edeliver v1.2.5 Edeliver.Relup.Instructions.Sleep

This upgrade instruction is intended for testing only

and just sleeps the given amount of seconds. This can be used to test instructions which suspend processes at the beginning of the upgrade before the new code is installed. Usage:

  Edeliver.Relup.Instructions.Sleep.modify_relup(config, _seconds = 30)

It prints a countown in the upgrade script which was started by the $APP/bin/$APP upgarde $RELEASE command.

Summary

Functions

arguments(instructions, config)

Callback implementation for Edeliver.Relup.RunnableInstruction.arguments/2

call_this(arguments \\ [])

Calls the run/1 function of this module

debug(message)

Logs a debug message using the Logger on the running node which is upgraded

dependencies()

Callback implementation for Edeliver.Relup.RunnableInstruction.dependencies/0

ensure_dependencies_loaded_before_instruction_for_upgrade(instructions, call_this_instruction, dependencies \\ dependencies())

Ensures that all Edeliver.Relup.RunnableInstruction modules used / referenced by this instruction and returned by the dependencies/0 callback are loaded before this instruction is executed during the upgrade

ensure_dependencies_unloaded_after_instruction_for_downgrade(instructions, call_this_instruction, dependencies \\ dependencies())

Ensures that all Edeliver.Relup.RunnableInstruction modules used / referenced by this instruction and returned by the dependencies/0 callback are unloaded after this instruction is executed during the downgrade

error(message)

Logs an error using the Logger on the running node which is upgraded

format_in_upgrade_script(format, arguments)

Formats and prints the message on the node

info(message)

Logs an info message using the Logger on the running node which is upgraded

insert_where()

Appends this instruction to the instructions after the “point of no return”

log_in_upgrade_script(type, message)

Logs the message of the given type on the node

modify_relup(instructions, config)

Callback implementation for Edeliver.Relup.Instruction.modify_relup/2

modify_relup(instructions, config, seconds \\ 30)

run(seconds)

Waits the given amount of seconds and prints a countdown

warn(message)

Logs a warning using the Logger on the running node which is upgraded

Macros

assume(assertion, error_message)

Assumes that the pattern matches or throws an error with the given error message

Types

insert_fun :: (%Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term} | instructions, new_instructions :: instruction | instructions -> updated_instructions :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term} | instructions)

instruction :: :relup.instruction

instructions :: [instruction]

Functions

arguments(instructions, config)

Specs

arguments(%Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}, %ReleaseManager.Config{dev: term, env: term, erl: term, name: term, package: term, relx_config: term, upgrade?: term, verbosity: term, version: term}) :: term

Callback implementation for Edeliver.Relup.RunnableInstruction.arguments/2.

call_this(arguments \\ [])

Specs

call_this(arguments :: [term]) ::
  instruction |
  instructions

Calls the run/1 function of this module

from the relup file during hot code upgrade

debug(message)

Specs

debug(message :: String.t) :: no_return

Logs a debug message using the Logger on the running node which is upgraded.

In addition the same debug message is logged on the node which executes the upgrade and is displayed as output of the $APP/bin/$APP upgarde $RELEASE command.

dependencies()

Specs

dependencies :: [instruction_module :: atom]

Callback implementation for Edeliver.Relup.RunnableInstruction.dependencies/0.

ensure_dependencies_loaded_before_instruction_for_upgrade(instructions, call_this_instruction, dependencies \\ dependencies())

Specs

ensure_dependencies_loaded_before_instruction_for_upgrade(instructions :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}, runnable_instruction :: {:apply, {module :: atom, :run, arguments :: [term]}}, dependencies :: [instruction_module :: atom]) :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}

ensure_dependencies_unloaded_after_instruction_for_downgrade(instructions, call_this_instruction, dependencies \\ dependencies())

Specs

ensure_dependencies_unloaded_after_instruction_for_downgrade(instructions :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}, runnable_instruction :: {:apply, {module :: atom, :run, arguments :: [term]}}, dependencies :: [instruction_module :: atom]) :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}

error(message)

Specs

error(message :: String.t) :: no_return

Logs an error using the Logger on the running node which is upgraded.

In addition the same error message is logged on the node which executes the upgrade and is displayed as output of the $APP/bin/$APP upgarde $RELEASE command.

format_in_upgrade_script(format, arguments)

Specs

format_in_upgrade_script(format :: char_list, arguments :: [term]) :: no_return

Formats and prints the message on the node

running the upgrade script which was started by the $APP/bin/$APP upgrade $RELEASE command.

info(message)

Specs

info(message :: String.t) :: no_return

Logs an info message using the Logger on the running node which is upgraded.

In addition the same info message is logged on the node which executes the upgrade and is displayed as output of the $APP/bin/$APP upgarde $RELEASE command.

insert_where()

Specs

insert_where :: insert_fun

Appends this instruction to the instructions after the “point of no return”

but before any instruction which loads or unloads new code, (re-)starts or stops any running processes, or (re-)starts or stops any application or the emulator.

log_in_upgrade_script(type, message)

Specs

log_in_upgrade_script(type :: :error | :warning | :info | :debug, message :: String.t) :: no_return

Logs the message of the given type on the node

which executes the upgrade and displays it as output of the $APP/bin/$APP upgrade $RELEASE command. The message is prefixed with a string derived from the message type.

modify_relup(instructions, config)

Callback implementation for Edeliver.Relup.Instruction.modify_relup/2.

modify_relup(instructions, config, seconds \\ 30)

Specs

modify_relup(instructions :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}, config :: %ReleaseManager.Config{dev: term, env: term, erl: term, name: term, package: term, relx_config: term, upgrade?: term, verbosity: term, version: term}, seconds :: integer) :: %Edeliver.Relup.Instructions{changed_modules: term, down_instructions: term, down_version: term, up_instructions: term, up_version: term}

run(seconds)

Specs

run(seconds :: integer) :: :ok

Waits the given amount of seconds and prints a countdown

in the upgrade script which was started by the $APP/bin/$APP upgarde $RELEASE command.

warn(message)

Specs

warn(message :: String.t) :: no_return

Logs a warning using the Logger on the running node which is upgraded.

In addition the same warning message is logged on the node which executes the upgrade and is displayed as output of the $APP/bin/$APP upgarde $RELEASE command.

Macros

assume(assertion, error_message)

Assumes that the pattern matches or throws an error with the given error message.

The error message is logged as error to the logfile using the Logger and displayed as error output by the $APP/bin/$APP upgrade $RELEASE task using the $APP/ebin/install_upgrade.escript script. If the pattern matches the variables from the matching are assigned.