[Docker] ๋„์ปค ์ปจํ…Œ์ด๋„ˆ Bind Mount

2023. 2. 2. 13:36ยทCloud Engineering/Docker ๐Ÿณ
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  1. Bind Mount
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๋„์ปค์˜ ์ปจํ…Œ์ด๋„ˆ ๋‚ด์—์„œ ์ƒ์„ฑ๋˜๋Š” ๋ฐ์ดํ„ฐ๋Š” ๋Ÿฐํƒ€์ž„ ๋ฐ์ดํ„ฐ์ด๋‹ค. ์ฆ‰, ์ปจํ…Œ์ด๋„ˆ๊ฐ€ ์‚ญ์ œ๋˜๋ฉด ๋ฐ์ดํ„ฐ๋“ค๋„ ํ•จ๊ป˜ ์‚ญ์ œ๋œ๋‹ค. ๋”ฐ๋ผ์„œ ์˜๊ตฌ์ ์ธ ๋ชฉ์ ์œผ๋กœ ๋ฐ์ดํ„ฐ๋ฅผ ์ €์žฅํ•˜๊ณ  ์‹ถ๋‹ค๋ฉด ์ปจํ…Œ์ด๋„ˆ์— ์ €์žฅํ•˜๋Š” ๊ฒƒ์ด ์•„๋‹ˆ๋ผ, ์ปจํ…Œ์ด๋„ˆ์˜ ์™ธ๋ถ€ ๋ฉ”๋ชจ๋ฆฌ์— ๋งˆ์šดํŠธ ์‹œํ‚จ ํ›„ ๋ฉ”๋ชจ๋ฆฌ์— ์ €์žฅ์„ ํ•˜๋Š” ๊ฒƒ์„ ๊ถŒํ•œ๋‹ค. 

 

Bind Mount

ํ˜ธ์ŠคํŠธ์˜ ํŒŒ์ผ ๋””๋ ‰ํ† ๋ฆฌ์™€ ์ปจํ…Œ์ด๋„ˆ์˜ ๋””๋ ‰ํ† ๋ฆฌ๋ฅผ ์—ฐ๊ฒฐํ•˜๋Š” ๋ฐฉ์‹์ด๋‹ค. ๊ทธ๋ ‡์ง€๋งŒ Bind Mount๋Š” ๋„์ปค์— ์˜ํ•ด์„œ ๊ด€๋ฆฌ๋˜์ง€ ์•Š์œผ๋ฉฐ ํ˜ธ์ŠคํŠธ์˜ ํŒŒ์ผ์‹œ์Šคํ…œ์— ๋Œ€ํ•ด ์˜์กด์ ์ด๋‹ค. ๋˜ํ•œ ํ˜ธ์ŠคํŠธ์˜ ๋ฏผ๊ฐํ•œ ํŒŒ์ผ๊นŒ์ง€ ์ ‘๊ทผ๊ฐ€๋Šฅํ•˜๋ฏ€๋กœ ๋ณด์•ˆ์— ์ทจ์•ฝํ•˜๋‹ค๋Š” ๋ฌธ์ œ์ ์ด ์žˆ๋‹ค. 

Bind Mount ๋Š” ์ปจํ…Œ์ด๋„ˆ๋ฅผ ์ƒ์„ฑํ•˜๊ฑฐ๋‚˜ ์‹คํ–‰์„ ์‹œ์ž‘ํ•  ๋•Œ ์—ฐ๊ฒฐํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ ์ด๋ฏธ ์‹คํ–‰์ค‘์ธ ์ปจํ…Œ์ด๋„ˆ์—๋Š” Bind Mount๋กœ ์—ฐ๊ฒฐ์‹œํ‚ฌ ์ˆ˜ ์—†๋‹ค. ๋ช…๋ น์–ด๋Š” docker run ๋ช…๋ น์–ด ์ค‘์—์„œ -v ์˜ต์…˜์„ ์‚ฌ์šฉํ•œ๋‹ค. --volume ์˜ต์…˜์„ ์จ๋„ ๋œ๋‹ค. 

$ docker container run -dt -v HOST_PATH:CONTAINER_PATH โ€”name CONTAINER_NAME_IMAGE_REPO:TAG

[์˜ˆ์‹œ]

[user@localhost ~]$ docker run -dt -v /home/user/data1:/data --name centos7-2 centos:7

ํ˜ธ์ŠคํŠธ์˜ /home/user/data1 ๋””๋ ‰ํ† ๋ฆฌ์™€ centos7-2 ์ปจํ…Œ์ด๋„ˆ์˜ /data ๋””๋ ‰ํ† ๋ฆฌ๋ฅผ Bind Mount ํ•œ๋‹ค. 

ํ˜ธ์ŠคํŠธ์˜ /home/user/data1 ๋””๋ ‰ํ† ๋ฆฌ์—์„œ ํŒŒ์ผ์„ ์ƒ์„ฑํ•ด๋ณด์ž. 

[user@localhost data1]$ echo "from host docker" > file2
[user@localhost data1]$ ls
file1  file2

๊ทธ๋ฆฌ๊ณ  ์ปจํ…Œ์ด๋„ˆ์™€ ์ž˜ ์—ฐ๊ฒฐ๋˜์—ˆ๋Š”์ง€, centos7-2 ์ปจํ…Œ์ด๋„ˆ์˜ /data ๋””๋ ‰ํ† ๋ฆฌ์—์„œ ํ™•์ธํ•ด๋ณธ๋‹ค. 

[root@426d7027d8fe data]# ls -l
total 8
-rw-r--r--. 1 root root 25 Feb  2 02:14 file1
-rw-rw-r--. 1 1000 1000 17 Feb  2 02:17 file2

์ปจํ…Œ์ด๋„ˆ์—์„œ file2๋ฅผ ์ˆ˜์ •ํ•œ๋‹ค. 

[root@426d7027d8fe data]# echo "docer container centos7-2" >> file2

ํ˜ธ์ŠคํŠธ์—์„œ๋„ ์ˆ˜์ •๋œ ๋‚ด์šฉ์ด ์ž˜ ๋ฐ˜์˜๋˜์—ˆ๋Š”์ง€ ํ™•์ธํ•œ๋‹ค. 

[user@localhost data1]$ cat file2
from host docker
docer container centos7-2
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  1. Bind Mount
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[Docker] ๋„์ปค ์ปจํ…Œ์ด๋„ˆ Bind Mount
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