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docker XML详解

news 2025/9/12 23:41:19

下列为一个基本的运行docker镜像文件

{"Id": "62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba","Created": "2024-07-11T04:00:09.36091853Z","Path": "java","Args": ["-jar","maku-generator-server.jar","--spring.datasource.url=jdbc:mysql://host.docker.internal:3306/maku_generator?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&nullCatalogMeansCurrent=true"],"State": {"Status": "exited","Running": false,"Paused": false,"Restarting": false,"OOMKilled": false,"Dead": false,"Pid": 0,"ExitCode": 143,"Error": "","StartedAt": "2024-08-14T09:01:17.352355112Z","FinishedAt": "2024-08-14T09:01:22.086400171Z"},"Image": "sha256:b35f89cd19d3e6e51375db52afae00e6667e57bf011c732f792022eb8a132916","ResolvConfPath": "/var/lib/docker/containers/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba/resolv.conf","HostnamePath": "/var/lib/docker/containers/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba/hostname","HostsPath": "/var/lib/docker/containers/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba/hosts","LogPath": "/var/lib/docker/containers/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba-json.log","Name": "/gen","RestartCount": 0,"Driver": "overlay2","Platform": "linux","MountLabel": "","ProcessLabel": "","AppArmorProfile": "","ExecIDs": null,"HostConfig": {"Binds": null,"ContainerIDFile": "","LogConfig": {"Type": "json-file","Config": {}},"NetworkMode": "default","PortBindings": {"8088/tcp": [{"HostIp": "","HostPort": "8088"}]},"RestartPolicy": {"Name": "no","MaximumRetryCount": 0},"AutoRemove": false,"VolumeDriver": "","VolumesFrom": null,"ConsoleSize": [22,163],"CapAdd": null,"CapDrop": null,"CgroupnsMode": "host","Dns": [],"DnsOptions": [],"DnsSearch": [],"ExtraHosts": null,"GroupAdd": null,"IpcMode": "private","Cgroup": "","Links": null,"OomScoreAdj": 0,"PidMode": "","Privileged": false,"PublishAllPorts": false,"ReadonlyRootfs": false,"SecurityOpt": null,"UTSMode": "","UsernsMode": "","ShmSize": 67108864,"Runtime": "runc","Isolation": "","CpuShares": 0,"Memory": 0,"NanoCpus": 0,"CgroupParent": "","BlkioWeight": 0,"BlkioWeightDevice": [],"BlkioDeviceReadBps": [],"BlkioDeviceWriteBps": [],"BlkioDeviceReadIOps": [],"BlkioDeviceWriteIOps": [],"CpuPeriod": 0,"CpuQuota": 0,"CpuRealtimePeriod": 0,"CpuRealtimeRuntime": 0,"CpusetCpus": "","CpusetMems": "","Devices": [],"DeviceCgroupRules": null,"DeviceRequests": null,"MemoryReservation": 0,"MemorySwap": 0,"MemorySwappiness": null,"OomKillDisable": false,"PidsLimit": null,"Ulimits": [],"CpuCount": 0,"CpuPercent": 0,"IOMaximumIOps": 0,"IOMaximumBandwidth": 0,"MaskedPaths": ["/proc/asound","/proc/acpi","/proc/kcore","/proc/keys","/proc/latency_stats","/proc/timer_list","/proc/timer_stats","/proc/sched_debug","/proc/scsi","/sys/firmware","/sys/devices/virtual/powercap"],"ReadonlyPaths": ["/proc/bus","/proc/fs","/proc/irq","/proc/sys","/proc/sysrq-trigger"]},"GraphDriver": {"Data": {"LowerDir": "/var/lib/docker/overlay2/3cdebcd1d9491c9a14c77a0db52f910629a31384e39ccc6d4853866d9eaaa79d-init/diff:/var/lib/docker/overlay2/56luuqfrswuz7x6td1fygfivh/diff:/var/lib/docker/overlay2/ce6lmn5j7bhtuwb3cqavde4at/diff:/var/lib/docker/overlay2/e9dc72b1d03bf23788aaf4cc3bf9d4609bb071d000e87d26dd48539d1400bff3/diff:/var/lib/docker/overlay2/7d739afcb052a148b6f17bd4caf00a0e32483897dd56b6b29e78b3917a533849/diff:/var/lib/docker/overlay2/f9f2b28bc59332b5675ee85cc92651460750662217b09e5cd68dfe4e1fa24c78/diff","MergedDir": "/var/lib/docker/overlay2/3cdebcd1d9491c9a14c77a0db52f910629a31384e39ccc6d4853866d9eaaa79d/merged","UpperDir": "/var/lib/docker/overlay2/3cdebcd1d9491c9a14c77a0db52f910629a31384e39ccc6d4853866d9eaaa79d/diff","WorkDir": "/var/lib/docker/overlay2/3cdebcd1d9491c9a14c77a0db52f910629a31384e39ccc6d4853866d9eaaa79d/work"},"Name": "overlay2"},"Mounts": [],"Config": {"Hostname": "62a82b0e6993","Domainname": "","User": "","AttachStdin": false,"AttachStdout": true,"AttachStderr": true,"ExposedPorts": {"8088/tcp": {}},"Tty": false,"OpenStdin": false,"StdinOnce": false,"Env": ["PATH=/usr/java/openjdk-17/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","JAVA_HOME=/usr/java/openjdk-17","LANG=C.UTF-8","JAVA_VERSION=17.0.1"],"Cmd": ["java","-jar","maku-generator-server.jar","--spring.datasource.url=jdbc:mysql://host.docker.internal:3306/maku_generator?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&nullCatalogMeansCurrent=true"],"Image": "gen","Volumes": null,"WorkingDir": "/app","Entrypoint": null,"OnBuild": null,"Labels": {}},"NetworkSettings": {"Bridge": "","SandboxID": "cc7661fa276fccf9cdd4d4a119b477a0ac80feeb646ac67f09de6611933cf716","SandboxKey": "/var/run/docker/netns/cc7661fa276f","Ports": {},"HairpinMode": false,"LinkLocalIPv6Address": "","LinkLocalIPv6PrefixLen": 0,"SecondaryIPAddresses": null,"SecondaryIPv6Addresses": null,"EndpointID": "","Gateway": "","GlobalIPv6Address": "","GlobalIPv6PrefixLen": 0,"IPAddress": "","IPPrefixLen": 0,"IPv6Gateway": "","MacAddress": "","Networks": {"bridge": {"IPAMConfig": null,"Links": null,"Aliases": null,"MacAddress": "","NetworkID": "0acdefbf9bb407acdab598b39ac2a428dc0531eae4d9170c332b241d8e3b0969","EndpointID": "","Gateway": "","IPAddress": "","IPPrefixLen": 0,"IPv6Gateway": "","GlobalIPv6Address": "","GlobalIPv6PrefixLen": 0,"DriverOpts": null,"DNSNames": null}}}
}

