Query Docker socket using curl.
Display Docker version.
$ curl --silent -XGET --unix-socket /run/docker.sock http://localhost/version | jq .
{
"Platform": {
"Name": "Docker Engine - Community"
},
"Components": [
{
"Name": "Engine",
"Version": "20.10.7",
"Details": {
"ApiVersion": "1.41",
"Arch": "amd64",
"BuildTime": "2021-06-02T11:55:12.000000000+00:00",
"Experimental": "false",
"GitCommit": "b0f5bc3",
"GoVersion": "go1.13.15",
"KernelVersion": "5.10.0-7-amd64",
"MinAPIVersion": "1.12",
"Os": "linux"
}
},
{
"Name": "containerd",
"Version": "1.4.6",
"Details": {
"GitCommit": "d71fcd7d8303cbf684402823e425e9dd2e99285d"
}
},
{
"Name": "runc",
"Version": "1.0.0-rc95",
"Details": {
"GitCommit": "b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7"
}
},
{
"Name": "docker-init",
"Version": "0.19.0",
"Details": {
"GitCommit": "de40ad0"
}
}
],
"Version": "20.10.7",
"ApiVersion": "1.41",
"MinAPIVersion": "1.12",
"GitCommit": "b0f5bc3",
"GoVersion": "go1.13.15",
"Os": "linux",
"Arch": "amd64",
"KernelVersion": "5.10.0-7-amd64",
"BuildTime": "2021-06-02T11:55:12.000000000+00:00"
}
Display Docker details.
$ curl --silent -XGET --unix-socket /run/docker.sock http://localhost/info | jq .
{
"ID": "CPMB:VYBU:UIFT:KG3E:O74F:KY5G:TRJY:R6WH:YMT2:FU6M:RHKU:MZQS",
"Containers": 8,
"ContainersRunning": 0,
"ContainersPaused": 0,
"ContainersStopped": 8,
"Images": 2,
"Driver": "overlay2",
"DriverStatus": [
[
"Backing Filesystem",
"extfs"
],
[
"Supports d_type",
"true"
],
[
"Native Overlay Diff",
"true"
],
[
"userxattr",
"false"
]
],
"Plugins": {
"Volume": [
"local"
],
"Network": [
"bridge",
"host",
"ipvlan",
"macvlan",
"null",
"overlay"
],
"Authorization": null,
"Log": [
"awslogs",
"fluentd",
"gcplogs",
"gelf",
"journald",
"json-file",
"local",
"logentries",
"splunk",
"syslog"
]
},
"MemoryLimit": true,
"SwapLimit": true,
"KernelMemory": false,
"KernelMemoryTCP": false,
"CpuCfsPeriod": true,
"CpuCfsQuota": true,
"CPUShares": true,
"CPUSet": true,
"PidsLimit": true,
"IPv4Forwarding": true,
"BridgeNfIptables": true,
"BridgeNfIp6tables": true,
"Debug": false,
"NFd": 22,
"OomKillDisable": false,
"NGoroutines": 34,
"SystemTime": "2021-07-11T21:35:42.722660756Z",
"LoggingDriver": "json-file",
"CgroupDriver": "systemd",
"CgroupVersion": "2",
"NEventsListener": 0,
"KernelVersion": "5.10.0-7-amd64",
"OperatingSystem": "Debian GNU/Linux 11 (bullseye)",
"OSVersion": "11",
"OSType": "linux",
"Architecture": "x86_64",
"IndexServerAddress": "https://index.docker.io/v1/",
"RegistryConfig": {
"AllowNondistributableArtifactsCIDRs": [],
"AllowNondistributableArtifactsHostnames": [],
"InsecureRegistryCIDRs": [
"127.0.0.0/8"
],
"IndexConfigs": {
"docker.io": {
"Name": "docker.io",
"Mirrors": [],
"Secure": true,
"Official": true
}
},
"Mirrors": []
},
"NCPU": 32,
"MemTotal": 1015853056,
"GenericResources": null,
"DockerRootDir": "/var/lib/docker",
"HttpProxy": "",
"HttpsProxy": "",
"NoProxy": "",
"Name": "bullseye",
"Labels": [],
"ExperimentalBuild": false,
"ServerVersion": "20.10.7",
"Runtimes": {
"io.containerd.runc.v2": {
"path": "runc"
},
"io.containerd.runtime.v1.linux": {
"path": "runc"
},
"runc": {
"path": "runc"
}
},
"DefaultRuntime": "runc",
"Swarm": {
"NodeID": "",
"NodeAddr": "",
"LocalNodeState": "inactive",
"ControlAvailable": false,
"Error": "",
"RemoteManagers": null
},
"LiveRestoreEnabled": false,
"Isolation": "",
"InitBinary": "docker-init",
"ContainerdCommit": {
"ID": "d71fcd7d8303cbf684402823e425e9dd2e99285d",
"Expected": "d71fcd7d8303cbf684402823e425e9dd2e99285d"
},
"RuncCommit": {
"ID": "b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7",
"Expected": "b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7"
},
"InitCommit": {
"ID": "de40ad0",
"Expected": "de40ad0"
},
"SecurityOptions": [
"name=apparmor",
"name=seccomp,profile=default",
"name=cgroupns"
],
"Warnings": null
}
Monitor current events.
