Title: Build a Docker Image from a Directory or Project
Version: 0.1.4
Description: Simple utilities to generate a Dockerfile from a directory or project, build the corresponding Docker image, push the image to DockerHub, and publicly share the project via Binder.
Imports: here, renv (≥ 1.0.0)
Suggests: gert, usethis, yaml, rmarkdown, testthat (≥ 3.0.0)
License: GPL (≥ 3)
Encoding: UTF-8
RoxygenNote: 7.3.3
URL: https://www.dmolitor.com/tugboat/
Config/testthat/edition: 3
Config/testthat/start-first: create
Language: en-US
NeedsCompilation: no
Packaged: 2025-10-31 19:35:30 UTC; dmolitor
Author: Daniel Molitor [aut, cph, cre]
Maintainer: Daniel Molitor <molitdj97@gmail.com>
Repository: CRAN
Date/Publication: 2025-11-01 00:30:02 UTC

Prepare project for Binder

Description

The binderize() function converts an existing tugboat project into a Binder–compatible project by creating a Dockerfile that launches RStudio Server via the rocker/binder base image. Optionally, it can add a Binder launch badge to the project's README.

Usage

binderize(
  dockerfile = here::here("Dockerfile"),
  branch = "main",
  hub = "mybinder.org",
  urlpath = "rstudio",
  add_readme_badge = TRUE
)

Arguments

dockerfile

Path to the tugboat-generated Dockerfile.

branch

Character string specifying the Git branch, tag, or commit hash to build. Defaults to "main".

hub

The Binder hub to use. Currently only "mybinder.org" is supported.

urlpath

The URL path to open inside the Binder instance. Defaults to "rstudio", which opens an RStudio Server session.

add_readme_badge

Logical. Whether to add a Binder launch badge to the README. Defaults to TRUE.

Details

This enables one-click, cloud-based execution of your R analysis environment directly from GitHub using Binder.

Currently only GitHub repositories are supported. If add_readme_badge = TRUE, a Binder badge will be appended to the README file, linking to the live Binder instance.

Value

Invisibly returns NULL. Called primarily for its side effects of creating Binder-related files and optionally committing them.

Note

Binder can only build from the remote GitHub repository. The .binder/Dockerfile and README changes must be committed and pushed before launching Binder; otherwise, the build will not reflect local modifications.

See Also

Examples

## Not run: 
binderize(
  dockerfile = here::here("Dockerfile"),
  branch = "main",
  add_readme_badge = TRUE
)

## End(Not run)

Build a Docker image

Description

A simple utility to quickly build a Docker image from a Dockerfile.

Usage

build(
  dockerfile = here::here("Dockerfile"),
  image_name = "tugboat",
  tag = "latest",
  platforms = c("linux/amd64", "linux/arm64"),
  build_args = NULL,
  build_context = here::here(),
  push = FALSE,
  dh_username = NULL,
  dh_password = NULL
)

Arguments

dockerfile

The path to the Dockerfile. The default value is a file named Dockerfile in the project directory surfaced by here::here.

image_name

A string specifying the Docker image name. Default is tugboat.

tag

A string specifying the image tag. Default is latest.

platforms

A vector of strings. Which platforms to build images for. Default is both linux/amd64 and linux/arm64.

build_args

A vector of strings specifying additional build arguments to pass to the ⁠docker buildx build⁠ command. Optional.

build_context

The directory that is the build context for the image(s). Default value is the directory returned by here::here.

push

A boolean indicating whether to push to DockerHub.

dh_username

A string specifying the DockerHub username. Only necessary if push == TRUE.

dh_password

A string specifying the DockerHub password. Only necessary if push == TRUE.

Value

The name of the built Docker image as a string.

Examples

## Not run: 
dock <- create(
  project = here::here(),
  FROM = "rstudio/r-base:devel-bookworm",
  exclude = c("/data", "/examples")
)

image_name <- build(
  dockerfile = here::here("Dockerfile"),
  image_name = "awesome_analysis",
  push = TRUE,
  dh_username = Sys.getenv("DH_USERNAME"),
  dh_password = Sys.getenv("DH_PASSWORD")
)

## End(Not run)

Create a Dockerfile

Description

This function will crawl all files in the current project/directory and (attempt to) detect all R packages and store these in a lockfile. From this lockfile, it will create a corresponding Dockerfile. It will also copy the full contents of the current directory/project into the Docker image. The directory in the Docker container containing the current directory contents will be /current-directory-name. For example if your analysis directory is named incredible_analysis, the corresponding location in the generated Docker image will be ⁠/incredible_analysis⁠.

Usage

create(
  project = here::here(),
  as = file.path(project, "Dockerfile"),
  FROM = NULL,
  ...,
  exclude = NULL,
  verbose = FALSE,
  optimize_pak = TRUE
)

Arguments

project

The project directory. If no project directory is provided, by default, the here package will be used to determine the active project. If no project is currently active, then here defaults to the working directory where initially called.

as

The file path to write to. The default value is file.path(project, "Dockerfile").

FROM

Docker image to start FROM. Default is FROM r-base:R.version.

...

Additional arguments which are passed directly to renv::snapshot. Please see the documentation for that function for all relevant details.

exclude

A vector of strings specifying all paths (files or directories) that should NOT be included in the Docker image. By default, all files in the directory will be included. NOTE: the file and directory paths should be relative to the project directory. They do NOT need to be absolute paths.

verbose

A boolean indicating whether or not to print the resulting Dockerfile to the console. Default value is FALSE.

optimize_pak

A boolean indicating whether or not to try to optimize package installations with pak. Defaults to TRUE. This should rarely be changed from its default value. However, sometimes this optimization may cause build failures. When encountering a build error, a good first step can be to set optimize_pak = FALSE and see if the error persists.

Value

The Dockerfile contained as a string vector. Each vector element corresponds to a line in the Dockerfile.

See Also

here::here; this will be used by default to determine the current project directory.

renv::snapshot which this function relies on to find all R dependencies and create a corresponding lockfile.

Examples

## Not run: 
# Create a Dockerfile based on the rocker/rstudio image.
# Write the Dockerfile locally to here::here("Dockerfile").
# Copy all files except the /data and /examples directories.
dock <- create(
  project = here::here(),
  FROM = "rocker/rstudio",
  exclude = c("/data", "/examples")
)

## End(Not run)

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