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+# Ansible role to set a Raspberry Pi as an information display
+
+To be used from a `cloud-init` script when booting the Raspberry Pi for the first time.
+
+The script uses **Ansible-pull** to run the playbook from this repo.
+
+## Cloud-init script
+
+Should be stored in the SD card used to boot the Raspberry Pi, in the file
+`/system-boot/user-data`:
+
+
+```yaml
+config:
+  user.vendor-data: |
+    #cloud-config
+    package_upgrade: true
+    packages:
+      - ansible
+    users:
+      - name: sistemas
+        ssh-import-id: gh:jorgeegomez
+    write_files:
+      - encoding: gzip
+        owner: root:root
+        path: /root/.ssh/id_ed25519.pub
+        permissions: '0644'
+        content: !!binary |
+          H4sIC ... 🔒 gzipped and base64-encoded public key,
+                    registered in Gitea as deploy key for this repo ... AAA==
+      - encoding: gzip
+        owner: root:root
+        path: /root/.ssh/id_ed25519
+        permissions: '0600'
+        content: !!binary |
+          H4sIC ... 🔒 corresponding private key, gzipped and
+                    base64-encoded ... AAA==
+      - encoding: gzip
+        owner: root:root
+        path: /root/.ssh/known_hosts
+        permissions: '0644'
+        content: !!binary |
+          H4sICPS ... 🔒 gzipped and base64-encoded host key for gitea ... AAA==
+    runcmd:
+      - [ ansible-pull, -U, "ssh://git@gitea.agofer.net:22001/jegomez/ansible-role-raspberry-display.git" ]    
+```
+