wait

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Published: Dec 16, 2025 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source
var (
	// ErrVisitStop is used as a return value from [VisitFunc] to stop the walk.
	// It is not returned as an error by any function.
	ErrVisitStop = errors.New("stop the walk")

	// ErrVisitRemove is used as a return value from [VisitFunc] to have the current node removed.
	// It is not returned as an error by any function.
	ErrVisitRemove = errors.New("remove this strategy")
)

Functions

func ForSQL

func ForSQL(port network.Port, driver string, url func(host string, port network.Port) string) *waitForSQL

ForSQL constructs a new waitForSql strategy for the given driver

func Walk

func Walk(root *Strategy, visit VisitFunc) error

Walk walks the strategies tree and calls the visit function for each node.

Types

type ExecStrategy

type ExecStrategy struct {

	// additional properties
	ExitCodeMatcher func(exitCode int) bool
	ResponseMatcher func(body io.Reader) bool
	PollInterval    time.Duration
	// contains filtered or unexported fields
}

func ForExec

func ForExec(cmd []string) *ExecStrategy

ForExec is a convenience method to assign ExecStrategy

func NewExecStrategy

func NewExecStrategy(cmd []string) *ExecStrategy

NewExecStrategy constructs an Exec strategy ...

func (*ExecStrategy) String

func (ws *ExecStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*ExecStrategy) Timeout

func (ws *ExecStrategy) Timeout() *time.Duration

func (*ExecStrategy) WaitUntilReady

func (ws *ExecStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

func (*ExecStrategy) WithExitCode

func (ws *ExecStrategy) WithExitCode(exitCode int) *ExecStrategy

func (*ExecStrategy) WithExitCodeMatcher

func (ws *ExecStrategy) WithExitCodeMatcher(exitCodeMatcher func(exitCode int) bool) *ExecStrategy

func (*ExecStrategy) WithPollInterval

func (ws *ExecStrategy) WithPollInterval(pollInterval time.Duration) *ExecStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*ExecStrategy) WithResponseMatcher

func (ws *ExecStrategy) WithResponseMatcher(matcher func(body io.Reader) bool) *ExecStrategy

func (*ExecStrategy) WithTimeout

func (ws *ExecStrategy) WithTimeout(startupTimeout time.Duration) *ExecStrategy

WithTimeout can be used to change the default startup timeout

type ExitStrategy

type ExitStrategy struct {

	// additional properties
	PollInterval time.Duration
	// contains filtered or unexported fields
}

ExitStrategy will wait until container exit

func ForExit

func ForExit() *ExitStrategy

ForExit is the default construction for the fluid interface.

For Example:

wait.
	ForExit().
	WithPollInterval(1 * time.Second)

func NewExitStrategy

func NewExitStrategy() *ExitStrategy

NewExitStrategy constructs with polling interval of 100 milliseconds without timeout by default

func (*ExitStrategy) String

func (ws *ExitStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*ExitStrategy) Timeout

func (ws *ExitStrategy) Timeout() *time.Duration

func (*ExitStrategy) WaitUntilReady

func (ws *ExitStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady implements Strategy.WaitUntilReady

func (*ExitStrategy) WithPollInterval

func (ws *ExitStrategy) WithPollInterval(pollInterval time.Duration) *ExitStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*ExitStrategy) WithTimeout

func (ws *ExitStrategy) WithTimeout(exitTimeout time.Duration) *ExitStrategy

WithTimeout can be used to change the default exit timeout

type FileStrategy

type FileStrategy struct {
	// contains filtered or unexported fields
}

FileStrategy waits for a file to exist in the container.

func ForFile

func ForFile(file string) *FileStrategy

ForFile is a convenience method to assign FileStrategy

func NewFileStrategy

func NewFileStrategy(file string) *FileStrategy

NewFileStrategy constructs an FileStrategy strategy.

func (*FileStrategy) String

func (ws *FileStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*FileStrategy) Timeout

func (ws *FileStrategy) Timeout() *time.Duration

Timeout returns the timeout for the strategy

func (*FileStrategy) WaitUntilReady

func (ws *FileStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady waits until the file exists in the container and copies it to the target.

