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api_op_DescribeVpnConnections.go
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api_op_DescribeVpnConnections.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package ec2
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
"github.com/aws/aws-sdk-go-v2/service/ec2/types"
"github.com/aws/smithy-go/middleware"
smithytime "github.com/aws/smithy-go/time"
smithyhttp "github.com/aws/smithy-go/transport/http"
smithywaiter "github.com/aws/smithy-go/waiter"
"github.com/jmespath/go-jmespath"
"time"
)
// Describes one or more of your VPN connections. For more information, see AWS
// Site-to-Site VPN (https://docs.aws.amazon.com/vpn/latest/s2svpn/VPC_VPN.html) in
// the AWS Site-to-Site VPN User Guide.
func (c *Client) DescribeVpnConnections(ctx context.Context, params *DescribeVpnConnectionsInput, optFns ...func(*Options)) (*DescribeVpnConnectionsOutput, error) {
if params == nil {
params = &DescribeVpnConnectionsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeVpnConnections", params, optFns, addOperationDescribeVpnConnectionsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeVpnConnectionsOutput)
out.ResultMetadata = metadata
return out, nil
}
// Contains the parameters for DescribeVpnConnections.
type DescribeVpnConnectionsInput struct {
// Checks whether you have the required permissions for the action, without
// actually making the request, and provides an error response. If you have the
// required permissions, the error response is DryRunOperation. Otherwise, it is
// UnauthorizedOperation.
DryRun *bool
// One or more filters.
//
// * customer-gateway-configuration - The configuration
// information for the customer gateway.
//
// * customer-gateway-id - The ID of a
// customer gateway associated with the VPN connection.
//
// * state - The state of the
// VPN connection (pending | available | deleting | deleted).
//
// *
// option.static-routes-only - Indicates whether the connection has static routes
// only. Used for devices that do not support Border Gateway Protocol (BGP).
//
// *
// route.destination-cidr-block - The destination CIDR block. This corresponds to
// the subnet used in a customer data center.
//
// * bgp-asn - The BGP Autonomous
// System Number (ASN) associated with a BGP device.
//
// * tag: - The key/value
// combination of a tag assigned to the resource. Use the tag key in the filter
// name and the tag value as the filter value. For example, to find all resources
// that have a tag with the key Owner and the value TeamA, specify tag:Owner for
// the filter name and TeamA for the filter value.
//
// * tag-key - The key of a tag
// assigned to the resource. Use this filter to find all resources assigned a tag
// with a specific key, regardless of the tag value.
//
// * type - The type of VPN
// connection. Currently the only supported type is ipsec.1.
//
// * vpn-connection-id -
// The ID of the VPN connection.
//
// * vpn-gateway-id - The ID of a virtual private
// gateway associated with the VPN connection.
//
// * transit-gateway-id - The ID of a
// transit gateway associated with the VPN connection.
Filters []types.Filter
// One or more VPN connection IDs. Default: Describes your VPN connections.
VpnConnectionIds []string
}
// Contains the output of DescribeVpnConnections.
type DescribeVpnConnectionsOutput struct {
// Information about one or more VPN connections.
VpnConnections []types.VpnConnection
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
}
func addOperationDescribeVpnConnectionsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsEc2query_serializeOpDescribeVpnConnections{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsEc2query_deserializeOpDescribeVpnConnections{}, middleware.After)
if err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
return err
}
if err = addRetryMiddlewares(stack, options); err != nil {
return err
}
if err = addHTTPSignerV4Middleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeVpnConnections(options.Region), middleware.Before); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
return nil
}
// DescribeVpnConnectionsAPIClient is a client that implements the
// DescribeVpnConnections operation.
type DescribeVpnConnectionsAPIClient interface {
DescribeVpnConnections(context.Context, *DescribeVpnConnectionsInput, ...func(*Options)) (*DescribeVpnConnectionsOutput, error)
}
var _ DescribeVpnConnectionsAPIClient = (*Client)(nil)
// VpnConnectionAvailableWaiterOptions are waiter options for
// VpnConnectionAvailableWaiter
type VpnConnectionAvailableWaiterOptions struct {
// Set of options to modify how an operation is invoked. These apply to all
// operations invoked for this client. Use functional options on operation call to
// modify this list for per operation behavior.
