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Merge pull request #1 from snapp-incubator/add/projects-metric
feat: Add OpenStack Integration for Project Metrics
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| package exporters | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "context" | ||
|
|
||
| "github.com/gophercloud/gophercloud/v2" | ||
| "github.com/gophercloud/gophercloud/v2/openstack" | ||
| "github.com/gophercloud/gophercloud/v2/openstack/config" | ||
| "github.com/gophercloud/gophercloud/v2/openstack/config/clouds" | ||
| "github.com/gophercloud/gophercloud/v2/openstack/identity/v3/projects" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
|
|
||
| type Metric struct { | ||
| Name string | ||
| Labels []string | ||
| Metric *prometheus.Desc | ||
| } | ||
|
|
||
| type KeyStoneCollector struct { | ||
| metrics map[string]Metric | ||
| } | ||
|
|
||
| func authenticate() (*gophercloud.ServiceClient, error) { | ||
| ctx := context.Background() | ||
| authOptions, endpointOptions, tlsConfig, err := clouds.Parse() | ||
| if err != nil { | ||
| fmt.Printf("could not parse cloud.yaml: %s\n", err) | ||
| return nil, err | ||
| } | ||
|
|
||
| providerClient, err := config.NewProviderClient(ctx, authOptions, config.WithTLSConfig(tlsConfig)) | ||
| if err != nil { | ||
| fmt.Printf("could not create provider client: %s\n", err) | ||
| return nil, err | ||
| } | ||
| identityClient, err := openstack.NewIdentityV3(providerClient, endpointOptions) | ||
| if err != nil { | ||
| fmt.Printf("could not create identity client: %s\n", err) | ||
| return nil, err | ||
| } | ||
| return identityClient, nil | ||
| } | ||
|
|
||
| func NewKeystoneCollector() *KeyStoneCollector { | ||
| projectMetrics := []Metric{ | ||
| {Name: "projects"}, | ||
| {Name: "project_info", Labels: []string{ | ||
| "is_domain", "description", "domain_id", "enabled", | ||
| "id", "name", "parent_id", "tags", "team", | ||
| }}, | ||
| } | ||
|
|
||
| metrics := make(map[string]Metric) | ||
| for _, m := range projectMetrics { | ||
| metrics[m.Name] = Metric{ | ||
| Name: m.Name, | ||
| Labels: m.Labels, | ||
| Metric: prometheus.NewDesc( | ||
| prometheus.BuildFQName("openstack", "keystone", m.Name), | ||
| fmt.Sprintf("Description of %s", m.Name), | ||
| m.Labels, | ||
| nil, | ||
| ), | ||
| } | ||
| } | ||
|
|
||
| return &KeyStoneCollector{ | ||
| metrics: metrics, | ||
| } | ||
| } | ||
|
|
||
| func (kc *KeyStoneCollector) Describe(ch chan<- *prometheus.Desc) { | ||
| for _, m := range kc.metrics { | ||
| ch <- m.Metric | ||
| } | ||
| } | ||
|
|
||
| func (kc *KeyStoneCollector) Collect(ch chan<- prometheus.Metric) { | ||
| client, err := authenticate() | ||
| if err != nil { | ||
| fmt.Printf("Authentication error: %v\n", err) | ||
| return | ||
| } | ||
|
|
||
| ctx := context.Background() | ||
| allPages, err := projects.List(client, projects.ListOpts{}).AllPages(ctx) | ||
| if err != nil { | ||
| fmt.Printf("Error listing projects: %v\n", err) | ||
| return | ||
| } | ||
|
|
||
| allProjects, err := projects.ExtractProjects(allPages) | ||
| if err != nil { | ||
| fmt.Printf("Error extracting projects: %v\n", err) | ||
| return | ||
| } | ||
|
|
||
| ch <- prometheus.MustNewConstMetric( | ||
| kc.metrics["projects"].Metric, | ||
| prometheus.GaugeValue, | ||
| float64(len(allProjects)), | ||
| ) | ||
|
|
||
| for _, p := range allProjects { | ||
| tagString := "" | ||
| if len(p.Tags) > 0 { | ||
| tagString = strings.Join(p.Tags, ",") | ||
| } | ||
| var team string | ||
| if p.Extra["team"] != nil { | ||
| team = p.Extra["team"].(string) | ||
| } else { | ||
| team = "" | ||
| } | ||
|
|
||
| ch <- prometheus.MustNewConstMetric( | ||
| kc.metrics["project_info"].Metric, | ||
| prometheus.GaugeValue, | ||
| 1.0, | ||
| strconv.FormatBool(p.IsDomain), | ||
| p.Description, | ||
| p.DomainID, | ||
| strconv.FormatBool(p.Enabled), | ||
| p.ID, | ||
| p.Name, | ||
| p.ParentID, | ||
| tagString, | ||
| team, | ||
| ) | ||
| } | ||
| } |