创建能SSH远程连接的Centos7镜像

创建能SSH远程连接的Centos7镜像

官网拉取最新的Centos7镜像

官网地址

用改镜像启动容器

docker run -it centos:centos7.9.2009

进入容器

docker exec -it [ImageID] bash

一顿安装

### yum更新
yum update -y

### 安装net-tools
yum install -y  net-tools.x86_64  vim

### 安装passwd openssl openssh-server
yum install passwd openssl openssh-server -y

### 生成公钥,私钥
ssh-keygen -q -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key -N ''
ssh-keygen -q -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N ''
ssh-keygen -t dsa -f /etc/ssh/ssh_host_ed25519_key -N ''
/usr/sbin/sshd -D&
echo "/usr/sbin/sshd -D" >> /etc/rc.local

### 更新密码并退出
passwd root
exit

### 更改pip源
mkdir ~/.pip && vi pip.conf

### 填入
[global]
index-url = http://pypi.douban.com/simple
[install]
use-mirrors =true
mirrors =http://pypi.douban.com/simple/
trusted-host =pypi.douban.com

### 安装pip
 yum install epel-release -y && yum install python-pip -y 

提交生成新的镜像

OPTIONS说明：

-a :提交的镜像作者；
-c :使用Dockerfile指令来创建镜像；
-m :提交时的说明文字；
-p :在commit时，将容器暂停。
docker commit --change='CMD ["python", "main.py"]'-p a7e589406191 dockerhub.datagrand.com/rec_product/centos_base:1.0
--change 可以改变commit之后的command操作, (这个操作可以用docker inspect ImagesID查看)

再次运行, 并用SSH连接

docker run -p 10022:22 -d sshd-centos /usr/sbin/sshd -D

推送镜像到阿里云仓库

阿里云镜像仓库指导

基于官方的Python镜像, 添加ssh远程登陆的Dockerfile

FROM python:3.7.12
RUN sed -i 's/http:\/\/deb.debian.org/https:\/\/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
	&& apt-get update --allow-releaseinfo-change \
	&& apt-get -y install openssh-server vim curl gcc g++ passwd locales openssl net-tools \
	&& mkdir /run/sshd \
	&& mkdir -p /root/.pip/ \
	&& echo root:root |chpasswd \
	&& sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/g' /etc/ssh/sshd_config \
	&& cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
	&& localedef -i zh_CN -c -f UTF-8 -A /usr/share/locale/locale.alias zh_CN.UTF-8 \
	&& export LANG=zh_CN.utf8 \
	&& export LC_ALL=zh_CN.UTF-8

COPY pip.conf /root/.pip/pip.conf
COPY .vimrc /root/.vimrc
 
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]

cat > ~/.pip/pip.conf << EOF
[global]
timeout=6000
index-url =  http://pypi.douban.com/simple/
[install]
use-mirrors=true
mirrors = http://pypi.douban.com/simple/
trusted-host =  pypi.douban.com
EOF

cat > ~/.vimrc << EOF
if has('mouse')
  set mouse-=a
endif

syntax on
set paste
set hlsearch
set showmatch
set completeopt=longest,preview,menu
set fileencodings=utf-8

set termencoding=utf-8

set langmenu=zh_CN.UTF-8
syntax enable
set helplang=cn
set expandtab
set tabstop=4
set si
set softtabstop=4
EOF

基于centos7自己搭建Python的Base镜像

FROM centos:7

ARG PYTHON_VERSION=3.8.12
RUN mkdir -p /tmp/python-src/Python-$PYTHON_VERSION
WORKDIR /tmp/python-src/Python-$PYTHON_VERSION
RUN yum check-update || true \
    && yum update -y \
    && yum -y groupinstall "Development tools" \
    && yum -y install wget zlib-devel bzip2-devel openssl-devel ncurses-devel libxml2-devel libxslt-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libjpeg-devel passwd openssh-server vim kde-l10n-Chinese telnet net-tools \
    && mkdir /run/sshd \
    && mkdir -p /root/.pip/ \
    && echo root:root |chpasswd \
    && sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/g' /etc/ssh/sshd_config \
    && cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
    && localedef -i zh_CN -c -f UTF-8 -A /usr/share/locale/locale.alias zh_CN.UTF-8 \
    && wget --no-check-certificate https://www.python.org/ftp/python/$PYTHON_VERSION/Python-$PYTHON_VERSION.tgz -O /tmp/python.tgz \
    && tar -zxvf /tmp/python.tgz -C /tmp/python-src \
    && ./configure --prefix=/usr/local LDFLAGS="-Wl,-rpath /usr/local/lib" --with-ensurepip=install --enable-optimizations --with-lto \
    && make \
    && make altinstall \
    && rm -rf /tmp/python-src /tmp/python.tgz \
    && yum -y groupremove "Development tools" \
    && yum -y remove wget zlib-devel bzip2-devel openssl-devel ncurses-devel libxml2-devel libxslt-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libjpeg-devel \
    && yum clean all \
    && localedef -c -f UTF-8 -i zh_CN zh_CN.utf8 \
    && export LC_ALL=zh_CN.UTF-8

COPY pip.conf /root/.pip/pip.conf
COPY .vimrc /root/.vimrc

EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]/

参考
vim配置
Docker 操作：基于 Centos7 构建 python3 镜像