bash - 在Dockerfile中运行脚本以添加别名

Question

我有这个Dockerfile:

FROM webdevops/php-apache-dev:7.2
ADD docker-bootstrap.sh /docker-bootstrap.sh
RUN /docker-bootstrap.sh

docker-bootstrap.sh看起来像这样:

#!/bin/bash
echo 'hello!!!'
cat >> ~/.bashrc <<EOT
alias hi='hello'
EOT

问题是，当我运行 docker build --no-cache=true .时，我看到该代码正在运行(我看到 hello!!!字符串已打印到控制台)，但是当我猛击Docker服务并查看我的 ~/.bashrc文件时，别名不存在。

编辑:

我在 Dockerfile配置文件中引用此 docker-compose.yml。该文件的相关部分如下:

services:
  laravel:
    container_name: laravel
    build: .
    links:
      - laravelmysql
      - testmysql
    depends_on:
      - laravelmysql
      - testmysql
    ports:
      - 8445:443
    volumes:
      - .:/app
    environment:
      docker: 'true'
      WEB_DOCUMENT_ROOT: '/app/public'
      WEB_NO_CACHE_PATTERN: '\.(.*)$$'
      working_dir: '/app'

然后，我使用 docker exec -it laravel /bin/bash进入服务。

Answer 1

编辑:

我将docker-compose.yml文件剥离到下面，因为我没有依赖项:

version: '3.1'

services:
  laravel:
    container_name: laravel
    build: .
    ports:
      - 8445:443
    volumes:
      - .:/app
    environment:
      docker: 'true'
      WEB_DOCUMENT_ROOT: '/app/public'
      WEB_NO_CACHE_PATTERN: '\.(.*)$$'
      working_dir: '/app'

使用 docker-compose up文件的 cat和 /root/.bashrc启动容器，表明那里存在 别名。

$ docker exec -it laravel bash
root@fb830bebfb0b:/#
root@fb830bebfb0b:/# cat /root/.bashrc
# ~/.bashrc: executed by bash(1) for non-login shells.

# Note: PS1 and umask are already set in /etc/profile. You should not
# need this unless you want different defaults for root.
# PS1='${debian_chroot:+($debian_chroot)}\h:\w\$ '
# umask 022

# You may uncomment the following lines if you want `ls' to be colorized:
# export LS_OPTIONS='--color=auto'
# eval "`dircolors`"
# alias ls='ls $LS_OPTIONS'
# alias ll='ls $LS_OPTIONS -l'
# alias l='ls $LS_OPTIONS -lA'
#
# Some more alias to avoid making mistakes:
# alias rm='rm -i'
# alias cp='cp -i'
# alias mv='mv -i'
alias hi='hello'
root@fb830bebfb0b:/#

几件事情要寻找:

您正在检查root用户的.bashrc，因为除非另行指定，否则Dockerfile中的RUN将以root用户身份执行命令。

执行docker-bootstrap.sh文件可用的权限。

只是为了确保重建图像。

原始答案

这个对我有用。我在这里想念什么吗？请检查以下内容:

 ~/del $ cat docker-bootstrap.sh
#!/bin/bash
echo 'hello!!!'
cat >> ~/.bashrc <<EOT
alias hi='hello'
EOT
 ~/del $
 ~/del $
 ~/del $ cat Dockerfile
FROM webdevops/php-apache-dev:7.2
ADD docker-bootstrap.sh /docker-bootstrap.sh
RUN /docker-bootstrap.sh
 ~/del $
 ~/del $
 ~/del $ docker build --no-cache=true .
Sending build context to Docker daemon    126kB
Step 1/3 : FROM webdevops/php-apache-dev:7.2
 ---> 9c809301e050
Step 2/3 : ADD docker-bootstrap.sh /docker-bootstrap.sh
 ---> e90c2aa4cd44
Step 3/3 : RUN /docker-bootstrap.sh
 ---> Running in efdc2e899503
hello!!!
Removing intermediate container efdc2e899503
 ---> 567c22c68bb9
Successfully built 567c22c68bb9
 ~/del $
 ~/del $
 ~/del $ docker run -it 567c22c68bb9 -- cat /root/.bashrc
# ~/.bashrc: executed by bash(1) for non-login shells.

# Note: PS1 and umask are already set in /etc/profile. You should not
# need this unless you want different defaults for root.
# PS1='${debian_chroot:+($debian_chroot)}\h:\w\$ '
# umask 022

# You may uncomment the following lines if you want `ls' to be colorized:
# export LS_OPTIONS='--color=auto'
# eval "`dircolors`"
# alias ls='ls $LS_OPTIONS'
# alias ll='ls $LS_OPTIONS -l'
# alias l='ls $LS_OPTIONS -lA'
#
# Some more alias to avoid making mistakes:
# alias rm='rm -i'
# alias cp='cp -i'
# alias mv='mv -i'
alias hi='hello'