$ curl --silent -XGET --unix-socket /run/docker.sock http://localhost/events
{"status":"create","id":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","from":"hello-world","Type":"container","Action":"create","Actor":{"ID":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","Attributes":{"image":"hello-world","name":"sleepy_bose"}},"scope":"local","time":1626039182,"timeNano":1626039182461367134}
{"status":"attach","id":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","from":"hello-world","Type":"container","Action":"attach","Actor":{"ID":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","Attributes":{"image":"hello-world","name":"sleepy_bose"}},"scope":"local","time":1626039182,"timeNano":1626039182469106567}
{"Type":"network","Action":"connect","Actor":{"ID":"080e4494dc690e9649bd891f224e8bc42e915633a4f55dbdd90a741ae32e8636","Attributes":{"container":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","name":"bridge","type":"bridge"}},"scope":"local","time":1626039182,"timeNano":1626039182501956621}
{"status":"start","id":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","from":"hello-world","Type":"container","Action":"start","Actor":{"ID":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","Attributes":{"image":"hello-world","name":"sleepy_bose"}},"scope":"local","time":1626039182,"timeNano":1626039182953160024}
{"status":"die","id":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","from":"hello-world","Type":"container","Action":"die","Actor":{"ID":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","Attributes":{"exitCode":"0","image":"hello-world","name":"sleepy_bose"}},"scope":"local","time":1626039182,"timeNano":1626039182989414581}
{"Type":"network","Action":"disconnect","Actor":{"ID":"080e4494dc690e9649bd891f224e8bc42e915633a4f55dbdd90a741ae32e8636","Attributes":{"container":"e5291372d0f3f530b4b67b89dc6b6e1ef511dd4bfda57f9331a5f3db34ad0917","name":"bridge","type":"bridge"}},"scope":"local","time":1626039183,"timeNano":1626039183097029362}
[...]
Create a container.
$ curl --silent -XPOST --unix-socket /run/docker.sock -d '{"Image":"nginx:latest"}' -H 'Content-Type: application/json' http://localhost/containers/create?name=nginx
{"Id":"1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e","Warnings":[]}
Start a container.
$ curl --silent -XPOST --unix-socket /run/docker.sock -H 'Content-Type: application/json' http://localhost/containers/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e/start
List containers.
$ curl --silent -XGET --unix-socket /run/docker.sock -H 'Content-Type: application/json' http://localhost/containers/json | jq .
[
{
"Id": "1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e",
"Names": [
"/nginx"
],
"Image": "nginx:latest",
"ImageID": "sha256:4cdc5dd7eaadff5080649e8d0014f2f8d36d4ddf2eff2fdf577dd13da85c5d2f",
"Command": "/docker-entrypoint.sh nginx -g 'daemon off;'",
"Created": 1626039550,
"Ports": [
{
"PrivatePort": 80,
"Type": "tcp"
}
],
"Labels": {
"maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
},
"State": "running",
"Status": "Up 19 seconds",
"HostConfig": {
"NetworkMode": "default"
},
"NetworkSettings": {
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "080e4494dc690e9649bd891f224e8bc42e915633a4f55dbdd90a741ae32e8636",
"EndpointID": "c5687cea3ffe61ebef63eeb8790bfe7d8660d37d80bcb45ca5925b02078dc8be",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02",
"DriverOpts": null
}
}
},
"Mounts": []
}
]
Display container details.