APIOptions []func(*middleware.Stack) error
// MinDelay is the minimum amount of time to delay between retries. If unset,
// VpnConnectionAvailableWaiter will use default minimum delay of 15 seconds. Note
// that MinDelay must resolve to a value lesser than or equal to the MaxDelay.
MinDelay time.Duration
// MaxDelay is the maximum amount of time to delay between retries. If unset or set
// to zero, VpnConnectionAvailableWaiter will use default max delay of 120 seconds.
// Note that MaxDelay must resolve to value greater than or equal to the MinDelay.
MaxDelay time.Duration
// LogWaitAttempts is used to enable logging for waiter retry attempts
LogWaitAttempts bool
// Retryable is function that can be used to override the service defined
// waiter-behavior based on operation output, or returned error. This function is
// used by the waiter to decide if a state is retryable or a terminal state. By
// default service-modeled logic will populate this option. This option can thus be
// used to define a custom waiter state with fall-back to service-modeled waiter
// state mutators.The function returns an error in case of a failure state. In case
// of retry state, this function returns a bool value of true and nil error, while
// in case of success it returns a bool value of false and nil error.
Retryable func(context.Context, *DescribeVpnConnectionsInput, *DescribeVpnConnectionsOutput, error) (bool, error)
}
// VpnConnectionAvailableWaiter defines the waiters for VpnConnectionAvailable
type VpnConnectionAvailableWaiter struct {
client DescribeVpnConnectionsAPIClient
options VpnConnectionAvailableWaiterOptions
}
// NewVpnConnectionAvailableWaiter constructs a VpnConnectionAvailableWaiter.
func NewVpnConnectionAvailableWaiter(client DescribeVpnConnectionsAPIClient, optFns ...func(*VpnConnectionAvailableWaiterOptions)) *VpnConnectionAvailableWaiter {
options := VpnConnectionAvailableWaiterOptions{}
options.MinDelay = 15 * time.Second
options.MaxDelay = 120 * time.Second
options.Retryable = vpnConnectionAvailableStateRetryable
for _, fn := range optFns {
fn(&options)
}
return &VpnConnectionAvailableWaiter{
client: client,
options: options,
}
}
// Wait calls the waiter function for VpnConnectionAvailable waiter. The maxWaitDur
// is the maximum wait duration the waiter will wait. The maxWaitDur is required
// and must be greater than zero.
func (w *VpnConnectionAvailableWaiter) Wait(ctx context.Context, params *DescribeVpnConnectionsInput, maxWaitDur time.Duration, optFns ...func(*VpnConnectionAvailableWaiterOptions)) error {
if maxWaitDur <= 0 {
return fmt.Errorf("maximum wait time for waiter must be greater than zero")
}
options := w.options
for _, fn := range optFns {
fn(&options)
}
if options.MaxDelay <= 0 {
options.MaxDelay = 120 * time.Second
}
if options.MinDelay > options.MaxDelay {
return fmt.Errorf("minimum waiter delay %v must be lesser than or equal to maximum waiter delay of %v.", options.MinDelay, options.MaxDelay)
}
ctx, cancelFn := context.WithTimeout(ctx, maxWaitDur)
defer cancelFn()
logger := smithywaiter.Logger{}
remainingTime := maxWaitDur
var attempt int64
for {
attempt++
apiOptions := options.APIOptions
start := time.Now()
if options.LogWaitAttempts {
logger.Attempt = attempt
apiOptions = append([]func(*middleware.Stack) error{}, options.APIOptions...)
apiOptions = append(apiOptions, logger.AddLogger)
}
out, err := w.client.DescribeVpnConnections(ctx, params, func(o *Options) {
o.APIOptions = append(o.APIOptions, apiOptions...)
