:43:47 -07:00

89 lines
2.2 KiB
Go

//go:build !metrics
// +build !metrics
package monitoring
import (
"context"
"crypto/tls"
"encoding/json"
"fmt"
"net/http"
"time"
"zotregistry.dev/zot/v2/pkg/log"
)
const (
httpTimeout = 1 * time.Minute
)
// MetricsConfig is used to configure the creation of a Node Exporter http client
// that will connect to a particular zot instance.
type MetricsConfig struct {
// Address of the zot http server
Address string
// Transport to use for the http client.
Transport *http.Transport
// HTTPClient is the client to use.
HTTPClient *http.Client
}
type MetricsClient struct {
headers http.Header
config MetricsConfig
log log.Logger
}
func newHTTPMetricsClient() *http.Client {
defaultTransport := http.DefaultTransport.(*http.Transport).Clone() //nolint: forcetypeassert
defaultTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true} //nolint: gosec
return &http.Client{
Timeout: httpTimeout,
Transport: defaultTransport,
}
}
// Creates a MetricsClient that can be used to retrieve in memory metrics
// The new MetricsClient retrieved must be cached and reused by the Node Exporter
// in order to prevent concurrent memory leaks.
func NewMetricsClient(config *MetricsConfig, logger log.Logger) *MetricsClient {
if config.HTTPClient == nil {
config.HTTPClient = newHTTPMetricsClient()
}
return &MetricsClient{config: *config, headers: make(http.Header), log: logger}
}
func (mc *MetricsClient) GetMetrics() (*MetricsInfo, error) {
metrics := &MetricsInfo{}
if _, err := mc.makeGETRequest(mc.config.Address+"/metrics", metrics); err != nil {
return nil, err
}
return metrics, nil
}
func (mc *MetricsClient) makeGETRequest(url string, resultsPtr interface{}) (http.Header, error) {
req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, url, nil)
if err != nil {
return nil, fmt.Errorf("metric scraping failed: %w", err)
}
resp, err := mc.config.HTTPClient.Do(req)
if err != nil {
return nil, fmt.Errorf("metric scraping failed: %w", err)
}
defer resp.Body.Close()
if err := json.NewDecoder(resp.Body).Decode(resultsPtr); err != nil {
return nil, fmt.Errorf("metric scraping failed: %w", err)
}
return resp.Header, nil
}