Hollie  Ratke

Hollie Ratke

1602345600

WSL2 Tips: Limit CPU/Memory When using Docker

The Windows Subsystem for Linux (WSL) is an ultimate feature from Microsoft that enables developers to run a GNU/Linux environment directly on Windows, unmodified, without the overhead of a traditional virtual machine or the dual-boot setup.

In WSL2, they made lots of performance improvement alongside adding new features such as Managed VM, Full Linux Kernel and Full system call compatibility.

If you enable and install WSL-2 on your Windows, in Docker-desktop can use WSL-2 based engine for better performance.

Image for post

Docker Desktop uses the dynamic memory allocation feature in WSL 2 to greatly improve the resource consumption. This means, Docker Desktop only uses the required amount of CPU and memory resources it needs, while enabling CPU and memory-intensive tasks such as building a container to run much faster.

_— _https://docs.docker.com/docker-for-windows/wsl/

Dynamic memory allocation and more CPU power! Looks great! But take a look at the following image:

Image for post

Insane memory consumption : Docker on WSL2

Docker on WSL-2 might allocate all available memory, and it eventually causes memory starvation for OS and other applications.

#windows-10 #wsl #wsl-2 #docker #development

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WSL2 Tips: Limit CPU/Memory When using Docker
Ray  Patel

Ray Patel

1619518440

top 30 Python Tips and Tricks for Beginners

Welcome to my Blog , In this article, you are going to learn the top 10 python tips and tricks.

1) swap two numbers.

2) Reversing a string in Python.

3) Create a single string from all the elements in list.

4) Chaining Of Comparison Operators.

5) Print The File Path Of Imported Modules.

6) Return Multiple Values From Functions.

7) Find The Most Frequent Value In A List.

8) Check The Memory Usage Of An Object.

#python #python hacks tricks #python learning tips #python programming tricks #python tips #python tips and tricks #python tips and tricks advanced #python tips and tricks for beginners #python tips tricks and techniques #python tutorial #tips and tricks in python #tips to learn python #top 30 python tips and tricks for beginners

Iliana  Welch

Iliana Welch

1595249460

Docker Explained: Docker Architecture | Docker Registries

Following the second video about Docker basics, in this video, I explain Docker architecture and explain the different building blocks of the docker engine; docker client, API, Docker Daemon. I also explain what a docker registry is and I finish the video with a demo explaining and illustrating how to use Docker hub

In this video lesson you will learn:

  • What is Docker Host
  • What is Docker Engine
  • Learn about Docker Architecture
  • Learn about Docker client and Docker Daemon
  • Docker Hub and Registries
  • Simple demo to understand using images from registries

#docker #docker hub #docker host #docker engine #docker architecture #api

How to Install, Run and Delete Applications Inside Docker Containers - Part 2

Following the previous Docker article, this tutorial will discuss how to save a Docker container into a new image, remove a container, and run an Nginx web server inside a container.

How To Run and Save a Docker Container

1. In this example, we will run and save an Ubuntu-based Docker container where the Nginx server will be installed. But before committing any changes to a container, first start the container with the below commands which updates and installs Nginx daemon into Ubuntu image:

# docker run ubuntu bash -c "apt-get -y update" 
# docker run ubuntu bash -c "apt-get -y install nginx" 

Install Nginx on Ubuntu Docker Container
Install Nginx on Ubuntu Docker Container

If you get error ‘E: Unable to locate package nginx‘, then you need to connect to a container with interactive CLI and install nginx as shown.

# docker run -it ubuntu bash
# apt install nginx
# exit

2. Next, after Nginx package is installed, issue the command docker ps -l to get the ID or name of the running container.

# docker ps -l

Find Docker Container ID Name
Find Docker Container ID Name

And apply changes by running the below command:

# docker commit 5976e4ae287c ubuntu-nginx

Here, 5976e4ae287c represents the container ID and ubuntu-nginx represents the name of the new image that has been saved with committed changes.

In order to view if the new image has been successfully created just run docker images command and a listing of all saved images will be shown.

# docker images

Docker Container Changes
Docker Container Changes

Chances are that the installation process inside the container finishes fast which leads to a non-running container (container is stopped). In this case the docker ps command won’t show any output because no container is running.

In order to be able to still get the container’s id run docker ps -a | head -3 to output the most recent containers and identify the container based on the command issued to create the container and the exited status.

#centos #docker #nginx #redhat #virtualization #centos tips #docker tips #nginx tips #rhel tips #virtualization

Hollie  Ratke

Hollie Ratke

1602345600

WSL2 Tips: Limit CPU/Memory When using Docker

The Windows Subsystem for Linux (WSL) is an ultimate feature from Microsoft that enables developers to run a GNU/Linux environment directly on Windows, unmodified, without the overhead of a traditional virtual machine or the dual-boot setup.

In WSL2, they made lots of performance improvement alongside adding new features such as Managed VM, Full Linux Kernel and Full system call compatibility.

