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exists.go
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/
exists.go
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package resourcegroups
import (
"fmt"
"net/http"
"net/url"
"github.com/virtual-kubelet/virtual-kubelet/providers/azure/client/api"
)
// ResourceGroupExists checks if an Azure resource group exists.
// From: https://docs.microsoft.com/en-us/rest/api/resources/resourcegroups/checkexistence
func (c *Client) ResourceGroupExists(resourceGroup string) (bool, error) {
urlParams := url.Values{
"api-version": []string{apiVersion},
}
// Create the url.
uri := api.ResolveRelative(BaseURI, resourceGroupURLPath)
uri += "?" + url.Values(urlParams).Encode()
// Create the request.
req, err := http.NewRequest("HEAD", uri, nil)
if err != nil {
return false, fmt.Errorf("Creating resource group exists uri request failed: %v", err)
}
// Add the parameters to the url.
if err := api.ExpandURL(req.URL, map[string]string{
"subscriptionId": c.auth.SubscriptionID,
"resourceGroupName": resourceGroup,
}); err != nil {
return false, fmt.Errorf("Expanding URL with parameters failed: %v", err)
}
// Send the request.
resp, err := c.hc.Do(req)
if err != nil {
return false, fmt.Errorf("Sending resource group exists request failed: %v", err)
}
defer resp.Body.Close()
// A 404 response means it does not exit.
if resp.StatusCode == http.StatusNotFound {
return false, nil
}
// 204 (NoContent) and 404 are successful responses.
if err := api.CheckResponse(resp); err != nil {
return false, err
}
// A 204 status means it exists.
if resp.StatusCode == http.StatusNoContent {
return true, nil
}
// A 404 status means it does not exist.
return false, nil
}