Compose
About versions and upgrading (Compose)
ASP.NET Core + SQL Server on Linux (Compose)
CLI environment variables (Compose)
Command-line completion (Compose)
Compose（組成）
Compose command-line reference（組合命令行參考）
Control startup order (Compose)
Django and PostgreSQL (Compose)
Docker stacks and distributed application bundles (Compose)
docker-compose build（docker-compose構(gòu)建）
docker-compose bundle
docker-compose config
docker-compose create
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docker-compose events
docker-compose exec
docker-compose help
docker-compose images
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docker-compose top
docker-compose unpause
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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
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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)
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Apply rolling updates (Engine)
apt-cacher-ng
Best practices for writing Dockerfiles (Engine)
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Dockerize an application
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Engine
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View a container's logs (Engine)
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docker
docker attach
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docker container
docker container attach
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docker secret create
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docker service
docker service create
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docker system
docker system df
docker system events
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docker version
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docker volume create
docker volume inspect
docker volume ls
docker volume prune
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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
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docker-machine provision
docker-machine regenerate-certs
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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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日志驅(qū)動程序插件
本文檔介紹了Docker的日志驅(qū)動程序插件。
記錄驅(qū)動程序使用戶能夠?qū)⑷萜魅罩巨D(zhuǎn)發(fā)到其他服務(wù)進(jìn)行處理。Docker包含幾個(gè)日志驅(qū)動程序作為內(nèi)置函數(shù)，但不能希望通過內(nèi)置驅(qū)動程序支持所有的使用情況。插件允許Docker支持廣泛的日志記錄服務(wù)，而無需在主要Docker代碼庫中為這些服務(wù)嵌入客戶端庫。有關(guān)更多信息，請參閱插件文檔。
創(chuàng)建日志插件
日志插件的主界面使用與其他插件類型使用的相同的JSON + HTTP RPC協(xié)議。請參閱示例插件以獲取日志插件的參考實(shí)現(xiàn)。這個(gè)例子包裝了內(nèi)置的jsonfilelog日志驅(qū)動程序。
LogDriver協(xié)議
記錄插件必須在插件激活期間注冊為LogDriver。一旦激活的用戶可以指定插件作為日志驅(qū)動程序。
有兩個(gè)日志插件必須實(shí)現(xiàn)的HTTP端點(diǎn)：
/LogDriver.StartLogging
向插件發(fā)信號通知容器正在啟動，插件應(yīng)該開始接收日志。
日志將通過請求中定義的文件進(jìn)行流式傳輸。在Linux上，這個(gè)文件是一個(gè)FIFO。Windows上目前不支持日志記錄插件。
請求*
{"File": "/path/to/file/stream","Info": {"ContainerID": "123456"}}File是需要使用的日志流的路徑。每次調(diào)用都StartLogging應(yīng)該提供不同的文件路徑，即使它是插件已經(jīng)收到日志的容器。該文件由docker用隨機(jī)生成的名稱創(chuàng)建。
Info是有關(guān)正在記錄的容器的詳細(xì)信息。這是相當(dāng)自由的形式，但是由以下結(jié)構(gòu)定義來定義：
type Info struct {
Config map[string]string
ContainerID string
ContainerName string
ContainerEntrypoint string
ContainerArgs []string
ContainerImageID string
ContainerImageName string
ContainerCreated time.Time
ContainerEnv []string
ContainerLabels map[string]string
LogPath string
DaemonName string}ContainerID 將始終提供此結(jié)構(gòu)，但其他字段可能為空或缺失。
響應(yīng)
{"Err": ""}如果在此請求期間發(fā)生錯(cuò)誤，請將錯(cuò)誤消息添加到Err響應(yīng)中的字段。如果沒有錯(cuò)誤，那么你可以發(fā)送一個(gè)空的響應(yīng)（{}）或一個(gè)空的值的Err字段。
此時(shí)驅(qū)動程序應(yīng)該使用傳入文件中的日志消息。如果消息未被使用，它可能會導(dǎo)致容器在嘗試寫入其stdio流時(shí)被阻塞。
日志流消息被編碼為協(xié)議緩沖區(qū)。protobuf定義在docker倉庫中。
由于協(xié)議緩沖區(qū)不是自分隔的，所以必須使用以下流格式從流中解碼它們：
[size][message]
在哪里size是一個(gè)4字節(jié)的大端二進(jìn)制編碼uint32。size在這種情況下定義下一個(gè)消息的大小。message是實(shí)際的日志條目。
流編碼器/解碼器的參考golang實(shí)現(xiàn)可以在這里找到
/LogDriver.StopLogging
指示插件停止從定義的文件中收集日志。一旦收到響應(yīng)，該文件將被Docker刪除。在回應(yīng)此請求之前，您必須確保收集流上的所有日志，否則可能會丟失日志數(shù)據(jù)。
此端點(diǎn)上的請求并不意味著該容器僅在已停止的情況下被移除。
請求：
{"File": "/path/to/file/stream"}響應(yīng)：
{"Err": ""}如果在此請求期間發(fā)生錯(cuò)誤，請將錯(cuò)誤消息添加到Err響應(yīng)中的字段。如果沒有錯(cuò)誤，那么你可以發(fā)送一個(gè)空的響應(yīng)（{}）或一個(gè)空的值的Err字段。
可選端點(diǎn)
日志記錄插件可以實(shí)現(xiàn)兩個(gè)額外的日志記錄端點(diǎn)：
/LogDriver.Capabilities
定義日志驅(qū)動程序的功能。您必須為Docker實(shí)現(xiàn)此端點(diǎn)才能利用任何已定義的功能。
請求：
{}響應(yīng)：
{"ReadLogs": true}支助能力：
ReadLogs- 這告訴Docker該插件能夠?qū)⑷罩咀x回客戶端。報(bào)告他們支持的插件ReadLogs必須實(shí)現(xiàn)/LogDriver.ReadLogs端點(diǎn)/LogDriver.ReadLogs將日志讀回客戶端。這在docker logs <container>被調(diào)用時(shí)使用。為了讓Docker使用這個(gè)端點(diǎn)，插件必須在/LogDriver.Capabilities被調(diào)用時(shí)指定多少。
請求：
"ReadConfig": {}, "Info": { "ContainerID": "123456" } }
ReadConfig是閱讀選項(xiàng)列表，它定義了一個(gè)具有以下golang結(jié)構(gòu)：類型ReadConfig結(jié)構(gòu){由于尾了time.time int跟隨bool}
Since定義應(yīng)該發(fā)送的最舊日志。
Tail定義要讀取的行數(shù)（例如，像命令tail -n 10）
Follow表示客戶希望保持連接狀態(tài)，以便在讀取現(xiàn)有日志后收到新的日志消息。
Info是在中定義的相同類型/LogDriver.StartLogging。它應(yīng)該用于確定要讀取的日志集合。
響應(yīng)：
響應(yīng)應(yīng)該是編碼的日志消息，使用與插件從Docker消耗的消息相同的格式。