Shell 脚本将 docker 图像推送到 docker 集线器卡住

Question

I'm trying to push the docker image using the shell script, works fine till login it gets logged in but at push command it gets stuck, when I run docker push command manually it pushes the image but not using shell script.

    #!/bin/bash

    set -x #echo on

    variableA=$(docker build -f test.dockerfile --network=host --no-cache -t myrepo/docker-test . | tail -n1 | cut -d " " -f3)

    echo "$variableA"

    docker ps -a

    echo "$DOCKER_HUB_PWD" | docker login --username="$DOCKER_HUB_UNAME" --password-stdin

    tail -n1

    docker push myrepo/docker-test:latest

    tail -n1

Answer 1

它是由tail -n1引起的。

tail 命令查找输入文件或数据 stream。

句法：

$ tail [OPTION]... [FILE]...

例子：

$ tail -n1 FILE.TXT

cat FILE.TXT | tail -n1

参考： http://man7.org/linux/man-pages/man1/tail.1.html