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146 lines
3.9 KiB
146 lines
3.9 KiB
// Copyright 2019 HAProxy Technologies
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package handlers
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import (
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"bufio"
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"bytes"
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"fmt"
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"os"
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"runtime"
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"strings"
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"time"
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"github.com/go-openapi/runtime/middleware"
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"github.com/go-openapi/strfmt"
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client_native "github.com/haproxytech/client-native/v6"
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"github.com/haproxytech/client-native/v6/models"
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"github.com/shirou/gopsutil/host"
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"github.com/shirou/gopsutil/mem"
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"golang.org/x/sys/unix"
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"github.com/haproxytech/dataplaneapi/misc"
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"github.com/haproxytech/dataplaneapi/operations/information"
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)
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// GetHaproxyProcessInfoHandlerImpl implementation of the GetHaproxyProcessInfoHandler interface using client-native client
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type GetHaproxyProcessInfoHandlerImpl struct {
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Client client_native.HAProxyClient
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}
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// Handle executing the request and returning a response
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func (h *GetHaproxyProcessInfoHandlerImpl) Handle(params information.GetHaproxyProcessInfoParams, principal interface{}) middleware.Responder {
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runtime, err := h.Client.Runtime()
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if err != nil {
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e := misc.HandleError(err)
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return information.NewGetHaproxyProcessInfoDefault(int(*e.Code)).WithPayload(e)
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}
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info, err := runtime.GetInfo()
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if err != nil {
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code := misc.ErrHTTPInternalServerError
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msg := err.Error()
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e := &models.Error{
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Code: &code,
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Message: &msg,
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}
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return information.NewGetHaproxyProcessInfoDefault(int(misc.ErrHTTPInternalServerError)).WithPayload(e)
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}
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return information.NewGetHaproxyProcessInfoOK().WithPayload(info)
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}
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// GetInfoHandlerImpl implementation of the GetInfoHandler interface
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type GetInfoHandlerImpl struct {
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BuildTime string
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Version string
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SystemInfo bool
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}
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// Handle executing the request and returning a response
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func (h *GetInfoHandlerImpl) Handle(params information.GetInfoParams, principal interface{}) middleware.Responder {
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api := &models.InfoAPI{
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Version: h.Version,
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}
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date, err := time.Parse("2006-01-02T15:04:05Z", h.BuildTime)
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if err == nil {
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api.BuildDate = strfmt.DateTime(date)
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} else {
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fmt.Println(err.Error())
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}
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sys := &models.InfoSystem{}
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if h.SystemInfo {
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hName, err := os.Hostname()
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if err == nil {
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sys.Hostname = hName
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}
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sys.MemInfo = &models.InfoSystemMemInfo{}
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sys.CPUInfo = &models.InfoSystemCPUInfo{}
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mem, err := mem.VirtualMemory()
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if err == nil {
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sys.MemInfo.TotalMemory = int64(mem.Total)
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sys.MemInfo.FreeMemory = int64(mem.Free)
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}
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//nolint:govet
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if uptime, err := host.Uptime(); err == nil {
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uptimeInt64 := int64(uptime)
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sys.Uptime = &uptimeInt64
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}
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sys.CPUInfo.NumCpus = int64(runtime.NumCPU())
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m := &runtime.MemStats{}
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runtime.ReadMemStats(m)
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sys.MemInfo.DataplaneapiMemory = int64(m.Sys)
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sys.CPUInfo.Model = parseCPUModel()
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uName := &unix.Utsname{}
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err = unix.Uname(uName)
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if err == nil {
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sys.OsString = string(bytes.Trim(uName.Sysname[:], "\x00")) + " " + string(bytes.Trim(uName.Release[:], "\x00")) + " " + string(bytes.Trim(uName.Version[:], "\x00"))
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}
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sys.Time = time.Now().Unix()
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}
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return information.NewGetInfoOK().WithPayload(&models.Info{API: api, System: sys})
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}
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func parseCPUModel() string {
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file, err := os.Open("/proc/cpuinfo")
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if err != nil {
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return ""
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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l := scanner.Text()
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if strings.HasPrefix(l, "model name") {
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s := strings.Split(l, ":")
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return strings.TrimSpace(strings.Join(s[1:], ":"))
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}
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}
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if err := scanner.Err(); err != nil {
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return ""
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}
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return ""
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}
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