roles/common: Use blocks to tag children of dynamic tasks

When using dynamic includes, child tasks do not inherit tags from their
parents. You must tag the parent and each child task separately, or use
a block to group children and then apply a tag to a block.

See: https://docs.ansible.com/ansible/devel/porting_guides/porting_guide_2.5.html

roles/common/tasks/packages_Debian.yml

@@ -1,34 +1,34 @@
 ---
-- name: Configure apt mirror
-  template: src=sources.list.j2 dest=/etc/apt/sources.list owner=root group=root mode=0644
-  tags: packages
 
-- name: Install base packages
-  apt: name={{ item }} update_cache=yes
-  loop:
-    - git
-    - tmux
-    - iotop
-    - htop
-    - strace
-    - cron-apt #how does this work with systemd?
-    - safe-rm
-    - debian-goodies
-    - mosh
-    - python-pycurl # for ansible's apt_repository
-    - lzop
-    - vim
-    - lrzip
-    - unzip
-    - apt-transport-https # for https support in apt
-  tags: packages
+- block:
+  - name: Configure apt mirror
+    template: src=sources.list.j2 dest=/etc/apt/sources.list owner=root group=root mode=0644
 
-- name: Configure cron-apt
-  import_tasks: cron-apt.yml
-  tags: cron-apt
+  - name: Install base packages
+    apt: name={{ item }} update_cache=yes
+    loop:
+      - git
+      - tmux
+      - iotop
+      - htop
+      - strace
+      - cron-apt #how does this work with systemd?
+      - safe-rm
+      - debian-goodies
+      - mosh
+      - python-pycurl # for ansible's apt_repository
+      - lzop
+      - vim
+      - lrzip
+      - unzip
+      - apt-transport-https # for https support in apt
 
-- name: Install tarsnap
-  import_tasks: tarsnap.yml
+  - name: Configure cron-apt
+    import_tasks: cron-apt.yml
+    tags: cron-apt
+
+  - name: Install tarsnap
+    import_tasks: tarsnap.yml
   tags: packages
 
 # vim: set sw=2 ts=2: