Docker

In this section you will learn how to get information about docker, images, containers, container stats and processes inside a docker container:

For function reference and examples we assume, that we imported systeminformation as follows:

    const si = require('systeminformation');

## Container, Stats, Processes

All functions in this section return a promise or can be called with a callback function (parameter cb in the function reference)

Function | Result object | Linux | BSD | Mac | Win | Sun | Comments
--- | --- | --- | --- | --- | --- | --- | ---
si.dockerInfo(cb) | {...} | X | X | X | X | X | returns general docker info
| id | X | X | X | X | X | Docker ID
| containers | X | X | X | X | X | number of containers
| containersRunning | X | X | X | X | X | number of running containers
| containersPaused | X | X | X | X | X | number of paused containers
| containersStopped | X | X | X | X | X | number of stopped containers
| images | X | X | X | X | X | number of images
| driver | X | X | X | X | X | driver (e.g. 'devicemapper', 'overlay2')
| memoryLimit | X | X | X | X | X | has memory limit
| SwapLimit | X | X | X | X | X | has swap limit
| kernelMemory | X | X | X | X | X | has kernal memory
| cpuCfsPeriod | X | X | X | X | X | has CpuCfsPeriod
| cpuCfsQuota | X | X | X | X | X | has CpuCfsQuota
| cpuShares | X | X | X | X | X | has CPUShares
| cpuSet | X | X | X | X | X | has CPUShares
| ipv4Forwarding | X | X | X | X | X | has IPv4Forwarding
| bridgeNfIptables | X | X | X | X | X | has BridgeNfIptables
| bridgeNfIp6tables | X | X | X | X | X | has BridgeNfIp6tables
| debug | X | X | X | X | X | Debug on
| nfd | X | X | X | X | X | named data networking forwarding daemon
| oomKillDisable | X | X | X | X | X | out-of-memory kill disabled
| ngoroutines | X | X | X | X | X | number NGoroutines
| systemTime | X | X | X | X | X | docker SystemTime
| loggingDriver | X | X | X | X | X | logging driver e.g. 'json-file'
| cgroupDriver | X | X | X | X | X | cgroup driver e.g. 'cgroupfs'
| nEventsListener | X | X | X | X | X | number NEventsListeners
| kernelVersion | X | X | X | X | X | docker kernel version
| operatingSystem | X | X | X | X | X | docker OS e.g. 'Docker for Mac'
| osType | X | X | X | X | X | OSType e.g. 'linux'
| architecture | X | X | X | X | X | architecture e.g. x86_64
| ncpu | X | X | X | X | X | number of CPUs
| memTotal | X | X | X | X | X | memory total
| dockerRootDir | X | X | X | X | X | docker root directory
| httpProxy | X | X | X | X | X | http proxy
| httpsProxy | X | X | X | X | X | https proxy
| noProxy | X | X | X | X | X | NoProxy
| name | X | X | X | X | X | Name
| labels | X | X | X | X | X | array of labels
| experimentalBuild | X | X | X | X | X | is experimental build
| serverVersion | X | X | X | X | X | server version
| clusterStore | X | X | X | X | X | cluster store
| clusterAdvertise | X | X | X | X | X | cluster advertise
| defaultRuntime | X | X | X | X | X | default runtime e.g. 'runc'
| liveRestoreEnabled | X | X | X | X | X | live store enabled
| isolation | X | X | X | X | X | isolation
| initBinary | X | X | X | X | X | init binary
| productLicense | X | X | X | X | X | product license
si.dockerImages(all, cb) | [{...}] | X | X | X | X | X | returns array of top level/all docker images
| [0].id | X | X | X | X | X | image ID
| [0].container | X | X | X | X | X | container ID
| [0].comment | X | X | X | X | X | comment
| [0].os | X | X | X | X | X | OS
| [0].architecture | X | X | X | X | X | architecture
| [0].parent | X | X | X | X | X | parent ID
| [0].dockerVersion | X | X | X | X | X | docker version
| [0].size | X | X | X | X | X | image size
| [0].sharedSize | X | X | X | X | X | shared size
| [0].virtualSize | X | X | X | X | X | virtual size
| [0].author | X | X | X | X | X | author
| [0].created | X | X | X | X | X | created date / time
