/
transform.go
55 lines (47 loc) · 1.67 KB
/
transform.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
package stackit
import (
"context"
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/cloudformation"
"github.com/glassechidna/stackit/pkg/stackit/changeset"
"github.com/pkg/errors"
"time"
)
func (s *Stackit) Transform(ctx context.Context, template string, paramMap map[string]string) (*string, error) {
params := []*cloudformation.Parameter{}
for name, value := range paramMap {
params = append(params, &cloudformation.Parameter{
ParameterKey: aws.String(name),
ParameterValue: aws.String(value),
})
}
stackName := fmt.Sprintf("stackit-temp-%d", time.Now().Unix())
createResp, err := s.api.CreateChangeSetWithContext(ctx, &cloudformation.CreateChangeSetInput{
ChangeSetName: aws.String(fmt.Sprintf("csid-%d", time.Now().Unix())),
StackName: &stackName,
Capabilities: aws.StringSlice([]string{"CAPABILITY_IAM", "CAPABILITY_NAMED_IAM"}),
TemplateBody: &template,
ChangeSetType: aws.String(cloudformation.ChangeSetTypeCreate),
Parameters: params,
})
if err != nil {
return nil, errors.Wrap(err, "creating change set")
}
_, err = changeset.Wait(ctx, s.api, *createResp.Id)
if err != nil {
return nil, errors.Wrap(err, "waiting for change set")
}
getResp, err := s.api.GetTemplateWithContext(ctx, &cloudformation.GetTemplateInput{
ChangeSetName: createResp.Id,
TemplateStage: aws.String(cloudformation.TemplateStageProcessed),
})
if err != nil {
return nil, errors.Wrap(err, "getting template body")
}
_, err = s.api.DeleteStackWithContext(ctx, &cloudformation.DeleteStackInput{StackName: &stackName})
if err != nil {
return nil, errors.Wrap(err, "deleting temporary stack")
}
return getResp.TemplateBody, err
}