If you enable and install WSL-2 on your Windows, in Docker-desktop can use WSL-2 based engine for better performance.

Image for post

Docker Desktop uses the dynamic memory allocation feature in WSL 2 to greatly improve the resource consumption. This means, Docker Desktop only uses the required amount of CPU and memory resources it needs, while enabling CPU and memory-intensive tasks such as building a container to run much faster.

_— _https://docs.docker.com/docker-for-windows/wsl/

Dynamic memory allocation and more CPU power! Looks great! But take a look at the following image:

Image for post

Insane memory consumption : Docker on WSL2

Docker on WSL-2 might allocate all available memory, and it eventually causes memory starvation for OS and other applications.

#windows-10 #wsl #wsl-2 #docker #development

Why Use WordPress? What Can You Do With WordPress?

Can you use WordPress for anything other than blogging? To your surprise, yes. WordPress is more than just a blogging tool, and it has helped thousands of websites and web applications to thrive. The use of WordPress powers around 40% of online projects, and today in our blog, we would visit some amazing uses of WordPress other than blogging.
What Is The Use Of WordPress?

WordPress is the most popular website platform in the world. It is the first choice of businesses that want to set a feature-rich and dynamic Content Management System. So, if you ask what WordPress is used for, the answer is – everything. It is a super-flexible, feature-rich and secure platform that offers everything to build unique websites and applications. Let’s start knowing them:

1. Multiple Websites Under A Single Installation
WordPress Multisite allows you to develop multiple sites from a single WordPress installation. You can download WordPress and start building websites you want to launch under a single server. Literally speaking, you can handle hundreds of sites from one single dashboard, which now needs applause.
It is a highly efficient platform that allows you to easily run several websites under the same login credentials. One of the best things about WordPress is the themes it has to offer. You can simply download them and plugin for various sites and save space on sites without losing their speed.

2. WordPress Social Network
WordPress can be used for high-end projects such as Social Media Network. If you don’t have the money and patience to hire a coder and invest months in building a feature-rich social media site, go for WordPress. It is one of the most amazing uses of WordPress. Its stunning CMS is unbeatable. And you can build sites as good as Facebook or Reddit etc. It can just make the process a lot easier.
To set up a social media network, you would have to download a WordPress Plugin called BuddyPress. It would allow you to connect a community page with ease and would provide all the necessary features of a community or social media. It has direct messaging, activity stream, user groups, extended profiles, and so much more. You just have to download and configure it.
If BuddyPress doesn’t meet all your needs, don’t give up on your dreams. You can try out WP Symposium or PeepSo. There are also several themes you can use to build a social network.

3. Create A Forum For Your Brand’s Community
Communities are very important for your business. They help you stay in constant connection with your users and consumers. And allow you to turn them into a loyal customer base. Meanwhile, there are many good technologies that can be used for building a community page – the good old WordPress is still the best.
It is the best community development technology. If you want to build your online community, you need to consider all the amazing features you get with WordPress. Plugins such as BB Press is an open-source, template-driven PHP/ MySQL forum software. It is very simple and doesn’t hamper the experience of the website.
Other tools such as wpFoRo and Asgaros Forum are equally good for creating a community blog. They are lightweight tools that are easy to manage and integrate with your WordPress site easily. However, there is only one tiny problem; you need to have some technical knowledge to build a WordPress Community blog page.

4. Shortcodes
Since we gave you a problem in the previous section, we would also give you a perfect solution for it. You might not know to code, but you have shortcodes. Shortcodes help you execute functions without having to code. It is an easy way to build an amazing website, add new features, customize plugins easily. They are short lines of code, and rather than memorizing multiple lines; you can have zero technical knowledge and start building a feature-rich website or application.
There are also plugins like Shortcoder, Shortcodes Ultimate, and the Basics available on WordPress that can be used, and you would not even have to remember the shortcodes.

5. Build Online Stores
If you still think about why to use WordPress, use it to build an online store. You can start selling your goods online and start selling. It is an affordable technology that helps you build a feature-rich eCommerce store with WordPress.
WooCommerce is an extension of WordPress and is one of the most used eCommerce solutions. WooCommerce holds a 28% share of the global market and is one of the best ways to set up an online store. It allows you to build user-friendly and professional online stores and has thousands of free and paid extensions. Moreover as an open-source platform, and you don’t have to pay for the license.
Apart from WooCommerce, there are Easy Digital Downloads, iThemes Exchange, Shopify eCommerce plugin, and so much more available.

6. Security Features
WordPress takes security very seriously. It offers tons of external solutions that help you in safeguarding your WordPress site. While there is no way to ensure 100% security, it provides regular updates with security patches and provides several plugins to help with backups, two-factor authorization, and more.
By choosing hosting providers like WP Engine, you can improve the security of the website. It helps in threat detection, manage patching and updates, and internal security audits for the customers, and so much more.

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#use of wordpress #use wordpress for business website #use wordpress for website #what is use of wordpress #why use wordpress #why use wordpress to build a website