cloud-provider-tools

Usage

package main

import (
	"context"
	"fmt"
	"os"
	"time"

	"github.com/sas-fe/cloud-provider-tools/common"
	"github.com/sas-fe/cloud-provider-tools/gce"
)

func main() {
	adc := os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")
	if len(adc) == 0 {
		panic("$GOOGLE_APPLICATION_CREDENTIALS not set")
	}

	projectID := os.Getenv("GCP_PROJECT")
	if len(projectID) == 0 {
		panic("$GCP_PROJECT not set")
	}

	domain := os.Getenv("DOMAIN")
	if len(domain) == 0 {
		panic("$DOMAIN not set")
	}

	dnsZone := os.Getenv("GCP_DNS_ZONE")
	if len(domain) == 0 {
		panic("$GCP_DNS_ZONE not set")
	}

	ctx := context.TODO()

	p, err := gce.NewProvider(projectID, domain, dnsZone)
	if err != nil {
		panic(err)
	}

	clusterName := "test-k8s"
	subDomain := clusterName + "." + "instances"

	fmt.Println("Acquiring global static IP")
	ipResp, err := p.CreateStaticIP(ctx, clusterName, &common.StaticIPRequest{IPType: common.GLOBAL, Region: "us-east1"})
	if err != nil {
		panic(err)
	}
	fmt.Println(ipResp)

	fmt.Println("Creating DNS record")
	dnsResp, err := p.CreateDNSRecord(ctx, subDomain, ipResp.StaticIP)
	if err != nil {
		panic(err)
	}
	fmt.Println(dnsResp)

	fmt.Println("Creating Cluster")
	k8sResp, err := p.CreateK8s(
		ctx,
		clusterName,
		common.ServerRegion("us-east1-c"),
		common.ServerSize("n1-standard-1"),
		common.ServerTags([]string{"OnDemand"}),
	)
	if err != nil {
		panic(err)
	}

	fmt.Println(k8sResp)
	fmt.Println(k8sResp.Credentials)

	fmt.Println("Sleeping for 300 seconds")
	time.Sleep(300 * time.Second)

	fmt.Println("Removing Cluster")
	err2 := p.RemoveK8s(ctx, k8sResp)
	if err2 != nil {
		panic(err2)
	}

	fmt.Println("Removing DNS record")
	err3 := p.RemoveDNSRecord(ctx, dnsResp)
	if err3 != nil {
		panic(err3)
	}

	fmt.Println("Removing static IP")
	err4 := p.RemoveStaticIP(ctx, ipResp)
	if err4 != nil {
		panic(err4)
	}
}

DigitalOcean Provider Settings

Creating DigitalOcean Provider Instance

If using cpt.NewCloudProvider(cpt.DIGITALOCEAN), $DOMAIN and $DO_TOKEN should be set to the target domain and digitalocean API token respectively. Those can also be manually passed in via digitalocean.NewProvider().

Creating DigitalOcean Droplets

The digitalocean provider recognizes several common.ServerOptions to customize droplets. Supported options include:

• Region: e.g. common.ServerRegion("nyc1")
• Size: e.g. common.ServerSize("s-1vcpu-1gb")
• Image ID: e.g. common.ServerImage("31734516")
• Startup Script/User Data: e.g. common.ServerScript("#!/bin/bash\necho 'Hello, World!'")
• Tags: e.g. common.ServerTags([]string{"OnDemand"})

Google Compute Engine Provider Settings

Creating GCE Provider Instance

cpt.NewCloudProvider(cpt.GCE) requires several environment variables to be set:

• $GOOGLE_APPLICATION_CREDENTIALS: service account file path for google ADC
• $GCP_PROJECT: GCP project to use
• $GCP_DNS_ZONE: Cloud DNS manage zone to use
• $DOMAIN: base domain name Those can also be manually passed in via gce.NewProvider().

Creating GCE Instances

The GCE provider recognizes several common.ServerOptions to customize instances. Supported options include:

• Zone: e.g. common.ServerRegion(us-east1-c)
• Machine Type: e.g. common.ServerSize("n1-highcpu-4")
• Source Image: e.g. common.ServerImage("projects/ubuntu-os-cloud/global/images/ubuntu-1604-xenial-v20180912")
• Startup Script/User Data: e.g. common.ServerScript("#!/bin/bash\necho 'Hello, World!'")
• Tags: e.g. common.ServerTags([]string{"OnDemand"})