func (*FileStrategy) WithMatcher

func (ws *FileStrategy) WithMatcher(matcher func(io.Reader) error) *FileStrategy

WithMatcher can be used to consume the file content. The matcher can return an errdefs.ErrNotFound to indicate that the file is not ready. Any other error will be considered a failure. Default: nil, will only wait for the file to exist.

func (*FileStrategy) WithPollInterval

func (ws *FileStrategy) WithPollInterval(pollInterval time.Duration) *FileStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*FileStrategy) WithTimeout

func (ws *FileStrategy) WithTimeout(startupTimeout time.Duration) *FileStrategy

WithTimeout can be used to change the default startup timeout

type HTTPStrategy

type HTTPStrategy struct {

	// additional properties
	Port                   network.Port
	Path                   string
	StatusCodeMatcher      func(status int) bool
	ResponseMatcher        func(body io.Reader) bool
	UseTLS                 bool
	AllowInsecure          bool
	TLSConfig              *tls.Config // TLS config for HTTPS
	Method                 string      // http method
	Body                   io.Reader   // http request body
	Headers                map[string]string
	ResponseHeadersMatcher func(headers http.Header) bool
	PollInterval           time.Duration
	UserInfo               *url.Userinfo
	ForceIPv4LocalHost     bool
	// contains filtered or unexported fields
}

func NewHTTPStrategy

func NewHTTPStrategy(path string) *HTTPStrategy

NewHTTPStrategy constructs an HTTP strategy waiting on port 80 and status code 200

func (*HTTPStrategy) String

func (ws *HTTPStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*HTTPStrategy) Timeout

func (ws *HTTPStrategy) Timeout() *time.Duration

func (*HTTPStrategy) WaitUntilReady

func (ws *HTTPStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady implements Strategy.WaitUntilReady

func (*HTTPStrategy) WithAllowInsecure

func (ws *HTTPStrategy) WithAllowInsecure(allowInsecure bool) *HTTPStrategy

func (*HTTPStrategy) WithBasicAuth

func (ws *HTTPStrategy) WithBasicAuth(username, password string) *HTTPStrategy

func (*HTTPStrategy) WithBody

func (ws *HTTPStrategy) WithBody(reqdata io.Reader) *HTTPStrategy

func (*HTTPStrategy) WithForcedIPv4LocalHost

func (ws *HTTPStrategy) WithForcedIPv4LocalHost() *HTTPStrategy

WithForcedIPv4LocalHost forces usage of localhost to be ipv4 127.0.0.1 to avoid ipv6 docker bugs https://github.com/moby/moby/issues/42442 https://github.com/moby/moby/issues/42375

func (*HTTPStrategy) WithHeaders

func (ws *HTTPStrategy) WithHeaders(headers map[string]string) *HTTPStrategy

func (*HTTPStrategy) WithMethod

func (ws *HTTPStrategy) WithMethod(method string) *HTTPStrategy

func (*HTTPStrategy) WithPollInterval

func (ws *HTTPStrategy) WithPollInterval(pollInterval time.Duration) *HTTPStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*HTTPStrategy) WithPort

func (ws *HTTPStrategy) WithPort(port network.Port) *HTTPStrategy

WithPort set the port to wait for. Default is the lowest numbered port.

func (*HTTPStrategy) WithResponseHeadersMatcher

func (ws *HTTPStrategy) WithResponseHeadersMatcher(matcher func(http.Header) bool) *HTTPStrategy

func (*HTTPStrategy) WithResponseMatcher

func (ws *HTTPStrategy) WithResponseMatcher(matcher func(body io.Reader) bool) *HTTPStrategy

func (*HTTPStrategy) WithStatus

func (ws *HTTPStrategy) WithStatus(status int) *HTTPStrategy

WithStatus uses [WithStatusCodeMatcher] with the given status code

func (*HTTPStrategy) WithStatusCodeMatcher

func (ws *HTTPStrategy) WithStatusCodeMatcher(statusCodeMatcher func(status int) bool) *HTTPStrategy

