Docker Image 相關

*建立映像檔

# 於當前目錄，按Dockerfile.test中的指令，建立test:v1 ({name:tag})的映像檔
docker build . -f Dockrfile.test -t test:v1

*拉取與推送映像檔

# docker hub 下載image ({name:tag})
docker pull node:alpine
# node:alpine 重新命名標籤 username/nodea:alpine
docker tag node:alpine username/nodea:alpine
# 推送至私人倉庫
docker push username/node:alpine