保存镜像 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 root@hello:~# docker pull postgres Using default tag: latest latest: Pulling from library/postgres a2abf6c4d29d: Already exists e1769f49f910: Pull complete 33a59cfee47c: Pull complete 461b2090c345: Pull complete 8ed8ab6290ac: Pull complete 495e42c822a0: Pull complete 18e858c71c58: Pull complete 594792c80d5f: Pull complete 794976979956: Pull complete eb5e1a73c3ca: Pull complete 6d6360292cba: Pull complete 131e916e1a28: Pull complete 757a73507e2e: Pull complete Digest: sha256:f329d076a8806c0ce014ce5e554ca70f4ae9407a16bb03baa7fef287ee6371f1 Status: Downloaded newer image for postgres:latest docker.io/library/postgres:latest root@hello:~# root@hello:~# docker save > postgres.tar postgres:latest root@hello:~# ll postgres.tar -rw-r--r-- 1 root root 381950976 Mar 30 08:04 postgres.tar root@hello:~#
导入镜像 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 root@hello:~# docker load -i postgres.tar 7ab4f6ae3ff7: Loading layer [==================================================>] 10.18MB/10.18MB db8b35906c8d: Loading layer [==================================================>] 340kB/340kB f9f2c722c092: Loading layer [==================================================>] 4.19MB/4.19MB 75be6af37d28: Loading layer [==================================================>] 25.7MB/25.7MB 15dd9dd29d12: Loading layer [==================================================>] 1.682MB/1.682MB 1d5d2439ed88: Loading layer [==================================================>] 2.048kB/2.048kB 920ba1e03a88: Loading layer [==================================================>] 6.656kB/6.656kB eb96dca5c689: Loading layer [==================================================>] 255.8MB/255.8MB 3acb2bfab7b0: Loading layer [==================================================>] 66.56kB/66.56kB 140aef27609a: Loading layer [==================================================>] 2.048kB/2.048kB c06253083edb: Loading layer [==================================================>] 3.584kB/3.584kB e7b07b473569: Loading layer [==================================================>] 15.36kB/15.36kB Loaded image: postgres:latest
启动容器 1 2 3 4 5 6 7 8 root@hello:~# mkdir /data/postgres -p root@hello:~# docker run --name postgres -e POSTGRES_PASSWORD=thinker -p 5432:5432 -v /data/postgres:/var/lib/postgresql/data -d postgres ae30b561a607210d4cbb42f5cc344898341124feeb1a2e5fe68031ec1a46b5b4 root@hello:~# docker ps | grep postgres ae30b561a607 postgres "docker-entrypoint.s…" About a minute ago Up About a minute 0.0.0.0:5432->5432/tcp, :::5432->5432/tcp postgres
访问测试 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 root@hello:~# docker exec -it ae30b561a607 bash root@ae30b561a607:/# su postgres postgres@ae30b561a607:/$ psql psql (14.1 (Debian 14.1-1.pgdg110+1)) Type "help" for help. postgres-# \l List of databases Name | Owner | Encoding | Collate | Ctype | Access privileges -----------+----------+----------+------------+------------+----------------------- postgres | postgres | UTF8 | en_US.utf8 | en_US.utf8 | template0 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres + | | | | | postgres=CTc/postgres template1 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres + | | | | | postgres=CTc/postgres (3 rows) postgres-#
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