{"id":11560,"date":"2022-05-05T15:21:08","date_gmt":"2022-05-05T08:21:08","guid":{"rendered":"https:\/\/hostify.vn\/blog\/?p=11560"},"modified":"2022-05-05T15:21:08","modified_gmt":"2022-05-05T08:21:08","slug":"docker-la-gi-kien-thuc-co-ban-ve-docker","status":"publish","type":"post","link":"https:\/\/www.hostify.vn\/blog\/docker-la-gi-kien-thuc-co-ban-ve-docker\/","title":{"rendered":"Docker l\u00e0 g\u00ec? Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 Docker"},"content":{"rendered":"

Docker l\u00e0 g\u00ec?<\/a><\/h2>\n

Docker<\/strong> l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng cung c\u1ea5p cho c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean c\u00e1ch building, deploying v\u00e0 running \u1ee9ng d\u1ee5ng m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng b\u1eb1ng bi\u1ec7n ph\u00e1p s\u1eed d\u1ee5ng containers (n\u1ec1n t\u1ea3ng \u1ea3o h\u00f3a). C\u00e1c containers<\/a><\/strong> n\u00e0y cho ph\u00e9p b\u1ea1n \u0111\u00f3ng g\u00f3i t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n c\u1ea7n thi\u1ebft v\u00e0 ph\u1ee5 thu\u1ed9c c\u1ee7a \u1ee9ng d\u1ee5ng nh\u01b0 m\u1ed9t th\u01b0 vi\u1ec7n v\u00e0 g\u1eedi nh\u1eefng ph\u1ea7n \u0111\u00f3 d\u01b0\u1edbi d\u1ea1ng m\u1ed9t package.<\/p>\n

Docker<\/strong><\/em> ban \u0111\u1ea7u \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng\u00a0Python\u00a0nh\u01b0ng hi\u1ec7n t\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n sang vi\u1ebft b\u1eb1ng Golang.<\/p>\n

C\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 Docker<\/h2>\n

C\u00e1c c\u00f4ng c\u1ee5 v\u00e0 \u0111i\u1ec1u kho\u1ea3n c\u1ee7a Docker<\/h3>\n

M\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef b\u1ea1n s\u1ebd g\u1eb7p khi s\u1eed d\u1ee5ng Docker bao g\u1ed3m:<\/p>\n

DockerFile<\/h4>\n

Dockerfile l\u00e0 t\u1ec7p v\u0103n b\u1ea3n \u0111\u01a1n gi\u1ea3n ch\u1ee9a h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch t\u1ea1o h\u00ecnh \u1ea3nh v\u00f9ng ch\u1ee9a Docker. DockerFile t\u1ef1 \u0111\u1ed9ng h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh \u1ea3nh Docker. V\u1ec1 c\u01a1 b\u1ea3n, DockerFile l\u00e0 m\u1ed9t danh s\u00e1ch c\u00e1c h\u01b0\u1edbng d\u1eabn giao di\u1ec7n d\u00f2ng l\u1ec7nh (CLI) m\u00e0 Docker Engine s\u1ebd ch\u1ea1y \u0111\u1ec3 l\u1eafp r\u00e1p h\u00ecnh \u1ea3nh.<\/p>\n

Docker Hub<\/h4>\n
\"Docker

Docker Hub c\u00f3 ch\u1ee9a kho\u1ea3ng h\u01a1n 100.000 image container<\/p><\/div>\n

\u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 kho l\u01b0u tr\u1eef c\u00f4ng khai c\u1ee7a Docker image, hay n\u00f3 c\u00f2n c\u00f3 m\u1ed9t t\u00ean g\u1ecdi kh\u00e1c l\u00e0 \u201cth\u01b0 vi\u1ec7n v\u00e0 c\u1ed9ng \u0111\u1ed3ng l\u1edbn nh\u1ea5t th\u1ebf gi\u1edbi v\u1ec1 image container\u201d. Docker Hub c\u00f3 ch\u1ee9a kho\u1ea3ng h\u01a1n 100.000 image container, nh\u1eefng image container n\u00e0y \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p ph\u1ea7n m\u1ec1m th\u01b0\u01a1ng m\u1ea1i, c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00e1 nh\u00e2n, c\u00e1c d\u1ef1 \u00e1n c\u00f3 m\u00e3 ngu\u1ed3n m\u1edf.<\/p>\n

