测试开发CICD——Docker——docker inspect ——获取容器/镜像的元数据
作者：互联网
docker inspect : 获取容器/镜像的元数据。
语法
docker inspect [OPTIONS] NAME|ID [NAME|ID...]
OPTIONS说明：
-
-f :指定返回值的模板文件。
-
-s :显示总的文件大小。
-
--type :为指定类型返回JSON。
作用
获取容器/镜像的元数据（JSON格式）
语法格式
docker inspect [OPTIONS] NAME|ID [NAME|ID...]
options 说明
| option | 说明 |
| -f | 指定返回值的模板文件 |
| -s | 如果类型为容器，则显示文件总大小 |
| --type | 返回指定类型的JSON |
重点
-f 的使用场景更有实用性
实际栗子
获取容器 IP
docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $CONTAINER_ID
简单版本
docker inspect tomcat7 | grep IPAddress
就是内容会多了点，但有输出关键信息就行
获取容器 MAC 地址
docker inspect --format='{{range .NetworkSettings.Networks}}{{.MacAddress}}{{end}}' $CONTAINER_ID
简单版本
docker inspect tomcat7 | grep MacAddress
万物皆可 grep 哈哈哈
获取容器日志路径
docker inspect --format='{{.LogPath}}' $CONTAINER_ID
获取容器的镜像名
root@PL-TEST:~# docker inspect -f "{{.Config.Image}}" p100_syslog
registry.cn-shenzhen.com/image/syslog:1.0
获取容器目录挂载信息
docker inspect --format="{{json .Mounts}}" container
可以看到这种输出结果不太友好
美化输出结果
#使用python的json模块美化
docker inspect --format="{{json .Mounts}}" container | python -m json.tool
#使用jq美化
docker inspect --format="{{json .Mounts}}" container | jq
获取容器网络信息
#查看完整网络信息
docker inspect --format="{{json .NetworkSettings}}" container | jq
#查看网络端口映射
docker inspect --format="{{json .NetworkSettings.Ports}}" container | jq
# 查看容器的网络ip、网关等信息
docker inspect --format="{{json .NetworkSettings.Networks}}" container | jq
获取容器特定端口的映射信息
docker inspect --format='{{(index (index .NetworkSettings.Ports "8787/tcp") 0).HostPort}}' $INSTANCE_ID
到时候改 8787 这个端口就行
获取容器的元数据
docker inspect tomcat7
结果
[
{
"Id": "453d5e85856052a33f25954ea491648d4f465b073a0b13257734271534ce25ee",
"Created": "2020-11-16T15:04:21.46225831Z",
"Path": "catalina.sh",
"Args": [
"run"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 8151,
"ExitCode": 0,
"Error": "",
"StartedAt": "2020-11-16T16:52:39.762574155Z",
"FinishedAt": "2020-11-16T16:32:59.955468647Z"
},
"Image": "sha256:d0f27b446f0a9cf5638da4c45bfdb9a6e0abb5b5f2b168a59c1242ec31934b39",
"ResolvConfPath": "/var/lib/docker/containers/453d5e85856052a33f25954ea491648d4f465b073a0b13257734271534ce25ee/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/453d5e85856052a33f25954ea491648d4f465b073a0b13257734271534ce25ee/hostname",
"HostsPath": "/var/lib/docker/containers/453d5e85856052a33f25954ea491648d4f465b073a0b13257734271534ce25ee/hosts",
"LogPath": "/var/lib/docker/containers/453d5e85856052a33f25954ea491648d4f465b073a0b13257734271534ce25ee/453d5e85856052a33f25954ea491648d4f465b073a0b13257734271534ce25ee-json.log",
"Name": "/tomcat7",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": [
"/usr/local/tomcat/webapps:/usr/local/tomcat/webapps"
],
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"8080/tcp": [
{
"HostIp": "",
"HostPort": "9999"
}
]
},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Capabilities": null,
"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",
"ConsoleSize": [
0,
0
],
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"NanoCpus": 0,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": [],
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DeviceCgroupRules": null,
"DeviceRequests": null,
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": null,
"Ulimits": null,
"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"
],
"ReadonlyPaths": [
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
]
},
