Write once, run on any cloud ☁️
The Go Cloud Project is an initiative that will allow application developers to seamlessly deploy cloud applications on any combination of cloud providers. It does this by providing stable, idiomatic interfaces for common uses like storage and databases. Think database/sql for cloud products.
A key part of the project is to also provide a code generator called Wire. It creates human-readable code that only imports the cloud SDKs for providers you use. This allows Go Cloud to grow to support any number of cloud providers, without increasing compile times or binary sizes, and avoiding any side effects from init() functions.
Imagine writing this to read from blob storage (like Google Cloud Storage or S3):
blobReader, err := bucket.NewReader(context.Background(), "my-blob")and being able to run that code on any cloud you want, avoiding all the ceremony of cloud-specific authorization, tracing, SDKs and all the other code required to make an application portable across cloud platforms.
go get github.com/google/go-cloud
go get github.com/google/go-cloud/wire/cmd/wireGo Cloud builds at the latest stable release of Go. Previous Go versions may compile but are not supported.
samples/tutorial shows how to get started with the project by using blob storage.
samples/guestbook contains an example guestbook application (just like it's 1999!) that can be run locally, on Google Cloud Platform or on Amazon Web Services. The instructions take about 5 minutes to follow if running locally. If you want to see the guestbook app running on cloud resources, it will take about 30 minutes to follow, and uses Terraform to automatically provision the resources needed.
While in alpha, the API is subject to breaking changes so is not yet suitable for production. We encourage you to experiment with Go Cloud and make contributions to help evolve it to meet your needs!
The GitHub repository at google/go-cloud currently contains Google Cloud Platform and Amazon Web Services implementations as examples to prove everything is working. If you create a repository that implements the Go Cloud interfaces for other cloud providers, let us know and we would be happy to link to it here.
Go Cloud provides generic APIs for:
- Unstructured binary (blob) storage
- Variables that change at runtime (configuration)
- Connecting to MySQL databases
- Server startup and diagnostics: request logging, tracing, and health checking