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utils.go
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utils.go
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package yandex
import (
"context"
"encoding/json"
"fmt"
"log"
"net"
"sort"
"strings"
"time"
"github.com/c2h5oh/datasize"
"github.com/golang/protobuf/ptypes"
"github.com/golang/protobuf/ptypes/timestamp"
"github.com/hashicorp/terraform/helper/schema"
"google.golang.org/genproto/googleapis/rpc/errdetails"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/yandex-cloud/go-genproto/yandex/cloud/access"
ycsdk "github.com/yandex-cloud/go-sdk"
"github.com/yandex-cloud/go-sdk/sdkresolvers"
)
type instanceAction int
const (
instanceActionStop instanceAction = iota
instanceActionStart
instanceActionRestart
)
const defaultTimeFormat = time.RFC3339
type Policy struct {
Bindings []*access.AccessBinding
}
func getZone(d *schema.ResourceData, config *Config) (string, error) {
res, ok := d.GetOk("zone")
if !ok {
if config.Zone != "" {
return config.Zone, nil
}
return "", fmt.Errorf("cannot determine zone: please set 'zone' key in this resource or at provider level")
}
return res.(string), nil
}
func getFolderID(d *schema.ResourceData, config *Config) (string, error) {
res, ok := d.GetOk("folder_id")
if !ok {
if config.FolderID != "" {
return config.FolderID, nil
}
return "", fmt.Errorf("cannot determine folder_id: please set 'folder_id' key in this resource or at provider level")
}
return res.(string), nil
}
func handleNotFoundError(err error, d *schema.ResourceData, resourceName string) error {
if isStatusWithCode(err, codes.NotFound) {
log.Printf("[WARN] Removing %s because resource doesn't exist anymore", resourceName)
d.SetId("")
return nil
}
return fmt.Errorf("Error reading %s: %s", resourceName, err)
}
func isStatusWithCode(err error, code codes.Code) bool {
grpcStatus, ok := status.FromError(err)
return ok && grpcStatus.Code() == code
}
func isRequestIDPresent(err error) (string, bool) {
st, ok := status.FromError(err)
if ok {
for _, d := range st.Details() {
if reqInfo, ok := d.(*errdetails.RequestInfo); ok {
return reqInfo.RequestId, true
}
}
}
return "", false
}
func convertStringArrToInterface(sslice []string) []interface{} {
islice := make([]interface{}, len(sslice))
for i, str := range sslice {
islice[i] = str
}
return islice
}
func mergeSchemas(a, b map[string]*schema.Schema) map[string]*schema.Schema {
merged := make(map[string]*schema.Schema, len(a)+len(b))
for k, v := range a {
merged[k] = v
}
for k, v := range b {
merged[k] = v
}
return merged
}
func roleMemberToAccessBinding(role, member string) *access.AccessBinding {
chunks := strings.SplitN(member, ":", 2)
return &access.AccessBinding{
RoleId: role,
Subject: &access.Subject{
Type: chunks[0],
Id: chunks[1],
},
}
}
func mergeBindings(bindings []*access.AccessBinding) []*access.AccessBinding {
bm := rolesToMembersMap(bindings)
var rb []*access.AccessBinding
for role, members := range bm {
for member := range members {
rb = append(rb, roleMemberToAccessBinding(role, member))
}
}
return rb
}
// Map a role to a map of members, allowing easy merging of multiple bindings.
