teleren/devto huggingface dataset:
Deploy Three tier architecture with the help of Terraform modules.
Tags: devops, aws, opensource, cloud
Published: 2023-03-14 06:56:47

Hello #DEV #community ,
I am thrilled to share that our team has successfully deployed a three-tier architecture using #terraform modules! This has been a fantastic accomplishment for our #organization and I wanted to share some of the details with all of you.
For those who may not be familiar, a three-tier architecture consists of three layers: #presentation , #application , and #data . Each layer is responsible for specific #functions , with the presentation #layer handling user interface, the application layer managing business logic, and the data layer managing storage and retrieval of #information .
Using Terraform #modules allowed us to create a #highly #scalable and #maintainable #infrastructures , reducing the time and effort needed for #deployment and updates. We were able to define and manage each tier separately, ensuring that each layer was properly #configured and functioning before moving on to the next.
Additionally, Terraform modules allowed us to easily update and modify our architecture as our needs evolved, ensuring that our infrastructure was always up to date and optimized for our requirements.
Overall, the use of Terraform modules for deploying our three-tier #architecture was a great success, and I highly recommend it for anyone looking to streamline their #infrastructures deployment process.
Thank you for reading, and please feel free to reach out if you have any questions or comments.

Task Link :- (https://lnkd.in/dUdDmirw)
Data Import Using COPY FROM STDIN & Introduction to the CopyManager Class
Tags: opengauss, database
Published: 2023-03-14 06:53:21

**Data Import Using COPY FROM STDIN**
Run the **COPY FROM STDIN** statement to import data to openGauss in either of the following ways:

**·** Write data into the openGauss database by typing. For details, see COPY.
**·** Import data from a file or database to openGauss through the CopyManager interface driven by JDBC. You can use any parameters in the **COPY** syntax.

**Introduction to the CopyManager Class**
CopyManager is an API class provided by the JDBC driver in openGauss. It is used to import data to the openGauss database in batches.

**Inheritance Relationship of CopyManager**
The CopyManager class is in the **org.opengauss.copy** package and inherits the java.lang.Object class. The declaration of the class is as follows:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/esefgdv34gokluawp370.png)

**Construction Method**
public CopyManager(BaseConnection connection)

throws SQLException

**Common Methods**
Table 1 Common methods of CopyManager

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/cd5wpnc1fg0xck8ogk7s.png)
WHY CCNA (CISCO) CERTIFICATION IS BEST FOR CAREER?
Tags: security, career
Published: 2023-03-14 06:52:07

The Cisco Certified Networking Associate (CCNA) title has surpassed other IT certifications to become the most well-known worldwide.

The major focus of the certification is on obtaining the skills required to stay up with the rapid adoption of technologies in the complex networking environment of today. Your capacity to develop core networking skills is demonstrated by your CCNA certification. Here is a brief that gives you a taste of ITEDUCATIONCENTRE”S ccna course in pune

Why Earn Your CCNA? Is a CCNA certification only for networking experts? The arguments listed below make it clear that the answer to this question is yes!

Identify what makes you a qualified applicant. Recruiting and employment for specialised networking professions are primarily dependent on training and certification programmes, according to a recent survey performed by Cisco through Forrester Consultants. It was also said that four-year degrees come in second place to professional certifications as requirements for jobs. CCNA certificates are one of the factors that hiring managers use to find the top applicants throughout the world. Certifications were 49 percent and a degree 51 percent.

information and skill During the certification process, your knowledge and experience will definitely grow. Whatever level of experience you have in the field, you will surely pick up new skills that will help you progress your career. Throughout the certification process, you will learn about a variety of industry advancements.

Advancement in Career Your chances of progressing up the ladder might rise if you include certificates on your resume or CV. Since the CCNA certification is acknowledged around the world, your work will be applicable practically everywhere you go. Once you have your certification, who knows? You could even receive a raise. Our will help you to learn ccna classes in pune about it with practical impliment.

benefit for the employer Any organisation will confirm that professionals with credentials are capable of working in the competitive field of information technology. An employer can tell you have the knowledge and skills they need if you have a certification.

Conclusion You should start your networking profession right now due to the expected global shortage of skilled networking specialists brought on by increasingly advanced networking technologies. ITEDUCATIONCENTRE can help you get started with certification of [ccna  training in pune](https://www.iteducationcentre.com/ccna-course-in-pune-area.php) that is provided by licenced professionals with years of experience.
I've made a Free drag and drop React Template Builder
Tags: react, webdev, opensource
Published: 2023-03-14 06:51:16

Hi,

I just launched reactbuilder.dev, a Free drag and drop react template builder. It currently works with ReactJS + Chakra UI but many more integrations and themes are coming soon.

You can check it here: [reactbuilder.dev](https://www.reactbuilder.dev)

Any feedback is really helpfull.
Importing Data & Running the INSERT Statement to Insert Data
Tags: opengauss, database
Published: 2023-03-14 06:50:06

**Importing Data**
You can use **INSERT, COPY**, or **\copy** (a gsql meta-command) to import data to the openGauss database. The methods have different characteristics. For details, see Table 1.

Table 1 Import modes

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/oxpnfupcq1gn2eyi1jts.png)

**Running the INSERT Statement to Insert Data**

Run the INSERT statement to write data into the openGauss database in either of the following ways:

**·** Use the client tool provided by the openGauss database to write data into openGauss.

For details, see Inserting Data to Tables.

**·** Connect to the database using the JDBC or ODBC driver and run the **INSERT** statement to write data into the openGauss database.

For details, see Connecting to a Database.

You can add, modify, and delete database transactions for the openGauss database. **INSERT** is the simplest way to write data and applies to scenarios with small data volume and low concurrency.
Why we should use Laravel Homestead?
Tags: laravel, php
Published: 2023-03-14 06:38:13

Due to its incredible efficiency during the development process, Laravel Homestead has been making the rounds on the internet for some time. Laravel is among the easiest-to-use and most dependable PHP frameworks for web developers. The official pre-packaged vagrant box for Laravel provides an outstanding development environment. It is called Laravel Homestead. 

As it is so effective in the [development process](https://vteams.com/developers/laravel/reasons-to-use-laravel-homestead/), Laravel Homestead has been making the rounds on the internet. Laravel is one of the most accessible and dependable PHP frameworks for web developers. The official pre-configured vagrant machine for Laravel, called Laravel Homestead, provides a fantastic development environment. since your local PC does not need to be installed with any server software. With Homestead, you can create incredible Laravel applications because it comes with the Nginx web server, MySQL, Radis, and Memcached.
How to Install PySpark and Essential Commands to Use
Published: 2023-03-14 06:38:11

Apache Spark is a fast and general-purpose cluster computing system that allows you to process large amounts of data quickly. PySpark is the Python API for Apache Spark, which allows you to use Spark with Python programming language. In this tutorial, we'll go over how to install PySpark and some essential commands you can use to work with Spark dataframes.

**Installing PySpark**

Before you can start using PySpark, you need to install it on your computer. Here's how to do it:

**Step 1: Install Java**

Apache Spark requires Java to run, so you'll need to install Java on your computer if you haven't already. You can download Java from the Oracle website or use your operating system's package manager to install it.

**Step 2: Download Spark**

Next, you need to download Apache Spark from the official website. Choose the latest version that matches your operating system and download it.

**Step 3: Extract the Spark archiv**e

Once you've downloaded Spark, extract the archive to a directory of your choice. For example, on Linux, you can extract the archive using the following command:

```
tar -xzf spark-3.2.0-bin-hadoop3.2.tgz
```

**Step 4: Set the SPARK_HOME environment variable**

To use PySpark, you need to set the SPARK_HOME environment variable to the directory where you extracted Spark. For example, on Linux, you can add the following line to your .bashrc file:

```
export SPARK_HOME=/path/to/spark
```

**Step 5: Install PySpark**

You can install PySpark using pip, the Python package manager. Open a terminal and run the following command:

```
pip install pyspark
```

**Essential Commands to Use with PySpark**

Now that you've installed PySpark, let's go over some essential commands you can use to work with Spark dataframes.

**Creating a SparkSession**
The SparkSession is the entry point to Spark and is used to create Spark dataframes. Here's how to create a SparkSession:

```
from pyspark.sql import SparkSession

spark = SparkSession.builder.appName("myApp").getOrCreate()
```

**Reading data from a file**
You can read data from a file using the read method of the SparkSession object. Here's how to read a CSV file:

```
df = spark.read.csv("path/to/file.csv", header=True)
```

**Viewing the schema**
You can view the schema of a Spark dataframe using the printSchema method:

```
df.printSchema()
```

**Selecting columns**
You can select columns from a Spark dataframe using the select method:

```
df2 = df.select("column1", "column2")
```

**Filtering rows**
You can filter rows from a Spark dataframe using the filter method:

```
df2 = df.filter(df.column1 > 10)
```

**Aggregating data**
You can aggregate data in a Spark dataframe using the groupBy and agg methods:

```
df2 = df.groupBy("column1").agg({"column2": "sum"})
```

**Joining dataframes**
You can join two Spark dataframes using the join method:

```
df3 = df1.join(df2, on="column1")
```

**Conclusion**

In this tutorial, we've gone over how to install PySpark and some essential commands you can use to work with Spark dataframes. PySpark
Conventional Commits to keep git history clean
Tags: git, productivity, ai, opensource
Published: 2023-03-14 06:32:21

[Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) is a specification for adding human and machine readable meaning to commit messages


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/sc9o0gefbc5jj6afw2lw.png)



Here are the types of Conventional Commits:

`feat` — adds a new feature.
```
feat: Add login page
```

`fix` — fixes a bug.
```
fix(api): Return 404 for invalid endpoints
```

`docs` — add/update a documentation, no code is touched
```
docs(readme): Update installation instructions
```

`chore` — update deps
```
chore: Update dependencies
```

Using Conventional Commits can help make your commit messages clearer and easier to understand. By using a consistent format, you can convey important information about the changes you made and help others understand the progress of your project.

---

i was tired of lame 1 line commits and wasting time switching context and recalling the changes I have made, so I open-sourced a library [OpenCommit](https://github.com/di-sukharev/opencommit) that makes conventional commits for you in just 2 keys `oc` typed in a terminal.

i know it's impressive, i'll probably impress the world more with other extraordinary inventions, you may follow my bird [twitter](https://twitter.com/io_Y_oi)
build and deploy questions and answers ai web app
Tags: webdev, beginners, tutorial, python
Published: 2023-03-14 06:24:31

Looking for an interactive and engaging way to share your knowledge and connect with others online? Look no further than TechnicBate's latest creation - a [question and answer web app](https://technicbate.blogspot.com/2023/03/question-answer-web-app.html)!

Whether you're an expert in a particular field, or simply curious about the world around you, this web app provides a platform for you to ask and answer questions, share your insights, and connect with like-minded individuals.

With its user-friendly interface and intuitive design, this app is perfect for anyone looking to expand their knowledge, connect with others, or simply have fun engaging in stimulating conversations.

So why not give it a try? Whether you're looking to learn something new, or simply want to connect with others who share your interests, [TechnicBate's](https://technicbate.blogspot.com/) question and answer web app is the perfect place to start. So what are you waiting for? Start asking and answering questions today!
Web Animation Design for Solar Panel Monitoring System
Tags: webanimation, webdesign, solarpanel
Published: 2023-03-14 06:13:55

Solar panel monitoring web animation designed to help users keep track of their solar panel performance. This web app Design can provide detailed information on the energy output, the weather conditions, and other factors that affect the efficiency of the solar panels.

With this information, users can make informed decisions about how to optimize their energy production and save money. Web design for these types of projects should focus on providing an easy-to-use interface that allows users to access all the information they need quickly.

Additionally, Responsive web app design should include features such as Customer reviews so that users can stay up-to-date with any changes in their solar panel performance.

[Click For Full Image Source with animation](https://www.behance.net/gallery/165930925/Web-Animation-Design-for-Solar-Panel-Monitoring-System)


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/in3d7pckjq4humphla95.png)
Journey from Docker file to image to container to deployment.
Published: 2023-03-14 05:09:25

Writing a Docker image involves creating a Dockerfile, which is a text document that contains instructions for building an image. Once the Dockerfile is created, it can be used to build a Docker image using the docker build command. Here are the steps to create a Docker image:

Step 1: Create a Dockerfile

Create a new file named Dockerfile in a directory where you have your code files. Open the Dockerfile in a text editor and add the following lines:

```
FROM python:3.9-slim-buster
WORKDIR /app
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
COPY . .
CMD ["python", "app.py"]

```
Here, we are creating an image based on the python:3.9-slim-buster image, setting the working directory to /app, copying the requirements.txt file, installing the Python dependencies, copying the rest of the files, and setting the command to run app.py with Python.

Step 2: Build the Docker image

Open a terminal or command prompt and navigate to the directory where the Dockerfile is located. Run the following command to build the Docker image:

```
docker build -t my-image .

```

This command will create a new Docker image named my-image based on the Dockerfile in the current directory.

Step 3: Verify the Docker image

Once the build process completes successfully, you can verify that the Docker image is created by running the following command:

```
docker images

```
This command will show you a list of all the Docker images on your system. You should be able to see the my-image image in the list.

That's it! You have successfully created a Docker image. You can now use this image to create Docker containers and run your application.
View and Joined Table Design
Tags: opengauss, database
Published: 2023-03-14 06:09:31

**View Design**
**·** [Proposal] Do not nest views unless they have strong dependency on each other.
**·** [Proposal] Try to avoid collation operations in a view definition.

**Joined Table Design**
**·** [Proposal] Minimize joined columns across tables.
**·** [Proposal] Use the same data type for joined columns.
**·** [Proposal] The names of joined columns should indicate their relationship. For example, they can use the same name.
Vite- React - Typescript
Published: 2023-03-14 06:05:50


In one of my side projects where I was constantly calling components in React, the paths such as ../../../ were bothering me. So, I created a React project with Vite. I had previously tried it with the Craco library, but then I realized that Vite had a more straightforward integration that already supported it, and I wanted to share it with you.

- React
- TypeScript
- Vite


Steps to set this up:

Step 1:

In "vite.config.ts":

```
import * as path from 'path'

export default defineConfig({
plugins: [react()],
resolve: {
alias: [{ find: '@', replacement: path.resolve(__dirname, 'src') }],
},
});
```


Step 2:

In "tsconfig.json":

```

{
"compilerOptions": {
"types": ["node"],
"paths": {
"@/": ["./src/"]
}
},
"include": ["src"],
"references": [{ "path": "./tsconfig.node.json" }]
}

```
Usage:

```
import Comp from '@/components/Loading'
```
Built-in security features in .NET Core
Tags: dotnetcore, dotnet
Published: 2023-03-14 05:56:58

##Built-in security features in .NET Core:

- **Secure coding practices:** .NET Core includes tools and guidelines for secure coding practices, such as the Microsoft Security Code Analysis tool and the Secure Coding Guidelines.

- **Cross-site scripting (XSS) prevention:** .NET Core includes built-in support for preventing cross-site scripting attacks. This includes features such as HTML encoding, content security policy, and anti-forgery tokens.

- **Cross-site request forgery (CSRF) prevention:** .NET Core also includes built-in support for preventing cross-site request forgery attacks. This includes the anti-forgery token feature mentioned above, as well as other features like automatic generation of CSRF tokens and verification of the HTTP Referer header.

- **Authentication and authorization:** .NET Core includes built-in support for authentication and authorization. This includes support for various authentication methods (such as cookies, tokens, and OAuth), as well as support for role-based and policy-based authorization.

- **Secure communication:** .NET Core includes support for secure communication using HTTPS, TLS, and SSL. It also includes support for certificate validation and certificate pinning.

- **Security headers:** .NET Core allows you to easily add security headers to your HTTP responses. These headers can help protect your application against various attacks, such as cross-site scripting and clickjacking.

- **Data protection:** .NET Core includes built-in support for protecting sensitive data, such as passwords and keys. This includes features like data encryption and secure storage of keys and secrets.

These built-in security features can help you develop more secure applications with fewer vulnerabilities. However, it's important to keep in mind that security is a continuous process and requires ongoing attention and updates to stay ahead of new threats and vulnerabilities
Difference between pulling and building an image.
Published: 2023-03-14 05:42:39

In Docker, pulling an image means downloading an existing image from a registry, such as Docker Hub, to your local system. On the other hand, building an image means creating a new Docker image using a Dockerfile and the source code of your application.

Here are some key differences between pulling and building an image in Docker:

Source of the image: When you pull an image, you're downloading an existing image from a registry, such as Docker Hub. When you build an image, you're creating a new image using a Dockerfile and the source code of your application.

Time required: Pulling an image is usually faster than building an image, as the image is already built and ready to use. Building an image can take longer, especially if your application has a large number of dependencies or requires complex configurations.

Customization: When you pull an image, you're using a pre-built image that may not be customized to your specific needs. When you build an image, you can customize it to include the specific dependencies and configurations required by your application.

Dependency management: When you pull an image, you're relying on the image's creator to manage the dependencies and configurations. When you build an image, you have control over the dependencies and configurations, and can ensure that they're up-to-date and secure.

Portability: When you pull an image, you're using an existing image that can be run on any system that supports Docker. When you build an image, the image is specific to your local system and may not be portable to other systems without modification.

In summary, pulling an image is a quick and easy way to use an existing Docker image, while building an image provides more control and customization over the dependencies and configurations of your application.