To download the OpenShift CLI, you'll need to choose the right platform for your operating system. For Windows, you can download the OpenShift CLI from the official Red Hat website.
The OpenShift CLI is available for Windows, macOS, and Linux. You can download it from the official Red Hat website.
Red Hat offers the OpenShift CLI as a single executable file for Windows, which can be downloaded directly from the website. This file includes all the necessary dependencies and tools for the CLI to work properly.
For macOS and Linux, you can download the OpenShift CLI using a package manager, such as Homebrew or yum.
Installation
To download and install the OpenShift CLI, you'll need to navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal. Select the appropriate version in the Version drop-down menu and click Download Now next to the OpenShift v4.11 Windows Client entry and save the file.
You can also download the OpenShift CLI binary by using the command line interface section on the Red Hat OpenShift Cluster Manager site. Select your infrastructure provider, and if applicable, your installation type, and then click Download command-line tools.
Once you've downloaded the OpenShift CLI, you'll need to move the oc binary to a directory that is on your PATH. To check your PATH, open the command prompt and execute the following command: C:\>path.
on macOS
Installing the OpenShift CLI on macOS is a straightforward process. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
To get started, select the appropriate version in the Version drop-down menu. You'll then need to click Download Now next to the OpenShift v4.11 macOS Client entry and save the file. For macOS arm64, choose the OpenShift v4.11 macOS arm64 Client entry.
Unpack and unzip the archive, and then move the oc binary to a directory on your PATH. To check your PATH, open a terminal and execute the following command: $echo $PATH.
Here are the steps to install the OpenShift CLI on macOS:
- Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
- Select the appropriate version in the Version drop-down menu.
- Click Download Now next to the OpenShift v4.11 macOS Client entry and save the file.
- Unpack and unzip the archive.
- Move the oc binary to a directory on your PATH.
Getting Started
Before you start downloading the OpenShift CLI, make sure you have a compatible operating system. You can download the CLI on Linux, macOS, or Windows.
The OpenShift CLI is available in two formats: a binary distribution and a source code distribution. The binary distribution is the most common and recommended choice.
To download the binary distribution, go to the official OpenShift website and click on the "Download" button. Then, select the operating system and architecture of your machine.
You can also verify the integrity of the downloaded file by checking its digital signature. This will ensure that the file has not been tampered with during the download process.
Configuration
Once you've installed the OpenShift CLI, it's time to configure it for use. Run the command `oc login` to log in to your OpenShift environment from the terminal.
This command will display a URL in the terminal output, which you should click on to authenticate. After clicking the blue "Display" button, you'll see a page to complete the login process.
To confirm you're logged in, run the command `oc whoami` to check your current user.
Architecture Overview
As you start configuring OpenShift, it's essential to understand its architecture. The OpenShift CLI's architecture is based on how it interacts with the OpenShift platform, which has several important parts.
The Client Component is the OpenShift CLI itself, introduced on the client's machine or inside a containerized environment. It speaks with the OpenShift API server to execute orders and oversee resources.
The Server For OpenShift API is the focal part of the OpenShift stage, liable for handling API demands from clients (including the CLI) and overseeing assets inside the bunch. It makes RESTful endpoints available for the CLI to use in a variety of ways.
OpenShift gives vigorous validation and approval instruments to control admittance to the stage. Clients confirm themselves utilizing accreditations, for example, usernames and passwords or through other verification techniques like tokens or endorsements.
The OpenShift Cluster is the hidden foundation that has the OpenShift stage, commonly involving numerous hubs (servers) organized by Kubernetes. The group incorporates parts, for example, the etcd appropriated key-esteem store, Kubernetes API server, regulator director, scheduler, and kubelet running on every hub.
OpenShift depends on an network infrastructure to work with correspondence between parts inside the group and with outer frameworks. This incorporates organizing modules like OpenShift SDN (Software Defined Networking) or other outsider answers for systems administration and load balancing.
Here's a quick overview of the OpenShift architecture components:
- Client Component: The OpenShift CLI itself
- Server For OpenShift API: Handles API demands and oversees assets
- Authority And Authentication: Controls admittance to the stage
- OpenShift Cluster: The hidden foundation with numerous hubs organized by Kubernetes
- Network Infrastructure: Manages correspondence between parts and with outer frameworks
Configure the
Now that you have the CLI installed, it's time to authenticate from your terminal to your OpenShift environment. Run the oc login command to log in to OpenShift via the terminal. This will display an output similar to a screenshot with a URL.
Click on the URL in the terminal output. You'll then see a blue Display button, which you'll need to click. After that, you'll be logged into the oc terminal.
