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moby--moby/daemon/logger/logger_test.go

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Implement plugins for logging drivers Logging plugins use the same HTTP interface as other plugins for basic command operations meanwhile actual logging operations are handled (on Unix) via a fifo. The plugin interface looks like so: ```go type loggingPlugin interface { StartLogging(fifoPath string, loggingContext Context) error StopLogging(fifoPath) ``` This means a plugin must implement `LoggingDriver.StartLogging` and `LoggingDriver.StopLogging` endpoints and be able to consume the passed in fifo. Logs are sent via stream encoder to the fifo encoded with protobuf. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2016-11-14 13:53:53 -05:00
package logger
Avoid using a map for log attributes Having a map per log entry seemed heavier than necessary. These attributes end up being sorted and serialized, so storing them in a map doesn't add anything (there's no random access element). In SwarmKit, they originate as a slice, so there's an unnecessary conversion to a map and back. This also fixes the sort comparator, which used to inefficiently split the string on each comparison. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2017-07-18 22:01:20 -04:00
import (
"github.com/docker/docker/api/types/backend"
)
Implement plugins for logging drivers Logging plugins use the same HTTP interface as other plugins for basic command operations meanwhile actual logging operations are handled (on Unix) via a fifo. The plugin interface looks like so: ```go type loggingPlugin interface { StartLogging(fifoPath string, loggingContext Context) error StopLogging(fifoPath) ``` This means a plugin must implement `LoggingDriver.StartLogging` and `LoggingDriver.StopLogging` endpoints and be able to consume the passed in fifo. Logs are sent via stream encoder to the fifo encoded with protobuf. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2016-11-14 13:53:53 -05:00
func (m *Message) copy() *Message {
msg := &Message{
Source: m.Source,
Partial: m.Partial,
Timestamp: m.Timestamp,
}
if m.Attrs != nil {
Avoid using a map for log attributes Having a map per log entry seemed heavier than necessary. These attributes end up being sorted and serialized, so storing them in a map doesn't add anything (there's no random access element). In SwarmKit, they originate as a slice, so there's an unnecessary conversion to a map and back. This also fixes the sort comparator, which used to inefficiently split the string on each comparison. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2017-07-18 22:01:20 -04:00
msg.Attrs = make([]backend.LogAttr, len(m.Attrs))
copy(msg.Attrs, m.Attrs)
Implement plugins for logging drivers Logging plugins use the same HTTP interface as other plugins for basic command operations meanwhile actual logging operations are handled (on Unix) via a fifo. The plugin interface looks like so: ```go type loggingPlugin interface { StartLogging(fifoPath string, loggingContext Context) error StopLogging(fifoPath) ``` This means a plugin must implement `LoggingDriver.StartLogging` and `LoggingDriver.StopLogging` endpoints and be able to consume the passed in fifo. Logs are sent via stream encoder to the fifo encoded with protobuf. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2016-11-14 13:53:53 -05:00
}
msg.Line = append(make([]byte, 0, len(m.Line)), m.Line...)
return msg
}
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