src: Add DMA localagent

Change-Id: Ibcee814fbc9a904448eeb368a1a26bbb69cf54aa
Signed-off-by: Toshiaki Takahashi <takahashi.tsc@ncos.nec.co.jp>

1 files changed, 103 insertions, 0 deletions

diff --git a/src/dma/cmd/infofetch/daemon.go b/src/dma/cmd/infofetch/daemon.go
new file mode 100644
index 00000000..d4ff94f5
--- /dev/null
+++ b/src/dma/cmd/infofetch/daemon.go
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2018 NEC Corporation
+ *
+ *   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 main
+
+import (
+	"context"
+	"github.com/BurntSushi/toml"
+	"github.com/distributed-monitoring/agent/pkg/common"
+	"github.com/go-redis/redis"
+	libvirt "github.com/libvirt/libvirt-go"
+	"log"
+	"sync"
+)
+
+var infoPool common.RedisPool
+
+// Config is ...
+type Config struct {
+	Common    CommonConfig
+	InfoFetch InfoFetchConfig
+}
+
+// CommonConfig is ...
+type CommonConfig struct {
+	RedisHost     string `toml:"redis_host"`
+	RedisPort     string `toml:"redis_port"`
+	RedisPassword string `toml:"redis_password"`
+	RedisDB       int    `toml:"redis_db"`
+}
+
+// InfoFetchConfig is ...
+type InfoFetchConfig struct {
+	OSUsername          string `toml:"os_username"`
+	OSUserDomainName    string `toml:"os_user_domain_name"`
+	OSProjectDomainName string `toml:"os_project_domain_name"`
+	OSProjectName       string `toml:"os_project_name"`
+	OSPassword          string `toml:"os_password"`
+	OSAuthURL           string `toml:"os_auth_url"`
+}
+
+func main() {
+
+	var config Config
+	_, err := toml.DecodeFile("/etc/barometer-dma/config.toml", &config)
+	if err != nil {
+		log.Println("Read error of config file")
+	}
+
+	var waitgroup sync.WaitGroup
+	libvirt.EventRegisterDefaultImpl()
+
+	redisClient := redis.NewClient(&redis.Options{
+		Addr:     config.Common.RedisHost + ":" + config.Common.RedisPort,
+		Password: config.Common.RedisPassword,
+		DB:       config.Common.RedisDB,
+	})
+	infoPool = common.RedisPool{Client: redisClient}
+	// Initialize redis db...
+	infoPool.DelAll()
+
+	conn, err := libvirt.NewConnect("qemu:///system")
+	if err != nil {
+		log.Fatalln("libvirt connect error")
+	}
+	defer conn.Close()
+
+	vmIfInfoChan := make(chan string)
+	{
+		ctx := context.Background()
+		waitgroup.Add(1)
+		go func() {
+			RunNeutronInfoFetch(ctx, &config, vmIfInfoChan)
+			waitgroup.Done()
+		}()
+	}
+
+	//Get active VM info
+	GetActiveDomain(conn, vmIfInfoChan)
+	{
+		ctx := context.Background()
+		waitgroup.Add(1)
+		go func() {
+			RunVirshEventLoop(ctx, conn, vmIfInfoChan)
+			waitgroup.Done()
+		}()
+	}
+
+	waitgroup.Wait()
+}