chore(ci): set composite action outputs

Author: xmatthias

.github/actions/docker-tags/action.yml

@@ -1,12 +1,49 @@
 name: 'docker-tags'
 description: 'Set Docker default Tag environment variables'
 # inputs:
-# outputs:
+outputs:
+  BRANCH_NAME:
+    description: 'The branch name'
+    value: ${{ steps.tags.outputs.BRANCH_NAME }}
+  TAG:
+    description: 'The Docker tag'
+    value: ${{ steps.tags.outputs.TAG }}
+  TAG_PLOT:
+    description: 'The Docker tag for the plot'
+    value: ${{ steps.tags.outputs.TAG_PLOT }}
+  TAG_FREQAI:
+    description: 'The Docker tag for the freqai'
+    value: ${{ steps.tags.outputs.TAG_FREQAI }}
+  TAG_FREQAI_RL:
+    description: 'The Docker tag for the freqai_rl'
+    value: ${{ steps.tags.outputs.TAG_FREQAI_RL }}
+  TAG_FREQAI_TORCH:
+    description: 'The Docker tag for the freqai_torch'
+    value: ${{ steps.tags.outputs.TAG_FREQAI_TORCH }}
+  TAG_ARM:
+    description: 'The Docker tag for the arm'
+    value: ${{ steps.tags.outputs.TAG_ARM }}
+  TAG_PLOT_ARM:
+    description: 'The Docker tag for the plot arm'
+    value: ${{ steps.tags.outputs.TAG_PLOT_ARM }}
+  TAG_FREQAI_ARM:
+    description: 'The Docker tag for the freqai arm'
+    value: ${{ steps.tags.outputs.TAG_FREQAI_ARM }}
+  TAG_FREQAI_RL_ARM:
+    description: 'The Docker tag for the freqai_rl arm'
+    value: ${{ steps.tags.outputs.TAG_FREQAI_RL_ARM }}
+  TAG_PI:
+    description: 'The Docker tag for the pi'
+    value: ${{ steps.tags.outputs.TAG_PI }}
+  CACHE_TAG_PI:
+    description: 'The Docker cache tag for the pi'
+    value: ${{ steps.tags.outputs.CACHE_TAG_PI }}
 runs:
   using: "composite"
   steps:
     - name: Extract branch name
       shell: bash
+      id: tags
       env:
         BRANCH_NAME_INPUT: ${{ github.event.inputs.branch_name }}
       run: |

.github/workflows/docker-build.yml

@@ -66,7 +66,7 @@ jobs:
       env:
         TAG: ${{ steps.tags.outputs.TAG }}
       run: |
-        docker build -t ${IMAGE_NAME}:${TAG} .
+        docker build -t ${CACHE_IMAGE}:${TAG} .
 
     - name: Build ARMHF image without cache
       if: github.event_name == 'schedule'
@@ -94,6 +94,9 @@ jobs:
     - name: Build ARMHF image with cache
       if: github.event_name != 'schedule'
       # disable provenance due to https://github.com/docker/buildx/issues/1509
+      env:
+        TAG_PI: ${{ steps.tags.outputs.TAG_PI }}
+        CACHE_TAG_PI: ${{ steps.tags.outputs.CACHE_TAG_PI }}
       run: |
         docker buildx build \
           --cache-from=type=registry,ref=${CACHE_TAG_PI} \