func rolesToMembersMap(bindings []*access.AccessBinding) map[string]map[string]bool {
bm := make(map[string]map[string]bool)
// Get each binding
for _, b := range bindings {
// Initialize members map
if _, ok := bm[b.RoleId]; !ok {
bm[b.RoleId] = make(map[string]bool)
}
// Get each member (user/principal) for the binding
m := canonicalMember(b)
bm[b.RoleId][m] = true
}
return bm
}
func roleToMembersList(role string, bindings []*access.AccessBinding) []string {
var members []string
for _, b := range bindings {
if b.RoleId != role {
continue
}
m := canonicalMember(b)
members = append(members, m)
}
return members
}
func removeRoleFromBindings(roleForRemove string, bindings []*access.AccessBinding) []*access.AccessBinding {
bm := rolesToMembersMap(bindings)
var rb []*access.AccessBinding
for role, members := range bm {
if role == roleForRemove {
continue
}
for member := range members {
rb = append(rb, roleMemberToAccessBinding(role, member))
}
}
return rb
}
func (p Policy) String() string {
result := ""
for i, binding := range p.Bindings {
result = result + fmt.Sprintf("\n#:%d role:%-27s\taccount:%-24s\ttype:%s",
i, binding.RoleId, binding.Subject.Id, binding.Subject.Type)
}
return result + "\n"
}
func convertStringSet(set *schema.Set) []string {
s := make([]string, set.Len())
for i, v := range set.List() {
s[i] = v.(string)
}
return s
}
func shouldSuppressDiffForPolicies(k, old, new string, d *schema.ResourceData) bool {
var oldPolicy, newPolicy Policy
if err := json.Unmarshal([]byte(old), &oldPolicy); err != nil {
log.Printf("[ERROR] Could not unmarshal old policy %s: %v", old, err)
return false
}
if err := json.Unmarshal([]byte(new), &newPolicy); err != nil {
log.Printf("[ERROR] Could not unmarshal new policy %s: %v", new, err)
return false
}
oldPolicy.Bindings = mergeBindings(oldPolicy.Bindings)
newPolicy.Bindings = mergeBindings(newPolicy.Bindings)
if len(newPolicy.Bindings) != len(oldPolicy.Bindings) {
return false
}
sort.Sort(sortableBindings(newPolicy.Bindings))
sort.Sort(sortableBindings(oldPolicy.Bindings))
for pos, newBinding := range newPolicy.Bindings {
oldBinding := oldPolicy.Bindings[pos]
if oldBinding.RoleId != newBinding.RoleId {
return false
}
if oldBinding.Subject.Type != newBinding.Subject.Type {
return false
}
if oldBinding.Subject.Id != newBinding.Subject.Id {
return false
}
}
return true
}
type sortableBindings []*access.AccessBinding
func (b sortableBindings) Len() int {
return len(b)
}
func (b sortableBindings) Swap(i, j int) {
b[i], b[j] = b[j], b[i]
}
func (b sortableBindings) Less(i, j int) bool {
return b.String(i) < b.String(j)
}
func (b sortableBindings) String(i int) string {
return fmt.Sprintf("%s\x00%s\x00%s", b[i].RoleId, b[i].Subject.Type, b[i].Subject.Id)
}
func validateIPV4CidrBlocks(v interface{}, k string) (warnings []string, errors []error) {
_, _, err := net.ParseCIDR(v.(string))
if err != nil {
errors = append(errors, fmt.Errorf("%q is not a valid IP CIDR range: %s", k, err))
}
return
}
// Primary use to store value from API in state file as Gigabytes
func toGigabytes(bytesCount int64) int {
return int((datasize.ByteSize(bytesCount) * datasize.B).GBytes())
}
// Primary use to send byte value to API
func toBytes(gigabytesCount int) int64 {
return int64((datasize.ByteSize(gigabytesCount) * datasize.GB).Bytes())
}
func (action instanceAction) String() string {
switch action {
case instanceActionStop:
return "Stop"
case instanceActionStart:
return "Start"
case instanceActionRestart:
return "Restart"
default:
return "Unknown"
}
}
func getTimestamp(protots *timestamp.Timestamp) (string, error) {
ts, err := ptypes.Timestamp(protots)
if err != nil {
return "", fmt.Errorf("failed to convert protobuf timestamp: %s", err)
}
return ts.Format(defaultTimeFormat), nil
}
func getJoinedKeys(keys []string) string {
return "`" + strings.Join(keys, "`, `") + "`"
}
func checkOneOf(d *schema.ResourceData, keys ...string) error {
var gotKey bool
for _, key := range keys {
_, ok := d.GetOk(key)
if ok {
if gotKey {
return fmt.Errorf("only one of %s can be provided", getJoinedKeys(keys))
}
gotKey = true
}
}
if !gotKey {
return fmt.Errorf("one of %s should be provided", getJoinedKeys(keys))
}
return nil
}
type objectResolverFunc func(name string, opts ...sdkresolvers.ResolveOption) ycsdk.Resolver
func resolveObjectID(ctx context.Context, config *Config, name string, resolverFunc objectResolverFunc) (string, error) {
if name == "" {
return "", fmt.Errorf("non empty name should be provided")
}
var objectID string
resolver := resolverFunc(name, sdkresolvers.Out(&objectID), sdkresolvers.FolderID(config.FolderID))
err := config.sdk.Resolve(ctx, resolver)
if err != nil {
return "", err
}
return objectID, nil
}