Fix eduroam Wi-Fi Configuration

Add a task to remove any existing eduroam networks

• Do not fail if the network doesn't exist

Use ansible_user_id fact instead of shell expansion for eduroam user-id

Switch to ansible.builtin.shell for cmd execution

playbooks/eduroam.yaml

@@ -9,8 +9,12 @@
       ansible.builtin.fail:
         msg: "This playbook must be run as your own user account."
       when: ansible_user_id == "root"
+    - name: Remove existing Eduroam Wi-Fi Network
+      ansible.builtin.shell:
+        cmd: /usr/bin/nmcli connection delete eduroam
+      ignore_errors: true
     - name: Add Eduroam Wi-Fi Network
-      ansible.builtin.script:
+      ansible.builtin.shell:
         cmd: >
           /usr/bin/nmcli connection add con-name eduroam 
           type wifi 
@@ -20,7 +24,7 @@
           wifi-sec.key-mgmt wpa-eap 
           802-1x.eap peap 
           802-1x.anonymous-identity "@ebi.ac.uk" 
-          802-1x.identity "${USER}@ebi.ac.uk" 
+          802-1x.identity "{{ ansible_user_id }}@ebi.ac.uk" 
           802-1x.phase2-auth mschapv2 
           802-1x.system-ca-certs true