Install kubernetes
环境:狗东Ubuntu16
Install and Set Up kubectl
The Kubernetes command-line tool, kubectl, allows you to run commands against Kubernetes clusters. You can use kubectl to deploy applications, inspect and manage cluster resources, and view logs. For a complete list of kubectl operations, see Overview of kubectl.
Before you begin
You must use a kubectl version that is within one minor version difference of your cluster. For example, a v1.2 client should work with v1.1, v1.2, and v1.3 master. Using the latest version of kubectl helps avoid unforeseen issues.
Install kubectl on Linux
Install kubectl binary with curl on Linux
-
Download the latest release with the command:
curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl
To download a specific version, replace the
$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)
portion of the command with the specific version.For example, to download version v1.17.0 on Linux, type:
curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.17.0/bin/linux/amd64/kubectl
-
Make the kubectl binary executable.
chmod +x ./kubectl
-
Move the binary in to your PATH.
sudo mv ./kubectl /usr/local/bin/kubectl
-
Test to ensure the version you installed is up-to-date:
kubectl version --client
Install using native package management
Install using other package management
Install kubectl on macOS
Install kubectl binary with curl on macOS
-
Download the latest release:
curl -LO "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl"
To download a specific version, replace the
$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)
portion of the command with the specific version.For example, to download version v1.17.0 on macOS, type:
curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.17.0/bin/darwin/amd64/kubectl
-
Make the kubectl binary executable.
chmod +x ./kubectl
-
Move the binary in to your PATH.
sudo mv ./kubectl /usr/local/bin/kubectl
-
Test to ensure the version you installed is up-to-date:
kubectl version --client
Install with Homebrew on macOS
If you are on macOS and using Homebrew package manager, you can install kubectl with Homebrew.
-
Run the installation command:
brew install kubectl
or
brew install kubernetes-cli
-
Test to ensure the version you installed is up-to-date:
kubectl version --client
Install with Macports on macOS
If you are on macOS and using Macports package manager, you can install kubectl with Macports.
-
Run the installation command:
sudo port selfupdate sudo port install kubectl
-
Test to ensure the version you installed is up-to-date:
kubectl version --client
Install kubectl on Windows
Install kubectl binary with curl on Windows
-
Download the latest release v1.17.0 from this link.
Or if you have
curl
installed, use this command:curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.17.0/bin/windows/amd64/kubectl.exe
To find out the latest stable version (for example, for scripting), take a look at https://storage.googleapis.com/kubernetes-release/release/stable.txt.
-
Add the binary in to your PATH.
-
Test to ensure the version of
kubectl
is the same as downloaded:kubectl version --client
Note: Docker Desktop for Windows adds its own version ofkubectl
to PATH. If you have installed Docker Desktop before, you may need to place your PATH entry before the one added by the Docker Desktop installer or remove the Docker Desktop’skubectl
.
Install with Powershell from PSGallery
If you are on Windows and using Powershell Gallery package manager, you can install and update kubectl with Powershell.
-
Run the installation commands (making sure to specify a
DownloadLocation
):Install-Script -Name install-kubectl -Scope CurrentUser -Force install-kubectl.ps1 [-DownloadLocation <path>]
Note: If you do not specify aDownloadLocation
,kubectl
will be installed in the user’s temp Directory.The installer creates
$HOME/.kube
and instructs it to create a config file -
Test to ensure the version you installed is up-to-date:
kubectl version --client
Note: Updating the installation is performed by rerunning the two commands listed in step 1.
Install on Windows using Chocolatey or Scoop
To install kubectl on Windows you can use either Chocolatey package manager or Scoop command-line installer.
-
Test to ensure the version you installed is up-to-date:
kubectl version --client
-
Navigate to your home directory:
cd %USERPROFILE%
-
Create the
.kube
directory:mkdir .kube
-
Change to the
.kube
directory you just created:cd .kube
-
Configure kubectl to use a remote Kubernetes cluster:
New-Item config -type file
Note: Edit the config file with a text editor of your choice, such as Notepad.
Download as part of the Google Cloud SDK
You can install kubectl as part of the Google Cloud SDK.
- Install the Google Cloud SDK.
-
Run the
kubectl
installation command:gcloud components install kubectl
-
Test to ensure the version you installed is up-to-date:
kubectl version --client
Verifying kubectl configuration
In order for kubectl to find and access a Kubernetes cluster, it needs a kubeconfig file, which is created automatically when you create a cluster using kube-up.sh or successfully deploy a Minikube cluster. By default, kubectl configuration is located at ~/.kube/config
.
Check that kubectl is properly configured by getting the cluster state:
kubectl cluster-info
If you see a URL response, kubectl is correctly configured to access your cluster.
If you see a message similar to the following, kubectl is not configured correctly or is not able to connect to a Kubernetes cluster.
The connection to the server <server-name:port> was refused - did you specify the right host or port?
For example, if you are intending to run a Kubernetes cluster on your laptop (locally), you will need a tool like Minikube to be installed first and then re-run the commands stated above.
If kubectl cluster-info returns the url response but you can’t access your cluster, to check whether it is configured properly, use:
kubectl cluster-info dump
Optional kubectl configurations
Enabling shell autocompletion
kubectl provides autocompletion support for Bash and Zsh, which can save you a lot of typing.
Below are the procedures to set up autocompletion for Bash (including the difference between Linux and macOS) and Zsh.
Install Minikube
This page shows you how to install Minikube, a tool that runs a single-node Kubernetes cluster in a virtual machine on your personal computer.
Confirm Installation
To confirm successful installation of both a hypervisor and Minikube, you can run the following command to start up a local Kubernetes cluster:
Note: For setting the--vm-driver
withminikube start
, enter the name of the hypervisor you installed in lowercase letters where<driver_name>
is mentioned below. A full list of--vm-driver
values is available in specifying the VM driver documentation.
minikube start --vm-driver=<driver_name>
Once minikube start
finishes, run the command below to check the status of the cluster:
minikube status
If your cluster is running, the output from minikube status
should be similar to:
host: Running
kubelet: Running
apiserver: Running
kubeconfig: Configured
After you have confirmed whether Minikube is working with your chosen hypervisor, you can continue to use Minikube or you can stop your cluster. To stop your cluster, run:
minikube stop
Clean up local state
If you have previously installed Minikube, and run:
minikube start
and minikube start
returned an error:
machine does not exist
then you need to clear minikube’s local state:
minikube delete