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Merge pull request #27 from banzaicloud/azure-intergration
PKE Azure cloud proivder integration
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| // Copyright © 2019 Banzai Cloud | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package kubeadm | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "os" | ||
| "text/template" | ||
| "time" | ||
|
|
||
| "github.com/banzaicloud/pke/cmd/pke/app/constants" | ||
| "github.com/pkg/errors" | ||
| ) | ||
|
|
||
| const ( | ||
| urlAzureAZ = "http://169.254.169.254/metadata/instance?api-version=2018-10-01" | ||
| ) | ||
|
|
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| func WriteKubeadmAzureConfig(out io.Writer, filename, cloudProvider, tenantID, subnetName, securityGroupName, vnetName, vnetResourceGroup, vmType, loadBalancerSku, routeTableName string) error { | ||
| if cloudProvider == constants.CloudProviderAzure { | ||
| if http.DefaultClient.Timeout < 10*time.Second { | ||
| http.DefaultClient.Timeout = 10 * time.Second | ||
| } | ||
|
|
||
| req, err := http.NewRequest(http.MethodGet, urlAzureAZ, nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| req.Header.Set("Metadata", "true") | ||
|
|
||
| resp, err := http.DefaultClient.Do(req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if resp.StatusCode != http.StatusOK { | ||
| return errors.New(fmt.Sprintf("failed to get azure availability zone. http status code: %d", resp.StatusCode)) | ||
| } | ||
| defer func() { _ = resp.Body.Close() }() | ||
|
|
||
| b, err := ioutil.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to read response body") | ||
| } | ||
|
|
||
| type metadata struct { | ||
| Compute struct { | ||
| AZEnvironment string `json:"azEnvironment"` | ||
| Location string `json:"location"` | ||
| ResourceGroupName string `json:"resourceGroupName"` | ||
| SubscriptionId string `json:"subscriptionId"` | ||
| } `json:"compute"` | ||
| } | ||
| var r metadata | ||
| if err := json.Unmarshal(b, &r); err != nil { | ||
| return errors.Wrap(err, "failed to parse response") | ||
| } | ||
|
|
||
| if vmType == "" { | ||
| vmType = "standard" | ||
| } | ||
| if loadBalancerSku == "" { | ||
| loadBalancerSku = "basic" | ||
| } | ||
|
|
||
| conf := `{ | ||
| "cloud":"{{ .Cloud }}", | ||
| "tenantId": "{{ .TenantId }}", | ||
| "subscriptionId": "{{ .SubscriptionId }}", | ||
| "resourceGroup": "{{ .ResourceGroup }}", | ||
| "location": "{{ .Location }}", | ||
| "subnetName": "{{ .SubnetName }}", | ||
| "securityGroupName": "{{ .SecurityGroupName }}", | ||
| "vnetName": "{{ .VNetName }}", | ||
| "vnetResourceGroup": "{{ .VNetResourceGroup }}", | ||
| "vmType": "{{ .VMType }}", | ||
| "loadBalancerSku": "{{ .LoadBalancerSku }}", | ||
| "routeTableName": "{{ .RouteTableName }}", | ||
| "cloudProviderBackoff": false, | ||
| "useManagedIdentityExtension": true, | ||
| "useInstanceMetadata": true | ||
| }` | ||
|
|
||
| tmpl, err := template.New("azure-config").Parse(conf) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| w, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0640) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer func() { _ = w.Close() }() | ||
|
|
||
| type data struct { | ||
| Cloud string | ||
| TenantId string | ||
| SubscriptionId string | ||
| ResourceGroup string | ||
| Location string | ||
| SubnetName string | ||
| SecurityGroupName string | ||
| VNetName string | ||
| VNetResourceGroup string | ||
| VMType string | ||
| LoadBalancerSku string | ||
| RouteTableName string | ||
| } | ||
|
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| d := data{ | ||
| Cloud: r.Compute.AZEnvironment, | ||
| TenantId: tenantID, | ||
| SubscriptionId: r.Compute.SubscriptionId, | ||
| ResourceGroup: r.Compute.ResourceGroupName, | ||
| Location: r.Compute.Location, | ||
| SubnetName: subnetName, | ||
| SecurityGroupName: securityGroupName, | ||
| VNetName: vnetName, | ||
| VNetResourceGroup: vnetResourceGroup, | ||
| VMType: vmType, | ||
| LoadBalancerSku: loadBalancerSku, | ||
| RouteTableName: routeTableName, | ||
| } | ||
|
|
||
| return tmpl.Execute(w, d) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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