k-space/logmower-shipper
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fix mongo structs

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This commit is contained in:
rasmus
2022-11-06 23:15:23 +02:00
parent ce3f67754a
commit 8961a4237f
4 changed files with 85 additions and 35 deletions
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6
cmd/line.go
View File

@@ -28,7 +28,7 @@ var (
type ( type (
rawLine struct { rawLine struct {
recordMetadata RecordMetadata
line []byte line []byte
} }
@@ -76,7 +76,7 @@ func (s *submitter) parseContainerLogLines(unparsed <-chan rawLine, parsed chan<
s.l.Error("parsing container log line", zap.Error(err), zap.String("file", raw.File)) s.l.Error("parsing container log line", zap.Error(err), zap.String("file", raw.File))
} }
line.mLog.recordMetadata = raw.recordMetadata line.mLog.RecordMetadata = raw.RecordMetadata
parsed <- line parsed <- line
} }
} }
@@ -126,7 +126,7 @@ func (s *submitter) parseStdChannel(bufferLimitBytes int, lines <-chan singleLin
flush := func(last *mLog) { flush := func(last *mLog) {
parsed <- mLog{ parsed <- mLog{
recordMetadata: last.recordMetadata, RecordMetadata: last.RecordMetadata,
StdErr: last.StdErr, StdErr: last.StdErr,
ContainerTime: firstTime, ContainerTime: firstTime,

88
cmd/mongo_struct.go
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@@ -13,7 +13,7 @@ func initializeIndexes(ctx context.Context, col *mongo.Collection) error {
// (does not create duplicates) // (does not create duplicates)
_, err := ind.CreateOne(mongoTimeoutCtx(ctx), mongo.IndexModel{ _, err := ind.CreateOne(mongoTimeoutCtx(ctx), mongo.IndexModel{
Keys: bson.D{{Key: mongoKeyFileBasename, Value: 1}, {Key: mongoKeyOffset, Value: -1}}, Keys: bson.D{{Key: mLogKeyFileBasename, Value: 1}, {Key: mLogKeyOffset, Value: -1}},
}) })
return err return err
@@ -22,7 +22,7 @@ func initializeIndexes(ctx context.Context, col *mongo.Collection) error {
// when editing, also edit everything in this file! // when editing, also edit everything in this file!
type ( type (
mLog struct { mLog struct {
recordMetadata RecordMetadata
Content any Content any
ContainerTime time.Time ContainerTime time.Time
@@ -31,7 +31,7 @@ type (
// added by toBson() // added by toBson()
ShipTime time.Time ShipTime time.Time
} }
recordMetadata struct { RecordMetadata struct {
HostInfo HostInfo HostInfo HostInfo
File string File string
Offset int64 // byte offset where log entry ends at Offset int64 // byte offset where log entry ends at
@@ -39,28 +39,80 @@ type (
) )
const ( const (
mongoKeyHostInfo = "host_info" // used outside fromBson and toBson
mongoKeyId = "id" mLogKeyHostId = mLogKeyHostInfo + "." + mLogKeyId
mongoKeyHostId = mongoKeyHostInfo + "." + mongoKeyId )
mongoKeyFileBasename = "file"
mongoKeyOffset = "offset" const (
mLogKeyHostInfo = "host_info"
mLogKeyId = "id"
mLogKeyName = "name"
mLogKeyArch = "arch"
mLogKeyFileBasename = "file"
mLogKeyOffset = "offset"
mLogKeyContent = "content"
mLogKeyContainerTime = "container_time"
mLogKeyStderr = "stderr"
mLogKeyShipTime = "ship_time"
) )
// not using marshal, since it is <0.1x performance // not using marshal, since it is <0.1x performance
func (l *mLog) toBson() bson.M { func (l *mLog) toBson() bson.M {
// DO NOT USE QUOTED STRINGS! Move them to const and use variable instead // DO NOT USE QUOTED STRINGS! Move them to const and use variable instead
return bson.M{ return bson.M{
mongoKeyHostInfo: bson.M{ mLogKeyHostInfo: bson.M{
mongoKeyId: l.HostInfo.id, mLogKeyId: l.HostInfo.Id,
"name": l.HostInfo.name, mLogKeyName: l.HostInfo.Name,
"arch": l.HostInfo.arch, mLogKeyArch: l.HostInfo.Arch,
}, },
mongoKeyFileBasename: l.File, mLogKeyFileBasename: l.File,
mongoKeyOffset: l.Offset, mLogKeyOffset: l.Offset,
"content": l.Content, mLogKeyContent: l.Content,
"container_time": l.ContainerTime, mLogKeyContainerTime: l.ContainerTime,
"stderr": l.StdErr, mLogKeyStderr: l.StdErr,
"ship_time": time.Now(), mLogKeyShipTime: time.Now(),
} }
} }
// really, mongo should support tagged structs
func mLogfromBson(b *bson.Raw) mLog {
return mLog{
RecordMetadata: RecordMetadata{
HostInfo: HostInfo{
Id: bsonLookupStringValue(b, mLogKeyHostInfo, mLogKeyId),
Name: bsonLookupStringValue(b, mLogKeyHostInfo, mLogKeyName),
Arch: bsonLookupStringValue(b, mLogKeyHostInfo, mLogKeyArch),
},
File: bsonLookupStringValue(b, mLogKeyFileBasename),
Offset: bsonLookupInt64(b, mLogKeyOffset),
},
Content: bsonLookupStringValue(b, mLogKeyContent),
ContainerTime: bsonLookupTime(b, mLogKeyContainerTime),
StdErr: bsonLookupBoolean(b, mLogKeyStderr),
ShipTime: bsonLookupTime(b, mLogKeyShipTime),
}
}
// default values without ok
func bsonLookupBoolean(b *bson.Raw, key ...string) bool {
v, _ := b.Lookup(key...).BooleanOK()
return v
}
func bsonLookupStringValue(b *bson.Raw, key ...string) string {
v, _ := b.Lookup(key...).StringValueOK()
return v
}
func bsonLookupInt64(b *bson.Raw, key ...string) int64 {
v, _ := b.Lookup(key...).Int64OK()
return v
}
func bsonLookupTime(b *bson.Raw, key ...string) time.Time {
v, _ := b.Lookup(key...).TimeOK()
return v
}

