try fix docker for shiny

workflows/shiny/Dockerfile

+# Use an official R base image
+FROM rocker/shiny:4.4
+
+# Install R packages
+RUN R -q -e 'install.packages("ggplot2")'
+
+EXPOSE 3838
+
+# Set the working directory to /app
+WORKDIR /app
+
+# Default command to run when the container starts
+CMD ["R"]

workflows/shiny/shiny-app.R

@@ -3,7 +3,6 @@
 # Load libraries
 
 library(shiny)
-library(RColorBrewer)
 library(ggplot2)
 
 # CLI arguments
@@ -65,4 +64,5 @@ server <- function(input, output, session) {
 
 # Launch app
 
-shinyApp(ui, server)
+sa <- shinyApp(ui, server)
+runApp(sa, port = 3838)

workflows/shiny/workflow.cwl

@@ -4,8 +4,9 @@ cwlVersion: v1.2
 class: CommandLineTool
 
 # hints:
-#   DockerRequirement: 
-#     dockerPull: 
+#   DockerRequirement:
+#     dockerImageId: "shiny"
+#     dockerFile: {$include: "Dockerfile"}
 
 requirements:
   - class: InitialWorkDirRequirement