178 lines
5.5 KiB
YAML
178 lines
5.5 KiB
YAML
command: docker node ls
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aliases: list
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short: List nodes in the swarm
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long: |-
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Lists all the nodes that the Docker Swarm manager knows about. You can filter
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using the `-f` or `--filter` flag. Refer to the [filtering](#filtering) section
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for more information about available filter options.
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> **Note**
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>
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> This is a cluster management command, and must be executed on a swarm
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> manager node. To learn about managers and workers, refer to the
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> [Swarm mode section](https://docs.docker.com/engine/swarm/) in the
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> documentation.
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usage: docker node ls [OPTIONS]
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pname: docker node
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plink: docker_node.yaml
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options:
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- option: filter
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shorthand: f
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value_type: filter
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description: Filter output based on conditions provided
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deprecated: false
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experimental: false
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experimentalcli: false
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kubernetes: false
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swarm: false
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- option: format
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value_type: string
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description: Pretty-print nodes using a Go template
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deprecated: false
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experimental: false
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experimentalcli: false
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kubernetes: false
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swarm: false
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- option: quiet
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shorthand: q
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value_type: bool
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default_value: "false"
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description: Only display IDs
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deprecated: false
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experimental: false
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experimentalcli: false
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kubernetes: false
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swarm: false
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examples: |-
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```bash
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$ docker node ls
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ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
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1bcef6utixb0l0ca7gxuivsj0 swarm-worker2 Ready Active
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38ciaotwjuritcdtn9npbnkuz swarm-worker1 Ready Active
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e216jshn25ckzbvmwlnh5jr3g * swarm-manager1 Ready Active Leader
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```
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> **Note**
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>
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> In the above example output, there is a hidden column of `.Self` that indicates
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> if the node is the same node as the current docker daemon. A `*` (e.g.,
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> `e216jshn25ckzbvmwlnh5jr3g *`) means this node is the current docker daemon.
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### Filtering
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The filtering flag (`-f` or `--filter`) format is of "key=value". If there is more
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than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)
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The currently supported filters are:
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* [id](#id)
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* [label](#label)
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* [membership](#membership)
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* [name](#name)
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* [role](#role)
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#### id
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The `id` filter matches all or part of a node's id.
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```bash
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$ docker node ls -f id=1
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ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
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1bcef6utixb0l0ca7gxuivsj0 swarm-worker2 Ready Active
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```
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#### label
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The `label` filter matches nodes based on engine labels and on the presence of a `label` alone or a `label` and a value. Node labels are currently not used for filtering.
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The following filter matches nodes with the `foo` label regardless of its value.
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```bash
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$ docker node ls -f "label=foo"
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ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
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1bcef6utixb0l0ca7gxuivsj0 swarm-worker2 Ready Active
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```
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#### membership
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The `membership` filter matches nodes based on the presence of a `membership` and a value
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`accepted` or `pending`.
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The following filter matches nodes with the `membership` of `accepted`.
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```bash
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$ docker node ls -f "membership=accepted"
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ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
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1bcef6utixb0l0ca7gxuivsj0 swarm-worker2 Ready Active
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38ciaotwjuritcdtn9npbnkuz swarm-worker1 Ready Active
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```
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#### name
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The `name` filter matches on all or part of a node hostname.
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The following filter matches the nodes with a name equal to `swarm-master` string.
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```bash
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$ docker node ls -f name=swarm-manager1
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ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
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e216jshn25ckzbvmwlnh5jr3g * swarm-manager1 Ready Active Leader
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```
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#### role
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The `role` filter matches nodes based on the presence of a `role` and a value `worker` or `manager`.
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The following filter matches nodes with the `manager` role.
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```bash
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$ docker node ls -f "role=manager"
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ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
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e216jshn25ckzbvmwlnh5jr3g * swarm-manager1 Ready Active Leader
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```
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### Formatting
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The formatting options (`--format`) pretty-prints nodes output
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using a Go template.
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Valid placeholders for the Go template are listed below:
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Placeholder | Description
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-----------------|------------------------------------------------------------------------------------------
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`.ID` | Node ID
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`.Self` | Node of the daemon (`true/false`, `true`indicates that the node is the same as current docker daemon)
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`.Hostname` | Node hostname
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`.Status` | Node status
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`.Availability` | Node availability ("active", "pause", or "drain")
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`.ManagerStatus` | Manager status of the node
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`.TLSStatus` | TLS status of the node ("Ready", or "Needs Rotation" has TLS certificate signed by an old CA)
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`.EngineVersion` | Engine version
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When using the `--format` option, the `node ls` command will either
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output the data exactly as the template declares or, when using the
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`table` directive, includes column headers as well.
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The following example uses a template without headers and outputs the
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`ID`, `Hostname`, and `TLS Status` entries separated by a colon (`:`) for all
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nodes:
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```bash
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$ docker node ls --format "{{.ID}}: {{.Hostname}} {{.TLSStatus}}"
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e216jshn25ckzbvmwlnh5jr3g: swarm-manager1 Ready
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35o6tiywb700jesrt3dmllaza: swarm-worker1 Needs Rotation
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```
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deprecated: false
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min_api_version: "1.24"
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experimental: false
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experimentalcli: false
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kubernetes: false
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swarm: true
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