这段JSON数据描述了一个Docker容器的详细信息。下面是对关键部分的解读：

基本信息

  • Id: 容器的唯一标识符，这里是62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba。
  • Created: 容器创建时间，2024-07-11T04:00:09.36091853Z（UTC时间）。
  • Path: 容器启动时执行的命令路径，这里是java。
  • Args: 启动命令的参数，包括-jar maku-generator-server.jar和数据库连接字符串。
  • Name: 容器的名称，这里是/gen。

状态信息

  • State:
    • Status: 容器的当前状态，这里是exited，表示容器已经停止运行。
    • Running: 容器是否正在运行，这里是false。
    • ExitCode: 容器退出时的状态码，这里是143，通常表示容器被信号（如SIGTERM）终止。
    • StartedAt 和 FinishedAt: 容器开始和结束运行的时间。

镜像信息

  • Image: 容器使用的镜像ID，这里是sha256:b35f89cd19d3e6e51375db52afae00e6667e57bf011c732f792022eb8a132916。
  • Config:
    • Cmd: 容器启动时执行的命令和参数，与Args相同。
    • Env: 环境变量设置，包括PATH、JAVA_HOME等。
    • WorkingDir: 容器内的工作目录，这里是/app。

网络配置

  • NetworkSettings:
    • Networks: 容器连接的网络信息，这里只有一个名为bridge的网络，但没有具体的IP地址信息。

存储配置

  • GraphDriver:
    • Data: 描述了存储驱动（这里是overlay2）的详细信息，包括LowerDir、MergedDir、UpperDir和WorkDir，这些是overlay2存储驱动管理文件系统层的方式。

其他配置

  • HostConfig:
    • PortBindings: 端口绑定信息，这里将容器的8088端口映射到宿主机的8088端口。
    • RestartPolicy: 重启策略，这里是no，表示容器不会在退出后自动重启。
    • AutoRemove: 是否在容器停止后自动删除，这里是false。

日志和路径信息

  • LogPath: 容器日志文件的路径，这里是/var/lib/docker/containers/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba/62a82b0e69930e54c291095f632adde58dd0b247adba3a048385a55c87e38eba-json.log。
  • ResolvConfPath、HostnamePath、HostsPath: 分别指向容器的DNS配置、主机名配置和主机文件路径。

资源和安全限制

  • Driver、Platform、MountLabel、ProcessLabel、AppArmorProfile等字段提供了关于容器运行时环境和安全策略的信息。

注意事项

  • Mounts: 空的数组，表示没有额外的挂载点。
  • ExecIDs: 空的字段，表示没有执行过额外的命令。
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