WithStatusCodeMatcher sets the status code matcher to the given function

func (*HTTPStrategy) WithTLS

func (ws *HTTPStrategy) WithTLS(useTLS bool, tlsconf ...*tls.Config) *HTTPStrategy

func (*HTTPStrategy) WithTimeout

func (ws *HTTPStrategy) WithTimeout(timeout time.Duration) *HTTPStrategy

WithTimeout can be used to change the default startup timeout

type HealthStrategy

type HealthStrategy struct {

	// additional properties
	PollInterval time.Duration
	// contains filtered or unexported fields
}

HealthStrategy will wait until the container becomes healthy

func ForHealthCheck

func ForHealthCheck() *HealthStrategy

ForHealthCheck is the default construction for the fluid interface.

For Example:

wait.
	ForHealthCheck().
	WithPollInterval(1 * time.Second)

func NewHealthStrategy

func NewHealthStrategy() *HealthStrategy

NewHealthStrategy constructs with polling interval of 100 milliseconds and startup timeout of 60 seconds by default

func (*HealthStrategy) String

func (ws *HealthStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*HealthStrategy) Timeout

func (ws *HealthStrategy) Timeout() *time.Duration

func (*HealthStrategy) WaitUntilReady

func (ws *HealthStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady implements Strategy.WaitUntilReady

func (*HealthStrategy) WithPollInterval

func (ws *HealthStrategy) WithPollInterval(pollInterval time.Duration) *HealthStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*HealthStrategy) WithTimeout

func (ws *HealthStrategy) WithTimeout(startupTimeout time.Duration) *HealthStrategy

WithTimeout can be used to change the default startup timeout

type HostPortStrategy

type HostPortStrategy struct {
	// Port is a string containing port number and protocol in the format "80/tcp"
	// which
	Port network.Port

	PollInterval time.Duration
	// contains filtered or unexported fields
}

func ForExposedPort

func ForExposedPort() *HostPortStrategy

ForExposedPort returns a host port strategy that waits for the first port to be exposed and bound internally the container.

func ForListeningPort

func ForListeningPort(port network.Port) *HostPortStrategy

ForListeningPort returns a host port strategy that waits for the given port to be exposed and bound internally the container. Alias for `NewHostPortStrategy(port)`.

func ForMappedPort

func ForMappedPort(port network.Port) *HostPortStrategy

ForMappedPort returns a host port strategy that waits for the given port to be mapped without accessing the port itself.

func NewHostPortStrategy

func NewHostPortStrategy(port network.Port) *HostPortStrategy

NewHostPortStrategy constructs a default host port strategy that waits for the given port to be exposed. The default startup timeout is 60 seconds.

func (*HostPortStrategy) SkipExternalCheck

func (hp *HostPortStrategy) SkipExternalCheck() *HostPortStrategy

SkipExternalCheck changes the host port strategy to skip the external check, which, if used with SkipInternalCheck, makes strategy waiting only for port mapping completion without accessing port.

func (*HostPortStrategy) SkipInternalCheck

func (hp *HostPortStrategy) SkipInternalCheck() *HostPortStrategy

SkipInternalCheck changes the host port strategy to skip the internal check, which is useful when a shell is not available in the container or when the container doesn't bind the port internally until additional conditions are met.

func (*HostPortStrategy) String

func (hp *HostPortStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*HostPortStrategy) Timeout

func (hp *HostPortStrategy) Timeout() *time.Duration

func (*HostPortStrategy) WaitUntilReady

func (hp *HostPortStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady implements Strategy.WaitUntilReady

func (*HostPortStrategy) WithPollInterval

func (hp *HostPortStrategy) WithPollInterval(pollInterval time.Duration) *HostPortStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*HostPortStrategy) WithTimeout

func (hp *HostPortStrategy) WithTimeout(startupTimeout time.Duration) *HostPortStrategy

WithTimeout can be used to change the default startup timeout

type LogStrategy

type LogStrategy struct {

	// additional properties
	Log          string
	IsRegexp     bool
	Occurrence   int
	PollInterval time.Duration
	// contains filtered or unexported fields
}

LogStrategy will wait until a given log entry shows up in the docker logs

func ForLog

func ForLog(log string) *LogStrategy

ForLog is the default construction for the fluid interface.

