src: Add DMA localagent

[barometer.git] / src / dma / cmd / infofetch / daemon.go

diff --git a/src/dma/cmd/infofetch/daemon.go b/src/dma/cmd/infofetch/daemon.go
new file mode 100644 (file)
index 0000000..d4ff94f
--- /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()
+}