To confirm your login, run the following command.
Features
The OpenShift CLI is a powerful tool that offers a wide range of features to manage and deploy applications on the OpenShift platform. With the CLI, you can easily create, update, and delete resources such as projects, deployments, and services.
One of the key features of the OpenShift CLI is its ability to manage resources. This includes creating, updating, and deleting resources like projects, deployments, services, and persistent volumes. The CLI also provides commands for managing storage resources, such as creating and managing persistent volumes and persistent volume claims.
The OpenShift CLI also offers features for scaling and autoscaling applications, which is crucial for ensuring optimal resource utilization and meeting changing demands. With the CLI, you can scale individual components or entire applications evenly or upward, and even set up automated level pod autoscaling (HPA) to adjust resources based on workload.
Here are some of the key features of the OpenShift CLI:
- Resource Management: Create, update, and delete resources like projects, deployments, and services.
- Application Deployment: Deploy containerized applications onto the platform with ease.
- Scaling and Autoscaling: Scale applications to meet changing demands and optimize resource utilization.
- Monitoring and Logging: Monitor application health, resource usage, and infrastructure metrics.
- Security and Access Control: Manage user access, roles, and permissions within the platform.
- Integration: Integrate with other DevOps tools and workflows to streamline your development process.
- Infrastructure Management: Manage infrastructure resources like nodes, storage, and network.
- Developer Productivity: Streamline development tasks and workflows to increase productivity.
What Is?
The OpenShift CLI is a tool for interacting with and managing OpenShift container platform resources from the command line.
It gives developers and team leads a strong and productive method for performing different tasks, such as sending applications and scaling resources. This is a game-changer for those who need to manage multiple projects and workflows efficiently.
The CLI allows you to manage clients and observe the stage, making it easier to stay on top of your projects and identify any issues that may arise.
Advanced Features
The OpenShift CLI has a range of advanced features that make it a powerful tool for managing your applications and infrastructure. With these features, you can automate and streamline your workflows, making it easier to deploy and manage your applications.
One of the advanced features of OpenShift CLI is its support for custom resource definitions (CRDs). This allows you to extend the Kubernetes API and manage custom resources specific to your applications.
OpenShift CLI also supports advanced deployment strategies such as A/B testing, blue-green deployments, and canary releases. These strategies enable you to release and test new versions of applications with minimal downtime and risk.
You can use the OpenShift CLI to manage advanced networking features such as configuring routes, ingress controllers, and handling network policies to control communication between pods.
OpenShift CLI includes commands for managing storage resources, such as creating and managing persistent volumes (PVs) and persistent volume claims (PVCs). This is crucial for applications requiring persistent storage.
The OpenShift CLI allows users to interact with role-based access control (RBAC) features, defining roles and role bindings to control access to resources within the cluster. This enhances security by ensuring that users have the necessary permissions.
Here are some of the advanced features of OpenShift CLI:
- Advanced Deployment Strategies: A/B testing, blue-green deployments, and canary releases
- Custom Resource Definitions (CRDs): Extend the Kubernetes API and manage custom resources
- Advanced Networking: Configure routes, ingress controllers, and network policies
- Storage Management: Create and manage persistent volumes (PVs) and persistent volume claims (PVCs)
- Role-Based Access Control (RBAC): Define roles and role bindings to control access to resources
- Integration with Source Control (Git): Trigger deployments based on changes in Git repositories
- Advanced Logging and Monitoring: Retrieve logs, set up log forwarding, and access metrics and monitoring data
These advanced features make OpenShift CLI a powerful tool for managing your applications and infrastructure. With its support for custom resource definitions, advanced deployment strategies, and other features, you can automate and streamline your workflows, making it easier to deploy and manage your applications.
Frequently Asked Questions
How to install OC command on Windows?
To install OC command on Windows, download and unzip the oc.zip archive, then move the oc binary to a directory on your system's PATH. Check your PATH by opening the command prompt and executing the "path" command.
What is the OpenShift CLI?
The OpenShift CLI, or oc command, is a terminal-based tool for creating and managing OpenShift projects. It's ideal for working directly with project source code.
Sources
- https://docs.redhat.com/en/documentation/openshift_container_platform/4.5/html/installing_on_rhv/cli-installing-cli_installing-rhv-default
- https://docs.openshift.com/container-platform/4.11/cli_reference/openshift_cli/getting-started-cli.html
- https://community.chocolatey.org/packages/openshift-cli
- https://dev.to/thenjdevopsguy/openshift-cli-getting-started-12kg
- https://www.geeksforgeeks.org/openshift-cli/
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