For Example:

wait.
	ForLog("some text").
	WithPollInterval(1 * time.Second)

func NewLogStrategy

func NewLogStrategy(log string) *LogStrategy

NewLogStrategy constructs with polling interval of 100 milliseconds and startup timeout of 60 seconds by default

func (*LogStrategy) AsRegexp

func (ws *LogStrategy) AsRegexp() *LogStrategy

AsRegexp can be used to change the default behavior of the log strategy to use regexp instead of plain text

func (*LogStrategy) String

func (ws *LogStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*LogStrategy) Submatch

func (ws *LogStrategy) Submatch(callback func(pattern string, matches [][][]byte) error) *LogStrategy

Submatch configures a function that will be called with the result of regexp.Regexp.FindAllSubmatch, allowing the caller to process the results. If the callback returns nil, the strategy will be considered successful. Returning a PermanentError will stop the wait and return an error, otherwise it will retry until the timeout is reached. [LogStrategy.Occurrence] is ignored if this option is set.

func (*LogStrategy) Timeout

func (ws *LogStrategy) Timeout() *time.Duration

func (*LogStrategy) WaitUntilReady

func (ws *LogStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady implements Strategy.WaitUntilReady

func (*LogStrategy) WithOccurrence

func (ws *LogStrategy) WithOccurrence(o int) *LogStrategy

func (*LogStrategy) WithPollInterval

func (ws *LogStrategy) WithPollInterval(pollInterval time.Duration) *LogStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds

func (*LogStrategy) WithTimeout

func (ws *LogStrategy) WithTimeout(timeout time.Duration) *LogStrategy

WithTimeout can be used to change the default startup timeout

type MultiStrategy

type MultiStrategy struct {

	// additional properties
	Strategies []Strategy
	// contains filtered or unexported fields
}

func ForAll

func ForAll(strategies ...Strategy) *MultiStrategy

func (*MultiStrategy) String

func (ms *MultiStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*MultiStrategy) Timeout

func (ms *MultiStrategy) Timeout() *time.Duration

func (*MultiStrategy) WaitUntilReady

func (ms *MultiStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

func (*MultiStrategy) WithDeadline

func (ms *MultiStrategy) WithDeadline(deadline time.Duration) *MultiStrategy

WithDeadline sets a time.Duration which limits all wait strategies

func (*MultiStrategy) WithStartupTimeoutDefault

func (ms *MultiStrategy) WithStartupTimeoutDefault(timeout time.Duration) *MultiStrategy

WithStartupTimeoutDefault sets the default timeout for all inner wait strategies

type NopStrategy

type NopStrategy struct {
	// contains filtered or unexported fields
}

func ForNop

func ForNop(
	waitUntilReady func(context.Context, StrategyTarget) error,
) *NopStrategy

func (*NopStrategy) String

func (ws *NopStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*NopStrategy) Timeout

func (ws *NopStrategy) Timeout() *time.Duration

func (*NopStrategy) WaitUntilReady

func (ws *NopStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

func (*NopStrategy) WithTimeout

func (ws *NopStrategy) WithTimeout(timeout time.Duration) *NopStrategy

type NopStrategyTarget

type NopStrategyTarget struct {
	ReaderCloser   io.ReadCloser
	ContainerState container.State
}

func (*NopStrategyTarget) CopyFromContainer

func (st *NopStrategyTarget) CopyFromContainer(_ context.Context, _ string) (io.ReadCloser, error)

func (*NopStrategyTarget) Exec

func (*NopStrategyTarget) Host

func (st *NopStrategyTarget) Host(_ context.Context) (string, error)

func (*NopStrategyTarget) Inspect

func (*NopStrategyTarget) Logger

func (st *NopStrategyTarget) Logger() *slog.Logger

func (*NopStrategyTarget) Logs

func (*NopStrategyTarget) MappedPort

func (st *NopStrategyTarget) MappedPort(_ context.Context, n network.Port) (network.Port, error)

func (*NopStrategyTarget) State

type PermanentError

type PermanentError struct {
	// contains filtered or unexported fields
}

PermanentError is a special error that will stop the wait and return an error.