$ curl --silent -XGET --unix-socket /run/docker.sock -H 'Content-Type: application/json' http://localhost/containers/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e/json | jq .
{
"Id": "1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e",
"Created": "2021-07-11T21:39:10.89496568Z",
"Path": "/docker-entrypoint.sh",
"Args": [
"nginx",
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 2533,
"ExitCode": 0,
"Error": "",
"StartedAt": "2021-07-11T21:42:33.900117747Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:4cdc5dd7eaadff5080649e8d0014f2f8d36d4ddf2eff2fdf577dd13da85c5d2f",
"ResolvConfPath": "/var/lib/docker/containers/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e/hostname",
"HostsPath": "/var/lib/docker/containers/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e/hosts",
"LogPath": "/var/lib/docker/containers/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f76537228b0e/1c022ba8c88382b1bad03c5d32146f66b698b5211ea37057cb56f7
6537228b0e-json.log",
"Name": "/nginx",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "docker-default",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": null,
"RestartPolicy": {
"Name": "",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"CgroupnsMode": "private",
"Dns": null,
"DnsOptions": null,
"DnsSearch": null,
"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": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": null,
"DeviceCgroupRules": null,
"DeviceRequests": null,
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": null,
"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/overlay2/809ab5977bdd40ba6141faaa7bca71c8dd3044e4822a1d70faf1854736ce4efe-init/diff:/var/lib/docker/overlay2/8ea0fc74b8b7463c
33b8543224b577e9b18bb8819da8d30dccbdb710ecfae8ad/diff:/var/lib/docker/overlay2/3ee187260b539c40e08be6e0d8c53818c3359ba98b23e649c75ed557772d3dc3/diff:/var/lib/do
cker/overlay2/3b06d3cd101c53b70a4bffab1e630fdbee5a9ed2924ca9bf9bc934788a4daf55/diff:/var/lib/docker/overlay2/86163c3b8184b5c1c15faa95676fb5a64e918e47e4d21ba6b60
6852486b915ca/diff:/var/lib/docker/overlay2/80309168b2374ac3f2340312646df11f5c5be4f784dad24659c094c8396d7f0a/diff:/var/lib/docker/overlay2/d9adadc69b11e6f1fc2f3
938a9b88b7250bcb1b58c8185d727fa8d52a8b739fd/diff",
"MergedDir": "/var/lib/docker/overlay2/809ab5977bdd40ba6141faaa7bca71c8dd3044e4822a1d70faf1854736ce4efe/merged",
"UpperDir": "/var/lib/docker/overlay2/809ab5977bdd40ba6141faaa7bca71c8dd3044e4822a1d70faf1854736ce4efe/diff",
"WorkDir": "/var/lib/docker/overlay2/809ab5977bdd40ba6141faaa7bca71c8dd3044e4822a1d70faf1854736ce4efe/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "1c022ba8c883",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"NGINX_VERSION=1.21.1",
"NJS_VERSION=0.6.1",
"PKG_RELEASE=1~buster"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"Image": "nginx:latest",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"/docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {
"maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
},
"StopSignal": "SIGQUIT"
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "9f51380f91fff1155cccdfa2c731c629fd9a1bc2514f3d1e47555f3004db2191",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": null
},
"SandboxKey": "/var/run/docker/netns/9f51380f91ff",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "c5687cea3ffe61ebef63eeb8790bfe7d8660d37d80bcb45ca5925b02078dc8be",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:02",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "080e4494dc690e9649bd891f224e8bc42e915633a4f55dbdd90a741ae32e8636",
"EndpointID": "c5687cea3ffe61ebef63eeb8790bfe7d8660d37d80bcb45ca5925b02078dc8be",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02",
"DriverOpts": null
}
}
}
}
There are many more endpoints worth mentioning, so I will point you to the API documentation directly: Develop with Docker Engine API and Docker Engine API (v1.41).