updated dockerfile to reflect jammy image

Author: rela-v

Dockerfile

@@ -1,5 +1,6 @@
-# 1. Use the Jammy-based image to match Posit's Ubuntu 22.04 binaries
-FROM rocker/r-ver:4.4.2-jammy
+# 1. Use R 4.4.2 which is based on Ubuntu 22.04 (Jammy)
+# This provides libicu70 required by your stringi/Posit binaries.
+FROM rocker/r-ver:4.4.2
 
 # 2. Install system dependencies + Pandoc
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -16,7 +17,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 WORKDIR /project
 
 # 3. FORCE BINARIES & PARALLELISM
-# These binaries now match the OS (Jammy) perfectly, preventing 'stringi' errors
+# The repository URL for 'jammy' now aligns with the OS version of this image.
 ENV RENV_CONFIG_REPOS_OVERRIDE="https://packagemanager.posit.co/cran/__linux__/jammy/latest"
 ENV RENV_DOWNLOAD_METHOD="libcurl"
 ENV RENV_PATHS_LIBRARY="renv/library"
@@ -27,12 +28,12 @@ COPY renv/activate.R renv/activate.R
 RUN mkdir -p renv/library data
 
 # 5. Restore using all available CPU cores
+# This should now pull AMD64 binaries instantly on GitHub Actions.
 RUN R -e "options(Ncpus = parallel::detectCores()); renv::restore()"
 
-# 6. Copy project assets (Ensure configuration.yml is NOT copied if you want to mount it at runtime)
+# 6. Copy project assets
 COPY *.Rmd ./
 COPY _site.ym[l] ./ 
-# Optional: COPY configuration.yml configuration.yml (only if you want a baked-in default)
 
 # 7. Render
 CMD ["R", "-e", "rmarkdown::render_site()"]