Run a RedwoodJS Container App

back4app containers is a powerful platform for hosting redwoodjs applications with its ability to automatically deploy dockerized rails apps, you can launch your project in a scalable and flexible environment with ease in this guide, we will walk you through the process of preparing and deploying your redwood application on back4app containers, covering everything from simple projects to more complex setups we will begin with the necessary preparations, then move on to dockerizing the application, testing it locally, pushing the project to github, setting up the project on back4app containers, monitoring deployment, and troubleshooting common issues if you have any questions or comments, feel free to join the conversation in the #containers channel on the back4app community on slack anytime you can also contact us at community\@back4app com 1 prepare your redwood application before deploying your redwoodjs application on back4app containers, you need to prepare your app for deployment here are the steps to follow ensure that your app is up to date and that you are using the latest versions of all dependencies update your packages using yarn upgrade or npm update build your redwoodjs application by running yarn rw build or npm run rw build this will create an optimized production build of your app check for any potential errors or issues by running the app locally using yarn rw serve or npm run rw serve address any problems you encounter before proceeding create a env production file containing all necessary environment variables for your production build make sure not to include sensitive information such as api keys or passwords in this file, as it will be pushed to your github repository add a gitignore file to exclude any unnecessary files or folders from being pushed to your github repository make sure to include the node modules folder, env files (except for env production ), and any build artifacts 2 dockerization dockerizing your redwoodjs application is an essential step to deploy it on back4app containers create a dockerfile in the root directory of your project with the following content from node 14 workdir /app copy package json yarn lock / run yarn install copy run yarn rw build env node env=production cmd \["yarn", "rw", "serve"] this dockerfile specifies a node js 14 base image, sets the working directory, installs the required dependencies, and builds the redwoodjs application in production mode 3 test your project locally before pushing your project to github, test the dockerized application locally build the docker image by running the following command in your project directory docker build t my redwood app then, run the container using the following command docker run p 8910 8910 my redwood app your app should now be accessible at http //localhost 8910 test the app to ensure it works as expected 4 push your project to github once you have tested your dockerized app locally, it's time to push the project to a github repository if you haven't already, initialize a new git repository in your project directory using git init add all files to the repository and commit the changes git add git add git commit m "initial commit" create a new github repository, then add the remote url to your local repository and push your changes git remote add origin \<your github repo url> git push u origin master your project is now on github and ready for deployment on back4app containers 5 deploy your application on back4app containers to deploy your redwoodjs application on back4app containers, follow these steps log in to your back4app account and navigate to the "containers" section click "create new app" and choose "github" as the deployment source authorize back4app to access your github account and select the repository containing your redwoodjs project choose the appropriate branch and configure any required environment variables click "create" to start the deployment process back4app containers will automatically build and deploy your application using the provided dockerfile 6 monitor deployment and address possible errors while deploying your application on back4app containers, monitor the deployment process and logs to ensure everything is running smoothly in case of any errors or warnings, address them promptly to prevent potential issues to monitor your deployment, navigate to the "logs" tab in your back4app containers dashboard here, you can view the real time logs for your application and diagnose any problems that may occur during deployment 7 troubleshooting common problems here are some common problems you may encounter when deploying and running a redwoodjs application on back4app containers, along with their solutions build or deployment failures if your application fails to build or deploy, check the logs for error messages ensure that your dockerfile is correct, and that all required files and dependencies are present in your github repository runtime errors if your application encounters runtime errors, examine the logs to determine the cause make sure that your env production file contains the correct environment variables and that your application is configured correctly for production application not accessible if your application is not accessible after deployment, ensure that the container is running and that the correct port is exposed in your dockerfile also, verify that the unique url provided by back4app containers is correct performance issues if your application experiences performance issues, such as slow response times or high resource usage, consider optimizing your redwoodjs application or upgrading your back4app containers plan to allocate more resources to your container application crashes if your application crashes unexpectedly, review the logs to identify the cause check for unhandled exceptions, memory leaks, or other issues that may lead to instability address the root cause and redeploy your application by following this guide, you can successfully deploy and manage your redwoodjs application on back4app containers, taking advantage of the platform's powerful features and capabilities to ensure smooth operation and scalability