Compose
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Environment variables in Compose
Extend services in Compose
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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
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Sample apps with Compose
Using Compose in production
Using Compose with Swarm
Engine
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apt-cacher-ng
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Migrate to Engine 1.10
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Run Docker Engine in swarm mode
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Keep containers alive during daemon downtime (Engine)
Limit a container's resources (Engine)
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Run multiple services in a container (Engine)
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Splunk logging driver (Engine)
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Storage overview (Engine)
Syslog logging driver (Engine)
tmpfs mounts
Troubleshoot volume problems (Engine)
Use a logging driver plugin (Engine)
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docker
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docker container create
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docker container inspect
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Engine: Tutorials
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Get Started
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Part 3: Services
Part 4: Swarms
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Part 6: Deploy your app
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Notary
Client configuration (Notary)
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Understand the service architecture (Notary)
Use the Notary client
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要以群集模式使用Docker，請安裝Docker 1.12.0或更高版本。所有平臺的安裝說明都在這里。
當前版本的Docker包括swarm模式，用于本地管理稱為群集的Docker引擎群集。使用Docker CLI創(chuàng)建群集，將應用程序服務部署到群集，并管理群體行為。
如果您之前使用的是Docker版本1.12.0，則可以使用獨立群集，但我們建議您進行更新。
功能亮點
與Docker Engine集成的集群管理：使用Docker Engine CLI創(chuàng)建一群Docker引擎，您可以在其中部署應用程序服務。您不需要額外的編排軟件來創(chuàng)建或管理群。
分散式設計： Docker Engine在部署時不需要處理節(jié)點角色之間的差異，而是在運行時處理任何專業(yè)化。您可以使用Docker Engine部署這兩種節(jié)點，管理員和工作人員。這意味著您可以從單個磁盤映像構建整個群集。
聲明式服務模型： Docker Engine使用聲明式方法讓您在應用程序堆棧中定義各種服務的所需狀態(tài)。例如，您可能會描述一個由帶有消息隊列服務和數(shù)據(jù)庫后端的Web前端服務組成的應用程序。
縮放：對于每個服務，您可以聲明要運行的任務數(shù)量。當您向上或向下縮放時，swarm管理器會通過添加或刪除任務來自動調(diào)整以保持所需的狀態(tài)。
期望的狀態(tài)協(xié)調(diào)： swarm manager節(jié)點持續(xù)監(jiān)視集群狀態(tài)，并協(xié)調(diào)實際狀態(tài)與表達期望狀態(tài)之間的任何差異。例如，如果您設置了一個服務來運行一個容器的10個副本以及一個承載其中兩個副本崩潰的工作器，那么管理器將創(chuàng)建兩個新副本來替換崩潰的副本。swarm manager將新副本分配給正在運行且可用的工作人員。
多主機聯(lián)網(wǎng)：您可以為您的服務指定覆蓋網(wǎng)絡。swarm管理器在初始化或更新應用程序時自動為覆蓋網(wǎng)絡上的容器分配地址。
服務發(fā)現(xiàn)： Swarm管理器節(jié)點為swarm中的每個服務分配一個唯一的DNS名稱并負載平衡正在運行的容器。您可以通過群集中嵌入的DNS服務器查詢?nèi)杭羞\行的每個容器。
負載平衡：您可以將服務的端口暴露給外部負載平衡器。在群集內(nèi)部，您可以指定如何在節(jié)點之間分發(fā)服務容器。
默認情況下為安全：群中的每個節(jié)點都強制進行TLS相互認證和加密，以保護其自身與所有其他節(jié)點之間的通信。您可以選擇使用自定義根證書或來自自定義根CA的證書。
滾動更新：在推出時，您可以逐步將服務更新應用于節(jié)點。swarm管理器允許您控制服務部署到不同節(jié)點集之間的延遲。如果出現(xiàn)任何問題，您可以將任務回滾到以前版本的服務。
接下來是什么？
群模式關鍵概念與教程
學習群模式的關鍵概念。
開始使用Swarm模式教程。
群模式CLI命令
探索群集模式CLI命令
蜂群
群連接
服務創(chuàng)建
服務檢查
服務ls
服務RM
服務規(guī)模
服務PS
服務更新