})
retryable, err := options.Retryable(ctx, params, out, err)
if err != nil {
return err
}
if !retryable {
return nil
}
remainingTime -= time.Since(start)
if remainingTime < options.MinDelay || remainingTime <= 0 {
break
}
// compute exponential backoff between waiter retries
delay, err := smithywaiter.ComputeDelay(
attempt, options.MinDelay, options.MaxDelay, remainingTime,
)
if err != nil {
return fmt.Errorf("error computing waiter delay, %w", err)
}
remainingTime -= delay
// sleep for the delay amount before invoking a request
if err := smithytime.SleepWithContext(ctx, delay); err != nil {
return fmt.Errorf("request cancelled while waiting, %w", err)
}
}
return fmt.Errorf("exceeded max wait time for VpnConnectionAvailable waiter")
}
func vpnConnectionAvailableStateRetryable(ctx context.Context, input *DescribeVpnConnectionsInput, output *DescribeVpnConnectionsOutput, err error) (bool, error) {
if err == nil {
pathValue, err := jmespath.Search("VpnConnections[].State", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "available"
var match = true
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
if len(listOfValues) == 0 {
match = false
}
for _, v := range listOfValues {
value, ok := v.(types.VpnState)
if !ok {
return false, fmt.Errorf("waiter comparator expected types.VpnState value, got %T", pathValue)
}
if string(value) != expectedValue {
match = false
}
}
if match {
return false, nil
}
}
if err == nil {
pathValue, err := jmespath.Search("VpnConnections[].State", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "deleting"
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
for _, v := range listOfValues {
value, ok := v.(types.VpnState)
if !ok {
return false, fmt.Errorf("waiter comparator expected types.VpnState value, got %T", pathValue)
}
if string(value) == expectedValue {
return false, fmt.Errorf("waiter state transitioned to Failure")
}
}
}
if err == nil {
pathValue, err := jmespath.Search("VpnConnections[].State", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "deleted"
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
for _, v := range listOfValues {
value, ok := v.(types.VpnState)
if !ok {
return false, fmt.Errorf("waiter comparator expected types.VpnState value, got %T", pathValue)
}
if string(value) == expectedValue {
return false, fmt.Errorf("waiter state transitioned to Failure")
}
}
}
return true, nil
}
// VpnConnectionDeletedWaiterOptions are waiter options for
// VpnConnectionDeletedWaiter
type VpnConnectionDeletedWaiterOptions struct {
// Set of options to modify how an operation is invoked. These apply to all
// operations invoked for this client. Use functional options on operation call to
// modify this list for per operation behavior.
APIOptions []func(*middleware.Stack) error
// MinDelay is the minimum amount of time to delay between retries. If unset,
// VpnConnectionDeletedWaiter will use default minimum delay of 15 seconds. Note
// that MinDelay must resolve to a value lesser than or equal to the MaxDelay.
MinDelay time.Duration
// MaxDelay is the maximum amount of time to delay between retries. If unset or set
// to zero, VpnConnectionDeletedWaiter will use default max delay of 120 seconds.
// Note that MaxDelay must resolve to value greater than or equal to the MinDelay.
MaxDelay time.Duration
// LogWaitAttempts is used to enable logging for waiter retry attempts
LogWaitAttempts bool
// Retryable is function that can be used to override the service defined
// waiter-behavior based on operation output, or returned error. This function is
// used by the waiter to decide if a state is retryable or a terminal state. By
// default service-modeled logic will populate this option. This option can thus be
// used to define a custom waiter state with fall-back to service-modeled waiter
// state mutators.The function returns an error in case of a failure state. In case
// of retry state, this function returns a bool value of true and nil error, while
// in case of success it returns a bool value of false and nil error.
