Docker Activities (rever.activities.docker)

Activities for building and uploading to Dockerfiles.

class rever.activities.docker.DockerBuild(*, deps=frozenset({}))

Builds a Dockerfile.

The behaviour of this activity may be adjusted through the following environment variables:

$DOCKER_BUILD_PATH

str, path to the Dockerfile, default (None) looks from reads from $DOCKERFILE.

$DOCKER_BUILD_CONTEXT

str, directory to execute the build within. An empty string indicates that the image should be built in directory containing the path. The default (None) reads from $DOCKERFILE_CONTEXT.

$DOCKER_BUILD_TAGS

list of str, Tags the $DOCKERFILE should be built and pushed with. Default (None) reads from $DOCKERFILE_TAGS.

$DOCKER_BUILD_CACHE

bool, Flag for whether or not to use the cache, default False.

Parameters

namestr, optional

Name of the activity.

depsset of str, optional

Set of activities that must be completed before this activity is executed.

funccallable, optional

Function to perform as activity when this activities is executed (called).

undocallable, optional

Function to undo this activities behaviour and reset the repo state.

setupcallable, optional

Function to help initialize the activity.

checkcallable, optional

Function to check if the activity can be run sucessfully on the user’s machine, with their credentials, etc. This function should return True if the activity can be run, and False otherwise.

requiresdict or None, optional

A dict of dicts of the following form that specifies the command line utility and import requirements for this activity.

{
    "commands": {"<cli name>": "<package name>", ...}
    "imports": {"<module name>": "<package name>", ...}
}

The top-level keys are both optional, and this will default to an empty dict.

argstuple, optional

Arguments to be supplied to the func(*args), if needed.

kwargsmapping, optional

Keyword arguments to be supplied to the func(**kwargs), if needed.

descstr, optional

A short description of this activity

all_kwargs()

Returns all kwargs for this activity.

check()

Calls this activity’s check() function.

check_requirements()

Checks that an activities requirements are actually available.

checker(check)

Decorator that sets the check function for this activity.

clear_kwargs_from_env()

Removes kwarg from the environment, if they exist.

kwargs_from_env()

Obtains possible func() kwarg from the environment.

setup()

Calls this activity’s setup() initialization function.

setupper(setup)

Decorator that sets the setup function for this activity.

undo()

Reverts to the last instance of this activity. This default implementation uses the revision in the log file from the last time that the activity was started. This may be overridden in a subclass.

undoer(undo)

Decorator that sets the undo function for this activity.

property env_names

Dictionary mapping parameter names to the names of environment varaibles that the activity looks for when it is executed.

class rever.activities.docker.DockerPush(*, deps=frozenset({}))

Pushes a built Dockerfile.

The behaviour of this activity may be adjusted through the following environment variables:

$DOCKER_PUSH_TAGS

list of str, Tags that the $DOCKERFILE should be built and pushed with. Default (None) reads from $DOCKERFILE_TAGS.

Parameters

namestr, optional

Name of the activity.

depsset of str, optional

Set of activities that must be completed before this activity is executed.

funccallable, optional

Function to perform as activity when this activities is executed (called).

undocallable, optional

Function to undo this activities behaviour and reset the repo state.

setupcallable, optional

Function to help initialize the activity.

checkcallable, optional

Function to check if the activity can be run sucessfully on the user’s machine, with their credentials, etc. This function should return True if the activity can be run, and False otherwise.

requiresdict or None, optional

A dict of dicts of the following form that specifies the command line utility and import requirements for this activity.

{
    "commands": {"<cli name>": "<package name>", ...}
    "imports": {"<module name>": "<package name>", ...}
}

The top-level keys are both optional, and this will default to an empty dict.

argstuple, optional

Arguments to be supplied to the func(*args), if needed.

kwargsmapping, optional

Keyword arguments to be supplied to the func(**kwargs), if needed.

descstr, optional

A short description of this activity

all_kwargs()

Returns all kwargs for this activity.

check()

Calls this activity’s check() function.

check_func()

Checks that we can push a docker container

check_requirements()

Checks that an activities requirements are actually available.

checker(check)

Decorator that sets the check function for this activity.

clear_kwargs_from_env()

Removes kwarg from the environment, if they exist.

kwargs_from_env()

Obtains possible func() kwarg from the environment.

setup()

Calls this activity’s setup() initialization function.

setupper(setup)

Decorator that sets the setup function for this activity.

undo()

Reverts to the last instance of this activity. This default implementation uses the revision in the log file from the last time that the activity was started. This may be overridden in a subclass.

undoer(undo)

Decorator that sets the undo function for this activity.

property env_names

Dictionary mapping parameter names to the names of environment varaibles that the activity looks for when it is executed.