playbook/build-docker: using shell as the docker module is not available

Signed-off-by: Marc Mattmüller <marc.mattmueller@netmodule.com>

playbooks/getting_started/build-jenkins-docker-image.yml

@@ -4,8 +4,8 @@
     root_path: "~/nwl-ci"
   tasks:
     - name: Build the Jenkins Image
-        community.docker.docker_image:
-        name: nwl-jenkins
-        build:
-          path: "{{root_path}}/docker"
-        source: build
+      ansible.builtin.shell: |
+        docker build -t jenkins:nwl-0.0.1 .
+      args:
+        chdir: "{{root_path}}/docker"
+        executable: /bin/bash