Usage: docker logs [OPTIONS] CONTAINER Fetch the logs of a container -f, --follow=false Follow log output --help=false Print usage --since="" Show logs since timestamp -t, --timestamps=false Show timestamps --tail="all" Number of lines to show from the end of the logs
Note: this command is available only for containers with
json-file
andjournald
logging drivers.
The docker logs
command batch-retrieves logs present at the time of execution.
The docker logs --follow
command will continue streaming the new output from the container'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 logs --timestamp
commands will add an RFC3339Nano timestamp , for example 2014-09-16T06:17:46.000000000Z
, to each log entry. To ensure that the timestamps for are aligned the nano-second part of the timestamp will be padded with zero when necessary.
The --since
option shows only the container 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
). Docker computes the date relative to the client machine’s time. You can combine the --since
option with either or both of the --follow
or --tail
options.