docker buildx ls
| Description | List builder instances |
|---|---|
| Usage | docker buildx ls |
Description
Lists all builder instances and the nodes for each instance.
$ docker buildx ls NAME/NODE DRIVER/ENDPOINT STATUS BUILDKIT PLATFORMS elated_tesla* docker-container \_ elated_tesla0 \_ unix:///var/run/docker.sock running v0.10.3 linux/amd64 \_ elated_tesla1 \_ ssh://ubuntu@1.2.3.4 running v0.10.3 linux/arm64*, linux/arm/v7, linux/arm/v6 default docker \_ default \_ default running v0.8.2 linux/amd64 Each builder has one or more nodes associated with it. The current builder's name is marked with a * in NAME/NODE and explicit node to build against for the target platform marked with a * in the PLATFORMS column.
Options
| Option | Default | Description |
|---|---|---|
--format | table | Format the output |
--no-trunc | Don't truncate output |
Examples
Format the output (--format)
The formatting options (--format) pretty-prints builder instances output using a Go template.
Valid placeholders for the Go template are listed below:
| Placeholder | Description |
|---|---|
.Name | Builder or node name |
.DriverEndpoint | Driver (for builder) or Endpoint (for node) |
.LastActivity | Builder last activity |
.Status | Builder or node status |
.Buildkit | BuildKit version of the node |
.Platforms | Available node's platforms |
.Error | Error |
.Builder | Builder object |
When using the --format option, the ls command will either output the data exactly as the template declares or, when using the table directive, includes column headers as well.
The following example uses a template without headers and outputs the Name and DriverEndpoint entries separated by a colon (:):
$ docker buildx ls --format "{{.Name}}: {{.DriverEndpoint}}"elated_tesla: docker-container elated_tesla0: unix:///var/run/docker.sock elated_tesla1: ssh://ubuntu@1.2.3.4 default: docker default: default The Builder placeholder can be used to access the builder object and its fields. For example, the following template outputs the builder's and nodes' names with their respective endpoints:
$ docker buildx ls --format "{{.Builder.Name}}: {{range .Builder.Nodes}}\n {{.Name}}: {{.Endpoint}}{{end}}"elated_tesla: elated_tesla0: unix:///var/run/docker.sock elated_tesla1: ssh://ubuntu@1.2.3.4 default: docker default: default 