目录搜索
ComposeAbout versions and upgrading (Compose)ASP.NET Core + SQL Server on Linux (Compose)CLI environment variables (Compose)Command-line completion (Compose)Compose(组成)Compose command-line reference(组合命令行参考)Control startup order (Compose)Django and PostgreSQL (Compose)Docker stacks and distributed application bundles (Compose)docker-compose build(docker-compose构建)docker-compose bundledocker-compose configdocker-compose createdocker-compose downdocker-compose eventsdocker-compose execdocker-compose helpdocker-compose imagesdocker-compose killdocker-compose logsdocker-compose pausedocker-compose portdocker-compose psdocker-compose pulldocker-compose pushdocker-compose restartdocker-compose rmdocker-compose rundocker-compose scaledocker-compose startdocker-compose stopdocker-compose topdocker-compose unpausedocker-compose upEnvironment file (Compose)Environment variables in ComposeExtend services in ComposeFrequently asked questions (Compose)Getting started (Compose)Install ComposeLink environment variables (deprecated) (Compose)Networking in ComposeOverview of Docker ComposeOverview of docker-compose CLIQuickstart: Compose and WordPressRails and PostgreSQL (Compose)Sample apps with ComposeUsing Compose in productionUsing Compose with SwarmEngine.NET Core application (Engine)About images, containers, and storage drivers (Engine)Add nodes to the swarm (Engine)Apply custom metadata (Engine)Apply rolling updates (Engine)apt-cacher-ngBest practices for writing Dockerfiles (Engine)Binaries (Engine)Bind container ports to the host (Engine)Breaking changes (Engine)Build your own bridge (Engine)Configure container DNS (Engine)Configure container DNS in user-defined networks (Engine)CouchDB (Engine)Create a base image (Engine)Create a swarm (Engine)Customize the docker0 bridge (Engine)Debian (Engine)Default bridge networkDelete the service (Engine)Deploy a service (Engine)Deploy services to a swarm (Engine)Deprecated Engine featuresDocker container networking (Engine)Docker overview (Engine)Docker run reference (Engine)Dockerfile reference (Engine)Dockerize an applicationDrain a node (Engine)EngineFAQ (Engine)Fedora (Engine)Get started (Engine)Get started with macvlan network driver (Engine)Get started with multi-host networking (Engine)How nodes work (Engine)How services work (Engine)Image management (Engine)Inspect the service (Engine)Install Docker (Engine)IPv6 with Docker (Engine)Join nodes to a swarm (Engine)Legacy container links (Engine)Lock your swarm (Engine)Manage nodes in a swarm (Engine)Manage sensitive data with Docker secrets (Engine)Manage swarm security with PKI (Engine)Manage swarm service networks (Engine)Migrate to Engine 1.10Optional Linux post-installation steps (Engine)Overview (Engine)PostgreSQL (Engine)Raft consensus in swarm mode (Engine)Riak (Engine)Run Docker Engine in swarm modeScale the service (Engine)SDKs (Engine)Select a storage driver (Engine)Set up for the tutorial (Engine)SSHd (Engine)Storage driver overview (Engine)Store service configuration data (Engine)Swarm administration guide (Engine)Swarm mode key concepts (Engine)Swarm mode overlay network security model (Engine)Swarm mode overview (Engine)Understand container communication (Engine)Use multi-stage builds (Engine)Use swarm mode routing mesh (Engine)Use the AUFS storage driver (Engine)Use the Btrfs storage driver (Engine)Use the Device mapper storage driver (Engine)Use the OverlayFS storage driver (Engine)Use the VFS storage driver (Engine)Use the ZFS storage driver (Engine)Engine: Admin GuideAmazon CloudWatch logs logging driver (Engine)Bind mounts (Engine)Collect Docker metrics with Prometheus (Engine)Configuring and running Docker (Engine)Configuring logging drivers (Engine)Control and configure Docker with systemd (Engine)ETW logging driver (Engine)Fluentd logging driver (Engine)Format command and log output (Engine)Google Cloud logging driver (Engine)Graylog Extended Format (GELF) logging driver (Engine)Journald logging driver (Engine)JSON File logging driver (Engine)Keep containers alive during daemon downtime (Engine)Limit a container's resources (Engine)Link via an ambassador container (Engine)Log tags for logging driver (Engine)Logentries logging driver (Engine)PowerShell DSC usage (Engine)Prune unused Docker objects (Engine)Run multiple services in a container (Engine)Runtime metrics (Engine)Splunk logging driver (Engine)Start containers automatically (Engine)Storage overview (Engine)Syslog logging driver (Engine)tmpfs mountsTroubleshoot volume problems (Engine)Use a logging driver plugin (Engine)Using Ansible (Engine)Using Chef (Engine)Using Puppet (Engine)View a container's logs (Engine)Volumes (Engine)Engine: CLIDaemon CLI reference (dockerd) (Engine)dockerdocker attachdocker builddocker checkpointdocker checkpoint createdocker checkpoint lsdocker checkpoint rmdocker commitdocker configdocker config createdocker config inspectdocker config lsdocker config rmdocker containerdocker container attachdocker container commitdocker container cpdocker container createdocker container diffdocker container execdocker container exportdocker container inspectdocker container killdocker container logsdocker container lsdocker container pausedocker container portdocker container prunedocker container renamedocker container restartdocker container rmdocker container rundocker container startdocker container statsdocker container stopdocker container topdocker container unpausedocker container updatedocker container waitdocker cpdocker createdocker deploydocker diffdocker eventsdocker execdocker exportdocker historydocker imagedocker image builddocker image historydocker image importdocker image inspectdocker image loaddocker image lsdocker image prunedocker image pulldocker image pushdocker image rmdocker image savedocker image tagdocker imagesdocker importdocker infodocker inspectdocker killdocker loaddocker logindocker logoutdocker logsdocker networkdocker network connectdocker network createdocker network disconnectdocker network inspectdocker network lsdocker network prunedocker network rmdocker nodedocker node demotedocker node inspectdocker node lsdocker node promotedocker node psdocker node rmdocker node updatedocker pausedocker plugindocker plugin createdocker plugin disabledocker plugin enabledocker plugin inspectdocker plugin installdocker plugin lsdocker plugin pushdocker plugin rmdocker plugin setdocker plugin upgradedocker portdocker psdocker pulldocker pushdocker renamedocker restartdocker rmdocker rmidocker rundocker savedocker searchdocker secretdocker secret createdocker secret inspectdocker secret lsdocker secret rmdocker servicedocker service createdocker service inspectdocker service logsdocker service lsdocker service psdocker service rmdocker service scaledocker service updatedocker stackdocker stack deploydocker stack lsdocker stack psdocker stack rmdocker stack servicesdocker startdocker statsdocker stopdocker swarmdocker swarm cadocker swarm initdocker swarm joindocker swarm join-tokendocker swarm leavedocker swarm unlockdocker swarm unlock-keydocker swarm updatedocker systemdocker system dfdocker system eventsdocker system infodocker system prunedocker tagdocker topdocker unpausedocker updatedocker versiondocker volumedocker volume createdocker volume inspectdocker volume lsdocker volume prunedocker volume rmdocker waitUse the Docker command line (Engine)Engine: ExtendAccess authorization plugin (Engine)Docker log driver pluginsDocker network driver plugins (Engine)Extending Engine with pluginsManaged plugin system (Engine)Plugin configuration (Engine)Plugins API (Engine)Volume plugins (Engine)Engine: SecurityAppArmor security profiles for Docker (Engine)Automation with content trust (Engine)Content trust in Docker (Engine)Delegations for content trust (Engine)Deploying Notary (Engine)Docker security (Engine)Docker security non-events (Engine)Isolate containers with a user namespace (Engine)Manage keys for content trust (Engine)Play in a content trust sandbox (Engine)Protect the Docker daemon socket (Engine)Seccomp security profiles for Docker (Engine)Secure EngineUse trusted imagesUsing certificates for repository client verification (Engine)Engine: TutorialsEngine tutorialsNetwork containers (Engine)Get StartedPart 1: OrientationPart 2: ContainersPart 3: ServicesPart 4: SwarmsPart 5: StacksPart 6: Deploy your appMachineAmazon Web Services (Machine)Digital Ocean (Machine)docker-machine activedocker-machine configdocker-machine createdocker-machine envdocker-machine helpdocker-machine inspectdocker-machine ipdocker-machine killdocker-machine lsdocker-machine provisiondocker-machine regenerate-certsdocker-machine restartdocker-machine rmdocker-machine scpdocker-machine sshdocker-machine startdocker-machine statusdocker-machine stopdocker-machine upgradedocker-machine urlDriver options and operating system defaults (Machine)Drivers overview (Machine)Exoscale (Machine)Generic (Machine)Get started with a local VM (Machine)Google Compute Engine (Machine)IBM Softlayer (Machine)Install MachineMachineMachine CLI overviewMachine command-line completionMachine concepts and helpMachine overviewMicrosoft Azure (Machine)Microsoft Hyper-V (Machine)Migrate from Boot2Docker to MachineOpenStack (Machine)Oracle VirtualBox (Machine)Provision AWS EC2 instances (Machine)Provision Digital Ocean Droplets (Machine)Provision hosts in the cloud (Machine)Rackspace (Machine)VMware Fusion (Machine)VMware vCloud Air (Machine)VMware vSphere (Machine)NotaryClient configuration (Notary)Common Server and signer configurations (Notary)Getting started with NotaryNotary changelogNotary configuration filesRunning a Notary serviceServer configuration (Notary)Signer configuration (Notary)Understand the service architecture (Notary)Use the Notary client
文字

描述

更新一个或多个容器的配置

用法

docker update [OPTIONS] CONTAINER [CONTAINER...]

备选方案

名字,简写

默认

描述

-blkio-weight

0

阻止IO(相对权重),介于10和1000之间,或0禁用(默认值为0)

--cpu-period

0

限制CPU CFS(完全公平调度程序)期间

--cpu-quota

0

限制CPU CFS(完全公平调度程序)配额

--cpu-rt-period

0

以微秒为单位限制CPU实时周期

--cpu-rt-runtime

0

以微秒为单位限制CPU实时运行时间

--cpu-shares, -c

0

CPU份额(相对重量)

--cpus


CPU数量

--cpuset-cpus


允许执行的CPU(0-3,0,1)

--cpuset-mems


允许执行的MEM(0-3,0,1)

--kernel-memory

0

内核内存限制

--memory, -m

0

内存限制

--memory-reservation

0

内存软限制

--memory-swap

0

交换限制等于内存加交换:'-1'以启用无限交换

--restart


重新启动策略以在容器退出时应用

父命令

命令

描述

docker

Docker CLI的基本命令。

扩展描述

docker update命令动态更新容器配置。可以使用此命令防止容器从其Docker主机消耗太多资源。使用单个命令,您可以对单个容器或多个容器设置限制。若要指定多个容器,请提供以空格分隔的容器名称或ID列表.

--kernel-memory选项时,可以在运行或停止的容器上指定这些选项。在4.6以上的内核版本上,只能更新--kernel-memory在已停止的容器上或在内核内存初始化的正在运行的容器上。

实例

下面的部分将说明使用此命令的方法。

更新容器的CPU共享

若要将容器的CPU共享限制为512,请首先标识容器名称或ID。你可以用docker ps找到这些价值。还可以使用从docker run命令。然后,执行以下操作:

$ docker update --cpu-shares 512 abebf7571666

使用cpu共享和内存更新容器。

要更新多个容器的多个资源配置,请执行以下操作:

$ docker update --cpu-shares 512 -m 300M abebf7571666 hopeful_morse

更新容器的内核内存约束

控件更新容器的内核内存限制。--kernel-memory选择。在4.6以上的内核版本上,只有当容器启动时,才能在运行的容器上更新此选项。--kernel-memory.如果容器已启动--kernel-memory在更新内核内存之前,需要停止容器。

例如,如果使用以下命令启动容器:

$ docker run -dit --name test --kernel-memory 50M ubuntu bash

可以在容器运行时更新内核内存:

$ docker update --kernel-memory 80M test

如果你启动了一个容器内核内存初始化:

$ docker run -dit --name test2 --memory 300M ubuntu bash

更新正在运行的容器的内核内存test2都会失败。更新之前,需要停止容器。--kernel-memory背景。下次启动它时,容器将使用新值。

比更新的内核版本(包括) 4.6没有此限制,您可以使用--kernel-memory和其他选择一样。

更新容器的重新启动策略

您可以在运行的容器上更改容器的重新启动策略。新的重新启动策略在运行后立即生效。docker update在容器上。

要更新一个或多个容器的重新启动策略:

$ docker update --restart=on-failure:3 abebf7571666 hopeful_morse

注意,如果容器是使用“-rm”标志启动的,则不能更新它的重新启动策略。大AutoRemoveRestartPolicy对于容器来说是相互排斥的。

上一篇:下一篇: