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Kubernetes is a powerful tool for managing apps in containers. However, to keep things safe, we need to monitor their performance. A dashboard helps us see everything in one place.
In this post, we’ll learn how to make a Kubernetes dashboard with Angular 6 and review some of the best open-source tools for monitoring them. Let’s dive in!
What is an Angular Application?
An Angular application is a type of web app built using the Angular framework, which makes it easier to create fast and interactive websites.
Angular uses a structure called components. Each component is a small part of the app that can work independently. This helps make the app easy to build and change.
Key Features of Angular
Angular has many helpful features. One is TypeScript, a type of JavaScript that finds errors early. It makes the code more transparent and easier to read.
Another feature is two-way data binding. This means changes on the screen update the data right away, helping developers save time.
Why Use Angular for Dashboards?
Using Angular for dashboards is smart. It can handle a lot of data and update quickly, ensuring users see the newest information without delays.
Angular also has navigation tools, which help keep the app organized. Overall, Angular is a good choice for making easy-to-use dashboards.
What is a Docker Image?
A Docker image is a package that holds everything needed to run a software application, including the code, libraries, and settings. Docker images help run apps in containers.
Components of a Docker Image
A Docker image has layers. Each layer adds or changes something in the image. For example, one layer might add a file, and another might change a setting. This layered design makes images small and easy to use.
Docker Images Work: When you use a Docker image, it creates a container. A container is a running version of the image. It works like a small computer with its own environment, keeping your app separate from others.
Benefits of Using Docker Images: Using Docker images has many benefits. First, they ensure apps run the same everywhere, which means there are no surprises when moving to a new machine. Second, they are easy to share. You can upload images to places like Docker Hub.
What is Kubernetes?
Kubernetes is an open-source tool for managing containers which hold software and its settings. Kubernetes helps run these containers smoothly.
Key Features of Kubernetes
Kubernetes has critical features that make it unique. First, it can automatically deploy apps. You don’t have to do it by hand. Second, it can scale apps. If more users come, Kubernetes adds more resources.
Kubernetes Works: Kubernetes organizes containers in groups called pods. Each pod can have one or more containers. This setup helps containers work together. Kubernetes checks if the pods are healthy and running well.
Benefits of Using Kubernetes
Using Kubernetes has many benefits. It saves time by automating tasks and letting developers focus on building apps. It also makes apps more reliable. If a container fails, Kubernetes restarts it quickly, keeping the app running.
Creating a Sample Angular 6 Application
Creating a sample Angular 6 application is easy. You can start with just a few steps. Angular is a popular framework for building web apps. It helps you create user-friendly interfaces.
Step 1: Install Angular CLI
First, you need to install Angular CLI. This is a command-line tool. It helps you create and manage Angular apps. You can install it using npm. Just run this command in your terminal:
npm install -g @angular/cli
Step 2: Create a New Project
Create a new Angular project as follows. Use the Angular CLI command for this. Enter the following into your terminal:
Ng new my-angular-app
Replace “my-angular-app” with your app’s name. This command starts a new project with everything you’ll need.

Step 3: Run the Application
Now, navigate to your project folder. Use this command:
cd my-angular-app
Then, run the application with this command:
ng serve
Your app will start on a local server. Open your web browser and go to http://localhost:4200. You will see your new Angular app running!
Creating a Dockerfile For Angular 6 Application
A Dockerfile helps you package your Angular app and makes it easy to run it in a container. This ensures your app works the same way everywhere.
Step 1: Create a Dockerfile
First, you need to create a file called Dockerfile. Place this file in the root of your Angular project. This file will contain the instructions for building your Docker image.
Step 2: Write the Dockerfile
Now open the Dockerfile file and append the following lines
Use the official Node.js image as a base
FROM node:14
Set the working directory
WORKDIR /app
Copy package.json and install all dependencies
COPY package*.json ./"
RUN npm install
Copy the app source code
COPY.
Build the Angular app
RUN npm run build –prod
Serve the app
CMD [ "px", "HTTP-server", "dist/my-angular-app", "-p", "8080"]
Replace my-angular-app with your project name. This Dockerfile does a few things. It’s initializing the Node.js environment, installing dependencies, and building your app.
Step 3: Build the Docker Image
After creating the Dockerfile, you can build your Docker image. Open your terminal and run this command:
Docker build -t my-angular-app.
This command builds the image and names it my-angular-app. You are now ready to run your Angular app in a Docker container!
Create a Service to Expose Angular Application to the Internet
To share your Angular app with others, you need to expose it to the internet. You can do this by creating a service in Kubernetes. This service will make your app accessible.
Step 1: Define a Service
First, you need to create a YAML file for your service. Name it service. yaml. In this file, you will define how to expose your app.
Here’s a simple example:
apiVersion: v1
kind: Service
metadata:
name: my-angular-app
spec:
type: LoadBalancer
ports:
- port: 80
targetPort: 8080
selector:
app: my-angular-app
Replace my-angular-app with your app’s name. This YAML defines a service that listens on port 80 and sends traffic to your app on port 8080.
Step 2: Apply the Service
Now that you have your service file ready, you can apply it. Open your terminal and run this command:
kubectl apply -f service.yaml
This command tells Kubernetes to create Kubernetes Dashboard the service based on your YAML file.
Step 3: Access Your Application
After applying for the service, it may take a moment to set up. Once ready, you can find the external IP address. Use this command to check the service:
kubectl get services
Look for your service’s external IP address. You can use this IP address to access your Angular app from anywhere!
How to Expose Kubernetes Dashboard?
Exposing the Kubernetes Dashboard from outside your cluster allows you to access it. Let’s go through the steps to do this.
Step 1: Create a Service
First, we need a service. A service helps you connect to the dashboard. You can create this using a simple YAML file.
Here is a basic example:
apiVersion: v1
kind: Service
metadata:
name: Kubernetes-dashboard
namespace: Kubernetes-dashboard
spec:
type: NodePort
ports:
- port: 443
targetPort: 8443
protocol: TCP
selector:
k8s-app: Kubernetes-dashboard
This service file creates a service named Kubernetes-dashboard. It listens to port 443 and directs traffic to port 8443.
Step 2: Apply the Service
Next, you need to apply this service to your cluster. Open your command line and type:
kubectl, apply -f dashboard-service.yaml
Make sure you use the correct name for your YAML file. This command will create the service.
Step 3: Find the Port
Now, let’s find the port number. Run this command:
kubectl get services -n Kubernetes-dashboard
Look for the NodePort in the results. This is the port you will use to access the dashboard.
Step 4: Access the Dashboard
You can now open the dashboard in your web browser. Use this format:
http://<your-node-ip>:<node-port>
Replace <your-node-ip> with the IP address of your Kubernetes node. Replace <node-port> with the port number you found earlier.
Why Angular 6 for Implementing Kubernetes Dashboard?
Angular 6 is a smart choice for building dashboards. Its simple structure and ease of use make it perfect for creating a Kubernetes dashboard. With its great features, Angular 6 helps you build better applications faster.
Advantages of Angular 6 for Web Development
One big plus of Angular 6 is its reusable components. You can create small parts of your app that can be used again, speeding up the building process. You can also change one part without messing up the rest, making it easier to keep your dashboard updated.
Angular 6 also comes with helpful tools. The Command Line Interface (CLI) makes setting up projects simple. You spend less time on setup and more time building the dashboard features you need.
How Angular 6 Enhances Kubernetes Dashboard Functionality
Angular 6 makes your Kubernetes Dashboard user-friendly. It has a feature called two-way data binding, which means any system change shows up right away on the screen. Users see updates instantly, which helps them monitor their Kubernetes clusters easily.
Community Support and Resources: A great reason to use Angular 6 is the strong community behind it. Many resources, like tutorials and forums, are available online. If you have questions, you can find help quickly.
Pre-requisites to Implement a Kubernetes Dashboard Using Angular 6
Before you build a Kubernetes dashboard with Angular 6, you must have some tools ready. Getting the proper setup will make your job easier. Here’s what you need to know.
Tools and Technologies You Need
First, you will need Kubernetes, the platform on which your dashboard will run. Kubernetes helps you manage applications in containers and makes it easy to launch and scale your app.
Next, you need Angular 6. This framework will help you create your dashboard’s user interface. Angular 6 is easy to use and fast, helping you build and update your dashboard quickly.
Setting Up the Development Environment
Installation needs to begin with Node.js. It is quite accessible from the official Node.js site. Depending on the computer system, different versions can be installed. After installation, the Node Package Manager will help you get Angular 6.
Now, you need to install Angular CLI. It will assist you in creating and managing Angular projects. Begin by opening your terminal and typing:
npm install -g @angular/cli
This command installs the Angular CLI globally. Now you can make your Angular 6 application!
Configuring Kubernetes for Your Dashboard
Before you do the installation of Angular, you need to prepare your Kubernetes cluster. It’s always nice to have full access to a running cluster. Otherwise, you can test your application locally with Minikube or deploy it to a cloud service like Google Kubernetes Engine.
You also need to install the command-line tool kubectl. This command-line tool helps you work with your Kubernetes cluster. Please run the following to test whether it is installed
kubectl version
Once you have all these things configured, you are ready to start building your Kubernetes dashboard using Angular 6. Once you have the right tools, everything will go very smoothly.
Conclusion:
Angular 6 is a good choice for making an application in Kubernetes. It is easy to use and also quick to build the app. They can even build a simple interface to monitor applications.
Angular 6 has a vast community and resources that can be used. However, it takes some time to set up. If you are aware of these tools, then the effort will certainly pay off.
That is to say, if you’ve used building a Kubernetes dashboard with Angular 6 as your idea, then it’s a good choice, as you can track your clusters very well. So, go ahead and start your project!
FAQs
1. What is a Kubernetes Dashboard?
The Kubernetes Dashboard is a web-based user interface. It allows you to manage your Kubernetes clusters easily. You can see your applications, manage resources, and view metrics.
2. Does Kubernetes Have a GUI?
Yes, Kubernetes has a GUI. The Kubernetes Dashboard is one example. It provides a visual way to interact with your cluster.
3. What is the Difference Between Kubernetes Dashboard and Rancher?
The Kubernetes Dashboard is built for Kubernetes management. Rancher is a more advanced tool. It can manage multiple clusters and offers more features.
4. What is the Default Dashboard in Kubernetes?
The Kubernetes Dashboard is the default dashboard in Kubernetes. It comes with most Kubernetes installations. You can use it to monitor and manage your cluster.
5. How to Access the Grafana Dashboard in Kubernetes?
To access the Grafana dashboard in Kubernetes, you can use port forwarding. Run the command kubectl port-forward svc/grafana 3000:80. Then, go to http://localhost:3000 in your web browser.
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