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/f55d301001836d0bca303385ecf6981356823dab220a0f05cbf4101d0c4b6410-init/diff:/var/lib/docker/overlay2/42ba885fce62f2962b45c326cce2c29b1fd8e114fe549df69fef65b37ab230fa/diff:/var/lib/docker/overlay2/b94481ba0b495bb249e06173dee0e218c13f3e65f7fe23fd5b782c79bd30fe4e/diff:/var/lib/docker/overlay2/177d76f6dd0dca23e1ec9befe03326cbe23fa21a3efa4cfaa74c7f8792198a06/diff:/var/lib/docker/overlay2/651d96c0ee26ee6a5b4206eb812d0c5ba698f1deddfb97f7b943b1a6593b0528/diff:/var/lib/docker/overlay2/5a61caef4107e0883a82e23984c68b00e81c0ce59b603b75cfd9f6a21ca14a18/diff:/var/lib/docker/overlay2/e2dc6737c4504743ab26d2a8e25bae2eaf698493d61d1aff2b723cbff152af81/diff:/var/lib/docker/overlay2/fdca5f4d98e7a1c7a4e3ec17f64b311872fe3cbed6714b819631fea68834b5b8/diff:/var/lib/docker/overlay2/c235b69a918380eccb2202487e8b1581f8af7396ff23bf29bf512e049a10b251/diff:/var/lib/docker/overlay2/6dc73398e20a27e7aa90545d1098152f6e817c5e9cdf79a8c1b647aa86a51e0c/diff:/var/lib/docker/overlay2/140b83aec0bf703150319d5d27ba7192a3f3496486a1baac37809c656d802733/diff",
"MergedDir": "/var/lib/docker/overlay2/f55d301001836d0bca303385ecf6981356823dab220a0f05cbf4101d0c4b6410/merged",
"UpperDir": "/var/lib/docker/overlay2/f55d301001836d0bca303385ecf6981356823dab220a0f05cbf4101d0c4b6410/diff",
"WorkDir": "/var/lib/docker/overlay2/f55d301001836d0bca303385ecf6981356823dab220a0f05cbf4101d0c4b6410/work"
},
"Name": "overlay2"
},
"Mounts": [
{
"Type": "bind",
"Source": "/usr/local/tomcat/webapps",
"Destination": "/usr/local/tomcat/webapps",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
}
],
"Config": {
"Hostname": "453d5e858560",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"8080/tcp": {}
},
"Tty": false,
"OpenStdin": true,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/tomcat/bin:/usr/local/openjdk-8/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"LANG=C.UTF-8",
"JAVA_HOME=/usr/local/openjdk-8",
"JAVA_VERSION=8u265",
"CATALINA_HOME=/usr/local/tomcat",
"TOMCAT_NATIVE_LIBDIR=/usr/local/tomcat/native-jni-lib",
"LD_LIBRARY_PATH=/usr/local/tomcat/native-jni-lib",
"GPG_KEYS=05AB33110949707C93A279E3D3EFE6B686867BA6 07E48665A34DCAFAE522E5E6266191C37C037D42 47309207D818FFD8DCD3F83F1931D684307A10A5 541FBE7D8F78B25E055DDEE13C370389288584E7 61B832AC2F1C5A90F0F9B00A1C506407564C17A3 713DA88BE50911535FE716F5208B0AB1D63011C7 79F7026C690BAA50B92CD8B66A3AD3F4F22C4FED 9BA44C2621385CB966EBA586F72C284D731FABEE A27677289986DB50844682F8ACB77FC2E86E29AC A9C5DF4D22E99998D9875A5110C01C5A2F6059E7 DCFD35E0BF8CA7344752DE8B6FB21E8933C60243 F3A04C595DB5B6A5F1ECA43E3B7BBB100D811BBE F7DA48BB64BCB84ECBA7EE6935CD23C10D498E23",
"TOMCAT_MAJOR=7",
"TOMCAT_VERSION=7.0.106",
"TOMCAT_SHA512=f1fb2f3db9e66e66df120b058c216e72ec30df90abd80feda49773fa35c3c00cb56e4d264803696e1a71591d5cb60fcabf60f37e1774d549642ebe3eb902622d"
],
"Cmd": [
"catalina.sh",
"run"
],
"Image": "tomcat:7",
"Volumes": null,
"WorkingDir": "/usr/local/tomcat",
"Entrypoint": null,
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "42de54c029f2455fb86407ac397fa491a01819106c267c2ae8ca84c8f7955686",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"8080/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "9999"
}
]
},
"SandboxKey": "/var/run/docker/netns/42de54c029f2",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "86302746bf794210a2d24b869c6a1175586124de8b3128c98e33150411f213c1",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:03",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "b6f97cbdc0ef2e334507c79e4e5aa99703e6bfc6735b199fc34e47d3725de3ee",
"EndpointID": "86302746bf794210a2d24b869c6a1175586124de8b3128c98e33150411f213c1",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:03",
"DriverOpts": null
}
}
}
}
]
标签：lib,CICD,inspect,overlay2,var,Docker,null,docker 来源： https://www.cnblogs.com/xiaobaibailongma/p/15143242.html