/
status.go
127 lines (115 loc) · 3.94 KB
/
status.go
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// Copyright 2014 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package v5 // import "gopkg.in/juju/charmstore.v5/internal/v5"
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"time"
"github.com/juju/utils/debugstatus"
"golang.org/x/net/context"
"gopkg.in/errgo.v1"
"gopkg.in/mgo.v2/bson"
"gopkg.in/juju/charmstore.v5/internal/mongodoc"
)
// GET /debug/status
// https://github.com/juju/charmstore/blob/v4/docs/API.md#get-debugstatus
func (h *ReqHandler) serveDebugStatus(_ http.Header, req *http.Request) (interface{}, error) {
h.Store.SetReconnectTimeout(500 * time.Millisecond)
return debugstatus.Check(
context.TODO(),
debugstatus.ServerStartTime,
debugstatus.Connection(h.Store.DB.Session),
debugstatus.MongoCollections(h.Store.DB),
h.checkElasticSearch,
h.checkEntities,
h.checkBaseEntities,
), nil
}
func (h *ReqHandler) checkElasticSearch(context.Context) (key string, result debugstatus.CheckResult) {
key = "elasticsearch"
result.Name = "Elastic search is running"
if h.Store.ES == nil || h.Store.ES.Database == nil {
result.Value = "Elastic search is not configured"
result.Passed = true
return key, result
}
health, err := h.Store.ES.Health()
if err != nil {
result.Value = "Connection issues to Elastic Search: " + err.Error()
return key, result
}
result.Value = health.String()
result.Passed = health.Status == "green"
return key, result
}
func (h *ReqHandler) checkEntities(context.Context) (key string, result debugstatus.CheckResult) {
result.Name = "Entities in charm store"
charms, err := h.Store.DB.Entities().Find(bson.D{{"series", bson.D{{"$ne", "bundle"}}}}).Count()
if err != nil {
result.Value = "Cannot count charms for consistency check: " + err.Error()
return "entities", result
}
bundles, err := h.Store.DB.Entities().Find(bson.D{{"series", "bundle"}}).Count()
if err != nil {
result.Value = "Cannot count bundles for consistency check: " + err.Error()
return "entities", result
}
promulgated, err := h.Store.DB.Entities().Find(bson.D{{"promulgated-url", bson.D{{"$exists", true}}}}).Count()
if err != nil {
result.Value = "Cannot count promulgated for consistency check: " + err.Error()
return "entities", result
}
result.Value = fmt.Sprintf("%d charms; %d bundles; %d promulgated", charms, bundles, promulgated)
result.Passed = true
return "entities", result
}
func (h *ReqHandler) checkBaseEntities(context.Context) (key string, result debugstatus.CheckResult) {
resultKey := "base_entities"
result.Name = "Base entities in charm store"
// Retrieve the number of base entities.
baseNum, err := h.Store.DB.BaseEntities().Count()
if err != nil {
result.Value = "Cannot count base entities: " + err.Error()
return resultKey, result
}
// Retrieve the number of entities.
num, err := h.Store.DB.Entities().Count()
if err != nil {
result.Value = "Cannot count entities for consistency check: " + err.Error()
return resultKey, result
}
result.Value = fmt.Sprintf("count: %d", baseNum)
result.Passed = num >= baseNum
return resultKey, result
}
// findTimesInLogs goes through logs in reverse order finding when the start and
// end messages were last added.
func (h *ReqHandler) findTimesInLogs(logType mongodoc.LogType, startPrefix, endPrefix string) (start, end time.Time, err error) {
var log mongodoc.Log
iter := h.Store.DB.Logs().Find(bson.D{
{"level", mongodoc.InfoLevel},
{"type", logType},
}).Sort("-time", "-id").Iter()
for iter.Next(&log) {
var msg string
if err := json.Unmarshal(log.Data, &msg); err != nil {
// an error here probably means the log isn't in the form we are looking for.
continue
}
if start.IsZero() && strings.HasPrefix(msg, startPrefix) {
start = log.Time
}
if end.IsZero() && strings.HasPrefix(msg, endPrefix) {
end = log.Time
}
if !start.IsZero() && !end.IsZero() {
break
}
}
if err = iter.Close(); err != nil {
return time.Time{}, time.Time{}, errgo.Notef(err, "Cannot query logs")
}
return
}