docker node inspect


Display detailed information on one or more nodes

Swarm This command works with the Swarm orchestrator.

Usage

$ docker node inspect [OPTIONS] self|NODE [NODE...]

Refer to the options section for an overview of available OPTIONS for this command.

Description

Returns information about a node. By default, this command renders all results in a JSON array. You can specify an alternate format to execute a given template for each result. Go’s text/template package describes all the details of the format.

Note

This is a cluster management command, and must be executed on a swarm manager node. To learn about managers and workers, refer to the Swarm mode section in the documentation.

For example uses of this command, refer to the examples section below.

Options

Name, shorthand Default Description
--format , -f Format the output using the given Go template
--pretty Print the information in a human friendly format

Examples

Inspect a node

$ docker node inspect swarm-manager

[
  {
    "ID": "e216jshn25ckzbvmwlnh5jr3g",
    "Version": {
      "Index": 10
    },
    "CreatedAt": "2017-05-16T22:52:44.9910662Z",
    "UpdatedAt": "2017-05-16T22:52:45.230878043Z",
    "Spec": {
      "Role": "manager",
      "Availability": "active"
    },
    "Description": {
      "Hostname": "swarm-manager",
      "Platform": {
        "Architecture": "x86_64",
        "OS": "linux"
      },
      "Resources": {
        "NanoCPUs": 1000000000,
        "MemoryBytes": 1039843328
      },
      "Engine": {
        "EngineVersion": "17.06.0-ce",
        "Plugins": [
          {
            "Type": "Volume",
            "Name": "local"
          },
          {
            "Type": "Network",
            "Name": "overlay"
          },
          {
            "Type": "Network",
            "Name": "null"
          },
          {
            "Type": "Network",
            "Name": "host"
          },
          {
            "Type": "Network",
            "Name": "bridge"
          },
          {
            "Type": "Network",
            "Name": "overlay"
          }
        ]
      },
      "TLSInfo": {
        "TrustRoot": "-----BEGIN CERTIFICATE-----\nMIIBazCCARCgAwIBAgIUOzgqU4tA2q5Yv1HnkzhSIwGyIBswCgYIKoZIzj0EAwIw\nEzERMA8GA1UEAxMIc3dhcm0tY2EwHhcNMTcwNTAyMDAyNDAwWhcNMzcwNDI3MDAy\nNDAwWjATMREwDwYDVQQDEwhzd2FybS1jYTBZMBMGByqGSM49AgEGCCqGSM49AwEH\nA0IABMbiAmET+HZyve35ujrnL2kOLBEQhFDZ5MhxAuYs96n796sFlfxTxC1lM/2g\nAh8DI34pm3JmHgZxeBPKUURJHKWjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMB\nAf8EBTADAQH/MB0GA1UdDgQWBBS3sjTJOcXdkls6WSY2rTx1KIJueTAKBggqhkjO\nPQQDAgNJADBGAiEAoeVWkaXgSUAucQmZ3Yhmx22N/cq1EPBgYHOBZmHt0NkCIQC3\nzONcJ/+WA21OXtb+vcijpUOXtNjyHfcox0N8wsLDqQ==\n-----END CERTIFICATE-----\n",
        "CertIssuerSubject": "MBMxETAPBgNVBAMTCHN3YXJtLWNh",
        "CertIssuerPublicKey": "MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAExuICYRP4dnK97fm6OucvaQ4sERCEUNnkyHEC5iz3qfv3qwWV/FPELWUz/aACHwMjfimbcmYeBnF4E8pRREkcpQ=="
      }
    },
    "Status": {
      "State": "ready",
      "Addr": "168.0.32.137"
    },
    "ManagerStatus": {
      "Leader": true,
      "Reachability": "reachable",
      "Addr": "168.0.32.137:2377"
    }
  }
]

Specify an output format

$ docker node inspect --format '{{ .ManagerStatus.Leader }}' self

false

Use --format=pretty or the --pretty shorthand to pretty-print the output:

$ docker node inspect --format=pretty self

ID:                     e216jshn25ckzbvmwlnh5jr3g
Hostname:               swarm-manager
Joined at:              2017-05-16 22:52:44.9910662 +0000 utc
Status:
 State:                 Ready
 Availability:          Active
 Address:               172.17.0.2
Manager Status:
 Address:               172.17.0.2:2377
 Raft Status:           Reachable
 Leader:                Yes
Platform:
 Operating System:      linux
 Architecture:          x86_64
Resources:
 CPUs:                  4
 Memory:                7.704 GiB
Plugins:
  Network:              overlay, bridge, null, host, overlay
  Volume:               local
Engine Version:         17.06.0-ce
TLS Info:
 TrustRoot:
-----BEGIN CERTIFICATE-----
MIIBazCCARCgAwIBAgIUOzgqU4tA2q5Yv1HnkzhSIwGyIBswCgYIKoZIzj0EAwIw
EzERMA8GA1UEAxMIc3dhcm0tY2EwHhcNMTcwNTAyMDAyNDAwWhcNMzcwNDI3MDAy
NDAwWjATMREwDwYDVQQDEwhzd2FybS1jYTBZMBMGByqGSM49AgEGCCqGSM49AwEH
A0IABMbiAmET+HZyve35ujrnL2kOLBEQhFDZ5MhxAuYs96n796sFlfxTxC1lM/2g
Ah8DI34pm3JmHgZxeBPKUURJHKWjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMB
Af8EBTADAQH/MB0GA1UdDgQWBBS3sjTJOcXdkls6WSY2rTx1KIJueTAKBggqhkjO
PQQDAgNJADBGAiEAoeVWkaXgSUAucQmZ3Yhmx22N/cq1EPBgYHOBZmHt0NkCIQC3
zONcJ/+WA21OXtb+vcijpUOXtNjyHfcox0N8wsLDqQ==
-----END CERTIFICATE-----

 Issuer Public Key: MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAExuICYRP4dnK97fm6OucvaQ4sERCEUNnkyHEC5iz3qfv3qwWV/FPELWUz/aACHwMjfimbcmYeBnF4E8pRREkcpQ==
 Issuer Subject:    MBMxETAPBgNVBAMTCHN3YXJtLWNh

Parent command

Command Description
docker node Manage Swarm nodes
Command Description
docker node demote Demote one or more nodes from manager in the swarm
docker node inspect Display detailed information on one or more nodes
docker node ls List nodes in the swarm
docker node promote Promote one or more nodes to manager in the swarm
docker node ps List tasks running on one or more nodes, defaults to current node
docker node rm Remove one or more nodes from the swarm
docker node update Update a node

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https://docs.docker.com/engine/reference/commandline/node_inspect/