google-gcp

README

google-gcp example

Interacting with google's gcp using google-cloud-go client libraries.

Documentation and reference,

• My gcp cheat sheet
• GCP Go Documentation
• Getting Started with the Google APIs for Go
• Complete list of packages
• GoDoc Package for Compute Engine API
• GoDoc Package for google oath2

GitHub Webpage

OVERVIEW

The gcp SDK for go provides APIs and utilities that developers can use to build go applications that use gcp services.

GO GET

Package compute provides access to the Compute Engine API.

Package oauth2/google provides support for making Oauth2 authorized and authenticated HTTP requests to Google APIs.

go get -u google.golang.org/api/compute/v1
go get -u golang.org/x/oauth2/google

And import them in your go code,

import "google.golang.org/api/compute/v1"
import "golang.org/x/oauth2/google"

INSTANTIATING

Each API has a,

• New function taking an *http.Client and
• Returns an API-specific *Service.

For example,

service, err := compute.New(httpClient)

The HTTP client you pass in to the service must be one that automatically adds Google-supported Authorization information to the requests.

CREDENTIALS - SERVICE ACCOUNTS

To get a service for gce using your google service account would be as follows,

ctx := context.Background()

// Reads credentials from the specified path.
computeService, err := compute.NewService(ctx, option.WithCredentialsFile(jsonPath))
if err != nil {
    log.Fatal(err)
}

Where jsonPath is your google service account file.

LETS USE THE SERVICE

Now that we have the service, lets use it.

Use the service to get your gce image list,

req := computeService.Images.List(project)

Or use the service to get your gce instance list,

req := computeService.Instances.List(project, zone)

RUN

go run gcp.go