/
bootstrap.go
81 lines (68 loc) · 2.15 KB
/
bootstrap.go
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// Package bootstrap uses Terraform to remove bootstrap resources.
package bootstrap
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/openshift/installer/pkg/asset/cluster"
"github.com/openshift/installer/pkg/terraform"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
// Destroy uses Terraform to remove bootstrap resources.
func Destroy(dir string) (err error) {
metadata, err := cluster.LoadMetadata(dir)
if err != nil {
return err
}
platform := metadata.Platform()
if platform == "" {
return errors.New("no platform configured in metadata")
}
copyNames := []string{terraform.StateFileName, cluster.TfVarsFileName}
if platform == "libvirt" {
err = ioutil.WriteFile(filepath.Join(dir, "disable-bootstrap.auto.tfvars"), []byte(`{
"bootstrap_dns": false
}
`), 0666)
if err != nil {
return err
}
copyNames = append(copyNames, "disable-bootstrap.auto.tfvars")
}
tempDir, err := ioutil.TempDir("", "openshift-install-")
if err != nil {
return errors.Wrap(err, "failed to create temporary directory for Terraform execution")
}
defer os.RemoveAll(tempDir)
for _, filename := range copyNames {
err = copy(filepath.Join(dir, filename), filepath.Join(tempDir, filename))
if err != nil {
return errors.Wrapf(err, "failed to copy %s to the temporary directory", filename)
}
}
logrus.Infof("Using Terraform to destroy bootstrap resources...")
if platform == "libvirt" {
_, err = terraform.Apply(tempDir, platform)
if err != nil {
return errors.Wrap(err, "Terraform apply")
}
}
err = terraform.Destroy(tempDir, platform, "-target=module.bootstrap")
if err != nil {
return errors.Wrap(err, "Terraform destroy")
}
tempStateFilePath := filepath.Join(dir, terraform.StateFileName+".new")
err = copy(filepath.Join(tempDir, terraform.StateFileName), tempStateFilePath)
if err != nil {
return errors.Wrapf(err, "failed to copy %s from the temporary directory", terraform.StateFileName)
}
return os.Rename(tempStateFilePath, filepath.Join(dir, terraform.StateFileName))
}
func copy(from string, to string) error {
data, err := ioutil.ReadFile(from)
if err != nil {
return err
}
return ioutil.WriteFile(to, data, 0666)
}