[root@docker web]# docker version
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Client: Docker Engine - Community
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?Version: ? ? ? ? ? 20.10.8
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?API version: ? ? ? 1.41
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?Go version: ? ? ? ?go1.16.6
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?Git commit: ? ? ? ?3967b7d
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?Built: ? ? ? ? ? ? Fri Jul 30 19:53:39 2021
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?OS/Arch: ? ? ? ? ? linux/amd64
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?Context: ? ? ? ? ? default
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?Experimental: ? ? ?true
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Server: Docker Engine - Community
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?Engine:
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? Version: ? ? ? ? ?20.10.8
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? API version: ? ? ?1.41 (minimum version 1.12)
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? Go version: ? ? ? go1.16.6
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? Git commit: ? ? ? 75249d8
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? Built: ? ? ? ? ? ?Fri Jul 30 19:52:00 2021
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? OS/Arch: ? ? ? ? ?linux/amd64
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? Experimental: ? ? false
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?containerd:
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? Version: ? ? ? ? ?1.4.9
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? GitCommit: ? ? ? ?e25210fe30a0a703442421b0f60afac609f950a3
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?runc:
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? Version: ? ? ? ? ?1.0.1
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? GitCommit: ? ? ? ?v1.0.1-0-g4144b63
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?docker-init:
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? Version: ? ? ? ? ?0.19.0
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? GitCommit: ? ? ? ?de40ad0

?查看鏡像：docker images

[root@docker web]# docker images
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REPOSITORY ? ? ? ? ?TAG ? ? ? IMAGE ID ? ? ? CREATED ? ? ? ?SIZE
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daocloud.io/nginx ? latest ? ?6084105296a9 ? 5 months ago ? 133MB
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hello-world ? ? ? ? latest ? ?d1165f221234 ? 5 months ago ? 13.3kB

?刪除鏡像：docker rmi 鏡像名

[root@docker ~]# docker rmi mysql:latest
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Untagged: mysql:latest
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Untagged: mysql@sha256:8b928a5117cf5c2238c7a09cd28c2e801ac98f91c3f8203a8938ae51f14700fd
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Deleted: sha256:c60d96bd2b771a8e3cae776e02e55ae914a6641139d963defeb3c93388f61707
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Deleted: sha256:5c8c91273faab368a6d659156f2569fa9f40b0e0139222fdf9eef073df4b3797
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Deleted: sha256:33d8196a776f42a16f10395b66f10f91443b1fb194bca2a9b8dfb0deff5babb8
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Deleted: sha256:3ec63323025213e3cabf17ac7933506dc5520ec49226a9764418f77ea60d35c8
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Deleted: sha256:1f129b005b51b049ac84ed0775b82096d480b7d9308a9a137697f37346562266
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Deleted: sha256:80ed209bd0434faa1ce31fbaab8508124dddf8f6502c5736ee4b8e46697a8477

查找docker里的鏡像：docker search?鏡像名

[root@docker web]# docker search nginx
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NAME ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?DESCRIPTION ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? STARS ? ? OFFICIAL ? AUTOMATED
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nginx ? ? ? ? ? ? ? ? ? ? ? ? ? ? Official build of Nginx. ? ? ? ? ? ? ? ? ? ? ? ?15297 ? ? [OK] ? ? ?
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jwilder/nginx-proxy ? ? ? ? ? ? ? Automated Nginx reverse proxy for docker con… ? 2058 ? ? ? ? ? ? ? ? [OK]
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richarvey/nginx-php-fpm ? ? ? ? ? Container running Nginx + PHP-FPM capable of… ? 815 ? ? ? ? ? ? ? ? ?[OK]
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jc21/nginx-proxy-manager ? ? ? ? ?Docker container for managing Nginx proxy ho… ? 228 ?

docker下載鏡像：docker pull?鏡像名(指定版本則鏡像名：版本號)默認去hubdocker下載

1. [root@docker web]# docker pull mysql
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   Using default tag: latest
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   latest: Pulling from library/mysql
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   33847f680f63: Pull complete
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   5cb67864e624: Pull complete
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   1a2b594783f5: Pull complete
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   b30e406dd925: Pull complete
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   48901e306e4c: Pull complete
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   603d2b7147fd: Pull complete
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   802aa684c1c4: Pull complete
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   715d3c143a06: Pull complete
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   6978e1b7a511: Pull complete
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   f0d78b0ac1be: Pull complete
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   35a94d251ed1: Pull complete
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   36f75719b1a9: Pull complete
   ?
   Digest: sha256:8b928a5117cf5c2238c7a09cd28c2e801ac98f91c3f8203a8938ae51f14700fd
   ?
   Status: Downloaded newer image for mysql:latest
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   docker.io/library/mysql:latest

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