Ensure that Docker Compose within projects work as expected

When setting up projects configure Dapple-specific COMPOSE_PROJECT_NAME 
values in the project .env files. This will ensure that containers will
not conflict with default project checkouts using defaults and that 
subsequent docker commands will work on the Dapple-initiated containers.

Update our test to ensure that it works as expected.

.github/workflows/test.yml

@@ -27,6 +27,12 @@ jobs:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
       - name: Initialize environment
         run: "task init ${{ env.TASK_OUTPUT }}"
+      - name: Ensure CMS is initialized properly
+        # If we can list running containers in the CMS directory after
+        # initializing then docker commands within the subdirectory will work
+        # with the Dapple-initiated containers as expected.
+        working-directory: cms
+        run: "docker compose ps --format json | jq -e 'select(.State == \"running\") | length > 0'"
       - name: Link Design system to React components
         run: "task react:link ${{ env.TASK_OUTPUT }}"
       - name: Link Design system and React components to CMS

Taskfile.yml

@@ -2,9 +2,10 @@ version: '3'
 
 output: prefixed
 
-env:
-  # Set project name to avoid conflicts with single checkouts.
-  COMPOSE_PROJECT_NAME: dapple
+vars:
+  COMPOSE_PREFIX: dapple
+  CMS_COMPOSE_PROJECT_NAME: "{{.COMPOSE_PREFIX}}-cms"
+  REACT_COMPOSE_PROJECT_NAME: "{{.COMPOSE_PREFIX}}-react"
 
 tasks:
   init:
@@ -77,8 +78,9 @@ tasks:
   react:clone:
     cmds:
       - git clone https://github.com/danskernesdigitalebibliotek/dpl-react react
+      # Set project name to avoid conflicts with single checkouts.
       - cp react/.env.example react/.env
-      - echo "COMPOSE_PROJECT_NAME=${COMPOSE_PROJECT_NAME}-react" >> react/.env
+      - echo "COMPOSE_PROJECT_NAME={{.REACT_COMPOSE_PROJECT_NAME}}" >> react/.env
 
   react:link:
     dir: react
@@ -117,7 +119,8 @@ tasks:
   cms:clone:
     cmds:
       - git clone https://github.com/danskernesdigitalebibliotek/dpl-cms cms
-      - sed "s|COMPOSE_PROJECT_NAME=dpl-cms|COMPOSE_PROJECT_NAME=${COMPOSE_PROJECT_NAME}-cms|g" <cms/.env.example >cms/.env
+      # Set project name to avoid conflicts with single checkouts.
+      - sed "s|COMPOSE_PROJECT_NAME=dpl-cms|COMPOSE_PROJECT_NAME={{.CMS_COMPOSE_PROJECT_NAME}}|g" <cms/.env.example >cms/.env
 
   cms:link:
     dir: cms