💻Dev Environment Setup
Set up your dev environment with dev containers for VS Code.
Code for Life (CFL) has set up their development environment within dev containers for VS Code. In short, dev containers are containerised virtual machines that come preinstalled with all the software and tools necessary for you to develop.
A git submodule is synonymous with a git repository; a submodule is a repo that's nested within the workspace.
VS Code's dev containers allow us to setup your dev environment for you so you don't have to worry about doing it yourself. Furthermore, anytime we make a change to our dev environment, we will git-push the latest dev container to the workspace repo. Then, you can just simply git-pull the latest dev container and rebuild it.
Follow the below steps to setup the CFL workspace in a dev container.
1. Install and set up Git
Git is required to sync your local code changes with our online git repos.
Follow Git's installation instructions and first-time setup instructions.
2. Install Docker Engine
Docker Engine is required to build and run dev containers.
3. Install VS Code
Our dev containers are specifically defined to work within the VS Code IDE.
4. Install the Dev Containers extension in VS Code
Open the Extensions tab (Ctrl+Shift+X) in VS Code.
Search for the "Dev Containers" extension and install it.
5. Fork and clone the CFL workspace
If you're an internal CFL member you can skip this step and the step to set up your CFL workspace and just simply run this command:
git clone --recurse-submodules https://github.com/ocadotechnology/codeforlife-workspace.git
This will clone the workspace itself and recursively clone each repo within the workspace.
Fork our workspace (only the main branch) first and then, in a folder of your choosing on your local machine, clone your fork:
git clone https://github.com/{username}/codeforlife-workspace.git
6. Open the CFL workspace in a Dev Container
In VS Code, open the command palette (Ctrl+Shift+P or go to View > Command Palette...).
Search for the command: ">Dev Containers: Open Workspace in Container..." and select it.
Make sure Docker Engine is running before working with dev containers.
Select the codeforlife.code-workspace file in your local codeforlife-workspace folder.
VS Code will now begin building your dev container. If you wish to see the output of the build as it is happening, click the following prompt in the bottom-right:
At some point, VS Code will reload the window so that it may re-open the code-workspace within the dev container.
The first time the container is built takes some time, as it needs to download its OS and the various software, tools and extensions required for development. The duration of the build will also depend on your internet speed and processing power.
First-time builds have been known to take around 10-15 minutes.
Luckily, this is a one-off; the build is cached and rebuilds will be significantly faster!
If you get build errors stating that some images or dependencies failed to install, it could be due to any VPN / DDoS mitigation software you might have running on your machine or network. Try disabling those temporarily to see if it helps.
7. Set up your CFL workspace
While the workspace is open in VS Code you'll notice there are a few empty folders. These are the repos contained within the workspace, each of which will also need to be forked and cloned (like how you forked and cloned the workspace).
To help you quickly fork and clone the many repos contained within our workspace, we've created a script that runs automatically when you start the workspace's dev container. You'll be prompted to sign into GitHub in VS Code's terminal window.
Sign in with HTTPS and follow GitHub's instructions in the terminal. Once you've successfully authenticated with GitHub, each repo within the workspace should be forked and cloned; the once empty folders should now be populated.
8. Enable source control
You many not need to do this step. If VS Code has disabled source control for the CFL repos you wish to develop for, you'll need to trust the repos within VS Code to enable source-control features like:
checking out branches
pulling, committing and pushing code changes.
With the workspace folder open in VS Code, open the Source Control tab (Ctrl+Shift+G).
Click "Manage Unsafe Repositories". Then, select the one or more CFL repos shown in the drop-down.
9. Set up the repo's virtual environment
This step is only needed if you are working on either the rapid-router or codeforlife-portal repo.
In a new terminal in VS Code, run the following command:
This will install all the dependencies the repo requires for the code to run. Then, activate the virtual environment by running:
Finally, to start working on the project locally, run:
This script will:
run the project's database migrations,
collect the static files,
and start a Django server.
Once the script has finished running, you'll be able to run and view the project locally in your browser by going to localhost:8000.
Any backend changes you make to the code should automatically reload the Django server (a.k.a. hot reloading). HTML changes will also be visible instantly.
However, any JS or CSS changes will require you to manually close the server using Ctrl/Cmd + C and relaunch the run script so that the static files are re-collected.
Enjoy working on the project!
10. Exiting the Dev Container
There are a few different ways you can stop running your VS Code window in a dev container and run it on your local machine instead.
Close the VS Code window and open a new window.
Open a local folder in the existing VS Code window ([Ctrl+K Ctrl+O] or go to
File > Open Folder...).Reopen the current folder locally by either:
Opening the command palette (Ctrl+Shift+P or go to
View > Command Palette...) and typing ">Dev Containers: Reopen Folder Locally".Clicking the Dev Container toolbox in the bottom-left of your VS Code window and selecting
Reopen Folder Locally.
Close the connection to the dev container by either:
Opening the command palette (Ctrl+Shift+P or go to
View > Command Palette...) and typing ">Remote: Close Remote Connection".Clicking the Dev Container toolbox in the bottom-left of your VS Code window and selecting
Close Remote Connection.
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