try to use cache between mergeData and buildDocker

.gitlab-ci.yml

@@ -71,10 +71,10 @@ mergeData:
   script:
     - 'cd R && Rscript main_forecast_plotly.R "merge"'
     - "curl --request POST --form token=$TRIGGERTOKEN --form ref=master https://gitlab.paca.inrae.fr/api/v4/projects/105/trigger/pipeline"
-  artifacts:
+  cache:
+    key: data-cache
     paths:
       - R/list_figures.rds
-    expire_in: 1 week
 
 ## Build docker image of the R shiny app
 ## using DockerFile and register it in the 
@@ -89,10 +89,13 @@ buildImageDocker:
     DOCKER_DRIVER: overlay2
   services:
     - docker:19.03.0-dind
+  cache:
+    key: data-cache
   before_script:
-    - 'apk add --update curl' 
-    - 'curl --header "PRIVATE-TOKEN: $PTOKEN" -o artifacts.zip "https://gitlab.paca.inrae.fr/api/v4/projects/105/jobs/artifacts/master/download?job=mergeData"'
-    - "unzip -o artifacts.zip && mv R/list_figures.rds www/list_figures.rds"
+    #- 'apk add --update curl' 
+    #- 'curl --header "PRIVATE-TOKEN: $PTOKEN" -o artifacts.zip "https://gitlab.paca.inrae.fr/api/v4/projects/105/jobs/artifacts/master/download?job=mergeData"'
+    #- "unzip -o artifacts.zip && mv R/list_figures.rds www/list_figures.rds"
+    - "cp R/list_figures.rds www/list_figures.rds"
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
   stage: build_img
   rules: