Compose
About 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 bundle
docker-compose config
docker-compose create
docker-compose down
docker-compose events
docker-compose exec
docker-compose help
docker-compose images
docker-compose kill
docker-compose logs
docker-compose pause
docker-compose port
docker-compose ps
docker-compose pull
docker-compose push
docker-compose restart
docker-compose rm
docker-compose run
docker-compose scale
docker-compose start
docker-compose stop
docker-compose top
docker-compose unpause
docker-compose up
Environment file (Compose)
Environment variables in Compose
Extend services in Compose
Frequently asked questions (Compose)
Getting started (Compose)
Install Compose
Link environment variables (deprecated) (Compose)
Networking in Compose
Overview of Docker Compose
Overview of docker-compose CLI
Quickstart: Compose and WordPress
Rails and PostgreSQL (Compose)
Sample apps with Compose
Using Compose in production
Using Compose with Swarm
Engine
.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-ng
Best 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 network
Delete the service (Engine)
Deploy a service (Engine)
Deploy services to a swarm (Engine)
Deprecated Engine features
Docker container networking (Engine)
Docker overview (Engine)
Docker run reference (Engine)
Dockerfile reference (Engine)
Dockerize an application
Drain a node (Engine)
Engine
FAQ (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 1.10
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Overview (Engine)
PostgreSQL (Engine)
Raft consensus in swarm mode (Engine)
Riak (Engine)
Run Docker Engine in swarm mode
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Select a storage driver (Engine)
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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 Guide
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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 mounts
Troubleshoot 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: CLI
Daemon CLI reference (dockerd) (Engine)
docker
docker attach
docker build
docker checkpoint
docker checkpoint create
docker checkpoint ls
docker checkpoint rm
docker commit
docker config
docker config create
docker config inspect
docker config ls
docker config rm
docker container
docker container attach
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docker container cp
docker container create
docker container diff
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docker container export
docker container inspect
docker container kill
docker container logs
docker container ls
docker container pause
docker container port
docker container prune
docker container rename
docker container restart
docker container rm
docker container run
docker container start
docker container stats
docker container stop
docker container top
docker container unpause
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docker container wait
docker cp
docker create
docker deploy
docker diff
docker events
docker exec
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docker image prune
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docker images
docker import
docker info
docker inspect
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docker port
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docker rename
docker restart
docker rm
docker rmi
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docker secret
docker secret create
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docker secret ls
docker secret rm
docker service
docker service create
docker service inspect
docker service logs
docker service ls
docker service ps
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docker service scale
