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（docker笔记）：日志、元数据、进程的查看_openstdin:true

作者：小桥流水78 | 2024-08-22 12:10:21

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目录

常用其他命令

后台启动容器 docker run -d

查看日志 docker logs

查看容器中进程信息 docker top

查看镜像的元数据 docker inspect

常用其他命令

后台启动容器 docker run -d 

docker run -d  centos   # 后台启动
  • 说明：
    • 启动docker后ps会发现centos停止了
    • 常见的坑：docker 容器使用后台运行，就必须要有一个前台进程(就是交互)如果 docker 发现没有应用，自己没有提供服务，就会立刻停止

查看日志 docker logs

  1. docker logs --help
  2.  
  3. Usage:	docker logs [OPTIONS] CONTAINER
  4.  
  5. Fetch the logs of a container
  6.  
  7. Options:
  8.       --details        Show extra details provided to logs
  9.   -f, --follow         Follow log output
  10.       --since string   Show logs since timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m for 42 minutes)
  11.       --tail string    Number of lines to show from the end of the logs (default "all")
  12.   -t, --timestamps     Show timestamps
  13.       --until string   Show logs before a timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m for 42 minutes)
docker logs -f -t --tail 容器id  行数  # 查看容器运行日志
  • 案例：
  1. #编写脚本
  2. docker run -d centos /bin/sh -c "while true;do echo hello;sleep 1;done"
  3.  
  4. 显示日志
  5. docker logs -tf --tail 10 064deaaddcdd

