376 lines
9.2 KiB
Go
376 lines
9.2 KiB
Go
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"os/signal"
|
|
"regexp"
|
|
"strings"
|
|
"syscall"
|
|
|
|
"github.com/cloudskiff/driftctl/pkg/telemetry"
|
|
"github.com/mitchellh/go-homedir"
|
|
"github.com/pkg/errors"
|
|
"github.com/sirupsen/logrus"
|
|
"github.com/spf13/cobra"
|
|
|
|
"github.com/cloudskiff/driftctl/pkg"
|
|
"github.com/cloudskiff/driftctl/pkg/alerter"
|
|
cmderrors "github.com/cloudskiff/driftctl/pkg/cmd/errors"
|
|
"github.com/cloudskiff/driftctl/pkg/cmd/scan/output"
|
|
"github.com/cloudskiff/driftctl/pkg/filter"
|
|
"github.com/cloudskiff/driftctl/pkg/iac/config"
|
|
"github.com/cloudskiff/driftctl/pkg/iac/supplier"
|
|
"github.com/cloudskiff/driftctl/pkg/iac/terraform/state/backend"
|
|
globaloutput "github.com/cloudskiff/driftctl/pkg/output"
|
|
"github.com/cloudskiff/driftctl/pkg/remote"
|
|
"github.com/cloudskiff/driftctl/pkg/resource"
|
|
"github.com/cloudskiff/driftctl/pkg/terraform"
|
|
)
|
|
|
|
func NewScanCmd() *cobra.Command {
|
|
opts := &pkg.ScanOptions{}
|
|
opts.BackendOptions = &backend.Options{}
|
|
|
|
cmd := &cobra.Command{
|
|
Use: "scan",
|
|
Short: "Scan",
|
|
Long: "Scan",
|
|
Args: cobra.NoArgs,
|
|
PreRunE: func(cmd *cobra.Command, args []string) error {
|
|
from, _ := cmd.Flags().GetStringSlice("from")
|
|
|
|
iacSource, err := parseFromFlag(from)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
opts.From = iacSource
|
|
|
|
to, _ := cmd.Flags().GetString("to")
|
|
if !remote.IsSupported(to) {
|
|
return errors.Errorf(
|
|
"unsupported cloud provider '%s'\nValid values are: %s",
|
|
to,
|
|
strings.Join(remote.GetSupportedRemotes(), ","),
|
|
)
|
|
}
|
|
|
|
outputFlag, _ := cmd.Flags().GetString("output")
|
|
out, err := parseOutputFlag(outputFlag)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
opts.Output = *out
|
|
|
|
filterFlag, _ := cmd.Flags().GetStringArray("filter")
|
|
|
|
if len(filterFlag) > 1 {
|
|
return errors.New("Filter flag should be specified only once")
|
|
}
|
|
|
|
if len(filterFlag) == 1 && filterFlag[0] != "" {
|
|
expr, err := filter.BuildExpression(filterFlag[0])
|
|
if err != nil {
|
|
return errors.Wrap(err, "unable to parse filter expression")
|
|
}
|
|
opts.Filter = expr
|
|
}
|
|
|
|
providerVersion, _ := cmd.Flags().GetString("tf-provider-version")
|
|
if err := validateTfProviderVersionString(providerVersion); err != nil {
|
|
return err
|
|
}
|
|
opts.ProviderVersion = providerVersion
|
|
|
|
opts.Quiet, _ = cmd.Flags().GetBool("quiet")
|
|
opts.DisableTelemetry, _ = cmd.Flags().GetBool("disable-telemetry")
|
|
|
|
opts.ConfigDir, _ = cmd.Flags().GetString("config-dir")
|
|
|
|
return nil
|
|
},
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
return scanRun(opts)
|
|
},
|
|
}
|
|
|
|
fl := cmd.Flags()
|
|
fl.Bool(
|
|
"quiet",
|
|
false,
|
|
"Do not display anything but scan results",
|
|
)
|
|
fl.StringArray(
|
|
"filter",
|
|
[]string{},
|
|
"JMESPath expression to filter on\n"+
|
|
"Examples : \n"+
|
|
" - Type == 'aws_s3_bucket' (will filter only s3 buckets)\n"+
|
|
" - Type =='aws_s3_bucket && Id != 'my_bucket' (excludes s3 bucket 'my_bucket')\n"+
|
|
