Add Dynamic DNS and Heartbeat Playbook

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "Configs/elk-stack/docker-elk"]
 	path = Configs/elk-stack/docker-elk
 	url = https://github.com/deviantony/docker-elk.git
+[submodule "Ansible/homelab-vault"]
+	path = Ansible/homelab-vault
+	url = gitea@10.0.0.8:BenHays42/homelab-vault.git

Ansible/cloudflare-dns.yml

@@ -0,0 +1,36 @@
+---
+- name: Cloudflare Dynamic DNS Script
+  hosts: linux
+  remote_user: bhays
+  become: true
+  become_user: root
+  vars_files:
+    - homelab-vault/secrets.yml
+  tasks:
+    - name: Copy Cloudflare IPAM Script
+      ansible.builtin.copy:
+        owner: bhays
+        mode: "0600"
+        src: ../Bash/cloudflare-dns.sh
+        dest: /opt/cloudflare-dns.sh
+    - name: Insert API Token
+      ansible.builtin.replace:
+        path: "/opt/cloudflare-dns.sh"
+        regexp: "^cloudflare_zone_api_token=''"
+        replace: "cloudflare_zone_api_token='{{ CF_API_TOKEN }}'"
+    - name: Insert Zone ID
+      ansible.builtin.replace:
+        path: "/opt/cloudflare-dns.sh"
+        regexp: "^zoneid=''"
+        replace: "zoneid='{{ CF_ZONE_ID }}'"
+    - name: Insert Zone ID
+      ansible.builtin.replace:
+        path: "/opt/cloudflare-dns.sh"
+        regexp: "^dns_record=''"
+        replace: "dns_record='{{ inventory_hostname }}'"
+    - name: Add Cronjob for IPAM Script
+      ansible.builtin.cron:
+        name: "Cloudflare IPAM Script"
+        job: "/opt/cloudflare-dns.sh"
+        special_time: hourly
+        user: bhays

Ansible/debian.yml

@@ -4,6 +4,8 @@
   remote_user: bhays
   become: true
   become_user: root
+  vars_files:
+    - homelab-vault/secrets.yml
   tasks:
     - name: Update/install Debian Utilities
       ansible.builtin.apt:

Ansible/heartbeat.yml

@@ -0,0 +1,15 @@
+---
+- name: Betterstack Heartbeat Cronjob
+  hosts: linux
+  remote_user: bhays
+  become: true
+  become_user: root
+  vars_files:
+    - homelab-vault/secrets.yml
+  tasks:
+    - name: Add Cronjob
+      ansible.builtin.cron:
+        name: "Betterstack Heartbeat"
+        job: "curl {{ heartbeat_url }}"
+        special_time: hourly
+        user: bhays

Ansible/homelab-vault

@@ -0,0 +1 @@
+Subproject commit d7f23e227008f394956850c71655389cd67a304c

Ansible/inventory.ini

@@ -2,8 +2,9 @@
 proxmox.benhays.cloud
 
 [linux]
-devops.benhays.cloud
-web.benhays.cloud
-tailscale.benhays.cloud
-bitwarden.benhays.cloud
-nextcloud.benhays.cloud
+devops.benhays.cloud heartbeat_url="https://uptime.betterstack.com/api/v1/heartbeat/xVM4MLbQARNndNDcSA5bsnpR"
+web.benhays.cloud heartbeat_url='https://uptime.betterstack.com/api/v1/heartbeat/cyWGjSGDk1VFJNtabDB8tchU'
+tailscale.benhays.cloud heartbeat_url='https://uptime.betterstack.com/api/v1/heartbeat/Sp7CXapJDwtjQmCMVdjeQsMy'
+bitwarden.benhays.cloud heartbeat_url='https://uptime.betterstack.com/api/v1/heartbeat/YUBUtgJjBDJKEqM1qUXroj1v'
+nextcloud.benhays.cloud heartbeat_url='https://uptime.betterstack.com/api/v1/heartbeat/oijvrZGFtc9Dev2AefP8iTfB'
+

Bash/cloudflare-dns.sh

@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+
+ttl="600"
+proxied="false"
+zoneid=''
+cloudflare_zone_api_token=''
+dns_record=''
+
+REIP='^((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.){3}(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])$'
+
+if which ip >/dev/null; then
+    interface=$(ip route get 1.1.1.1 | awk '/dev/ { print $5 }')
+    ip=$(ip -o -4 addr show ${interface} scope global | awk '{print $4;}' | cut -d/ -f 1)
+else
+    echo "Error! 'ip' command not found. Please install iproute2."
+    exit 1
+fi
+
+if [ -z "$ip" ]; then
+    echo "Error! Can't read ip from ${interface}"
+    exit 1
+fi
+
+echo "==> Internal ${interface} IP is: $ip"
+
+IFS=',' read -d '' -ra dns_records <<<"$dns_record,"
+unset 'dns_records[${#dns_records[@]}-1]'
+declare -a dns_records
+
+for record in "${dns_records[@]}"; do
+    if [ "${proxied}" == "false" ]; then
+        if which nslookup >/dev/null; then
+            dns_record_ip=$(nslookup ${record} 1.1.1.1 | awk '/Address/ { print $2 }' | sed -n '2p')
+        else
+            dns_record_ip=$(host -t A ${record} 1.1.1.1 | awk '/has address/ { print $4 }' | sed -n '1p')
+        fi
+        
+        if [ -z "$dns_record_ip" ]; then
+            echo "Error! Can't resolve the ${record} via DNS"
+            exit 1
+        fi
+        is_proxed="${proxied}"
+    fi
+    
+    cloudflare_record_info=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zoneid/dns_records?type=A&name=$record" \
+      -H "Authorization: Bearer $cloudflare_zone_api_token" \
+      -H "Content-Type: application/json")
+    
+    if [[ ${cloudflare_record_info} == *"\"success\":false"* ]]; then
+        echo ${cloudflare_record_info}
+        echo "Error! Can't get ${record} record information from Cloudflare API"
+        exit 1
+    fi
+    
+    cloudflare_dns_record_id=$(echo ${cloudflare_record_info} | grep -o '"id":"[^"]*' | cut -d'"' -f4)
+    
+    update_dns_record=$(curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/$zoneid/dns_records/$cloudflare_dns_record_id" \
+      -H "Authorization: Bearer $cloudflare_zone_api_token" \
+      -H "Content-Type: application/json" \
+      --data "{\"type\":\"A\",\"name\":\"$record\",\"content\":\"$ip\",\"ttl\":$ttl,\"proxied\":$proxied}")
+    
+    if [[ ${update_dns_record} == *"\"success\":false"* ]]; then
+        echo ${update_dns_record}
+        echo "Error! Update failed"
+        exit 1
+    fi
+    
+    echo "==> Success!"
+    echo "==> $record DNS Record updated to: $ip, ttl: $ttl, proxied: $proxied"
+done