查看容器中进程信息 docker top

  1. # 查看容器内的进程信息
  2. docker top 容器id

查看镜像的元数据 docker inspect

  1. # 查看容器内所有信息
  2. docker inspect 容器id
  1. root@:/# docker inspect 9e81a383cd92
  2. [
  3.     {
  4.         # 容器id 能发现命令中的id只是这里面的一小部分
  5.         "Id": "9e81a383cd92e049add2e7376b2591d3ebef871bf1be7ed651cfe435a0b96ad1",
  6.         # 创建时间
  7.         "Created": "2020-09-11T07:57:14.851996196Z",
  8.         # 交互前台路径
  9.         "Path": "/bin/bash",
  10.         # 携带参数
  11.         "Args": [],
  12.         # 容器状态
  13.         "State": {
  14.             "Status": "exited",
  15.             "Running": false,
  16.             "Paused": false,
  17.             "Restarting": false,
  18.             "OOMKilled": false,
  19.             "Dead": false,
  20.             "Pid": 0,
  21.             "ExitCode": 0,
  22.             "Error": "",
  23.             "StartedAt": "2020-09-11T08:12:17.617331424Z",
  24.             "FinishedAt": "2020-09-11T08:13:42.863278698Z"
  25.         },
  26.         # 镜像来源
  27.         "Image": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
  28.         "ResolvConfPath": "/var/lib/docker/containers/9e81a383cd92e049add2e7376b2591d3ebef871bf1be7ed651cfe435a0b96ad1/resolv.conf",
  29.         "HostnamePath": "/var/lib/docker/containers/9e81a383cd92e049add2e7376b2591d3ebef871bf1be7ed651cfe435a0b96ad1/hostname",
  30.         "HostsPath": "/var/lib/docker/containers/9e81a383cd92e049add2e7376b2591d3ebef871bf1be7ed651cfe435a0b96ad1/hosts",
  31.         "LogPath": "/var/lib/docker/containers/9e81a383cd92e049add2e7376b2591d3ebef871bf1be7ed651cfe435a0b96ad1/9e81a383cd92e049add2e7376b2591d3ebef871bf1be7ed651cfe435a0b96ad1-json.log",
  32.         "Name": "/musing_shannon",
  33.         "RestartCount": 0,
  34.         "Driver": "overlay2",
  35.         "Platform": "linux",
  36.         "MountLabel": "",
  37.         "ProcessLabel": "",
  38.         "AppArmorProfile": "",
  39.         "ExecIDs": null,
  40.         # 主机配置
  41.         "HostConfig": {
  42.             "Binds": null,
  43.             "ContainerIDFile": "",
  44.             "LogConfig": {
  45.                 "Type": "json-file",
  46.                 "Config": {}
  47.             },
  48.             "NetworkMode": "default",
  49.             "PortBindings": {},
  50.             "RestartPolicy": {
  51.                 "Name": "no",
  52.                 "MaximumRetryCount": 0
  53.             },
  54.             "AutoRemove": false,
  55.             "VolumeDriver": "",
  56.             "VolumesFrom": null,
  57.             "CapAdd": null,
  58.             "CapDrop": null,
  59.             "Capabilities": null,
  60.             "Dns": [],
  61.             "DnsOptions": [],
  62.             "DnsSearch": [],
  63.             "ExtraHosts": null,
  64.             "GroupAdd": null,
  65.             "IpcMode": "private",
  66.             "Cgroup": "",
  67.             "Links": null,
  68.             "OomScoreAdj": 0,
  69.             "PidMode": "",
  70.             "Privileged": false,
  71.             "PublishAllPorts": false,
  72.             "ReadonlyRootfs": false,
  73.             "SecurityOpt": null,
  74.             "UTSMode": "",
  75.             "UsernsMode": "",
  76.             "ShmSize": 67108864,
  77.             "Runtime": "runc",
  78.             "ConsoleSize": [
  79.                 0,
  80.                 0
  81.             ],
  82.             "Isolation": "",
  83.             "CpuShares": 0,
  84.             "Memory": 0,
  85.             "NanoCpus": 0,
  86.             "CgroupParent": "",
  87.             "BlkioWeight": 0,
  88.             "BlkioWeightDevice": [],
  89.             "BlkioDeviceReadBps": null,
  90.             "BlkioDeviceWriteBps": null,
  91.             "BlkioDeviceReadIOps": null,
  92.             "BlkioDeviceWriteIOps": null,
  93.             "CpuPeriod": 0,
  94.             "CpuQuota": 0,
  95.             "CpuRealtimePeriod": 0,
  96.             "CpuRealtimeRuntime": 0,
  97.             "CpusetCpus": "",
  98.             "CpusetMems": "",
  99.             "Devices": [],
  100.             "DeviceCgroupRules": null,
  101.             "DeviceRequests": null,
  102.             "KernelMemory": 0,
  103.             "KernelMemoryTCP": 0,
  104.             "MemoryReservation": 0,
  105.             "MemorySwap": 0,
  106.             "MemorySwappiness": null,
  107.             "OomKillDisable": false,
  108.             "PidsLimit": null,
  109.             "Ulimits": null,
  110.             "CpuCount": 0,
  111.             "CpuPercent": 0,
  112.             "IOMaximumIOps": 0,
  113.             "IOMaximumBandwidth": 0,
  114.             "MaskedPaths": [
  115.                 "/proc/asound",
  116.                 "/proc/acpi",
  117.                 "/proc/kcore",
  118.                 "/proc/keys",
  119.                 "/proc/latency_stats",
  120.                 "/proc/timer_list",
  121.                 "/proc/timer_stats",
  122.                 "/proc/sched_debug",
  123.                 "/proc/scsi",
  124.                 "/sys/firmware"
  125.             ],
  126.             "ReadonlyPaths": [
  127.                 "/proc/bus",
  128.                 "/proc/fs",
  129.                 "/proc/irq",
  130.                 "/proc/sys",
  131.                 "/proc/sysrq-trigger"
  132.             ]
  133.         },
  134.         "GraphDriver": {
  135.             "Data": {
  136.                 "LowerDir": "/var/lib/docker/overlay2/2787c367dc59c967fbda7ada8dfbc92e0978e0798aeb08f2c1b1b92d3310fb2a-init/diff:/var/lib/docker/overlay2/b97e21785f70e73bb18eb7664ff0525b81481b801da94cae1760bf59e59aab93/diff",
  137.                 "MergedDir": "/var/lib/docker/overlay2/2787c367dc59c967fbda7ada8dfbc92e0978e0798aeb08f2c1b1b92d3310fb2a/merged",
  138.                 "UpperDir": "/var/lib/docker/overlay2/2787c367dc59c967fbda7ada8dfbc92e0978e0798aeb08f2c1b1b92d3310fb2a/diff",
  139.                 "WorkDir": "/var/lib/docker/overlay2/2787c367dc59c967fbda7ada8dfbc92e0978e0798aeb08f2c1b1b92d3310fb2a/work"
  140.             },
  141.             "Name": "overlay2"
  142.         },
  143.         # 挂载信息
  144.         "Mounts": [],
  145.         # 基本配置
  146.         "Config": {
  147.             "Hostname": "9e81a383cd92",
  148.             "Domainname": "",
  149.             "User": "",
  150.             "AttachStdin": true,
  151.             "AttachStdout": true,
  152.             "AttachStderr": true,
  153.             "Tty": true,
  154.             "OpenStdin": true,
  155.             "StdinOnce": true,
  156.             # 环境变量
  157.             "Env": [
  158.                 "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
  159.             ],
  160.             # 命令行
  161.             "Cmd": [
  162.                 "/bin/bash"
  163.             ],
  164.             "Image": "centos",
  165.             "Volumes": null,
  166.             "WorkingDir": "",
  167.             "Entrypoint": null,
  168.             "OnBuild": null,
  169.             "Labels": {
  170.                 "org.label-schema.build-date": "20200809",
  171.                 "org.label-schema.license": "GPLv2",
  172.                 "org.label-schema.name": "CentOS Base Image",
  173.                 "org.label-schema.schema-version": "1.0",
  174.                 "org.label-schema.vendor": "CentOS"
  175.             }
  176.         },
  177.         # 网络设置
  178.         "NetworkSettings": {
  179.             "Bridge": "",
  180.             "SandboxID": "3bfa7ee85741f9e8d1b7fe09a5fdafbf2786fad86dd9c3f1633b9ad299e05f77",
  181.             "HairpinMode": false,
  182.             "LinkLocalIPv6Address": "",
  183.             "LinkLocalIPv6PrefixLen": 0,
  184.             "Ports": {},
  185.             "SandboxKey": "/var/run/docker/netns/3bfa7ee85741",
  186.             "SecondaryIPAddresses": null,
  187.             "SecondaryIPv6Addresses": null,
  188.             "EndpointID": "",
  189.             "Gateway": "",
  190.             "GlobalIPv6Address": "",
  191.             "GlobalIPv6PrefixLen": 0,
  192.             "IPAddress": "",
  193.             "IPPrefixLen": 0,
  194.             "IPv6Gateway": "",
  195.             "MacAddress": "",
  196.             "Networks": {
  197.             	# 当前使用的网络工作模式
  198.                 "bridge": {
  199.                     "IPAMConfig": null,
  200.                     "Links": null,
  201.                     "Aliases": null,
  202.                     "NetworkID": "0ace116fbc7bb24ece8d7e00cb9523b2d72342af0dca94b4f3ae1bd56913d98d",
  203.                     "EndpointID": "",
  204.                     "Gateway": "",
  205.                     "IPAddress": "",
  206.                     "IPPrefixLen": 0,
  207.                     "IPv6Gateway": "",
  208.                     "GlobalIPv6Address": "",
  209.                     "GlobalIPv6PrefixLen": 0,
  210.                     "MacAddress": "",
  211.                     "DriverOpts": null
  212.                 }
  213.             }
  214.         }
  215.     }
  216. ]

 

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