Feature/aegis coreos (#7)

* feat(aegis): add ARM image bootstrap workflow

* feat(aegis): manage firewall and SSH hardening

* feat(aegis): harden Fedora IoT services

* chore(aegis): remove local TLS configuration

* fix(aegis): restore supported Fedora IoT bootstrap

ansible/bootstrap/aegis.bu

@@ -1,32 +1,55 @@
-# Bootstrap monouso per Fedora CoreOS su Aegis.
-# Sostituire le chiavi SSH prima di generare Ignition con butane --strict.
-variant: fcos
-version: 1.6.0
+# One-time bootstrap for Fedora IoT on Aegis (Raspberry Pi 4).
+# Generate only: ./generate-aegis-ign.sh
+# Generate and write an SD card: ./generate-aegis-ign.sh --write IMAGE DEVICE
+# The write mode uses arm-image-installer with the RPi4 target and embeds
+# config.ign; it prompts for Wi-Fi credentials unless supplied through its
+# WIFI_SSID and WIFI_PASS environment variables.
+# For WiFi, the UEFI 'System Table Selection' must be DeviceTree (Esc at boot).
+variant: fiot
+version: 1.0.0
 passwd:
   users:
     - name: pi
+      password_hash: "$6$bNDsU0XC5BxNJS5U$ENDGpdOUPJM3wcXBgNESCQkOqqQ9gN72/xEQoJsAI6QdsaY6mD4G5DBVIv7nHwHQOP35IH1oGRl.Uy3R2iUYQ1"
+      groups:
+        - wheel
       ssh_authorized_keys:
-        - "ssh-ed25519 CHANGEME_AEGIS_SSH_PUBLIC_KEY"
+        - "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINrIxXjA3ffPwziKGR5gzc4gAoBehQPlnEMcXF4Wl0ZS ikaros"
+systemd:
+  units:
+    - name: sshd.service
+      enabled: true
+    - name: rpm-ostree-install-wifi.service
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Layer WiFi packages (driver, firmware, NetworkManager-wifi)
+        Wants=network-online.target
+        After=network-online.target
+        Before=zincati.service
+        ConditionPathExists=!/var/lib/%N.stamp
+
+        [Service]
+        Type=oneshot
+        RemainAfterExit=yes
+        ExecStart=/usr/bin/rpm-ostree install -y --allow-inactive NetworkManager-wifi NetworkManager-wwan wpa_supplicant wireless-regdb iw brcmfmac-firmware
+        ExecStart=/bin/touch /var/lib/%N.stamp
+        ExecStart=/bin/systemctl --no-block reboot
+
+        [Install]
+        WantedBy=multi-user.target
 storage:
-  disks:
-    - device: /dev/mmcblk0
-      wipe_table: false
-      partitions:
-        - label: aegis-data
-          number: 5
-          size_mib: 0
-  filesystems:
-    - device: /dev/disk/by-partlabel/aegis-data
-      format: btrfs
-      label: aegis-data
-      wipe_filesystem: false
-      mount:
-        path: /
-        options:
-          - compress=zstd
   files:
     - path: /etc/hostname
       mode: 0644
       contents:
         inline: |
           aegis
+    - path: /etc/sysctl.d/99-ip-forward.conf
+      mode: 0644
+      contents:
+        inline: |
+          net.ipv4.ip_forward = 1
+  links:
+    - path: /etc/localtime
+      target: ../usr/share/zoneinfo/Europe/Rome