87 lines
3.6 KiB
Markdown
87 lines
3.6 KiB
Markdown
---
|
|
title: "service logs"
|
|
description: "The service logs command description and usage"
|
|
keywords: "service, task, logs"
|
|
---
|
|
|
|
<!-- This file is maintained within the docker/cli GitHub
|
|
repository at https://github.com/docker/cli/. Make all
|
|
pull requests against that repo. If you see this file in
|
|
another repository, consider it read-only there, as it will
|
|
periodically be overwritten by the definitive file. Pull
|
|
requests which include edits to this file in other repositories
|
|
will be rejected.
|
|
-->
|
|
|
|
# service logs
|
|
|
|
```Markdown
|
|
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.
|
|
|
|
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-file` or `journald` logging driver.
|
|
|
|
For more information about selecting and configuring logging drivers, refer to
|
|
[Configure logging drivers](https://docs.docker.com/engine/admin/logging/overview/).
|
|
|
|
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](https://golang.org/pkg/time/#pkg-constants)
|
|
, 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.
|
|
|
|
## Related commands
|
|
|
|
* [service create](service_create.md)
|
|
* [service inspect](service_inspect.md)
|
|
* [service ls](service_ls.md)
|
|
* [service ps](service_ps.md)
|
|
* [service rm](service_rm.md)
|
|
* [service rollback](service_rollback.md)
|
|
* [service scale](service_scale.md)
|
|
* [service update](service_update.md)
|