Deploy apps written in Go to your servers using OpsCaptain

OpsCaptain can deploy Golang apps written with any framework using the Cloud Foundry go-buildpack. From the developers perspective, you simply deploy your code using the CLI and OpsCaptain configures the environment to compile your code, install dependencies using the buildpack and launch the app. If you are interested in understanding how the buildpack works and configure a specific version of Go, you can review the buildpack documentation using this link. OpsCaptain provides a Cloud Foundry compatible environment on your servers so you can run your Go applications effortlessly.

For a list of the supported Go runtime versions, you can review the buildpack release notes found here

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Prerequisites

Install the opscaptain-cli on your local machine and also log in. If you haven't, run the below commands from your terminal to install it and login:

npm install -g opscaptain-cli opscaptain login -em info@opscaptain.com -pw ******

You must have already added the server that will be used to host your Go app. To add a server to your OpsCaptain account, follow this guide here.

If you do not have a server yet, you can purchase a server or use the free tier or credit from one of the following clouds: AWS EC2, Microsoft Azure, Vultr, DigitalOcean and Google


Step 1. Create your app

From the dashboard: Log into the dashboard and create a new app using this link. Select the required database engine. If your app does not require a database, do not make a selection. Once the app and database are created, you can then proceed to deploy your code to it.


Step 2. Create the ocmanifest.json file in your application directory.

You will typically configure the ocmanifest.json file on your first deployment or when you need to change any environment variables.

The below example shows a sample ocmanifest.json file to deploy Go apps:

{ // The name you provided when creating the app in step 1 name: "go-hello-word", // Configure environment variables if any env: { "VARNAME": "VARVALUE" }, buildpacks: ["go"] }

Step 3. Deploy your Go app

CD into the project directory. Once there, run the below command to deploy and that's it.

OpsCaptain also supports Heroku style Procfile which can be used to specify a command to launch your application.

opscaptain deploy