Since it was available at build, and you probably have not downgraded postgres or libpq right away - it suggests some version conflict. It ensures that the packages received aren’t spoofed. PQresultMemorySize was introduced in postgres 12, since 1.2.0 pg gem checks if it is available during extension build and uses if it is (previously it did not). We need the RVM GPG keys to verify packages. The script is designed to auto-detect the Linux system, then download and install all necessary packages. The installation process of RVM is pretty straightforward, thanks to the installation script RVM offers. Here is a tutorial that details the steps of Installing Ruby on Rails with RVM on Ubuntu.Īs for PostgreSQL, take a look at this quick guide on installing and configuring PostgreSQL on Ubuntu. It can also manage multiple versions of Ruby and switch seamlessly between them. The benefit of this approach is that RVM will create a local installation of Ruby on Rails. It’s a dedicated tool to manage Ruby on Rails installations. They should be available from the default package servers.Īn alternative method is using RVM (Ruby Version Manager). Open your terminal and add a new folder using the terminal mkdir rails-example, now cd into the directory and open the folder with VSCode. Ruby on Rails and PostgreSQLīoth PostgreSQL and Ruby on Rails are available on any UNIX/Linux distribution. This tutorial will guide you through the process of configuring PostgreSQL for your Ruby on Rails application. However, it also supports PostgreSQL integration. By default, Rails assume SQL for database functionalities. It’s a database-agnostic framework, meaning it can work with a wide variety of databases. Ruby on Rails is a popular web framework written in Ruby. Similar to its competitors MySQL and SQLite, PostgreSQL also has its strong and weak points. Because PostgreSQL is a popular choice, it’s supported by almost all major web frameworks. It’s a well-known open-source database system known for its reliability, robust features, and performance. devcontainer folder, add a new file named docker-compose.Among all the available database engines, PostgreSQL is one of the most popular ones. This will allow you to add more services in the future such as Redis or Elasticsearch. well, almost.PostgreSQL is required for this application, so you need to add your own docker-compose and extend the dev container configuration JSON file. If the terminal shows both versions you are good, now you have a ruby on rails container with everything you need to start building a rails application. Open your editor terminal and type ruby -v & rails -v. Wait a couple of minutes and then the editor should reopen with the Dev container tag at the bottom. We can open this folder inside the container with this configuration by pressing ctrl+shift+p again and selecting the "Reopen in Container" option. Inside devcontainer.json there are certain arguments that we can change, such as the ruby and node versions. There are more configurations for other languages, and many more setups in progress (For instance, I've seen an Elixir + Phoenix configuration on a pull request in the Github page of the extension). This will open another panel, click on the "Show All Definitions" option and select "Ruby on Rails". Look for the "Add Development Container Configuration Files." option. Open your terminal and add a new folder using the terminal mkdir rails-example, now cd into the directory and open the folder with VSCodeĮnter fullscreen mode Exit fullscreen mode VSCode with remote containers extension installed.WSL2 installed if you are using windows.In this post, we are going to start a rails application with a PostgreSQL database using dev containers. This guide covers getting up and running with Ruby on Rails. Recently, VSCode has been improving its docker integration with dev containers, this feature makes the process of working with containers easier and gives a smoother integration between the editor and the workspace inside the container (Improving compatibility with extensions, isolated configurations and easier debugging). Currently, I always start creating a dockerfile with a docker-compose file to start a new project, and this always adds another layer of work before starting a new project. I had been using Docker a lot in my development workflow for a while.
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