# docker update Update configuration of one or more containers ### Aliases `docker container update`, `docker update` ### Options | Name | Type | Default | Description | |:-----------------------|:----------|:--------|:-----------------------------------------------------------------------------| | `--blkio-weight` | `uint16` | `0` | Block IO (relative weight), between 10 and 1000, or 0 to disable (default 0) | | `--cpu-period` | `int64` | `0` | Limit CPU CFS (Completely Fair Scheduler) period | | `--cpu-quota` | `int64` | `0` | Limit CPU CFS (Completely Fair Scheduler) quota | | `--cpu-rt-period` | `int64` | `0` | Limit the CPU real-time period in microseconds | | `--cpu-rt-runtime` | `int64` | `0` | Limit the CPU real-time runtime in microseconds | | `-c`, `--cpu-shares` | `int64` | `0` | CPU shares (relative weight) | | `--cpus` | `decimal` | | Number of CPUs | | `--cpuset-cpus` | `string` | | CPUs in which to allow execution (0-3, 0,1) | | `--cpuset-mems` | `string` | | MEMs in which to allow execution (0-3, 0,1) | | `-m`, `--memory` | `bytes` | `0` | Memory limit | | `--memory-reservation` | `bytes` | `0` | Memory soft limit | | `--memory-swap` | `bytes` | `0` | Swap limit equal to memory plus swap: -1 to enable unlimited swap | | `--pids-limit` | `int64` | `0` | Tune container pids limit (set -1 for unlimited) | | `--restart` | `string` | | Restart policy to apply when a container exits |