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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package organization | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
| clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| const ( | ||
| organizationLabel string = "giantswarm.io/organization" | ||
| ) | ||
|
|
||
| type OrganizationRepository interface { | ||
| Read(ctx context.Context, cluster *clusterv1.Cluster) (string, error) | ||
| } | ||
|
|
||
| type NamespaceOrganizationRepository struct { | ||
| client.Client | ||
| } | ||
|
|
||
| func NewNamespaceRepository(client client.Client) OrganizationRepository { | ||
| return NamespaceOrganizationRepository{client} | ||
| } | ||
|
|
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| func (r NamespaceOrganizationRepository) Read(ctx context.Context, cluster *clusterv1.Cluster) (string, error) { | ||
| namespace := &corev1.Namespace{} | ||
| err := r.Client.Get(ctx, client.ObjectKey{Name: cluster.GetNamespace()}, namespace) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| if organization, ok := namespace.Labels[organizationLabel]; ok { | ||
| return organization, nil | ||
| } | ||
| return "", errors.New("cluster namespace missing organization label") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| package querier | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "github.com/prometheus/client_golang/api" | ||
| v1 "github.com/prometheus/client_golang/api/prometheus/v1" | ||
| "github.com/prometheus/common/model" | ||
| ) | ||
|
|
||
| // headerAdder is an http.RoundTripper that adds additional headers to the request | ||
| type headerAdder struct { | ||
| headers map[string][]string | ||
|
|
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| rt http.RoundTripper | ||
| } | ||
|
|
||
| func (h *headerAdder) RoundTrip(req *http.Request) (*http.Response, error) { | ||
| for k, vv := range h.headers { | ||
| for _, v := range vv { | ||
| req.Header.Add(k, v) | ||
| } | ||
| } | ||
| return h.rt.RoundTrip(req) | ||
| } | ||
|
|
||
| // QueryTSDBHeadSeries performs an instant query against Mimir. | ||
| func QueryTSDBHeadSeries(clusterName string) (float64, error) { | ||
| headerAdder := &headerAdder{ | ||
| headers: map[string][]string{ | ||
| "X-Org-Id": {"anonynous"}, | ||
| }, | ||
| rt: http.DefaultTransport, | ||
| } | ||
| config := api.Config{ | ||
| Address: "http://mimir-gateway.mimir.svc/prometheus", | ||
| RoundTripper: headerAdder, | ||
| } | ||
|
|
||
| // Create new client. | ||
| c, err := api.NewClient(config) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
|
|
||
| // Run query against client. | ||
| api := v1.NewAPI(c) | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute) | ||
| val, _, err := api.Query(ctx, fmt.Sprintf("max_over_time(count({cluster_id=\"%s\"})[6h])", clusterName), time.Now()) | ||
| cancel() | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
|
|
||
| switch val.Type() { | ||
| case model.ValVector: | ||
| vector := val.(model.Vector) | ||
| return float64(vector[0].Value), nil | ||
| default: | ||
| return 0, errors.New("failed to get current number of time series") | ||
| } | ||
| } |
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