alpine安装sshd/ssh server

1、下载alpine镜像

[root@docker43 ~] # docker pull alpine
Using default tag: latest
Trying to pull repository docker.io /library/alpine  ...
latest: Pulling from docker.io /library/alpine
4fe2ade4980c: Pull complete
Digest: sha256:621c2f39f8133acb8e64023a94dbdf0d5ca81896102b9e57c0dc184cadaf5528
Status: Downloaded newer image  for  docker.io /alpine :latest
[root@docker43 ~] # docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io /alpine     latest              196d12cf6ab1        3 weeks ago         4.41 MB

2、编写dockerfile

2.1.创建一个工作目录

[root@docker43 ~] # cd /opt/
[root@docker43 opt] # mkdir alpine_ssh && cd alpine_ssh && touch Dockerfile

[root@docker43 alpine_ssh] # ll
总用量 4
-rw-r--r-- 1 root root 654 10月  3 23:21 Dockerfile

2.2.编写Dockerfile

# 指定创建的基础镜像
FROM alpine

# 作者描述信息
MAINTAINER alpine_sshd ([email protected])

# 替换阿里云的源
RUN  echo  "http://mirrors.aliyun.com/alpine/latest-stable/main/"  >  /etc/apk/repositories
RUN  echo  "http://mirrors.aliyun.com/alpine/latest-stable/community/"  >>  /etc/apk/repositories

# 同步时间

# 更新源、安装openssh 并修改配置文件和生成key 并且同步时间
RUN apk update && \
    apk add --no-cache openssh tzdata && \
    cp  /usr/share/zoneinfo/Asia/Shanghai  /etc/localtime  && \
    sed  -i  "s/#PermitRootLogin.*/PermitRootLogin yes/g"  /etc/ssh/sshd_config  && \
      ssh-keygen -t dsa -P "" -f /etc/ssh/ssh_host_dsa_key && \
    ssh -keygen -t rsa -P  ""  -f  /etc/ssh/ssh_host_rsa_key  && \
    ssh -keygen -t ecdsa -P  ""  -f  /etc/ssh/ssh_host_ecdsa_key  && \
    ssh -keygen -t ed25519 -P  ""  -f  /etc/ssh/ssh_host_ed25519_key  && \
    echo  "root:admin"  | chpasswd

# 开放22端口
EXPOSE 22

# 执行ssh启动命令
CMD [ "/usr/sbin/sshd" ,  "-D" ]

2.3.创建镜像

# 在dockerfile所在的目录下
[root@docker43 alpine_ssh] # pwd
/opt/alpine_ssh
[root@docker43 alpine_ssh] # docker build -t alpine:sshd .

转载于:https://www.cnblogs.com/sunsky303/p/11543747.html