Docker 之 運(yùn)行第一個(gè)程序

一、運(yùn)行第一個(gè)hello-world程序

[root@docker ~]# docker run hello-world
#本地?zé)o法找到hello-world的鏡像
Unable to find image 'hello-world:latest' locally
#從遠(yuǎn)程倉庫拉取hello-world鏡像
latest: Pulling from library/hello-world
1b930d010525: Pull complete 
Digest: sha256:4df8ca8a7e309c256d60d7971ea14c27672fc0d10c5f303856d7bc48f8cc17ff
#下載完成了一個(gè)新的鏡像(hello-world)
Status: Downloaded newer image for hello-world:latest

#鏡像容器運(yùn)行內(nèi)容（看到以下內(nèi)容，代表運(yùn)行正常）
Hello from Docker!
This message shows that your installation appears to be working correctly.

   #為了產(chǎn)生此信息，容器做了下以下步驟工作：
To generate this message, Docker took the following steps:
   #docker的客戶端連接到服務(wù)器的docker服務(wù)端，以守護(hù)進(jìn)程在后臺(tái)啟動(dòng)，典型的CS
 1. The Docker client contacted the Docker daemon.
   #docer服務(wù)端從docker hub遠(yuǎn)程倉庫下載了一個(gè)hello-world的鏡像
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
    #docker服務(wù)端通過這個(gè)鏡像啟動(dòng)了一個(gè)新的容器，執(zhí)行了相應(yīng)的命令或程序，輸出了一段信息或內(nèi)容。
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
    #docker服務(wù)器把數(shù)據(jù)流輸出到docker客戶端，并發(fā)送到你的終端。
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/