//根据容器名称生产域名
func getDomainName(cName string) string {
cName = common.SubstrAfter(cName, 0)
index := strings.Index(cName, "_")
if index < 0 {
return cName + ".com"
}
lcName := common.SubstrBefore(cName, index)
rcName := common.SubstrAfter(cName, index)
index = strings.Index(rcName, "_")
if index < 0 {
return lcName + "." + rcName + ".com"
}
lrcName := common.SubstrBefore(rcName, index)
return lcName + "." + lrcName + ".com"
}
//监听到容器启动时做的操作
func Start(client *docker.Client, event *docker.APIEvents) {
fmt.Println("Received start event %s for container %s", event.Status, event.ID[:12])
container, err := client.InspectContainer(event.ID[:12])
common.ErrorHandle(err)
ipAddress := container.NetworkSettings.IPAddress
include := common.GetConfig("Section", "include")
if include == "*" || strings.Contains(","+include+",", ","+common.SubstrAfter(container.Name, 0)+",") {
common.AppendFile(common.GetConfig("Section", "hostFile"), ipAddress+" "+getDomainName(container.Name))
restartDns()
}
}
//监听到容器消亡时做的操作
func Die(client *docker.Client, event *docker.APIEvents) {
fmt.Println("Received die event %s for container %s", event.Status, event.ID[:12])
container, err := client.InspectContainer(event.ID[:12])
common.ErrorHandle(err)
include := common.GetConfig("Section", "include")
if include == "*" || strings.Contains(","+include+",", ","+common.SubstrAfter(container.Name, 0)+",") {
strData := common.ReadFile(common.GetConfig("Section", "hostFile"))
arrData := strings.Split(strData, "\n")
strData = ""
for i := 0; i < len(arrData); i++ {
if strings.Index(arrData[i], getDomainName(container.Name)) >= 0 {
continue
}
if strData == "" {
strData = arrData[i]
} else {
strData += "\n" + arrData[i]
}
}
common.SaveFile(common.GetConfig("Section", "hostFile"), strData)
restartDns()
}
}