Docker container<\/h4>\n

Docker container l\u00e0 phi\u00ean b\u1ea3n live hay running instance c\u1ee7a m\u1ed9t Docker image. C\u1ee5 th\u1ec3, ta th\u1ea5y docker image l\u00e0 file d\u00f9ng \u0111\u1ec3 \u0111\u1ecdc trong khi \u0111\u00f3 docker container l\u00e0 phi\u00ean b\u1ea3n live, executable m\u00e0 t\u1ea1i \u0111\u00e2y ng\u01b0\u1eddi d\u00f9ng ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ch\u00fang. B\u00ean c\u1ea1nh \u0111\u00f3, qu\u1ea3n tr\u1ecb vi\u00ean ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u, quy \u0111\u1ecbnh m\u00e0 h\u1ecd mong mu\u1ed1n. T\u1ea1i docker container,<\/strong> l\u1eadp tr\u00ecnh vi\u00ean ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc nh\u01b0 create, start, stop, move or delete container d\u1ef1a tr\u00ean Docker API ho\u1eb7c Docker CLI.<\/p>\n

Docker Client<\/h4>\n

\u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 ng\u01b0\u1eddi s\u1eed d\u1ee5ng giao ti\u1ebfp v\u1edbi Docker host. Docker host ch\u00ednh l\u00e0 th\u00e0nh ph\u1ea7n m\u00e0 th\u00f4ng qua command line c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta k\u1ebft n\u1ed1i, giao ti\u1ebfp v\u1edbi Docker host. Th\u00f4ng t\u01b0\u1eddng, Docker client s\u1ebd th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch th\u00f4ng qua REST API g\u1eedi l\u1ec7nh t\u1edbi Docker Daemon.<\/p>\n

Docker Daemon<\/h4>\n

\u0110\u00e2y l\u00e0 n\u01a1i l\u1eafng nghe c\u00e1c y\u00eau c\u1ea7u \u0111\u1ebfn t\u1eeb Docker client v\u1edbi m\u1ee5c \u0111\u00edch qu\u1ea3n l\u00fd c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng th\u00f4ng qua REST API nh\u01b0 image, container, Network hay Volumes. B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c Docker Daemon c\u0169ng giao ti\u1ebfp v\u1edbi nhau nh\u1eb1m qu\u1ea3n l\u00fd c\u00e1c Docker Services.<\/p>\n

Docker Engine<\/h4>\n

N\u1ebfu b\u1ea1n ch\u1ec9 ch\u1ea1y m\u1ed9t v\u00e0i v\u00f9ng ch\u1ee9a th\u00ec kh\u00e1 \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 qu\u1ea3n l\u00fd \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n trong Docker Engine, th\u1eddi gian ch\u1ea1y tr\u00ean th\u1ef1c t\u1ebf c\u1ee7a ng\u00e0nh. Nh\u01b0ng n\u1ebfu vi\u1ec7c tri\u1ec3n khai c\u1ee7a b\u1ea1n g\u1ed3m h\u00e0ng ngh\u00ecn v\u00f9ng ch\u1ee9a v\u00e0 h\u00e0ng tr\u0103m d\u1ecbch v\u1ee5, th\u00ec g\u1ea7n nh\u01b0 kh\u00f4ng th\u1ec3 qu\u1ea3n l\u00fd quy tr\u00ecnh l\u00e0m vi\u1ec7c \u0111\u00f3 m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 kh\u00e1c. Docker Engine<\/strong> c\u00f3 ch\u1ee9c n\u0103ng nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 d\u00f9ng \u0111\u1ec3 \u0111\u00f3ng g\u00f3i \u1ee9ng d\u1ee5ng.<\/p>\n

Docker Compose<\/h4>\n
\"Docker

Docker Compose<\/p><\/div>\n

Th\u1ef1c hi\u1ec7n ch\u1ea1y \u1ee9ng d\u1ee5ng th\u00f4ng qua c\u00e1c \u0111\u1ecbnh ngh\u0129a c\u1ea5u h\u00ecnh c\u00e1c Docker Container<\/strong>, th\u1ef1c hi\u1ec7n th\u00f4ng qua file c\u1ea5u h\u00ecnh<\/p>\n

