【docker】創建Dockerfile並push到docker-hub

創建 dockerfile

Dockerfile

PS: 文件名字必須是這樣Dockerfile

FROM tomcat:8.0
COPY index.jsp  /usr/local/tomcat/webapps/ROOT
EXPOSE 8080

index.jsp

<%
out.println("Hello World, V1");
%>

build 並測試

The docker build command processes this file generating a Docker Image in your Local Image Cache, which you can then start-up using the docker run command, or push to a permanent Image Repository.

docker build 創建一個docker鏡像，這個鏡像可以在你本地運行。

$docker build -t mytomcat:1.0 .

$docker run -p 8080:8080 -d mytomcat:1.0

$curl localhost:8080

push 到 docker hub

註冊一個賬號

Build image

Docker login

輸入用戶名、密碼

Docker push

第一步：修改 tag 名稱

// 必須先修改 tag 名稱
docker tag firstimage YOUR_DOCKERHUB_NAME/firstimage

舉例：
docker tag mytomcat:1.0 preparedman/mytomcat:1.0

第二步：push

docker push YOUR_DOCKERHUB_NAME/firstimage

舉例：docker push preparedman/mytomcat:1.0

Docker 測試

https://cloud.docker.com/u/preparedman/repository/docker/preparedman/mytomcat

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