Retryable func(context.Context, *DescribeVpnConnectionsInput, *DescribeVpnConnectionsOutput, error) (bool, error)
}
// VpnConnectionDeletedWaiter defines the waiters for VpnConnectionDeleted
type VpnConnectionDeletedWaiter struct {
client DescribeVpnConnectionsAPIClient
options VpnConnectionDeletedWaiterOptions
}
// NewVpnConnectionDeletedWaiter constructs a VpnConnectionDeletedWaiter.
func NewVpnConnectionDeletedWaiter(client DescribeVpnConnectionsAPIClient, optFns ...func(*VpnConnectionDeletedWaiterOptions)) *VpnConnectionDeletedWaiter {
options := VpnConnectionDeletedWaiterOptions{}
options.MinDelay = 15 * time.Second
options.MaxDelay = 120 * time.Second
options.Retryable = vpnConnectionDeletedStateRetryable
for _, fn := range optFns {
fn(&options)
}
return &VpnConnectionDeletedWaiter{
client: client,
options: options,
}
}
// Wait calls the waiter function for VpnConnectionDeleted waiter. The maxWaitDur
// is the maximum wait duration the waiter will wait. The maxWaitDur is required
// and must be greater than zero.
func (w *VpnConnectionDeletedWaiter) Wait(ctx context.Context, params *DescribeVpnConnectionsInput, maxWaitDur time.Duration, optFns ...func(*VpnConnectionDeletedWaiterOptions)) error {
if maxWaitDur <= 0 {
return fmt.Errorf("maximum wait time for waiter must be greater than zero")
}
options := w.options
for _, fn := range optFns {
fn(&options)
}
if options.MaxDelay <= 0 {
options.MaxDelay = 120 * time.Second
}
if options.MinDelay > options.MaxDelay {
return fmt.Errorf("minimum waiter delay %v must be lesser than or equal to maximum waiter delay of %v.", options.MinDelay, options.MaxDelay)
}
ctx, cancelFn := context.WithTimeout(ctx, maxWaitDur)
defer cancelFn()
logger := smithywaiter.Logger{}
remainingTime := maxWaitDur
var attempt int64
for {
attempt++
apiOptions := options.APIOptions
start := time.Now()
if options.LogWaitAttempts {
logger.Attempt = attempt
apiOptions = append([]func(*middleware.Stack) error{}, options.APIOptions...)
apiOptions = append(apiOptions, logger.AddLogger)
}
out, err := w.client.DescribeVpnConnections(ctx, params, func(o *Options) {
o.APIOptions = append(o.APIOptions, apiOptions...)
})
retryable, err := options.Retryable(ctx, params, out, err)
if err != nil {
return err
}
if !retryable {
return nil
}
remainingTime -= time.Since(start)
if remainingTime < options.MinDelay || remainingTime <= 0 {
break
}
// compute exponential backoff between waiter retries
delay, err := smithywaiter.ComputeDelay(
attempt, options.MinDelay, options.MaxDelay, remainingTime,
)
if err != nil {
return fmt.Errorf("error computing waiter delay, %w", err)
}
remainingTime -= delay
// sleep for the delay amount before invoking a request
if err := smithytime.SleepWithContext(ctx, delay); err != nil {
return fmt.Errorf("request cancelled while waiting, %w", err)
}
}
return fmt.Errorf("exceeded max wait time for VpnConnectionDeleted waiter")
}
func vpnConnectionDeletedStateRetryable(ctx context.Context, input *DescribeVpnConnectionsInput, output *DescribeVpnConnectionsOutput, err error) (bool, error) {
if err == nil {
pathValue, err := jmespath.Search("VpnConnections[].State", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "deleted"
var match = true
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
if len(listOfValues) == 0 {
match = false
}
for _, v := range listOfValues {
value, ok := v.(types.VpnState)
if !ok {
return false, fmt.Errorf("waiter comparator expected types.VpnState value, got %T", pathValue)
}
if string(value) != expectedValue {
match = false
}
}
if match {
return false, nil
}
}
if err == nil {
pathValue, err := jmespath.Search("VpnConnections[].State", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "pending"
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
for _, v := range listOfValues {
value, ok := v.(types.VpnState)
if !ok {
return false, fmt.Errorf("waiter comparator expected types.VpnState value, got %T", pathValue)
}
if string(value) == expectedValue {
return false, fmt.Errorf("waiter state transitioned to Failure")
}
}
}
return true, nil
}
func newServiceMetadataMiddleware_opDescribeVpnConnections(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "ec2",
OperationName: "DescribeVpnConnections",
}
}