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hetzner.go
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hetzner.go
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/*
Copyright 2020 The Kubermatic Kubernetes Platform contributors.
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 provider
import (
"context"
"fmt"
"net/http"
"regexp"
"github.com/go-kit/kit/endpoint"
"github.com/hetznercloud/hcloud-go/hcloud"
apiv1 "github.com/kubermatic/kubermatic/api/pkg/api/v1"
"github.com/kubermatic/kubermatic/api/pkg/handler/middleware"
"github.com/kubermatic/kubermatic/api/pkg/handler/v1/cluster"
"github.com/kubermatic/kubermatic/api/pkg/handler/v1/common"
"github.com/kubermatic/kubermatic/api/pkg/provider"
"github.com/kubermatic/kubermatic/api/pkg/provider/cloud/hetzner"
kubernetesprovider "github.com/kubermatic/kubermatic/api/pkg/provider/kubernetes"
"github.com/kubermatic/kubermatic/api/pkg/util/errors"
)
var reStandardSize = regexp.MustCompile("(^cx)")
var reDedicatedSize = regexp.MustCompile("(^ccx)")
func HetznerSizeWithClusterCredentialsEndpoint(projectProvider provider.ProjectProvider, privilegedProjectProvider provider.PrivilegedProjectProvider, userInfoGetter provider.UserInfoGetter) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (interface{}, error) {
req := request.(HetznerSizesNoCredentialsReq)
clusterProvider := ctx.Value(middleware.ClusterProviderContextKey).(provider.ClusterProvider)
cluster, err := cluster.GetCluster(ctx, projectProvider, privilegedProjectProvider, userInfoGetter, req.ProjectID, req.ClusterID, &provider.ClusterGetOptions{CheckInitStatus: true})
if err != nil {
return nil, err
}
if cluster.Spec.Cloud.Hetzner == nil {
return nil, errors.NewNotFound("cloud spec for ", req.ClusterID)
}
assertedClusterProvider, ok := clusterProvider.(*kubernetesprovider.ClusterProvider)
if !ok {
return nil, errors.New(http.StatusInternalServerError, "failed to assert clusterProvider")
}
secretKeySelector := provider.SecretKeySelectorValueFuncFactory(ctx, assertedClusterProvider.GetSeedClusterAdminRuntimeClient())
hetznerToken, err := hetzner.GetCredentialsForCluster(cluster.Spec.Cloud, secretKeySelector)
if err != nil {
return nil, err
}
return hetznerSize(ctx, hetznerToken)
}
}
func HetznerSizeEndpoint(presetsProvider provider.PresetProvider, userInfoGetter provider.UserInfoGetter) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (interface{}, error) {
req := request.(HetznerSizesReq)
token := req.HetznerToken
userInfo, err := userInfoGetter(ctx, "")
if err != nil {
return nil, common.KubernetesErrorToHTTPError(err)
}
if len(req.Credential) > 0 {
preset, err := presetsProvider.GetPreset(userInfo, req.Credential)
if err != nil {
return nil, errors.New(http.StatusInternalServerError, fmt.Sprintf("can not get preset %s for user %s", req.Credential, userInfo.Email))
}
if credentials := preset.Spec.Hetzner; credentials != nil {
token = credentials.Token
}
}
return hetznerSize(ctx, token)
}
}
func hetznerSize(ctx context.Context, token string) (apiv1.HetznerSizeList, error) {
client := hcloud.NewClient(hcloud.WithToken(token))
listOptions := hcloud.ServerTypeListOpts{
ListOpts: hcloud.ListOpts{
Page: 1,
PerPage: 1000,
},
}
sizes, _, err := client.ServerType.List(ctx, listOptions)
if err != nil {
return apiv1.HetznerSizeList{}, fmt.Errorf("failed to list sizes: %v", err)
}
sizeList := apiv1.HetznerSizeList{}
for _, size := range sizes {
s := apiv1.HetznerSize{
ID: size.ID,
Name: size.Name,
Description: size.Description,
Cores: size.Cores,
Memory: size.Memory,
Disk: size.Disk,
}
switch {
case reStandardSize.MatchString(size.Name):
sizeList.Standard = append(sizeList.Standard, s)
case reDedicatedSize.MatchString(size.Name):
sizeList.Dedicated = append(sizeList.Dedicated, s)
}
}
return sizeList, nil
}
// HetznerSizesNoCredentialsReq represent a request for hetzner sizes EP
// swagger:parameters listHetznerSizesNoCredentials
type HetznerSizesNoCredentialsReq struct {
common.GetClusterReq
}
func DecodeHetznerSizesNoCredentialsReq(c context.Context, r *http.Request) (interface{}, error) {
var req HetznerSizesNoCredentialsReq
cr, err := common.DecodeGetClusterReq(c, r)
if err != nil {
return nil, err
}
req.GetClusterReq = cr.(common.GetClusterReq)
return req, nil
}
// HetznerSizesReq represent a request for hetzner sizes
// swagger:parameters listHetznerSizes
type HetznerSizesReq struct {
// in: header
// HetznerToken Hetzner token
HetznerToken string
// in: header
// Credential predefined Kubermatic credential name from the presets
Credential string
}
func DecodeHetznerSizesReq(c context.Context, r *http.Request) (interface{}, error) {
var req HetznerSizesReq
req.HetznerToken = r.Header.Get("HetznerToken")
req.Credential = r.Header.Get("Credential")
return req, nil
}