func NewPermanentError

func NewPermanentError(err error) *PermanentError

NewPermanentError creates a new PermanentError.

func (*PermanentError) Error

func (e *PermanentError) Error() string

Error implements the error interface.

type Strategy

type Strategy interface {
	WaitUntilReady(context.Context, StrategyTarget) error
}

Strategy defines the basic interface for a Wait Strategy

type StrategyTarget

type StrategyTarget interface {
	Host(context.Context) (string, error)
	Inspect(context.Context) (dockerclient.ContainerInspectResult, error)
	MappedPort(context.Context, network.Port) (network.Port, error)
	Logs(context.Context) (io.ReadCloser, error)
	Exec(context.Context, []string, ...exec.ProcessOption) (int, io.Reader, error)
	State(context.Context) (*container.State, error)
	CopyFromContainer(ctx context.Context, filePath string) (io.ReadCloser, error)
	Logger() *slog.Logger
}

type StrategyTimeout

type StrategyTimeout interface {
	Timeout() *time.Duration
}

StrategyTimeout allows MultiStrategy to configure a Strategy's Timeout

type TLSStrategy

type TLSStrategy struct {
	// contains filtered or unexported fields
}

TLSStrategy is a strategy for handling TLS.

func ForTLSCert

func ForTLSCert(certPEMFile, keyPEMFile string) *TLSStrategy

ForTLSCert returns a CertStrategy that will add a Certificate to the tls.Config constructed from PEM formatted certificate key file pair in the container.

func ForTLSRootCAs

func ForTLSRootCAs(pemFiles ...string) *TLSStrategy

ForTLSRootCAs returns a CertStrategy that sets the root CAs for the tls.Config using the given PEM formatted files from the container.

func (*TLSStrategy) String

func (ws *TLSStrategy) String() string

String returns a human-readable description of the wait strategy.

func (*TLSStrategy) TLSConfig

func (ws *TLSStrategy) TLSConfig() *tls.Config

TLSConfig returns the TLS config once the strategy is ready. If the strategy is nil, it returns nil.

func (*TLSStrategy) WaitUntilReady

func (ws *TLSStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) error

WaitUntilReady implements the Strategy interface. It waits for the CA, client cert and key files to be available in the container and uses them to setup the TLS config.

func (*TLSStrategy) WithCert

func (ws *TLSStrategy) WithCert(certPEMFile, keyPEMFile string) *TLSStrategy

WithCert sets the tls.Config Certificates using the given files from the container.

func (*TLSStrategy) WithPollInterval

func (ws *TLSStrategy) WithPollInterval(pollInterval time.Duration) *TLSStrategy

WithPollInterval can be used to override the default polling interval of 100 milliseconds.

func (*TLSStrategy) WithRootCAs

func (ws *TLSStrategy) WithRootCAs(files ...string) *TLSStrategy

WithRootCAs sets the root CAs for the tls.Config using the given files from the container.

func (*TLSStrategy) WithServerName

func (ws *TLSStrategy) WithServerName(serverName string) *TLSStrategy

WithServerName sets the server for the tls.Config.

func (*TLSStrategy) WithTimeout

func (ws *TLSStrategy) WithTimeout(startupTimeout time.Duration) *TLSStrategy

WithTimeout can be used to change the default startup timeout.

type VisitFunc

type VisitFunc func(root Strategy) error

VisitFunc is a function that visits a strategy node. If it returns ErrVisitStop, the walk stops. If it returns ErrVisitRemove, the current node is removed.

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