docker service update
docker stack
docker stack deploy
docker stack ls
docker stack ps
docker stack rm
docker stack services
docker start
docker stats
docker stop
docker swarm
docker swarm ca
docker swarm init
docker swarm join
docker swarm join-token
docker swarm leave
docker swarm unlock
docker swarm unlock-key
docker swarm update
docker system
docker system df
docker system events
docker system info
docker system prune
docker tag
docker top
docker unpause
docker update
docker version
docker volume
docker volume create
docker volume inspect
docker volume ls
docker volume prune
docker volume rm
docker wait
Use the Docker command line (Engine)
Engine: Extend
Access authorization plugin (Engine)
Docker log driver plugins
Docker network driver plugins (Engine)
Extending Engine with plugins
Managed plugin system (Engine)
Plugin configuration (Engine)
Plugins API (Engine)
Volume plugins (Engine)
Engine: Security
AppArmor 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 Engine
Use trusted images
Using certificates for repository client verification (Engine)
Engine: Tutorials
Engine tutorials
Network containers (Engine)
Get Started
Part 1: Orientation
Part 2: Containers
Part 3: Services
Part 4: Swarms
Part 5: Stacks
Part 6: Deploy your app
Machine
Amazon Web Services (Machine)
Digital Ocean (Machine)
docker-machine active
docker-machine config
docker-machine create
docker-machine env
docker-machine help
docker-machine inspect
docker-machine ip
docker-machine kill
docker-machine ls
docker-machine provision
docker-machine regenerate-certs
docker-machine restart
docker-machine rm
docker-machine scp
docker-machine ssh
docker-machine start
docker-machine status
docker-machine stop
docker-machine upgrade
docker-machine url
Driver 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 Machine
Machine
Machine CLI overview
Machine command-line completion
Machine concepts and help
Machine overview
Microsoft Azure (Machine)
Microsoft Hyper-V (Machine)
Migrate from Boot2Docker to Machine
OpenStack (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)
Notary
Client configuration (Notary)
Common Server and signer configurations (Notary)
Getting started with Notary
Notary changelog
Notary configuration files
Running a Notary service
Server configuration (Notary)
Signer configuration (Notary)
Understand the service architecture (Notary)
Use the Notary client
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本主题介绍Docker Engine 1.12的集群管理和编排功能特有的一些概念。
什么是群？
嵌入在Docker Engine中的集群管理和编排功能是使用SwarmKit构建的。参与群集的Docker引擎以群集模式运行。您可以通过初始化群集或加入现有群集来为引擎启用群集模式。
一个群是Docker引擎或集群节点，在这里部署服务。Docker Engine CLI和API包括管理群集节点（例如，添加或移除节点）以及在群集中部署和编排服务的命令。
当您不使用群集模式运行Docker时，您将执行容器命令。当您在群集模式下运行Docker时，可以编排服务。您可以在同一个Docker实例上运行swarm服务和独立容器。
什么是节点？
节点是Docker引擎参与群的一个实例。您也可以将其视为Docker节点。您可以在单台物理计算机或云服务器上运行一个或多个节点，但生产群部署通常包括分布在多台物理机和云计算机上的Docker节点。
要将您的应用程序部署到群集，您需要向管理器节点提交服务定义。管理器节点将称为任务的工作单元分派给工作节点。
管理器节点还执行维护群体所需状态所需的编排和群集管理功能。管理器节点选择一位领导者来执行编排任务。
工作者节点接收并执行从管理器节点分派的任务。默认情况下，管理器节点也可以将服务作为工作节点运行，但您可以将它们配置为独占运行管理器任务，并且是纯管理器节点。代理在每个工作节点上运行并报告分配给它的任务。工作节点通知管理节点其分配任务的当前状态，以便管理员可以维护每个工作人员的期望状态。
服务和任务
服务是任务的定义，经理或工作节点上执行。它是群体系统的中心结构，也是群体与用户互动的主要根源。
在创建服务时，您可以指定要使用哪个容器映像以及要在正在运行的容器中执行哪些命令。
在复制服务模型中，swarm管理器根据您在所需状态中设置的比例在节点之间分配特定数量的副本任务。
对于全局服务，群集为群集中每个可用节点上的服务运行一个任务。
任务携带多克尔容器和在容器内部运行的命令。它是群体的原子调度单位。管理器节点根据服务规模中设置的副本数量将任务分配给工作节点。一旦任务分配给节点，它就不能移动到另一个节点。它只能在分配的节点上运行或失败。
负载平衡
swarm管理器使用入口负载平衡来公开要在群集外部提供的服务。swarm manager可以自动为服务分配一个PublishedPort，或者您可以为该服务配置一个PublishedPort。您可以指定任何未使用的端口。如果您不指定端口，那么swarm管理器将为该服务分配一个30000-32767范围内的端口。
外部组件（如云负载平衡器）可以访问群集中任何节点的PublishedPort上的服务，而不管该节点当前是否正在运行该服务的任务。群路由中的所有节点都会连接到正在运行的任务实例。
Swarm模式有一个内部DNS组件，可自动为群集中的每个服务分配一个DNS条目。swarm管理器使用内部负载平衡根据服务的DNS名称在群集内的服务之间分配请求。