Tip: Our Bootstrap tutorials will help you to learn the basic as well as advanced features of the Bootstrap step-by-step through easy-to-understand explanation of every topic. If you're a beginner, start with the basics and gradually move forward by learning a little bit every day.
As a first step in this tutorial, we will create a simple HTML template as a base where we will use Bootstrap. For that, the first thing you want to do is create a folder on your computer or server for the project files. In this case, we will simply call it bootstrap. Here, create a new text file and call it index.html. Open it with a text editor of your choice (e.g. Notepad++) and then paste the code below into it.
As a next step, you probably want to add a page title in the form of a heading plus some body text. That way, your visitors will know immediately which site they are on and what they can expect from it.
Thanks to this basic Bootstrap tutorial, you have learned enough to keep moving forward by yourself. So, if you want to dive deeper into the framework, a good starting point is W3Schools or the Bootstrap documentary we have referenced throughout this post. You can also use our bootstrap cheat sheet for beginners to learn more. It is downloadable as PDF and PNG.
There are no specific skills needed for this tutorial beyond a basic comfort with the command line and using a text editor. This tutorial uses git clone to clone the repository locally. If you don't have Git installed on your system, either install it or remember to manually download the zip files from Github. Prior experience in developing web applications will be helpful but is not required. As we proceed further along the tutorial, we'll make use of a few cloud services. If you're interested in following along, please create an account on each of these websites:
Let's start by taking baby-steps. The first thing we're going to look at is how we can run a dead-simple static website. We're going to pull a Docker image from Docker Hub, run the container and see how easy it is to run a webserver.
The next step now is to create an image with this web app. As mentioned above, all user images are based on a base image. Since our application is written in Python, the base image we're going to use will be Python 3.
Note: One thing that I'd like to clarify before we go ahead is that it is not imperative to host your image on a public registry (or any registry) in order to deploy to AWS. In case you're writing code for the next million-dollar unicorn startup you can totally skip this step. The reason why we're pushing our images publicly is that it makes deployment super simple by skipping a few intermediate configuration steps.
Congratulations! You have deployed your first Docker application! That might seem like a lot of steps, but with the command-line tool for EB you can almost mimic the functionality of Heroku in a few keystrokes! Hopefully, you agree that Docker takes away a lot of the pains of building and deploying applications in the cloud. I would encourage you to read the AWS documentation on single-container Docker environments to get an idea of what features exist.
The first step, however, is to install Docker Compose. If you're running Windows or Mac, Docker Compose is already installed as it comes in the Docker Toolbox. Linux users can easily get their hands on Docker Compose by following the instructions on the docs. Since Compose is written in Python, you can also simply do pip install docker-compose. Test your installation with -
Now that we have it installed, we can jump on the next step i.e. the Docker Compose file docker-compose.yml. The syntax for YAML is quite simple and the repo already contains the docker-compose file that we'll be using.
The first step is to install the CLI. Instructions to install the CLI on both Mac and Linux are explained very clearly in the official docs. Go ahead, install the CLI and when you are done, verify the install by running
Next, we'll be working on configuring the CLI so that we can talk to ECS. We'll be following the steps as detailed in the official guide on AWS ECS docs. In case of any confusion, please feel free to refer to that guide.
The first step will involve creating a profile that we'll use for the rest of the tutorial. To continue, you'll need your AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY. To obtain these, follow the steps as detailed under the section titled Access Key and Secret Access Key on this page.
The last and final step is where we'll use our docker-compose.yml file. We'll need to make a few minor changes, so instead of modifying the original, let's make a copy of it. The contents of this file (after making the changes) look like (below) -
The only changes we made from the original docker-compose.yml are of providing the mem_limit (in bytes) and cpu_shares values for each container and adding some logging configuration. This allows us to view logs generated by our containers in AWS CloudWatch. Head over to CloudWatch to create a log group called foodtrucks. Note that since ElasticSearch typically ends up taking more memory, we've given around 3.4 GB of memory limit. Another thing we need to do before we move onto the next step is to publish our image on Docker Hub.
Next to Network settings, chooseEdit. For Security group name,you'll see that the wizard created and selected a security group for you. Youcan use this security group, or alternatively you can select the security groupthat you created when getting set up using the following steps:
After you've finished with the instance that you created for this tutorial, you shouldclean up by terminating the instance. If you want to do more with this instance beforeyou clean up, see Next steps.
Scala is a very compatible language and thus can very easily be installed into the Windows and the Unix operating systems both very easily. Since Scala is a lot similar to other widely used languages syntactically, it is easier to code and learn in Scala. scala programs can be written on any plain text editor like notepad, notepad++, or anything of that sort. One can also use an online IDE for writing Scala codes or can even install one on their system to make it more feasible to write these codes because IDEs provide a lot of features like intuitive code editor, debugger, compiler, etc. To begin with, writing Scala Codes and performing various intriguing and useful operations, one must have scala installed on their system. This can be done by following the step by step instructions provided below:
Keep in mind that these instructions are a starting point. You may need to change some of the steps to harden your environment when running in production. For more detailed information, visit our Kong Gateway documentation.
My goal in this Angular real world example tutorial is to provide a complete guide for you to learn Angular step by step. We will start explaining the why's and basic concepts and then continue exploring more advanced notions.
We want to help beginners through their first steps on the Angular world. As developers, we know that starting with a new technology can sometimes be a bit frustrating so want to help here. We will learn enough core Angular to get started and gain confidence that we can build any kind of app with Angular. We will be covering a lot of ground at an introductory level, but also, you will find plenty of references to topics with greater depth.
Moving ahead in this Angular tutorial, let's setup the development environment. After the previous introduction about the current state of the Angular Framework, we are now ready to get started working on our angular app. The best way to learn Angular is by following this step by step tutorial for beginners.
The plan for this tutorial is to build an app that takes you step-by-step from setup to a full-featured example that serves to demonstrate the essential characteristics of a professional application: a sensible project structure, data binding, services, resolvers, pipes, angular material, dependency injection, navigation and remote data access.
In this angular step by step tutorial we went from the basic concepts and why's of Angular Framework to building a complete Angular app using Angular Material components. We explained one by one the main building blocks of an Angular application as well as the best practices for building a complete app with Angular. Also this tutorial shows how to setup your dev environment so you can start developing Angular apps in your computer right now.
Hopefully, you didn't run into any issues with this Learn Angular from scratch step by step tutorial, but if you did, feel free to post in the comments section below. Remember you can get the full source code of this Angular app by clicking the GET THE CODE button from the beginning of this page. 2b1af7f3a8