stacks.go

package cdkstat

import (
	"bufio"
	"context"
	"github.com/aws/aws-sdk-go-v2/config"
	"github.com/aws/aws-sdk-go-v2/service/cloudformation"
	"github.com/aws/aws-sdk-go-v2/service/cloudformation/types"
	"log"
	"os"
)

const stackNamesFile = "stacks.csv"

var client *cloudformation.Client

func init() {
	cfg, err := config.LoadDefaultConfig(context.TODO())

	if err != nil {
		panic("unable to load SDK config, " + err.Error())
	}

	client = cloudformation.NewFromConfig(cfg)

}

// GetStatus get States of all Cfn Stacks
func GetStatus() (*cloudformation.DescribeStacksOutput, error) {

	input := &cloudformation.DescribeStacksInput{}

	resp, err := client.DescribeStacks(context.TODO(), input)
	if err != nil {
		log.Fatal(err)
		return nil, err
	}
	return resp, nil
}

// Read saves Stack Names from file
func ReadStacks() *[]string {
	stackNames := make([]string, 10)
	file, err := os.Open(stackNamesFile)
	if err != nil {
		log.Fatal(err)
	}
	defer file.Close()

	scanner := bufio.NewScanner(file)
	for scanner.Scan() {
		line := scanner.Text()
		stackNames = append(stackNames, line)
	}

	if err := scanner.Err(); err != nil {
		log.Fatal(err)
	}
	return &stackNames
}

func ReadStackDetail(stackName *string) (*[]types.StackResource, error) {
	params := &cloudformation.DescribeStackResourcesInput{
		StackName: stackName,
	}
	res, err := client.DescribeStackResources(context.TODO(), params)
	if err != nil {
		log.Fatal(err)
		return nil, err
	}
	return &res.StackResources, nil
}