mirror of https://github.com/hashicorp/consul
153 lines
18 KiB
Markdown
153 lines
18 KiB
Markdown
---
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layout: docs
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page_title: Consul K8s CLI Reference
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description: >-
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Consul K8s CLI is a tool for quickly installing and interacting with Consul on Kubernetes.
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---
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# Consul K8s CLI Reference
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Consul K8s CLI is a tool for quickly installing and interacting with Consul on Kubernetes.
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This topic describes the commands, subcommands, and available options for using Consul K8s CLI.
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~> Consul K8s CLI is is currently availabe as a beta release and is not recommended for production environments.
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## Install the Consul K8s CLI
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The [Homebrew](https://brew.sh) package manager is required to complete the following installation instructions.
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1. Install the HashiCorp `tap`, which is a repository of all Homebrew packages for HashiCorp:
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```shell-session
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brew tap hashicorp/tap
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```
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1. Install the Consul K8s CLI with `hashicorp/tap/consul` formula.
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```shell-session
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brew install hashicorp/tap/consul-k8s
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```
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1. If you have already provisioned a Kubernetes cluster and have already configured access to the cluster via a `kubeconfig` file, you are ready to install Consul K8s. Issue the `install` subcommand to install Consul on Kubernetes:
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```shell-session
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consul-k8s install <OPTIONS>
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```
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1. (Optional) Issue the `consul-k8s version` command to verify the installation:
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```shell-session
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consul-k8s version
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consul-k8s 0.36.0
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```
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## Usage
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Consul K8s CLI uses the following syntax:
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```shell-session
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consul-k8s <SUBCOMMAND> <OPTIONS>
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```
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## Subcommands
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You can use the following subcommands with `consul-k8s`.
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### `install`
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The `install` command installs Consul on Kubernetes.
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```shell-session
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consul-k8s install <OPTIONS>
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```
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The following options are available.
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| Flag | Description | Default | Required |
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| --------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------- | -------- |
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| `-auto-approve` | Boolean value that enables you to skip the installation confirmation prompt. | `false` | Optional |
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| `-dry-run` | Boolean value that validates the installation and returns a summary. | `false` | Optional |
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| `-config-file` | String value that specifies the path to a file containing custom installation configurations, e.g., Consul Helm chart values file. <br/> You can use the `-config-file` flag multiple times to specify multiple files. | none | Optional |
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| `-namespace` | String value that specifies the namespace of the Consul installation. | `consul` | Optional |
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| `-preset` | String value that installs Consul based on a preset configuration. You can specify the following values: <br/> `demo`: Installs a single replica server with sidecar injection enabled; useful for testing service mesh functionality. <br/> `secure`: Installs a single replica server with sidecar injection, ACLs, and TLS enabled; useful for testing service mesh functionality. | Configuration of the Consul Helm chart. | Optional |
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| `-set` | String value that enables you to set a customizeable value. This flag is comparable to the `helm install --set` flag. <br/> You can use the `-set` flag multiple times to set multiple values. <br/> Consul Helm chart values are supported. | none | Optional |
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| `-set-file` | String value that specifies the name of an arbitrary config file. This flag is comparable to the `helm install --set-file` <br/> flag. The contents of the file will be used to set a customizeable value. You can use the `-set-file` flag multiple times to specify multiple files. <br/> Consul Helm chart values are supported. | none | Optional |
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| `-set-string` | String value that enables you to set a customizeable string value. This flag is comparable to the `helm install --set-string` <br/> flag. You can use the `-set-string` flag multiple times to specify multiple strings. <br/> Consul Helm chart values are supported. | none | Optional |
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| `-timeout` | Specifies how long to wait for the installation process to complete before timing out. The value is specified with an integer and string value indicating a unit of time. <br/> The following units are supported: <br/> `ms` (milliseconds)<br/>`s` (seconds)<br/>`m` (minutes) <br/>In the following example, installation will timeout after one minute:<br/> `consul-k8s install -timeout 1m` | Optional | `10m` |
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| `-wait` | Boolean value that determines if Consul should wait for resources in the installation to be ready before exiting the command. | Optional | `true` |
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| `-verbose`, `-v` | Boolean value that specifies whether to output verbose logs from the install command with the status of resources being installed. | Optional | `false` |
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| `--help` | Prints usage information for this option. | none | Optional |
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See [Global Options](#global-options) for additional commands that you can use when installing Consul on Kubernetes.
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#### Example Commands
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The following example command installs Consul according in the `myNS` namespace according to the `secure` preset.
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```shell-session
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consul-k8s install -preset=secure -namespace=myNS
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```
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The following example commands install Consul on Kubernetes using custom values, files, or strings that are set via flags. The underlying Consul-on-Kubernetes Helm chart uses the flags to customize the installation. The flags are comparable to the `helm install` [flags](https://helm.sh/docs/helm/helm_install/#helm-install).
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```shell-session
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consul-k8s install -set key=value
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consul-k8s install -set key1=value1 -set key2=value2
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consul-k8s install -set-file config1=value1.conf
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consul-k8s install -set-file config1=value1.conf -set-file config2=value2.conf
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consul-k8s install -set-string key=value-bool
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consul-k8s install -set key1=value1 -set key2=value2
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```
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### `uninstall`
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The `uninstall` command removes Consul from Kubernetes.
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```shell-session
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consul-k8s uninstall <OPTIONS>
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```
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The following options are available.
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| Flag | Description | Default | Required |
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| --------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- | -------- |
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| `-auto-approve` | Boolean value that enables you to skip the removal confirmation prompt. | `false` | Optional |
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| `-name` | String value for the name of the installation to remove. | none | Optional |
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| `-namespace` | String value that specifies the namespace of the Consul installation to remove. | `consul` | Optional |
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| `-timeout` | Specifies how long to wait for the removal process to complete before timing out. The value is specified with an integer and string value indicating a unit of time. <br/> The following units are supported: <br/> `ms` (milliseconds)<br/>`s` (seconds)<br/>`m` (minutes) <br/>`h` (hours) <br/>In the following example, removal will timeout after one minute:<br/> `consul-k8s uninstall -timeout 1m` | Optional | `10m` |
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| `-wipe-data` | Boolan value that deletes PVCs and secrets associated with the Consul installation during installation. <br/> Data will be removed without a verification prompt if the `-auto-approve` flag is set to `true`. | `false` <br/> Instructions for removing data will be printed to the console. | Optional |
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| `--help` | Prints usage information for this option. | none | Optional |
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See [Global Options](#global-options) for additional commands that you can use when uninstalling Consul from Kubernetes.
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#### Example Command
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The following example command immediately uninstalls Consul from the `my-ns` namespace with the name `my-consul` and removes PVCs and secrets associated with the installation without asking for verification:
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```shell-session
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consul-k8s uninstall -namespace=my-ns -name=my-consul -wipe-data=true -auto-approve=true
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```
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## `version`
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The `version` command prints the Consul version.
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```shell-session
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consul-k8s version
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```
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This command does not take any options.
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You can also print the version with the `--version` flag.
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```shell-session
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consul-k8s --version
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```
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## Global Options
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The following global options are available.
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| Flag | Description | Default | Required |
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| ------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- | ------- | -------- |
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| `-context` | String value that sets the Kubernetes context to use for Consul K8s CLI operations. | none | Optional |
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| `-kubeconfig` <br/> Alias: `-c` | String value that specifies the path to the `kubeconfig` file. <br/> | none | Optional |
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