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cloudconfig.go
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cloudconfig.go
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/*
Copyright 2019 The Machine Controller Authors.
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 types
import (
"bytes"
"fmt"
"text/template"
"github.com/Masterminds/sprig/v3"
"github.com/kubermatic/machine-controller/pkg/ini"
)
const (
cloudConfigTpl = `[Global]
user = {{ .Global.User | iniEscape }}
password = {{ .Global.Password | iniEscape }}
port = {{ .Global.VCenterPort | iniEscape }}
insecure-flag = {{ .Global.InsecureFlag }}
working-dir = {{ .Global.WorkingDir | iniEscape }}
datacenter = {{ .Global.Datacenter | iniEscape }}
datastore = {{ .Global.DefaultDatastore | iniEscape }}
server = {{ .Global.VCenterIP | iniEscape }}
[Disk]
scsicontrollertype = {{ .Disk.SCSIControllerType | iniEscape }}
[Workspace]
server = {{ .Workspace.VCenterIP | iniEscape }}
datacenter = {{ .Workspace.Datacenter | iniEscape }}
folder = {{ .Workspace.Folder | iniEscape }}
default-datastore = {{ .Workspace.DefaultDatastore | iniEscape }}
resourcepool-path = {{ .Workspace.ResourcePoolPath | iniEscape }}
{{ range $name, $vc := .VirtualCenter }}
[VirtualCenter {{ $name | iniEscape }}]
user = {{ $vc.User | iniEscape }}
password = {{ $vc.Password | iniEscape }}
port = {{ $vc.VCenterPort }}
datacenters = {{ $vc.Datacenters | iniEscape }}
{{ end }}
`
)
type WorkspaceOpts struct {
VCenterIP string `gcfg:"server"`
Datacenter string `gcfg:"datacenter"`
Folder string `gcfg:"folder"`
DefaultDatastore string `gcfg:"default-datastore"`
ResourcePoolPath string `gcfg:"resourcepool-path"`
}
type DiskOpts struct {
SCSIControllerType string `dcfg:"scsicontrollertype"`
}
type GlobalOpts struct {
User string `gcfg:"user"`
Password string `gcfg:"password"`
InsecureFlag bool `gcfg:"insecure-flag"`
VCenterPort string `gcfg:"port"`
WorkingDir string `gcfg:"working-dir"`
Datacenter string `gcfg:"datacenter"`
DefaultDatastore string `gcfg:"datastore"`
VCenterIP string `gcfg:"server"`
ClusterID string `gcfg:"cluster-id"`
}
type VirtualCenterConfig struct {
User string `gcfg:"user"`
Password string `gcfg:"password"`
VCenterPort string `gcfg:"port"`
Datacenters string `gcfg:"datacenters"`
}
// CloudConfig is used to read and store information from the cloud configuration file
type CloudConfig struct {
Global GlobalOpts
Disk DiskOpts
Workspace WorkspaceOpts
VirtualCenter map[string]*VirtualCenterConfig
}
func CloudConfigToString(c *CloudConfig) (string, error) {
funcMap := sprig.TxtFuncMap()
funcMap["iniEscape"] = ini.Escape
tpl, err := template.New("cloud-config").Funcs(funcMap).Parse(cloudConfigTpl)
if err != nil {
return "", fmt.Errorf("failed to parse the cloud config template: %v", err)
}
buf := &bytes.Buffer{}
if err := tpl.Execute(buf, c); err != nil {
return "", fmt.Errorf("failed to execute cloud config template: %v", err)
}
return buf.String(), nil
}