% podman-update 1

## NAME
podman\-update - Update the configuration of a given container

## SYNOPSIS
**podman update** [*options*] *container*

**podman container update** [*options*] *container*

## DESCRIPTION

Updates the configuration of an already existing container, allowing different resource limits to be set.
The currently supported options are a subset of the podman create/run resource limit options.

## OPTIONS

@@option blkio-weight

@@option blkio-weight-device

@@option cpu-period

@@option cpu-quota

@@option cpu-rt-period

@@option cpu-rt-runtime

@@option cpu-shares

@@option cpus.container

@@option cpuset-cpus

@@option cpuset-mems

@@option device-read-bps

@@option device-read-iops

@@option device-write-bps

@@option device-write-iops

@@option memory

@@option memory-reservation

@@option memory-swap

@@option memory-swappiness

@@option pids-limit

@@option restart


## EXAMPLEs

Update a container with a new cpu quota and period.
```
podman update --cpus=5 myCtr
```

Update a container with all available options for cgroups v2.
```
podman update --cpus 5 --cpuset-cpus 0 --cpu-shares 123 --cpuset-mems 0 --memory 1G --memory-swap 2G --memory-reservation 2G --blkio-weight-device /dev/zero:123 --blkio-weight 123 --device-read-bps /dev/zero:10mb --device-write-bps /dev/zero:10mb --device-read-iops /dev/zero:1000 --device-write-iops /dev/zero:1000 --pids-limit 123 ctrID
```

Update a container with all available options for cgroups v1.
```
podman update --cpus 5 --cpuset-cpus 0 --cpu-shares 123 --cpuset-mems 0 --memory 1G --memory-swap 2G --memory-reservation 2G --memory-swappiness 50 --pids-limit 123 ctrID
```

## SEE ALSO
**[podman(1)](podman.1.md)**, **[podman-create(1)](podman-create.1.md)**, **[podman-run(1)](podman-run.1.md)**

## HISTORY
August 2022, Originally written by Charlie Doern <cdoern@redhat.com>