3.8 KiB
| title | description | keywords |
|---|---|---|
| service logs | The service logs command description and usage | service, task, logs |
service logs
Usage: docker service logs [OPTIONS] SERVICE|TASK
Fetch the logs of a service or task
Options:
-f, --follow Follow log output
--help Print usage
--no-resolve Do not map IDs to Names in output
--no-task-ids Do not include task IDs in output
--no-trunc Do not truncate output
--since string Show logs since timestamp
--tail string Number of lines to show from the end of the logs (default "all")
-t, --timestamps Show timestamps
Description
The docker service logs command batch-retrieves logs present at the time of execution.
Note: This is a cluster management command, and must be executed on a swarm manager node. To learn about managers and workers, refer to the Swarm mode section in the documentation.
The docker service logs command can be used with either the name or ID of a
service, or with the ID of a task. If a service is passed, it will display logs
for all of the containers in that service. If a task is passed, it will only
display logs from that particular task.
Note: This command is only functional for services that are started with the
json-fileorjournaldlogging driver.
For more information about selecting and configuring logging drivers, refer to Configure logging drivers.
The docker service logs --follow command will continue streaming the new output from
the service's STDOUT and STDERR.
Passing a negative number or a non-integer to --tail is invalid and the
value is set to all in that case.
The docker service logs --timestamps command will add an RFC3339Nano timestamp
, for example 2014-09-16T06:17:46.000000000Z, to each
log entry. To ensure that the timestamps are aligned the
nano-second part of the timestamp will be padded with zero when necessary.
The docker service logs --details command will add on extra attributes, such as
environment variables and labels, provided to --log-opt when creating the
service.
The --since option shows only the service logs generated after
a given date. You can specify the date as an RFC 3339 date, a UNIX
timestamp, or a Go duration string (e.g. 1m30s, 3h). Besides RFC3339 date
format you may also use RFC3339Nano, 2006-01-02T15:04:05,
2006-01-02T15:04:05.999999999, 2006-01-02Z07:00, and 2006-01-02. The local
timezone on the client will be used if you do not provide either a Z or a
+-00:00 timezone offset at the end of the timestamp. When providing Unix
timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
fraction of a second no more than nine digits long. You can combine the
--since option with either or both of the --follow or --tail options.