mirror of https://github.com/docker/cli.git
124 lines
4.2 KiB
Markdown
124 lines
4.2 KiB
Markdown
---
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title: "context create"
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description: "The context create command description and usage"
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keywords: "context, create"
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---
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# context create
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```markdown
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Usage: docker context create [OPTIONS] CONTEXT
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Create a context
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Docker endpoint config:
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NAME DESCRIPTION
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from Copy Docker endpoint configuration from an existing context
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host Docker endpoint on which to connect
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ca Trust certs signed only by this CA
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cert Path to TLS certificate file
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key Path to TLS key file
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skip-tls-verify Skip TLS certificate validation
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Kubernetes endpoint config:
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NAME DESCRIPTION
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from Copy Kubernetes endpoint configuration from an existing context
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config-file Path to a Kubernetes config file
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context-override Overrides the context set in the kubernetes config file
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namespace-override Overrides the namespace set in the kubernetes config file
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Example:
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$ docker context create my-context \
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--description "some description" \
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--docker "host=tcp://myserver:2376,ca=~/ca-file,cert=~/cert-file,key=~/key-file"
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Options:
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--default-stack-orchestrator string Default orchestrator for
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stack operations to use with
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this context
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(swarm|kubernetes|all)
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--description string Description of the context
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--docker stringToString set the docker endpoint
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(default [])
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--kubernetes stringToString set the kubernetes endpoint
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(default [])
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--from string Create the context from an existing context
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```
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## Description
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Creates a new `context`. This allows you to quickly switch the cli
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configuration to connect to different clusters or single nodes.
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## Examples
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### Create a context with a docker and kubernetes endpoint
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To create a context from scratch provide the docker and, if required,
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kubernetes options. The example below creates the context `my-context`
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with a docker endpoint of `/var/run/docker.sock` and a kubernetes configuration
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sourced from the file `/home/me/my-kube-config`:
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```bash
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$ docker context create \
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--docker host=unix:///var/run/docker.sock \
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--kubernetes config-file=/home/me/my-kube-config \
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my-context
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```
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### Create a context based on an existing context
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Use the `--from=<context-name>` option to create a new context from
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an existing context. The example below creates a new context named `my-context`
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from the existing context `existing-context`:
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```bash
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$ docker context create --from existing-context my-context
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```
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If the `--from` option is not set, the `context` is created from the current context:
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```bash
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$ docker context create my-context
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```
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This can be used to create a context out of an existing `DOCKER_HOST` based script:
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```bash
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$ source my-setup-script.sh
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$ docker context create my-context
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```
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To source only the `docker` endpoint configuration from an existing context
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use the `--docker from=<context-name>` option. The example below creates a
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new context named `my-context` using the docker endpoint configuration from
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the existing context `existing-context` and a kubernetes configuration sourced
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from the file `/home/me/my-kube-config`:
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```bash
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$ docker context create \
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--docker from=existing-context \
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--kubernetes config-file=/home/me/my-kube-config \
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my-context
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```
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To source only the `kubernetes` configuration from an existing context use the
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`--kubernetes from=<context-name>` option. The example below creates a new
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context named `my-context` using the kuberentes configuration from the existing
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context `existing-context` and a docker endpoint of `/var/run/docker.sock`:
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```bash
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$ docker context create \
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--docker host=unix:///var/run/docker.sock \
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--kubernetes from=existing-context \
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my-context
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```
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Docker and Kubernetes endpoints configurations, as well as default stack
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orchestrator and description can be modified with `docker context update`.
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Refer to the [`docker context update` reference](context_update.md) for details.
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