" - Attr.Tags.Terraform == 'true' (include only resources that have Tag Terraform equal to 'true')\n",
|
|
)
|
|
fl.StringP(
|
|
"output",
|
|
"o",
|
|
output.Example(output.ConsoleOutputType),
|
|
"Output format, by default it will write to the console\n"+
|
|
"Accepted formats are: "+strings.Join(output.SupportedOutputsExample(), ",")+"\n",
|
|
)
|
|
fl.StringSliceP(
|
|
"from",
|
|
"f",
|
|
[]string{"tfstate://terraform.tfstate"},
|
|
"IaC sources, by default try to find local terraform.tfstate file\n"+
|
|
"Accepted schemes are: "+strings.Join(supplier.GetSupportedSchemes(), ",")+"\n",
|
|
)
|
|
supportedRemotes := remote.GetSupportedRemotes()
|
|
fl.StringVarP(
|
|
&opts.To,
|
|
"to",
|
|
"t",
|
|
supportedRemotes[0],
|
|
"Cloud provider source\n"+
|
|
"Accepted values are: "+strings.Join(supportedRemotes, ",")+"\n",
|
|
)
|
|
fl.StringToStringVarP(&opts.BackendOptions.Headers,
|
|
"headers",
|
|
"H",
|
|
map[string]string{},
|
|
"Use those HTTP headers to query the provided URL.\n"+
|
|
"Only used with tfstate+http(s) backend for now.\n",
|
|
)
|
|
fl.StringVar(&opts.BackendOptions.TFCloudToken,
|
|
"tfc-token",
|
|
"",
|
|
"Terraform Cloud / Enterprise API token.\n"+
|
|
"Only used with tfstate+tfcloud backend.\n",
|
|
)
|
|
fl.String(
|
|
"tf-provider-version",
|
|
"",
|
|
"Terraform provider version to use.\n",
|
|
)
|
|
fl.BoolVar(&opts.StrictMode,
|
|
"strict",
|
|
false,
|
|
"Includes cloud provider service-linked roles (disabled by default)",
|
|
)
|
|
|
|
configDir, _ := homedir.Dir()
|
|
fl.String(
|
|
"config-dir",
|
|
configDir,
|
|
"Directory path that driftctl uses for configuration.\n",
|
|
)
|
|
|
|
return cmd
|
|
}
|
|
|
|
func scanRun(opts *pkg.ScanOptions) error {
|
|
selectedOutput := output.GetOutput(opts.Output, opts.Quiet)
|
|
|
|
c := make(chan os.Signal)
|
|
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
|
|
|
|
alerter := alerter.NewAlerter()
|
|
providerLibrary := terraform.NewProviderLibrary()
|
|
supplierLibrary := resource.NewSupplierLibrary()
|
|
|
|
iacProgress := globaloutput.NewProgress("Scanning states", "Scanned states", true)
|
|
scanProgress := globaloutput.NewProgress("Scanning resources", "Scanned resources", false)
|
|
|
|
resourceSchemaRepository := resource.NewSchemaRepository()
|
|
|
|
resFactory := terraform.NewTerraformResourceFactory(resourceSchemaRepository)
|
|
|
|
err := remote.Activate(opts.To, opts.ProviderVersion, alerter, providerLibrary, supplierLibrary, scanProgress, resourceSchemaRepository, resFactory, opts.ConfigDir)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Teardown
|
|
defer func() {
|
|
logrus.Trace("Exiting scan cmd")
|
|
providerLibrary.Cleanup()
|
|
logrus.Trace("Exited")
|
|
}()
|
|
|
|
scanner := pkg.NewScanner(supplierLibrary.Suppliers(), alerter)
|
|
|
|
iacSupplier, err := supplier.GetIACSupplier(opts.From, providerLibrary, opts.BackendOptions, iacProgress, resFactory)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
ctl := pkg.NewDriftCTL(scanner, iacSupplier, alerter, resFactory, opts, scanProgress, iacProgress, resourceSchemaRepository)
|
|
|
|
go func() {
|
|
<-c
|
|
logrus.Warn("Detected interrupt, cleanup ...")