14
cmd/submitter.go
View File

@@ -101,19 +101,17 @@ func (s *submitter) shipFileRoutine(ctx context.Context, name string, sendQueue
} }
// get files with offset // get files with offset
offsetResult, err := mongoWithErr(s.db.FindOne(mongoTimeoutCtx(ctx), offsetResult, _ := mongoWithErr(s.db.FindOne(mongoTimeoutCtx(ctx),
bson.D{{Key: mongoKeyHostId, Value: s.hostInfo.id}, {Key: mongoKeyFileBasename, Value: baseName}}, bson.D{{Key: mLogKeyHostId, Value: s.hostInfo.Id}, {Key: mLogKeyFileBasename, Value: baseName}},
&mongoOpt.FindOneOptions{Sort: bson.D{{Key: mongoKeyOffset, Value: -1}}}, // sort descending (get largest) &mongoOpt.FindOneOptions{Sort: bson.D{{Key: mLogKeyOffset, Value: -1}}}, // sort descending (get largest)
)) ))
offsetResultBytes, err := offsetResult.DecodeBytes()
if err != nil && !errors.Is(err, mongo.ErrNoDocuments) { if err != nil && !errors.Is(err, mongo.ErrNoDocuments) {
return fmt.Errorf("retrieving offset from database: %w", err) return fmt.Errorf("retrieving offset from database: %w", err)
} }
var log mLog log := mLogfromBson(&offsetResultBytes)
if err := offsetResult.Decode(&log); err != nil && !errors.Is(err, mongo.ErrNoDocuments) {
return fmt.Errorf("decoding offset from database: %w", err)
}
fi, err := os.Stat(name) fi, err := os.Stat(name)
if err != nil { if err != nil {
@@ -162,7 +160,7 @@ func (s *submitter) shipFileRoutine(ctx context.Context, name string, sendQueue
} }
sendQueue <- rawLine{ sendQueue <- rawLine{
recordMetadata: recordMetadata{ RecordMetadata: RecordMetadata{
HostInfo: s.hostInfo, HostInfo: s.hostInfo,
File: baseName, File: baseName,

12
cmd/watcher.go
View File

@@ -229,9 +229,9 @@ var App = &cli.App{
} }
type HostInfo struct { type HostInfo struct {
id string Id string
name string Name string
arch string Arch string
} }
func getHostInfo(nodeName string) (h HostInfo, err error) { func getHostInfo(nodeName string) (h HostInfo, err error) {
@@ -241,16 +241,16 @@ func getHostInfo(nodeName string) (h HostInfo, err error) {
err = fmt.Errorf("name: hostname: %w", err) // don't exit early err = fmt.Errorf("name: hostname: %w", err) // don't exit early
} }
} }
h.name = strings.TrimSpace(nodeName) h.Name = strings.TrimSpace(nodeName)
id, errL := os.ReadFile(MachineId) id, errL := os.ReadFile(MachineId)
if errL != nil { if errL != nil {
err = errAppend(err, fmt.Errorf("id: %w", errL)) err = errAppend(err, fmt.Errorf("id: %w", errL))
} }
h.id = strings.TrimSpace(string(id)) h.Id = strings.TrimSpace(string(id))
h.arch = runtime.GOARCH h.Arch = runtime.GOARCH
return h, err return h, err
} }