/
c-admin-status.go
169 lines (158 loc) · 4.44 KB
/
c-admin-status.go
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package site
import (
"database/sql"
"fmt"
"net"
"net/http"
"os"
"os/user"
"runtime"
"strings"
"syscall"
"time"
"github.com/kapmahc/axe"
"github.com/kapmahc/sky/web"
"github.com/spf13/viper"
)
func (p *Plugin) _osStatus() (axe.H, error) {
var mem runtime.MemStats
runtime.ReadMemStats(&mem)
hn, err := os.Hostname()
if err != nil {
return nil, err
}
hu, err := user.Current()
if err != nil {
return nil, err
}
pwd, err := os.Getwd()
if err != nil {
return nil, err
}
var ifo syscall.Sysinfo_t
if err := syscall.Sysinfo(&ifo); err != nil {
return nil, err
}
return axe.H{
"app author": fmt.Sprintf("%s <%s>", web.AuthorName, web.AuthorEmail),
"app licence": web.Copyright,
"app version": fmt.Sprintf("%s(%s) - %s", web.Version, web.BuildTime, viper.GetString("env")),
"app root": pwd,
"who-am-i": fmt.Sprintf("%s@%s", hu.Username, hn),
"go version": runtime.Version(),
"go root": runtime.GOROOT(),
"go runtime": runtime.NumGoroutine(),
"go last gc": time.Unix(0, int64(mem.LastGC)).Format(time.ANSIC),
"os cpu": runtime.NumCPU(),
"os ram(free/total)": fmt.Sprintf("%dM/%dM", ifo.Freeram/1024/1024, ifo.Totalram/1024/1024),
"os swap(free/total)": fmt.Sprintf("%dM/%dM", ifo.Freeswap/1024/1024, ifo.Totalswap/1024/1024),
"go memory(alloc/sys)": fmt.Sprintf("%dM/%dM", mem.Alloc/1024/1024, mem.Sys/1024/1024),
"os time": time.Now().Format(time.ANSIC),
"os arch": fmt.Sprintf("%s(%s)", runtime.GOOS, runtime.GOARCH),
"os uptime": (time.Duration(ifo.Uptime) * time.Second).String(),
"os loads": ifo.Loads,
"os procs": ifo.Procs,
}, nil
}
func (p *Plugin) _networkStatus() (axe.H, error) {
sts := axe.H{}
ifs, err := net.Interfaces()
if err != nil {
return nil, err
}
for _, v := range ifs {
ips := []string{v.HardwareAddr.String()}
adrs, err := v.Addrs()
if err != nil {
return nil, err
}
for _, adr := range adrs {
ips = append(ips, adr.String())
}
sts[v.Name] = ips
}
return sts, nil
}
func (p *Plugin) _dbStatus() (axe.H, error) {
val := axe.H{
"drivers": strings.Join(sql.Drivers(), ", "),
}
switch viper.GetString("database.driver") {
case postgresqlDriver:
row := p.Db.Raw("select version()").Row()
var version string
row.Scan(&version)
val["version"] = version
// http://blog.javachen.com/2014/04/07/some-metrics-in-postgresql.html
row = p.Db.Raw("select pg_size_pretty(pg_database_size('postgres'))").Row()
var size string
row.Scan(&size)
val["size"] = size
if rows, err := p.Db.
Raw("select pid,current_timestamp - least(query_start,xact_start) AS runtime,substr(query,1,25) AS current_query from pg_stat_activity where not pid=pg_backend_pid()").
Rows(); err == nil {
defer rows.Close()
for rows.Next() {
var pid int
var ts time.Time
var qry string
row.Scan(&pid, &ts, &qry)
val[fmt.Sprintf("pid-%d", pid)] = fmt.Sprintf("%s (%v)", ts.Format("15:04:05.999999"), qry)
}
} else {
return nil, err
}
val["url"] = fmt.Sprintf(
"%s://%s@%s:%d/%s",
viper.GetString("database.driver"),
viper.GetString("database.args.user"),
viper.GetString("database.args.host"),
viper.GetInt("database.args.port"),
viper.GetString("database.args.dbname"),
)
}
return val, nil
}
func (p *Plugin) _routes() []axe.H {
rt := axe.NewRouter()
web.Walk(func(en web.Plugin) error {
en.Mount(rt)
return nil
})
var items []axe.H
rt.Walk(func(mtd string, pth string, _ ...axe.HandlerFunc) error {
items = append(items, axe.H{"method": mtd, "path": pth})
return nil
})
return items
}
func (p *Plugin) _cacheStatus() ([]string, error) {
str, err := p.Cache.Store.Status()
if err != nil {
return nil, err
}
return strings.Split(str, "\n"), nil
}
func (p *Plugin) getAdminSiteStatus(c *axe.Context) {
data := axe.H{}
var err error
if data["os"], err = p._osStatus(); err != nil {
c.Abort(http.StatusInternalServerError, err)
return
}
if data["network"], err = p._networkStatus(); err != nil {
c.Abort(http.StatusInternalServerError, err)
return
}
data["jobs"] = p.Server.Status()
data["routes"] = p._routes()
if data["cache"], err = p._cacheStatus(); err != nil {
c.Abort(http.StatusInternalServerError, err)
return
}
if data["database"], err = p._dbStatus(); err != nil {
c.Abort(http.StatusInternalServerError, err)
return
}
c.JSON(http.StatusOK, data)
}