|
|
ctl.Stop()
|
|
}()
|
|
|
|
analysis, err := ctl.Run()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
err = selectedOutput.Write(analysis)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !opts.DisableTelemetry {
|
|
telemetry.SendTelemetry(analysis)
|
|
}
|
|
|
|
if !analysis.IsSync() {
|
|
globaloutput.Printf("\nHint: use gen-driftignore command to generate a .driftignore file based on your drifts\n")
|
|
|
|
return cmderrors.InfrastructureNotInSync{}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func parseFromFlag(from []string) ([]config.SupplierConfig, error) {
|
|
|
|
configs := make([]config.SupplierConfig, 0, len(from))
|
|
|
|
for _, flag := range from {
|
|
schemePath := strings.Split(flag, "://")
|
|
if len(schemePath) != 2 || schemePath[1] == "" || schemePath[0] == "" {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(
|
|
fmt.Sprintf(
|
|
"\nAccepted schemes are: %s",
|
|
strings.Join(supplier.GetSupportedSchemes(), ","),
|
|
),
|
|
),
|
|
"Unable to parse from flag '%s'",
|
|
flag,
|
|
)
|
|
}
|
|
|
|
scheme := schemePath[0]
|
|
path := schemePath[1]
|
|
supplierBackend := strings.Split(scheme, "+")
|
|
if len(supplierBackend) > 2 {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(fmt.Sprintf(
|
|
"\nAccepted schemes are: %s",
|
|
strings.Join(supplier.GetSupportedSchemes(), ","),
|
|
),
|
|
),
|
|
"Unable to parse from scheme '%s'",
|
|
scheme,
|
|
)
|
|
}
|
|
|
|
supplierKey := supplierBackend[0]
|
|
if !supplier.IsSupplierSupported(supplierKey) {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(
|
|
fmt.Sprintf(
|
|
"\nAccepted values are: %s",
|
|
strings.Join(supplier.GetSupportedSuppliers(), ","),
|
|
),
|
|
),
|
|
"Unsupported IaC source '%s'",
|
|
supplierKey,
|
|
)
|
|
}
|
|
|
|
backendString := ""
|
|
if len(supplierBackend) == 2 {
|
|
backendString = supplierBackend[1]
|
|
if !backend.IsSupported(backendString) {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(
|
|
fmt.Sprintf(
|
|
"\nAccepted values are: %s",
|
|
strings.Join(backend.GetSupportedBackends(), ","),
|
|
),
|
|
),
|
|
"Unsupported IaC backend '%s'",
|
|
backendString,
|
|
)
|
|
}
|
|
}
|
|
|
|
configs = append(configs, config.SupplierConfig{
|
|
Key: supplierKey,
|
|
Backend: backendString,
|
|
Path: path,
|
|
})
|
|
}
|
|
|
|
return configs, nil
|
|
}
|
|
|
|
func parseOutputFlag(out string) (*output.OutputConfig, error) {
|
|
schemeOpts := strings.Split(out, "://")
|
|
if len(schemeOpts) < 2 || schemeOpts[0] == "" {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(
|
|
fmt.Sprintf(
|
|
"\nAccepted formats are: %s",
|
|
strings.Join(output.SupportedOutputsExample(), ","),
|
|
),
|
|
),
|
|
"Unable to parse output flag '%s'",
|
|
out,
|
|
)
|
|
}
|
|
|
|
o := schemeOpts[0]
|
|
if !output.IsSupported(o) {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(
|
|
fmt.Sprintf(
|
|
"\nValid formats are: %s",
|
|
strings.Join(output.SupportedOutputsExample(), ","),
|
|
),
|
|
),
|
|
"Unsupported output '%s'",
|
|
o,
|
|
)
|
|
}
|
|
|
|
opts := schemeOpts[1:]
|
|
options := map[string]string{}
|
|
|
|
switch o {
|
|
case output.JSONOutputType:
|
|
if len(opts) != 1 || opts[0] == "" {
|
|
return nil, errors.Wrapf(
|
|
cmderrors.NewUsageError(
|
|
fmt.Sprintf(
|
|
"\nMust be of kind: %s",
|
|
output.Example(output.JSONOutputType),
|
|
),
|
|
),
|
|
"Invalid json output '%s'",
|
|
out,
|
|
)
|
|
}
|
|
options["path"] = opts[0]
|
|
}
|
|
|
|
return &output.OutputConfig{
|
|
Key: o,
|
|
Options: options,
|
|
}, nil
|
|
}
|
|
|
|
func validateTfProviderVersionString(version string) error {
|
|
if version == "" {
|
|
return nil
|
|
}
|
|
if match, _ := regexp.MatchString("^\\d+\\.\\d+\\.\\d+$", version); !match {
|
|
return errors.Errorf("Invalid version argument %s, expected a valid semver string (e.g. 2.13.4)", version)
|
|
}
|
|
return nil
|
|
}
|