S\u1eed d\u1ee5ng Docker Compose<\/strong>, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng li\u00ean t\u1ee5c \u0111\u1ec3 l\u01b0u tr\u1eef, ch\u1ec9 \u0111\u1ecbnh c\u00e1c n\u00fat c\u01a1 s\u1edf, l\u1eadp t\u00e0i li\u1ec7u v\u00e0 \u0111\u1ecbnh c\u1ea5u h\u00ecnh c\u00e1c ph\u1ee5 thu\u1ed9c d\u1ecbch v\u1ee5.<\/p>\n

Quy tr\u00ecnh th\u1ef1c hi\u1ec7n c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng Docker\u00a0<\/h2>\n

M\u1ed9t h\u1ec7 th\u1ed1ng Docker th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c thi d\u1ef1a theo 3 b\u01b0\u1edbc ch\u00ednh nh\u01b0 sau:\u00a0<\/p>\n

B\u01b0\u1edbc 1: Build<\/h3>\n

Vi\u1ec7c \u0111\u1ea7u ti\u00ean b\u1ea1n c\u1ea7n l\u00e0m ch\u00ednh l\u00e0 t\u1ea1o m\u1ed9t dockerfile<\/strong> b\u1edfi n\u00f3 c\u00f3 ch\u1ee9a code m\u00e0 b\u1ea1n c\u1ea7n. B\u1ea1n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c dockerfile trong m\u1ed9t m\u00e1y \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i s\u1eb5n docker engine. Khi ho\u00e0n t\u1ea5t, b\u1ea1n s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c c\u00e1c containers c\u00f3 ch\u1ee9a \u1ee9ng d\u1ee5ng v\u00e0 b\u1ed9 th\u01b0 vi\u1ec7n c\u1ee7a ri\u00eang b\u1ea1n.<\/p>\n

\"Docker

Quy tr\u00ecnh th\u1ef1c hi\u1ec7n c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng Docker<\/p><\/div>\n

B\u01b0\u1edbc 2: Push<\/h3>\n

Khi \u0111\u00e3 c\u00f3 \u0111\u01b0\u1ee3c containers, b\u1ea1n th\u1ef1c hi\u1ec7n push container n\u00e0y l\u00ean cloud v\u00e0 l\u01b0u n\u00f3 ngay t\u1ea1i \u0111\u00f3.<\/p>\n

B\u01b0\u1edbc 3: Pull, Run<\/h3>\n

\u0110\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c container trong h\u1ec7 th\u1ed1ng docker, b\u1ea1n s\u1ebd c\u1ea7n k\u00e9o ch\u00fang v\u1ec1 m\u00e1y t\u00ednh \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t docker engine<\/strong> v\u00e0 sau \u0111\u00f3 ch\u1ea1y container \u0111\u1ec3 ho\u00e0n t\u1ea5t c\u00e1c b\u01b0\u1edbc.\u00a0<\/p>\n

V\u00ec sao n\u00ean s\u1eed d\u1ee5ng Docker?\u00a0<\/h2>\n

Docker l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 mang l\u1ea1i kh\u00e1 nhi\u1ec1u l\u1ee3i \u00edch cho qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng v\u00e0 developer. Gi\u00fap b\u1ea1n hi\u1ec3u h\u01a1n v\u1ec1 docker, ch\u00fang t\u00f4i \u0111\u01b0a ra m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m \u0111\u1ec3\u00a0c\u00e1c b\u1ea1n tham kh\u1ea3o nh\u00e9.<\/p>\n

D\u1ec5 d\u00e0ng s\u1eed d\u1ee5ng:<\/strong> M\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng t\u1eeb c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean cho \u0111\u1ebfn sysadmin \u0111\u1ec1u c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng s\u1eed d\u1ee5ng b\u1edfi docker bi\u1ebft c\u00e1ch t\u1eadn d\u1ee5ng nh\u1eefng l\u1ee3i th\u1ebf c\u1ee7a containers \u0111\u1ec3 x\u00e2y d\u1ef1ng v\u00e0 ki\u1ec3m tra c\u00e1c \u1ee9ng d\u1ee5ng nhanh ch\u00f3ng. Ngo\u00e0i ra, v\u1edbi c\u00e2u th\u1ea7n ch\u00fa l\u00e0 \u201cBuild once, run anywhere\u201d,<\/em> b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u00f3ng g\u00f3i c\u00e1c \u1ee9ng d\u1ee5ng tr\u00ean laptop v\u00e0 ch\u1ea1y \u0111\u01b0\u1ee3c tr\u00ean public cloud.<\/p>\n

