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package vpcgw
import (
"time"
"github.com/scaleway/scaleway-sdk-go/errors"
"github.com/scaleway/scaleway-sdk-go/internal/async"
"github.com/scaleway/scaleway-sdk-go/scw"
)
const (
defaultTimeout = 5 * time.Minute
defaultRetryInterval = 15 * time.Second
)
// WaitForGatewayRequest is used by WaitForGateway method
type WaitForGatewayRequest struct {
GatewayID string
Zone scw.Zone
Timeout *time.Duration
RetryInterval *time.Duration
}
// WaitForGateway waits for the gateway to be in a "terminal state" before returning.
// This function can be used to wait for a gateway to be ready for example.
func (s *API) WaitForGateway(req *WaitForGatewayRequest, opts ...scw.RequestOption) (*Gateway, error) {
timeout := defaultTimeout
if req.Timeout != nil {
timeout = *req.Timeout
}
retryInterval := defaultRetryInterval
if req.RetryInterval != nil {
retryInterval = *req.RetryInterval
}
terminalStatus := map[GatewayStatus]struct{}{
GatewayStatusUnknown: {},
GatewayStatusStopped: {},
GatewayStatusRunning: {},
GatewayStatusFailed: {},
GatewayStatusDeleted: {},
GatewayStatusLocked: {},
}
gateway, err := async.WaitSync(&async.WaitSyncConfig{
Get: func() (interface{}, bool, error) {
ns, err := s.GetGateway(&GetGatewayRequest{
Zone: req.Zone,
GatewayID: req.GatewayID,
}, opts...)
if err != nil {
return nil, false, err
}
_, isTerminal := terminalStatus[ns.Status]
return ns, isTerminal, err
},
Timeout: timeout,
IntervalStrategy: async.LinearIntervalStrategy(retryInterval),
})
if err != nil {
return nil, errors.Wrap(err, "waiting for gateway failed")
}
return gateway.(*Gateway), nil
}
// WaitForGatewayNetworkRequest is used by WaitForGatewayNetwork method
type WaitForGatewayNetworkRequest struct {
GatewayNetworkID string
Zone scw.Zone
Timeout *time.Duration
RetryInterval *time.Duration
}
// WaitForGatewayNetwork waits for the gateway network to be in a "terminal state" before returning.
// This function can be used to wait for a gateway network to be ready for example.
func (s *API) WaitForGatewayNetwork(req *WaitForGatewayNetworkRequest, opts ...scw.RequestOption) (*GatewayNetwork, error) {
timeout := defaultTimeout
if req.Timeout != nil {
timeout = *req.Timeout
}
retryInterval := defaultRetryInterval
if req.RetryInterval != nil {
retryInterval = *req.RetryInterval
}
terminalStatus := map[GatewayNetworkStatus]struct{}{
GatewayNetworkStatusReady: {},
GatewayNetworkStatusUnknown: {},
GatewayNetworkStatusDeleted: {},
}
gatewayNetwork, err := async.WaitSync(&async.WaitSyncConfig{
Get: func() (interface{}, bool, error) {
ns, err := s.GetGatewayNetwork(&GetGatewayNetworkRequest{
Zone: req.Zone,
GatewayNetworkID: req.GatewayNetworkID,
}, opts...)
if err != nil {
return nil, false, err
}
_, isTerminal := terminalStatus[ns.Status]
return ns, isTerminal, err
},
Timeout: timeout,
IntervalStrategy: async.LinearIntervalStrategy(retryInterval),
})
if err != nil {
return nil, errors.Wrap(err, "waiting for gateway network failed")
}
return gatewayNetwork.(*GatewayNetwork), nil
}
// WaitForDHCPEntriesRequest is used by WaitForDHCPEntries method
type WaitForDHCPEntriesRequest struct {
GatewayNetworkID *string
MacAddress string
Zone scw.Zone
Timeout *time.Duration
RetryInterval *time.Duration
}
// WaitForDHCPEntries waits for at least one dhcp entry with the correct mac address.
// This function can be used to wait for an instance to use dhcp
func (s *API) WaitForDHCPEntries(req *WaitForDHCPEntriesRequest, opts ...scw.RequestOption) (*ListDHCPEntriesResponse, error) {
timeout := defaultTimeout
if req.Timeout != nil {
timeout = *req.Timeout
}
retryInterval := defaultRetryInterval
if req.RetryInterval != nil {
retryInterval = *req.RetryInterval
}
dhcpEntries, err := async.WaitSync(&async.WaitSyncConfig{
Get: func() (interface{}, bool, error) {
entries, err := s.ListDHCPEntries(&ListDHCPEntriesRequest{
Zone: req.Zone,
GatewayNetworkID: req.GatewayNetworkID,
MacAddress: &req.MacAddress,
}, opts...)
if err != nil {
return nil, false, err
}
containsMacAddress := false
for _, entry := range entries.DHCPEntries {
if entry.MacAddress == req.MacAddress {
containsMacAddress = true
break
}
}
return entries, containsMacAddress, err
},
Timeout: timeout,
IntervalStrategy: async.LinearIntervalStrategy(retryInterval),
})
if err != nil {
return nil, errors.Wrap(err, "waiting for gateway network failed")
}
return dhcpEntries.(*ListDHCPEntriesResponse), nil
}
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