기존에 테스트용으로 사용하던 서버위에 설치

서버 환경 : Amazon Linux 2

서버 스펙 : t3.micro

안녕하세요 저번시간에 Container와 Docker에 대해서 간략하게 알아보는 시간을 가졌는데요

지난 시간 글 [Container 시리즈] 00. Container/ Docker란 뭔가요?

아무래도 엔지니어분들은 직접 명령어를 쳐야 몸이 풀리기때문에

도커 설치하는 법 부터 가져왔습니다!

자 한번 설치를 시작해볼까요???



1. 테스트 서버를 간만에 접속해서 업데이트를 먼저 해줍니다.

$ sudo yum -y upgrade

[ec2-user@ip-172-20-1-221 ~]$ sudo yum -y upgrade 
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
amzn2-core                                                                                                  | 2.4 kB  00:00:00     
amzn2extra-docker                                                                                           | 1.3 kB  00:00:00     
Resolving Dependencies
--> Running transaction check
---> Package amazon-ssm-agent.x86_64 0:2.3.662.0-1.amzn2 will be updated
---> Package amazon-ssm-agent.x86_64 0:2.3.714.0-1.amzn2 will be an update
---> Package at.x86_64 0:3.1.13-23.amzn2 will be updated

...

  sysstat.x86_64 0:10.1.5-18.amzn2.0.1                                  systemd.x86_64 0:219-57.amzn2.0.12                         
  systemd-libs.x86_64 0:219-57.amzn2.0.12                               systemd-sysv.x86_64 0:219-57.amzn2.0.12                    
  systemtap-runtime.x86_64 0:4.2-1.amzn2.0.1                            tcpdump.x86_64 14:4.9.2-4.amzn2.1                          
  yum.noarch 0:3.4.3-158.amzn2.0.3                                     

Replaced:
  kpatch.noarch 0:0.4.0-3.amzn2                               rpm-python.x86_64 0:4.11.3-25.amzn2.0.3                              

Complete!


2. Docker를 설치해볼차례!

$ sudo amazon-linux-extras install -y docker

[ec2-user@ip-172-20-1-221 ~]$ sudo amazon-linux-extras install -y docker
Installing docker
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
Cleaning repos: amzn2-core amzn2extra-docker
10 metadata files removed
4 sqlite files removed
0 metadata files removed
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
amzn2-core                                                                                                  | 2.4 kB  00:00:00     
amzn2extra-docker                                                                                           | 1.3 kB  00:00:00     
(1/4): amzn2-core/2/x86_64/updateinfo                                                                       | 187 kB  00:00:00     
(2/4): amzn2-core/2/x86_64/group_gz                                                                         | 2.5 kB  00:00:00    

...

===================================================================================================================================
 Package                 Arch                Version                                          Repository                      Size
===================================================================================================================================
Installing:
 docker                  x86_64              18.09.9ce-2.amzn2                                amzn2extra-docker               30 M
Installing for dependencies:
 containerd              x86_64              1.2.6-1.amzn2                                    amzn2extra-docker               20 M
 libcgroup               x86_64              0.41-21.amzn2                                    amzn2-core                      66 k
 pigz                    x86_64              2.3.4-1.amzn2.0.1                                amzn2-core                      81 k
 runc                    x86_64              1.0.0-0.1.20190510.git2b18fe1.amzn2              amzn2extra-docker              2.0 M

Transaction Summary
===================================================================================================================================
Install  1 Package (+4 Dependent packages)

Total download size: 51 M
Installed size: 214 M
Downloading packages:
(1/5): libcgroup-0.41-21.amzn2.x86_64.rpm                                                                   |  66 kB  00:00:00     
(2/5): pigz-2.3.4-1.amzn2.0.1.x86_64.rpm                                                                    |  81 kB  00:00:00     
(3/5): containerd-1.2.6-1.amzn2.x86_64.rpm                                                                  |  20 MB  00:00:00     
(4/5): runc-1.0.0-0.1.20190510.git2b18fe1.amzn2.x86_64.rpm                                                  | 2.0 MB  00:00:00     
(5/5): docker-18.09.9ce-2.amzn2.x86_64.rpm                                                                  |  30 MB  00:00:00     
-----------------------------------------------------------------------------------------------------------------------------------
Total                                                                                               75 MB/s |  51 MB  00:00:00     

...


        [ =1.8.0_192  =1.8.0_202  =1.8.0_212  =1.8.0_222  =1.8.0_232
          =1.8.0_242 ]
 28  firecracker              available    [ =0.11 ]
 29  golang1.11               available    \
        [ =1.11.3  =1.11.11  =1.11.13 ]
 30  squid4                   available    [ =4 ]
 31  php7.3                   available    \
        [ =7.3.2  =7.3.3  =7.3.4  =7.3.6  =7.3.8  =7.3.9  =7.3.10
          =7.3.11  =7.3.13 ]
 32  lustre2.10               available    [ =2.10.5  =2.10.8 ]
 33  java-openjdk11           available    [ =11 ]
 34  lynis                    available    [ =stable ]
 35  kernel-ng                available    [ =stable ]
 36  BCC                      available    [ =0.x ]
 37  mono                     available    [ =5.x ]
 38  nginx1                   available    [ =stable ]
 39  ruby2.6                  available    [ =2.6 ]
 40  mock                     available    [ =stable ]
 41  postgresql11             available    [ =11 ]
[ec2-user@ip-172-20-1-221 ~]$ 

# 버전확인
[ec2-user@ip-172-20-1-221 ~]$ docker --version
Docker version 18.09.9-ce, build 039a7df
[ec2-user@ip-172-20-1-221 ~]$ 


3. 설치를 했으니 돌려봅시다.

$ sudo systemctl start docker

[ec2-user@ip-172-20-1-221 ~]$ sudo systemctl start docker

[ec2-user@ip-172-20-1-221 ~]$ ps -ef | grep docker
root     22846     1  1 08:23 ?        00:00:00 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock --default-ulimit nofile=1024:4096
ec2-user 23025  4157  0 08:23 pts/0    00:00:00 grep --color=auto docker

4. ec2-user에게 권한을..

$ sudo usermod -aG docker ec2-user

[ec2-user@ip-172-20-1-221 ~]$ sudo systemctl start docker

[ec2-user@ip-172-20-1-221 ~]$ ps -ef | grep docker
root     22846     1  1 08:23 ?        00:00:00 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock --default-ulimit nofile=1024:4096
ec2-user 23025  4157  0 08:23 pts/0    00:00:00 grep --color=auto docker

# 적용을 위하여 다시 ssh 재접속을 합니다
# exit로 나간뒤 접속 ㄱㄱ
# sudo 명령어 없이 실행해봅니다.

[ec2-user@ip-172-20-1-221 ~]$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
[ec2-user@ip-172-20-1-221 ~]$ 

+ 번외로 docker는 Server-Client 구조입니다.

# docker verision으로 각각의 버전확인 가능
[kbseo@ip-172-20-1-221 ~]$ docker version
Client:
 Version:           18.09.9-ce
 API version:       1.39
 Go version:        go1.10.3
 Git commit:        039a7df
 Built:             Fri Nov  1 19:26:49 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server:
 Engine:
  Version:          18.09.9-ce
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.3
  Git commit:       039a7df
  Built:            Fri Nov  1 19:28:24 2019
  OS/Arch:          linux/amd64
  Experimental:     false

설치를 완료하였으니

본격적으로 도커 사용법에 대해 알아보도록 하겠습니다!

다음 글에서 계속할께요....

kbseo's profile image

kbseo

2020-03-03

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