Docker Ubuntu VM 만들기

image 다운로드

 

[root@localhost admin]# docker pull ubuntu:16.04
Trying to pull repository docker.io/library/ubuntu ... 
16.04: Pulling from docker.io/library/ubuntu
fe703b657a32: Pull complete 
f9df1fafd224: Pull complete 
a645a4b887f9: Pull complete 
57db7fe0b522: Pull complete 
Digest: sha256:e9938f45e51d9ff46e2b05a62e0546d0f07489b7f22fbc5288defe760599e38a
Status: Downloaded newer image for docker.io/ubuntu:16.04

docker run

[root@localhost admin]# docker run -dt ubuntu:16.04
WARNING: IPv4 forwarding is disabled. Networking will not work.
5e7a6eadc27aed0e6c3184502e2ae017715b548b51aab857e4ec25a41bbefd44
[root@localhost admin]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
5e7a6eadc27a        ubuntu:16.04        "/bin/bash"         10 seconds ago      Up 8 seconds                            gracious_edison

[root@localhost etc]# docker exec -it cocky_einstein /bin/bash

Networking will no work

etc/sysctl.conf

[root@localhost admin]# cd /etc/
[root@localhost etc]# vi sysctl.conf 
[root@localhost etc]# pwd
/etc
[root@localhost etc]# systemctl restart network

이하 vi editor

# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
#
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
#
# For more information, see sysctl.conf(5) and sysctl.d(5).
net.ipv4.ip_forward=1 # 옆에 추가

ubuntu 이미지 만들기

[root@localhost etc]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
25a922f6ae15        ubuntu:16.04        "/bin/bash"         36 seconds ago      Up 34 seconds                           cocky_einstein

[root@localhost etc]# docker exec -it cocky_einstein /bin/bash

apt-get

root@25a922f6ae15:/# apt-get update
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB]
Get:2 http://archive.ubuntu.com/ubuntu xenial InRelease [247 kB]
Get:3 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages [1075 kB]
Get:4 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]
Get:5 http://archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]        
Get:6 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages [1558 kB]       
Get:7 http://security.ubuntu.com/ubuntu xenial-security/restricted amd64 Packages [12.7 kB]
Get:8 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages [621 kB]
Get:9 http://security.ubuntu.com/ubuntu xenial-security/multiverse amd64 Packages [6282 B]
Get:10 http://archive.ubuntu.com/ubuntu xenial/restricted amd64 Packages [14.1 kB]
Get:11 http://archive.ubuntu.com/ubuntu xenial/universe amd64 Packages [9827 kB]
Get:12 http://archive.ubuntu.com/ubuntu xenial/multiverse amd64 Packages [176 kB]
Get:13 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [1444 kB]
Get:14 http://archive.ubuntu.com/ubuntu xenial-updates/restricted amd64 Packages [13.1 kB]
Get:15 http://archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [1024 kB]
Get:16 http://archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 Packages [19.3 kB]
Get:17 http://archive.ubuntu.com/ubuntu xenial-backports/main amd64 Packages [7942 B]
Get:18 http://archive.ubuntu.com/ubuntu xenial-backports/universe amd64 Packages [8807 B]
Fetched 16.4 MB in 6s (2637 kB/s)                                                                                                                                                                                                                                          
Reading package lists... Done

ssh install

root@25a922f6ae15:/# apt-get install net-tools
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  net-tools
0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.
Need to get 175 kB of archives.
After this operation, 725 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu xenial/main amd64 net-tools amd64 1.60-26ubuntu1 [175 kB]
Fetched 175 kB in 1s (97.8 kB/s)    
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package net-tools.
(Reading database ... 4781 files and directories currently installed.)
Preparing to unpack .../net-tools_1.60-26ubuntu1_amd64.deb ...
Unpacking net-tools (1.60-26ubuntu1) ...
Setting up net-tools (1.60-26ubuntu1) ...
root@25a922f6ae15:/# 

root@25a922f6ae15:/# apt-get install openssh-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done

root@25a922f6ae15:/# apt-get install vim
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  libgpm2 libpython3.5 vim-common vim-runtime

root@25a922f6ae15:/# cd /etc/ssh
root@25a922f6ae15:/etc/ssh# ls
moduli  ssh_config  ssh_host_dsa_key  ssh_host_dsa_key.pub  ssh_host_ecdsa_key  ssh_host_ecdsa_key.pub  ssh_host_ed25519_key  ssh_host_ed25519_key.pub  ssh_host_rsa_key  ssh_host_rsa_key.pub  ssh_import_id  sshd_config
root@25a922f6ae15:/etc/ssh# vi sshd_config 

