link to specific node in docear from a document word

#Link to specific node in docear from a document word install#
#Link to specific node in docear from a document word full#
#Link to specific node in docear from a document word portable#
#Link to specific node in docear from a document word software#

Try running it yourself on v15 and above and you get code: 'ERR_UNHANDLED_REJECTION'. It will run (with a warning) on Node.js v14, but will crash on v15 and above. The code above creates a new promise that always rejects. When you type:Įnter fullscreen mode Exit fullscreen mode Once you have Docker installed let's make sure that it works. It will also help demonstrate how Docker fixes our versioning issue. Technically you can get away without it, but in the first couple of steps we're going to run the app locally before we get Docker involved. I also suggest having Node.js installed as well. For this tutorial will will be managing Docker entirely through the command line (though I may use Docker Desktop for screenshots to show what is happening). I recommend Docker Desktop which will give you a nice GUI for working with Docker, however it is not required. It works just as well on Mac and Linux, you simply need to follow the installation instructions for your OS. I am running it on WSL2 on Windows 11 which is a fantastic experience.

#Link to specific node in docear from a document word install#

How you install Docker will depend on the operating system you are running.

#Link to specific node in docear from a document word software#

The only prerequisite software required to have installed for this tutorial is an IDE (code editor, I use VS Code) and Docker. If you follow this tutorial you will have a working application running on your machine and querying a Postgres DB without the need to have either Node.js or Postgres installed. We want to make it easy to test the application with a copy of the database on the developers' local machine, without requiring them to install the database software (in our case PostgreSQL) Your company's project relies on an older version of a tool (in our case Node.js) than the development team has installed on their machine There are two common development issues we will be replicating with this example: This tutorial aims to simulate a a couple of realistic scenarios you might encounter in a work environment, and show how Docker helps to solve those issues. That said, it can be challenging to really demonstrate the need for Docker to those new to the development world who haven't yet experienced a lot of the problems that it solves. So you already know in advance that you will not have any issue with missing dependencies or incorrect versions.

#Link to specific node in docear from a document word portable#

These containers are designed to be extremely portable which means that you can quickly deploy them anywhere, and also scale up your app quickly by simply deploying more copies of your container.Īll you need to do is define the requirements for your environment in the Dockerfile (for example Ubuntu 18, Node.js, etc) and every time your container is started on any machine, it will recreate exactly that environment.

#Link to specific node in docear from a document word full#

It uses a concept it calls containers which are lighter weight (require less resources) than full on virtual machines to create the environment for your application.

You can accomplish this as simply as including a single file called Dockerfile with your project. We will use Docker Compose to connect and network each container together so that they are easy to share among project contributors, and deploy to whatever hosting service you've chosen.ĭocker is a tool that allows you package the environment for running your application along with the application itself. In this tutorial you will learn what Docker is and what purpose it serves by building a fullstack Node.js app complete with frontend and PostgreSQL database. If you find this tutorial helpful, please share it with your friends and colleagues!įor more tutorials like this, follow me on Twitter All code from this tutorial as a complete package is available in this repository.