\"Docker

Docker s\u1eed d\u1ee5ng d\u1ec5 d\u00e0ng<\/p><\/div>\n

Xem th\u00eam>>> C\u00e1ch c\u00e0i \u0111\u1eb7t WP Rocket nhanh ch\u00f3ng nh\u1ea5t<\/a><\/strong><\/em><\/p>\n

T\u1ed1c \u0111\u1ed9:<\/strong>\u00a0B\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o v\u00e0 ch\u1ea1y docker containers ch\u1ec9 trong v\u00f2ng m\u1ed9t v\u00e0i gi\u00e2y v\u00ec t\u1ed1c \u0111\u1ed9 c\u1ee7a n\u00f3 kh\u00e1 nhanh v\u00e0 nh\u1eb9.<\/p>\n

Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> V\u1edbi Docker th\u00ec b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng li\u00ean k\u1ebft c\u00e1c containers ri\u00eang l\u1ebb \u0111\u00e3 \u0111\u01b0\u1ee3c chia nh\u1ecf t\u1eeb nh\u1eefng ch\u1ee9c n\u0103ng c\u1ee7a \u1ee9ng d\u1ee5ng \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t \u1ee9ng d\u1ee5ng kh\u00e1c c\u00f3 th\u1ec3 update hay scale c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ed9c l\u1eadp \u0111\u00f3 v\u1edbi nhau.<\/p>\n

T\u1ea1o m\u00f4i tr\u01b0\u1eddng ch\u1ea1y:<\/strong> Ch\u1ec9 v\u1edbi v\u00e0i d\u00f2ng l\u1ec7nh \u0111\u01a1n gi\u1ea3n b\u1ea1n b\u1ea1n \u0111\u00e3 c\u00f3 th\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c m\u1ed9t m\u00f4i tr\u01b0\u1eddng \u1ea3o ho\u00e1 v\u1edbi \u0111\u1ea7y \u0111\u1ee7 t\u1ea5t c\u1ea3 nh\u1eefng ch\u1ee9c n\u0103ng v\u00e0 nh\u1eefng c\u00e0i \u0111\u1eb7t c\u1ea7n thi\u1ebft cho d\u1ef1 \u00e1n m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/p>\n

Ngo\u00e0i ra, nh\u1eefng h\u1ec7 th\u1ed1ng l\u1edbn \u0111ang c\u00f3 xu h\u01b0\u1edbng chuy\u1ec3n d\u1ecbch sang microservices. V\u00ec v\u1eady, nghi\u1ec5m nhi\u00ean, docker tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn c\u1ef1c k\u1ef3 quan tr\u1ecdng v\u00e0 l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a nhi\u1ec1u c\u00f4ng c\u1ee5 DevOps.<\/p>\n

Hy v\u1ecdng, v\u1edbi nh\u1eefng ki\u1ebfn th\u1ee9c \u0111\u01b0\u1ee3c cung c\u1ea5p trong b\u00e0i vi\u1ebft, b\u1ea1n \u0111\u00e3 hi\u1ec3u \u0111\u01b0\u1ee3c docker l\u00e0 g\u00ec c\u0169ng nh\u01b0 thu\u1eadt ng\u1eef li\u00ean quan v\u00e0 quy tr\u00ecnh th\u1ef1c hi\u1ec7n docker.\u00a0Ch\u00fac c\u00e1c b\u1ea1n th\u00e0nh c\u00f4ng!<\/p>\n

\u0110\u0103ng k\u00fd Website m\u1edbi t\u1ea1i \u0111\u00e2y >>>\u00a0Gi\u1ea3i ph\u00e1p website tr\u1ecdn g\u00f3i Hostify<\/a><\/span><\/span><\/h3>\n

Th\u00f4ng tin li\u00ean h\u1ec7 t\u01b0 v\u1ea5n<\/strong><\/p>\n