Add dockerhub-readme action (#51)

.github/workflows/dockerhub_readme.yml

@@ -0,0 +1,41 @@
+name: Update DockerHub Description
+
+on:
+  push:
+    branches:
+      - main
+      - develop
+    tags:
+      - '*.*.*'
+  pull_request:
+    branches:
+      - main
+      - develop
+jobs:
+  update-dockerhub:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v3
+
+      - name: Update DockerHub Description
+        env:
+          DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
+          DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
+          DOCKERHUB_REPO: "samply/obds2fhir"
+        run: |
+          # Read the content of the README.md file and escape newlines and quotes
+          DESCRIPTION=$(jq -Rs '.' README.md)
+          
+          # Log in to DockerHub and get the JWT token
+          TOKEN_RESPONSE=$(curl -s -H "Content-Type: application/json" -X POST -d '{"username": "'"${DOCKERHUB_USERNAME}"'", "password": "'"${DOCKERHUB_TOKEN}"'"}' https://hub.docker.com/v2/users/login/)
+          TOKEN=$(echo $TOKEN_RESPONSE | jq -r .token)
+          
+          # Update the DockerHub repository description
+          UPDATE_RESPONSE=$(curl -s -X PATCH \
+            -H "Authorization: JWT $TOKEN" \
+            -H "Content-Type: application/json" \
+            -d '{"full_description": '"$DESCRIPTION"'}' \
+            https://hub.docker.com/v2/repositories/${DOCKERHUB_REPO}/)
+
+          echo "Update response: $UPDATE_RESPONSE"