This folder contains scripts and other files to create (or assist in creating) definition files needed to build Rocker container images.
The Dockerfiles for pre-build images will be generated by executing the scripts in the following order. It will also generate the docker-bake.json files that can be used to build the container images. make-matrix.R will generate files containing the matrix used in GitHub Actions.
./build/make-stacks.R./build/make-dockerfiles.R./build/make-bakejson.R./build/make-matrix.R
These scripts are run daily by GitHub Actions and automatically create a Pull Request if the run results in a variance from the default branch. For example, check the PR when R4.1.1 was released. rocker-org#213
Since 2021-08-10, the information of images built from this repository will be registered in the Wiki automatically.
Running make inspect-image-all (requires docker), then make report-all (requires R >= 4.1.0 and some packages) will generate reports about rocker images, in reports/ directory (ignored by git). The template for the reports is build/reports/template.Rmd and the script for giving variables to the template is ./build/knit-report.R.
The wiki HOME(Home.md) is generated from build/reports/wiki_home.Rmd.
Variables described in the stack files that exist in each version may be referenced during document generation.
So, if you no longer need to build a particular R version, please edit the make-matrix.R script and exclude that R version from the build matrix, instead of remove the stack file for that version.
Images that are not included in the groups defined in docker-bake.json files will not be built, so if you want to select images to build in each version of the stack file, edit the stack files and the make-stacks.R script to adjust the contents of groups.