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查看容器的日志

docker logs 可以查看容器的日志

格式

docker logs [OPTIONS] CONTAINER
选项:
      --details        Show extra details provided to logs
  -f, --follow         Follow log output
      --since string   Show logs since timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m for   42 minutes)
      --tail string    Number of lines to show from the end of the logs (default "all")
  -t, --timestamps     Show timestamps
      --until string   Show logs before a timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m     for 42 minutes)

范例:查看Nginx 容器访问日志

[root@ubuntu1804 ~]#docker run -d  alpine /bin/sh -c 'i=1;while true;do echo hello$i;let i++;sleep 2;done'
512622b006c05673630eb04f081f8475400b1cda786b0a8a5d1c1c2fd6dc56a7
[root@ubuntu1804 ~]#docker logs  5126
hello1
hello2
hello3
hello4
hello5
hello6
[root@ubuntu1804 ~]#docker logs --tail 3 5126
hello8
hello9
hello10
[root@ubuntu1804 ~]#docker logs --tail 3 -t 5126
2020-02-25T13:26:05.319030280Z hello15
2020-02-25T13:28:06.320335866Z hello16
2020-02-25T13:30:07.321390731Z hello17

#持续跟踪
[root@ubuntu1804 ~]#docker logs -f 5126
hello1
hello2
hello3
hello4
hello5
hello6
hello7
hello8
hello9
hello10
hello11
hello12
hello13
hello14
hello15
hello16
hello17
hello18
.....

#查看一次
[root@centos7 ~]#docker logs nginx-test-port1
10.0.0.1 - - [26/Jan/2020:07:17:16 +0000] "GET /favicon.ico HTTP/1.1" 404 555 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36" "-"
2020/01/26 07:17:16 [error] 6#6: *1 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 10.0.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "10.0.0.7:32769"
10.0.0.1 - - [26/Jan/2020:07:17:17 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko" "-"

#持续查看
[root@centos7 ~]#docker logs -f nginx-test-port1
10.0.0.1 - - [26/Jan/2020:07:17:16 +0000] "GET /favicon.ico HTTP/1.1" 404 555 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36" "-"
2020/01/26 07:17:16 [error] 6#6: *1 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 10.0.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "10.0.0.7:32769"
10.0.0.1 - - [26/Jan/2020:07:17:17 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko" "-"

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docker-容器端口映射

docker-容器传递命令

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