[DevOps] ์™œ Docker๋Š” ์ปจํ…Œ์ด๋„ˆ ๋นŒ๋“œ ๋„๊ตฌ ์„ ํƒ์ง€์—์„œ ์ ์  ๋ฐฐ์ œ๋ ๊นŒ?

์ตœ๊ทผ ํšŒ์‚ฌ์˜ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ๋ฐฐํฌ ๋ฐฉ์‹์ด ๋ณ€๊ฒฝ๋˜๋ฉด์„œ ํšŒ์‚ฌ์—์„œ ๋งก๊ณ  ์žˆ๋Š” ํ”„๋กœ์ ํŠธ ๋˜ํ•œ ๋ณ„๋„์˜ ๋ฐฐํฌ ๋„๊ตฌ๋ฅผ ์‚ฌ์šฉํ•˜์ง€ ์•Š๊ณ , ํ˜•์ƒ ๊ด€๋ฆฌ ์‹œ์Šคํ…œ(Github, Gitlab)์˜ ๋ฐฐํฌ ๋„๊ตฌ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๋ฐฉ์‹์œผ๋กœ ๋งˆ์ด๊ทธ๋ ˆ์ด์…˜ ํ•˜๊ฒŒ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ๋ฐ, ๋งˆ์ด๊ทธ๋ ˆ์ด์…˜ํ•˜๋ฉด์„œ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋Š” CI/CD ๋„๊ตฌ๊ฐ€ Docker executor๊ฐ€ ์•„๋‹Œ k8s executor๋ฅผ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ์—ˆ๊ณ , ์—ฌ๊ธฐ์„œ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์„ ์ปจํ…Œ์ด๋„ˆ๋กœ ๋นŒ๋“œํ•  ๋•Œ ์‚ฌ์šฉํ•˜๋Š” ๋„๊ตฌ ๋˜ํ•œ Docker๊ฐ€ ์•„๋‹Œ Kaniko๋ฅผ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋Š” ์ ์„ ์•Œ๊ฒŒ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. Docker์˜ ๋‹จ์  ๊ฐ€๋” Docker๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด์„œ ์ด๋Ÿฐ ์ƒ๊ฐ์ด ์ข…์ข… ๋“ค์—ˆ์Šต๋‹ˆ๋‹ค. ์ปจํ…Œ์ด๋„ˆ ์ด๋ฏธ์ง€๋ฅผ ๋นŒ๋“œํ•˜๊ณ  ๋ฐฐํฌํ•˜๊ธฐ ์œ„ํ•ด, ๊ตณ์ด Docker Engine์„ ์„ค์น˜ํ•ด์•ผ ํ• ๊นŒ? Docker์—์„œ๋Š” ๋นŒ๋“œ๋งŒ์„ ์œ„ํ•œ SDK๋Š” ..