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removing data sources from grafana via API (#6)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| package grafanadatasource | ||
|
|
||
| import ( | ||
| "crypto/tls" | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "net/url" | ||
| "time" | ||
| ) | ||
|
|
||
| const ( | ||
| DeleteDataSourceByNameUrl = "%v/api/datasources/name/%v" | ||
| ) | ||
|
|
||
| type DataSourceDeleteResponse struct { | ||
| Message string `json:"message"` | ||
| ID int `json:"id"` | ||
| } | ||
|
|
||
| type GrafanaClient interface { | ||
| DeleteDataSourceByName(dsName string) (DataSourceDeleteResponse, error) | ||
| } | ||
|
|
||
| type GrafanaClientImpl struct { | ||
| url string | ||
| user string | ||
| password string | ||
| client *http.Client | ||
| } | ||
|
|
||
| func setHeaders(req *http.Request) { | ||
| req.Header.Set("Accept", "application/json") | ||
| req.Header.Set("Content-Type", "application/json") | ||
| req.Header.Set("User-Agent", "grafana-operator") | ||
| } | ||
|
|
||
| func NewGrafanaClient(url, user, password string, timeoutSeconds time.Duration) GrafanaClient { | ||
| transport := http.Transport{ | ||
| TLSClientConfig: &tls.Config{ | ||
| InsecureSkipVerify: true, | ||
| }, | ||
| } | ||
|
|
||
| client := &http.Client{ | ||
| Transport: &transport, | ||
| Timeout: time.Second * timeoutSeconds, | ||
| } | ||
|
|
||
| return &GrafanaClientImpl{ | ||
| url: url, | ||
| user: user, | ||
| password: password, | ||
| client: client, | ||
| } | ||
| } | ||
|
|
||
| // Delete a datasource given by a Name | ||
| func (r *GrafanaClientImpl) DeleteDataSourceByName(dsName string) (DataSourceDeleteResponse, error) { | ||
| rawUrl := fmt.Sprintf(DeleteDataSourceByNameUrl, r.url, dsName) | ||
| response := DataSourceDeleteResponse{} | ||
|
|
||
| parsed, err := url.Parse(rawUrl) | ||
| if err != nil { | ||
| return response, err | ||
| } | ||
|
|
||
| parsed.User = url.UserPassword(r.user, r.password) | ||
| req, err := http.NewRequest("DELETE", parsed.String(), nil) | ||
| if err != nil { | ||
| return response, err | ||
| } | ||
|
|
||
| setHeaders(req) | ||
|
|
||
| resp, err := r.client.Do(req) | ||
| if err != nil { | ||
| return response, err | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| // Skip 404 not found because data source can be deleted via UI | ||
| if resp.StatusCode != 200 && resp.StatusCode != 404 { | ||
| return response, errors.New(fmt.Sprintf( | ||
| "error deleting datasource, expected status 200 or 404 but got %v", | ||
| resp.StatusCode)) | ||
| } | ||
|
|
||
| data, err := ioutil.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return response, err | ||
| } | ||
|
|
||
| err = json.Unmarshal(data, &response) | ||
|
|
||
| return response, err | ||
| } |