| [0].containerConfig | X | X | X | X | X | container config object
| [0].graphDriver | X | X | X | X | X | graph driver object
| [0].repoDigests | X | X | X | X | X | repo digests array
| [0].repoTags | X | X | X | X | X | repo tags array
| [0].config | X | X | X | X | X | config object
| [0].rootFS | X | X | X | X | X | root fs object
si.dockerContainers(all, cb) | [{...}] | X | X | X | X | X | returns array of active/all docker containers
| [0].id | X | X | X | X | X | ID of container
| [0].name | X | X | X | X | X | name of container
| [0].image | X | X | X | X | X | name of image
| [0].imageID | X | X | X | X | X | ID of image
| [0].command | X | X | X | X | X | command
| [0].created | X | X | X | X | X | creation time (unix time)
| [0].started | X | X | X | X | X | started time (unix time)
| [0].finished | X | X | X | X | X | finished time (unix time)
| [0].createdAt | X | X | X | X | X | creation date time string
| [0].startedAt | X | X | X | X | X | creation date time string
| [0].finishedAt | X | X | X | X | X | creation date time string
| [0].state | X | X | X | X | X | created, running, exited
| [0].restartCount | X | X | X | X | X | restart count
| [0].platform | X | X | X | X | X | e.g. linux
| [0].driver | X | X | X | X | X | e.g. overlay2 or devicemapper
| [0].ports | X | X | X | X | X | array of ports
| [0].mounts | X | X | X | X | X | array of mounts
si.dockerContainerStats(ids, cb) | [{...}] | X | X | X | X | X | statistics for specific containers container IDs: space or comma separated, pass '*' for all containers
| [0].id | X | X | X | X | X | Container ID
| [0].memUsage | X | X | X | X | X | memory usage in bytes
| [0].memLimit | X | X | X | X | X | memory limit (max mem) in bytes
| [0].memPercent | X | X | X | X | X | memory usage in percent
| [0].cpuPercent | X | X | X | X | X | cpu usage in percent
| [0].pids | X | X | X | X | X | number of processes
| [0].netIO.rx | X | X | X | X | X | received bytes via network
| [0].netIO.wx | X | X | X | X | X | sent bytes via network
| [0].blockIO.r | X | X | X | X | X | bytes read from BlockIO
| [0].blockIO.w | X | X | X | X | X | bytes written to BlockIO
| [0].restartCount | X | X | X | X | X | restart count
| [0].cpuStats | X | X | X | X | X | detailed cpu stats
| [0].precpuStats | X | X | X | X | X | cpu statistic of previous read
| [0].memoryStats | X | X | X | X | X | detailed memory stats
| [0].networks | X | X | X | X | X | detailed network stats per interface
si.dockerContainerProcesses(id, cb) | [{...}] | X | X | X | X | X | array of processes inside a container
| [0].pidHost | X | X | X | X | X | process ID (host)
| [0].ppid | X | X | X | X | X | parent process ID
| [0].pgid | X | X | X | X | X | process group ID
| [0].user | X | X | X | X | X | effective user name
| [0].ruser | X | X | X | X | X | real user name
| [0].group | X | X | X | X | X | effective group name
| [0].rgroup | X | X | X | X | X | real group name
| [0].stat | X | X | X | X | X | process state
| [0].time | X | X | X | X | X | accumulated CPU time
| [0].elapsed | X | X | X | X | X | elapsed running time
| [0].nice | X | X | X | X | X | nice value
| [0].rss | X | X | X | X | X | resident set size
| [0].vsz | X | X | X | X | X | virtual size in Kbytes
| [0].command | X | X | X | X | X | command and arguments
si.dockerVolumes(cb) | [{...}] | X | X | X | X | X | returns array of docker volumes
| [0].name | X | X | X | X | X | volume name
| [0].driver | X | X | X | X | X | driver
| [0].labels | X | X | X | X | X | labels object
| [0].mountpoint | X | X | X | X | X | mountpoint
| [0].options | X | X | X | X | X | options
| [0].scope | X | X | X | X | X | scope
| [0].created | X | X | X | X | X | created at
si.dockerAll(cb) | {...} | X | X | X | X | X | list of all containers including their stats and processes in one single array