move coreos-cloudinit into config/cloudinit

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

config/cloudinit/datasource/vmware/vmware_amd64.go

@@ -0,0 +1,101 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// 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 vmware
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/rancher/os/config/cloudinit/pkg"
+
+	"github.com/sigma/vmw-guestinfo/rpcvmx"
+	"github.com/sigma/vmw-guestinfo/vmcheck"
+	"github.com/sigma/vmw-ovflib"
+)
+
+type ovfWrapper struct {
+	env *ovf.OvfEnvironment
+}
+
+func (ovf ovfWrapper) readConfig(key string) (string, error) {
+	return ovf.env.Properties["guestinfo."+key], nil
+}
+
+func NewDatasource(fileName string) *vmware {
+	// read from provided ovf environment document (typically /media/ovfenv/ovf-env.xml)
+	if fileName != "" {
+		log.Printf("Using OVF environment from %s\n", fileName)
+		ovfEnv, err := ioutil.ReadFile(fileName)
+		if err != nil {
+			ovfEnv = make([]byte, 0)
+		}
+		return &vmware{
+			ovfFileName: fileName,
+			readConfig:  getOvfReadConfig(ovfEnv),
+			urlDownload: urlDownload,
+		}
+	}
+
+	// try to read ovf environment from VMware tools
+	data, err := readConfig("ovfenv")
+	if err == nil && data != "" {
+		log.Printf("Using OVF environment from guestinfo\n")
+		return &vmware{
+			readConfig:  getOvfReadConfig([]byte(data)),
+			urlDownload: urlDownload,
+		}
+	}
+
+	// if everything fails, fallback to directly reading variables from the backdoor
+	log.Printf("Using guestinfo variables\n")
+	return &vmware{
+		readConfig:  readConfig,
+		urlDownload: urlDownload,
+	}
+}
+
+func (v vmware) IsAvailable() bool {
+	if v.ovfFileName != "" {
+		_, err := os.Stat(v.ovfFileName)
+		return !os.IsNotExist(err)
+	}
+	return vmcheck.IsVirtualWorld()
+}
+
+func readConfig(key string) (string, error) {
+	data, err := rpcvmx.NewConfig().String(key, "")
+	if err == nil {
+		log.Printf("Read from %q: %q\n", key, data)
+	} else {
+		log.Printf("Failed to read from %q: %v\n", key, err)
+	}
+	return data, err
+}
+
+func getOvfReadConfig(ovfEnv []byte) readConfigFunction {
+	env := &ovf.OvfEnvironment{}
+	if len(ovfEnv) != 0 {
+		env = ovf.ReadEnvironment(ovfEnv)
+	}
+
+	wrapper := ovfWrapper{env}
+	return wrapper.readConfig
+}
+
+func urlDownload(url string) ([]byte, error) {
+	client := pkg.NewHttpClient()
+	return client.GetRetry(url)
+}