From 211ed51d37cb4f4c190e557805c74c16e7eaf80f Mon Sep 17 00:00:00 2001
From: alex <alexpolo2850@gmail.com>
Date: Thu, 17 Oct 2024 18:56:37 +0200
Subject: [PATCH] change1

---
 backupubu_backup.yml | 134 +++++++++++++++++++++++++++++++++++++++++++
 harden_ssh.yml       |  23 ++++++++
 2 files changed, 157 insertions(+)
 create mode 100644 backupubu_backup.yml
 create mode 100644 harden_ssh.yml

diff --git a/backupubu_backup.yml b/backupubu_backup.yml
new file mode 100644
index 0000000..ff5ecec
--- /dev/null
+++ b/backupubu_backup.yml
@@ -0,0 +1,134 @@
+---
+- name: Install backup software and configure backup to Synology NAS
+  hosts: all
+  become: false
+  vars_files:
+    - vault.yml
+
+  vars:
+    backup_dir: "/home"
+    nas_target_base: "/volume1/Backup"
+    cron_time: "0 17 * * 0"  # This represents every Sunday at 17:00
+    hostname: "{{ ansible_hostname }}"
+    cron_name: "Wake NAS and Backup to Synology NAS"
+    ssh_key_paths:
+      - "/home/alex/.ssh/id_ed25519.pub"
+      - "/home/alex/.ssh/id_rsa.pub"
+      - "/home/alex/.ssh/id_ecdsa.pub"
+      - "/home/alex/.ssh/id_dsa.pub"
+
+  tasks:
+    - name: Update apt cache
+      apt:
+        update_cache: yes
+      become: yes
+
+    - name: Ensure rsync is installed
+      apt:
+        name: rsync
+        state: present
+      become: yes
+
+    - name: Ensure etherwake is installed
+      apt:
+        name: etherwake
+        state: present
+      become: yes
+
+    - name: Find network interface with 192.168.1.x IP address
+      shell: ip -o -4 addr list | grep '192.168.1.' | awk '{print $2}'
+      register: network_interface
+
+    - name: Set network_interface fact
+      set_fact:
+        network_interface: "{{ network_interface.stdout }}"
+
+    - name: Find existing SSH public key
+      stat:
+        path: "{{ item }}"
+      with_items: "{{ ssh_key_paths }}"
+      register: ssh_key_check
+
+    - name: Set SSH key path
+      set_fact:
+        ssh_key_path: "{{ ssh_key_check.results | selectattr('stat.exists', 'equalto', true) | map(attribute='item') | first }}"
+      when: ssh_key_check.results | selectattr('stat.exists', 'equalto', true) | length > 0
+
+    - name: Debug SSH key path
+      debug:
+        msg: "SSH key path: {{ ssh_key_path }}"
+
+    - name: Read the SSH public key
+      slurp:
+        src: "{{ ssh_key_path }}"
+      register: ssh_pub_key
+      when: ssh_key_path is defined
+
+    - name: Ensure .ssh directory exists on the NAS
+      command: "ssh alex@alex-ds414.localdomain 'mkdir -p ~/.ssh && chmod 700 ~/.ssh'"
+      ignore_errors: yes
+
+    - name: Add the SSH public key to the NAS authorized_keys
+      command: "ssh alex@alex-ds414.localdomain 'echo {{ ssh_pub_key.content | b64decode }} >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys'"
+      when: ssh_key_path is defined
+
+    - name: Show debug info for rsync_user and rsync_password
+      debug:
+        msg: "rsync_user: {{ rsync_user }}, rsync_password: {{ rsync_password }}"
+
+    - name: Wake up the NAS
+      command: sudo etherwake -i {{ network_interface }} 00:11:32:43:FA:11
+      async: 0
+      poll: 0
+      become: yes
+
+    - name: Wait for 1 minute to allow NAS to start up initially
+      wait_for:
+        timeout: 60
+
+    - name: Check if NAS is reachable via SSH
+      command: "ssh -o BatchMode=yes -o ConnectTimeout=5 alex@alex-ds414.localdomain echo 'SSH connection successful'"
+      register: nas_ping_result
+      ignore_errors: yes
+
+    - name: Fail if the NAS is not reachable via SSH
+      fail:
+        msg: "NAS is not reachable via SSH. Exiting."
+      when: nas_ping_result.rc != 0
+
+    - name: Perform the test rsync
+      command: rsync -av --dry-run --delete {{ backup_dir }}/ alex@alex-ds414.localdomain:{{ nas_target_base }}/{{ hostname }}/
+      register: rsync_test
+      ignore_errors: yes
+      failed_when: rsync_test.rc not in [0, 23]
+
+    - name: Fail if the rsync test fails for reasons other than permission issues
+      fail:
+        msg: "rsync test failed for reasons other than permission issues. Exiting."
+      when: rsync_test.rc not in [0, 23]
+
+    - name: Perform the backup using rsync
+      command: rsync -av --delete {{ backup_dir }}/ alex@alex-ds414.localdomain:{{ nas_target_base }}/{{ hostname }}/
+      when: rsync_test.rc in [0, 23]
+      ignore_errors: yes
+      failed_when: rsync_test.rc not in [0, 23]
+
+    - name: Check if cron job exists
+      cron:
+        name: "{{ cron_name }}"
+        state: present
+      register: cron_present
+      ignore_errors: yes
+
+    - name: Add cron job for backup if not present
+      cron:
+        name: "{{ cron_name }}"
+        minute: "{{ cron_time.split()[0] }}"
+        hour: "{{ cron_time.split()[1] }}"
+        day: "{{ cron_time.split()[2] }}"
+        month: "{{ cron_time.split()[3] }}"
+        weekday: "{{ cron_time.split()[4] }}"
+        job: "sudo etherwake -i {{ network_interface }} 00:11:32:43:FA:11 && sleep 300 && rsync -av --delete /home/ alex@alex-ds414.localdomain:{{ nas_target_base }}/{{ hostname }}/"
+      when: rsync_test.rc in [0, 23] and (cron_present is not defined or cron_present is failed)
+      become: yes
+
diff --git a/harden_ssh.yml b/harden_ssh.yml
new file mode 100644
index 0000000..589bc0b
--- /dev/null
+++ b/harden_ssh.yml
@@ -0,0 +1,23 @@
+---
+- name: Harden SSH configuration
+  hosts: all
+  become: true
+  tasks:
+    - name: Ensure root login is disabled
+      lineinfile:
+        path: /etc/ssh/sshd_config
+        regexp: '^PermitRootLogin'
+        line: 'PermitRootLogin no'
+        state: present
+
+    - name: Disable password authentication
+      lineinfile:
+        path: /etc/ssh/sshd_config
+        regexp: '^PasswordAuthentication'
+        line: 'PasswordAuthentication no'
+        state: present
+
+    - name: Restart SSH service
+      service:
+        name: ssh
+        state: restarted