podman-logs(1) General Commands Manual podman-logs(1)
NAME
podman-logs - Display the logs of one or more containers
SYNOPSIS
podman logs [options] container [container...]
podman container logs [options] container [container...]
DESCRIPTION
The podman logs command batch-retrieves whatever logs are present for
one or more containers at the time of execution. This does not guaran-
tee execution order when combined with podman run (i.e. the run may not
have generated any logs at the time podman logs was executed).
OPTIONS
--color
Output the containers with different colors in the log.
--follow, -f
Follow log output. Default is false.
Note: When following a container which is removed by podman container rm
or removed on exit (podman run --rm ...), there is a chance that the log
file is removed before podman logs reads the final content.
--latest, -l
Instead of providing the container name or ID, use the last created con-
tainer. Note: the last started container can be from other users of
Podman on the host machine. (This option is not available with the re-
mote Podman client, including Mac and Windows (excluding WSL2) machines)
--names, -n
Output the container names instead of the container IDs in the log.
--since=TIMESTAMP
Show logs since TIMESTAMP. The --since option can be Unix timestamps,
date formatted timestamps, or Go duration strings (e.g. 10m, 1h30m) com-
puted relative to the client machine's time. Supported formats for date
formatted time stamps include RFC3339Nano, RFC3339, 2006-01-02T15:04:05,
2006-01-02T15:04:05.999999999, 2006-01-02Z07:00, and 2006-01-02.
--tail=LINES
Output the specified number of LINES at the end of the logs. LINES must
be an integer. Defaults to -1, which prints all lines
--timestamps, -t
Show timestamps in the log outputs. The default is false
--until=TIMESTAMP
Show logs until TIMESTAMP. The --until option can be Unix timestamps,
date formatted timestamps, or Go duration strings (e.g. 10m, 1h30m) com-
puted relative to the client machine's time. Supported formats for date
formatted time stamps include RFC3339Nano, RFC3339, 2006-01-02T15:04:05,
2006-01-02T15:04:05.999999999, 2006-01-02Z07:00, and 2006-01-02.
EXAMPLE
To view a container's logs:
podman logs -t b3f2436bdb978c1d33b1387afb5d7ba7e3243ed2ce908db431ac0069da86cb45
2017/08/07 10:16:21 Seeked /var/log/crio/pods/eb296bd56fab164d4d3cc46e5776b54414af3bf543d138746b25832c816b933b/c49f49788da14f776b7aa93fb97a2a71f9912f4e5a3e30397fca7dfe0ee0367b.log - &{Offset:0 Whence:0}
1:C 07 Aug 14:10:09.055 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
1:C 07 Aug 14:10:09.055 # Redis version=4.0.1, bits=64, commit=00000000, modified=0, pid=1, just started
1:C 07 Aug 14:10:09.055 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
1:M 07 Aug 14:10:09.055 # You requested maxclients of 10000 requiring at least 10032 max file descriptors.
1:M 07 Aug 14:10:09.055 # Server can't set maximum open files to 10032 because of OS error: Operation not permitted.
1:M 07 Aug 14:10:09.055 # Current maximum open files is 4096. maxclients has been reduced to 4064 to compensate for low ulimit. If you need higher maxclients increase 'ulimit -n'.
1:M 07 Aug 14:10:09.056 * Running mode=standalone, port=6379.
1:M 07 Aug 14:10:09.056 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 07 Aug 14:10:09.056 # Server initialized
To view only the last two lines in container's log:
podman logs --tail 2 b3f2436bdb97
# WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
# Server initialized
To view all containers logs:
podman logs -t --since 0 myserver
1:M 07 Aug 14:10:09.055 # Server can't set maximum open files to 10032 because of OS error: Operation not permitted.
1:M 07 Aug 14:10:09.055 # Current maximum open files is 4096. maxclients has been reduced to 4064 to compensate for low ulimit. If you need higher maxclients increase 'ulimit -n'.
1:M 07 Aug 14:10:09.056 * Running mode=standalone, port=6379.
1:M 07 Aug 14:10:09.056 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 07 Aug 14:10:09.056 # Server initialized
To view a container's logs since a certain time:
podman logs -t --since 2017-08-07T10:10:09.055837383-04:00 myserver
1:M 07 Aug 14:10:09.055 # Server can't set maximum open files to 10032 because of OS error: Operation not permitted.
1:M 07 Aug 14:10:09.055 # Current maximum open files is 4096. maxclients has been reduced to 4064 to compensate for low ulimit. If you need higher maxclients increase 'ulimit -n'.
1:M 07 Aug 14:10:09.056 * Running mode=standalone, port=6379.
1:M 07 Aug 14:10:09.056 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 07 Aug 14:10:09.056 # Server initialized
To view a container's logs generated in the last 10 minutes:
podman logs --since 10m myserver
# Server can't set maximum open files to 10032 because of OS error: Operation not permitted.
# Current maximum open files is 4096. maxclients has been reduced to 4064 to compensate for low ulimit, Increase 'ulimit -n' when higher maxclients are required.
To view a container's logs until 30 minutes ago:
podman logs --until 30m myserver
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 10.0.2.100. Set the 'ServerName' directive globally to suppress this message
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 10.0.2.100. Set the 'ServerName' directive globally to suppress this message
[Tue Jul 20 13:18:14.223727 2021] [mpm_event:notice] [pid 1:tid 140021067187328] AH00489: Apache/2.4.48 (Unix) configured -- resuming normal operations
[Tue Jul 20 13:18:14.223819 2021] [core:notice] [pid 1:tid 140021067187328] AH00094: Command line: 'httpd -D FOREGROUND'
SEE ALSO
podman(1), podman-run(1), podman-rm(1)
HISTORY
February 2018, Updated by Brent Baude bbaude@redhat.com
⟨mailto:bbaude@redhat.com⟩
August 2017, Originally compiled by Ryan Cole rycole@redhat.com
⟨mailto:rycole@redhat.com⟩
podman-logs(1)
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