terraform/remote/client.go

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package remote
import (
"fmt"
"strings"
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"github.com/hashicorp/terraform/terraform"
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)
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var (
// ErrConflict is used to indicate the upload was rejected
// due to a conflict on the state
ErrConflict = fmt.Errorf("Conflicting state file")
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// ErrServerNewer is used to indicate the serial number of
// the state is newer on the server side
ErrServerNewer = fmt.Errorf("Server-side Serial is newer")
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// ErrRequireAuth is used if the remote server requires
// authentication and none is provided
ErrRequireAuth = fmt.Errorf("Remote server requires authentication")
// ErrInvalidAuth is used if we provide authentication which
// is not valid
ErrInvalidAuth = fmt.Errorf("Invalid authentication")
// ErrRemoteInternal is used if we get an internal error
// from the remote server
ErrRemoteInternal = fmt.Errorf("Remote server reporting internal error")
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)
type RemoteClient interface {
GetState() (*RemoteStatePayload, error)
PutState(state []byte, force bool) error
DeleteState() error
}
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// RemoteStatePayload is used to return the remote state
// along with associated meta data when we do a remote fetch.
type RemoteStatePayload struct {
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MD5 []byte
State []byte
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}
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// NewClientByState is used to construct a client from
// our remote state.
func NewClientByState(remote *terraform.RemoteState) (RemoteClient, error) {
return NewClientByType(remote.Type, remote.Config)
}
// NewClientByType is used to construct a RemoteClient
// based on the configured type.
func NewClientByType(ctype string, conf map[string]string) (RemoteClient, error) {
ctype = strings.ToLower(ctype)
switch ctype {
case "atlas":
return NewAtlasRemoteClient(conf)
case "consul":
return NewConsulRemoteClient(conf)
case "http":
return NewHTTPRemoteClient(conf)
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default:
return nil, fmt.Errorf("Unknown remote client type '%s'", ctype)
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}
}