vscode remoteSSH용 docker 생성

sudo usermod -aG docker $USER
newgrp docker

FROM ubuntu:24.04

# Install required packages for minimal build environment and requested tools
RUN apt-get update && \
    apt-get install -y \
    build-essential \
    cmake \
    clang-tidy \
    git \
    vim \
    sudo \
    zsh \
    openssh-server \
    locales && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Configure locale
RUN locale-gen en_US.UTF-8
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8

# Create user and group (여기에서 1016 은 기존 서버의 userid 번호를 써줍니다.)
RUN groupadd -g 1016 lionelj && \
    useradd -u 1016 -g 1016 -m -s /bin/zsh lionelj && \
    usermod -aG sudo lionelj

# Configure SSH
RUN ssh-keygen -A && \
    chmod 600 /etc/ssh/ssh_host_* && \
    chown root:root /etc/ssh/ssh_host_* && \
    mkdir -p /var/run/sshd && \
    chmod 0755 /var/run/sshd && \
    echo "lionelj ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/lionelj && \
    chmod 0440 /etc/sudoers.d/lionelj && \
    sed -i 's/#Port 22/Port 2222/' /etc/ssh/sshd_config && \
    echo "PasswordAuthentication yes" >> /etc/ssh/sshd_config && \
    echo 'lionelj:qwer' | chpasswd

# Expose SSH port
EXPOSE 2222

# Start SSH server in background and keep container running
RUN echo '#!/bin/bash\n\
    sudo /usr/sbin/sshd\n\
    if [ $? -ne 0 ]; then\n\
        echo "Failed to start sshd"\n\
        exit 1\n\
    fi\n\
    tail -f /dev/null' > /start.sh && \
    chmod +x /start.sh

CMD ["/start.sh"]

docker build -t lionel-build-env:v1 .

# 잘 성공하면 다음과 같이 나옴
docker images

REPOSITORY                                           TAG            IMAGE ID       CREATED         SIZE
lionel-build-env                                     v1             f061ec87e272   8 minutes ago   1.6GB

 version: '3.3'

 services:
 lio-container:
 	image: lionel-build-env:v5
 	container_name: lio-container
 	user: 1016:1016
 	networks:
 	my_network:
 		ipv4_address: 172.24.0.2
 	ports:
 	- "2222:2222"
 	volumes:
 	- /home/lionelj:/home/lionelj
 	- /opt:/opt
 	command: /start.sh

 networks:
 my_network:
 	driver: bridge
 	ipam:
 	driver: default
 	config:
 		- subnet: 172.24.0.0/24

docker-compose up -d

ssh -p 2222 lionelj@localhost

docker exec -it lio-container /bin/zsh

docker-compose down

sudo docker inspect dc6d671ba3b0 | grep IPAddress
		"SecondaryIPAddresses": null,
		"IPAddress": "172.17.0.2",
				"IPAddress": "172.17.0.2", <== 이 주소를 사용 합니다.

ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
	link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
	inet 127.0.0.1/8 scope host lo
	   valid_lft forever preferred_lft forever
1839: eth0@if1840: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
	link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff link-netnsid 0
	inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0  <== 이 주소를 사용 합니다.
	   valid_lft forever preferred_lft forever

ssh -L 2222:172.17.0.2:2222 lionelj@<호스트_IP>
ssh -L 2222:172.17.0.2:2222 lionelj@192.168.71.41

C:\Users\lionel.j\.ssh\config 파일을 열고

Host heimdall
  HostName localhost
  User lionelj
  Port 2222

이렇게 추가 후
vscode 에서 Remote-SSH: Connect to Host...로 heimdall 로 접속.