PermitRootLogin yes

 

# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication yes
#PermitEmptyPasswords no

root@25a922f6ae15:/etc/ssh# passwd root
Enter new UNIX password: 
Retype new UNIX password: 
passwd: password updated successfully
root@25a922f6ae15:/etc/ssh# service ssh start
 * Starting OpenBSD Secure Shell server sshd                                                                                                                                                                                                                         [ OK ] 
root@25a922f6ae15:/etc/ssh# netstat -tlnp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      3435/sshd       
tcp6       0      0 :::22                   :::*                    LISTEN      3435/sshd       
root@25a922f6ae15:/etc/ssh# exit

docker 이미지 생성

[root@localhost etc]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
25a922f6ae15        ubuntu:16.04        "/bin/bash"         12 minutes ago      Up 12 minutes                           cocky_einstein
[root@localhost etc]# docker commit cocky_einstein ubuntudist:0.1
sha256:32220a3a668ba2c88dbb83471a51c62e4839bece27d7b08057b0b4f03579c39b

[root@localhost etc]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
ubuntudist          0.1                 32220a3a668b        17 seconds ago      239 MB
docker.io/nginx     latest              6678c7c2e56c        3 weeks ago         127 MB
docker.io/ubuntu    16.04               77be327e4b63        4 weeks ago         124 MB
docker.io/centos    centos7             5e35e350aded        4 months ago        203 MB
[root@localhost etc]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
25a922f6ae15        ubuntu:16.04        "/bin/bash"         14 minutes ago      Up 14 minutes                           cocky_einstein
[root@localhost etc]# docker run --restart always --name one -dt -p 10001:22 -p 10002:80 -p 10003:443 -p 10004:8080 -p 10005:8090 ubuntudist:0.1
646c193851ab631034f30611dac1af40f68dcb7b907c7d30192a03f480174502
[root@localhost etc]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                                                                                                                    NAMES
646c193851ab        ubuntudist:0.1      "/bin/bash"         5 seconds ago       Up 2 seconds        0.0.0.0:10001->22/tcp, 0.0.0.0:10002->80/tcp, 0.0.0.0:10003->443/tcp, 0.0.0.0:10004->8080/tcp, 0.0.0.0:10005->8090/tcp   one

Docker file 생성

상위는 이미지로만 유지되기 때문에 Docker file로 생성해서 유지한다

FROM ubuntu:16.04

MAINTAINER steven;someone@naver.com

RUN apt-get update
RUN apt-get -y install net-tools openssh-server vim
RUN echo 'root:dkssud1!' | chpasswd
RUN sed -i 's/PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config


EXPOSE 22
EXPOSE 80
EXPOSE 443
EXPOSE 8080
EXPOSE 8090

CMD ["/bin/bash"]

ENTRYPOINT service ssh restart && bash

build

$ docker build --tag test:0.2 .

 

command

docker run --restart always --name two -dt -p 10011:22 -p 10012:80 -p 10013:443 -p 10014:8080 -p 10015:8090 test

 

최근 ssh의 config가 변동 된거 같다. 다음과 같이 변경 해야 한다.

FROM ubuntu:18.04

MAINTAINER steven;theyoung2002@naver.com

RUN apt-get update
RUN apt-get -y install net-tools openssh-server vim
RUN echo 'root:dkssud1!' | chpasswd
RUN sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config
RUN sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config

EXPOSE 22
EXPOSE 80
EXPOSE 443
EXPOSE 8080
EXPOSE 8090

CMD ["/bin/bash"]

ENTRYPOINT service ssh restart && bash

 

windows10 docker에서 bash 접근을 위해서는 다음과 같이 해야 한다.

$ winpty docker exec -it aosp bin/bash