Remove Nebula

I'm basically all in on Tailscale now

.yamllint.yml

@@ -5,7 +5,6 @@ ignore: |
   ansible/galaxy_collections
   ansible/group_vars/all/vps-hosts.yml
   ansible/roles/traefik/files/traefik.yml
-  ansible/roles/nebula/files/nebula.yml
   env
 
 rules:

ansible/.ansible-lint

@@ -12,5 +12,4 @@ exclude_paths:
   - galaxy_roles/
   - galaxy_collections/
   - ~/.ansible
-  - roles/nebula/files/nebula.yml
   - roles/traefik/files/traefik.yml

ansible/group_vars/all/nebula.yml

@@ -1,9 +0,0 @@
-nebula:
-  cidr: 10.23.2.0/24
-  clients:
-    casey:
-      ip: 10.23.2.1
-    walker:
-      ip: 10.23.2.4
-    ingress:
-      ip: 10.23.2.5

ansible/group_vars/all/network.yml

@@ -1,2 +1 @@
-private_ip: "{{ nebula.clients[hostname_slug].ip }}"
 ssh_port: 7743

ansible/group_vars/all/tailscale.yml

@@ -5,3 +5,7 @@ tailscale_cidr: 100.64.0.0/24  # It's really /10, but I don't use that many IPs
 tailscale_cidr_ipv6: fd7a:115c:a1e0::/120  # It's really /48, but I don't use that many IPs
 
 tailscale_port: 41641
+
+tailscale_nodes:
+  casey:
+    ip: 100.64.0.1

ansible/host_vars/casey/main.yml

@@ -1,6 +1,3 @@
-nebula_is_lighthouse: true
-nebula_listen_port: "{{ nebula_lighthouse_port }}"
-
 nginx_https_redirect: true
 
 certbot_certs:

ansible/host_vars/ingress.yml

@@ -1,4 +1 @@
-# Listen on a static port so it can be opened in the firewall
-nebula_listen_port: "{{ nebula_lighthouse_port }}"
-
 nginx_https_redirect: true

ansible/main.yml

@@ -12,7 +12,6 @@
     - role: geerlingguy.certbot
       become: true
     - gateway
-    - nebula
     - headscale
     - restic
     - artis3n.tailscale
@@ -58,7 +57,6 @@
   roles:
     - pve_docker
     - yourls
-    - pve_nebula_route
     - privatebin
     - vaultwarden
     - tandoor
@@ -73,7 +71,6 @@
   roles:
     - nginx
     - ingress
-    - nebula
     - artis3n.tailscale
 
 - hosts: pve
@@ -81,7 +78,6 @@
     - role: ironicbadger.proxmox_nag_removal
       become: true
     - zfs
-    - pve_nebula_route
     - role: ironicbadger.snapraid
       become: true
     - role: prometheus.prometheus.node_exporter
@@ -91,7 +87,6 @@
   roles:
     - prometheus
     - uptime_kuma
-    - pve_nebula_route
     - pve_tailscale_route
 
 - hosts: qbittorrent
@@ -105,7 +100,6 @@
     - nginx
     - role: geerlingguy.certbot
       become: true
-    - nebula
     - coredns_docker_proxy
     - plausible
     - restic

ansible/roles/base/files/ssh-jail.conf

@@ -4,4 +4,4 @@ bantime  = 600
 findtime = 30
 maxretry = 5
 port     = {{ ssh_port }},ssh
-ignoreip = {{ wireguard.cidr }},{{ nebula.cidr }},{{ pve_hosts.internal_cidr }},{{ pve_hosts.internal_cidr_ipv6 }},{{ tailscale_cidr }}
+ignoreip = {{ wireguard.cidr }},{{ pve_hosts.internal_cidr }},{{ pve_hosts.internal_cidr_ipv6 }},{{ tailscale_cidr }}

ansible/roles/base/files/sshd_config

@@ -2,7 +2,7 @@
 # Change to a high/odd port if this server is exposed to the internet directly
 Port {{ ssh_port }}
 
-AllowUsers {% if hostname_slug in pve_hosts %}{{ me.user }}@{{ pve_hosts.internal_cidr }}{% endif %} {% if hostname_slug in nebula.clients %}{{ me.user }}@{{ nebula.cidr }}{% endif %} {{ me.user }}@{{ tailscale_cidr }} {{ ssh_extra_allowed_users }}
+AllowUsers {% if hostname_slug in pve_hosts %}{{ me.user }}@{{ pve_hosts.internal_cidr }}{% endif %} {{ me.user }}@{{ tailscale_cidr }} {{ ssh_extra_allowed_users }}
 
 # Bind to all interfaces (change to specific interface if needed)
 ListenAddress 0.0.0.0

ansible/roles/gateway/files/nginx-fail2ban-jail.conf

@@ -6,9 +6,9 @@ maxretry = 100
 filter   = nginx-tcp
 logpath  = /var/log/nginx/ips.log
 port     = http,https,8448
-ignoreip = {{ wireguard.cidr }},{{ nebula.cidr }},{{ pve_hosts.internal_cidr }},{{ pve_hosts.internal_cidr_ipv6 }},{{ vps_hosts.values()|sort|join(",") }},{{ tailscale_cidr }}
+ignoreip = {{ wireguard.cidr }},{{ pve_hosts.internal_cidr }},{{ pve_hosts.internal_cidr_ipv6 }},{{ vps_hosts.values()|sort|join(",") }},{{ tailscale_cidr }}
 
 [traefik]
 enabled = true
 port     = http,https,8448
-ignoreip = {{ wireguard.cidr }},{{ nebula.cidr }},{{ pve_hosts.internal_cidr }},{{ pve_hosts.internal_cidr_ipv6 }},{{ vps_hosts.values()|sort|join(",") }},{{ tailscale_cidr }}
+ignoreip = {{ wireguard.cidr }},{{ pve_hosts.internal_cidr }},{{ pve_hosts.internal_cidr_ipv6 }},{{ vps_hosts.values()|sort|join(",") }},{{ tailscale_cidr }}

ansible/roles/http_proxy/files/squid.conf

@@ -2,7 +2,7 @@
 # Recommended minimum configuration:
 #
 
-acl hide_internal dst {{ wireguard.cidr }} {{ nebula.cidr }} {{ pve_hosts.internal_cidr }} {{ tailscale_cidr }}
+acl hide_internal dst {{ wireguard.cidr }} {{ pve_hosts.internal_cidr }} {{ tailscale_cidr }}
 
 # Example rule allowing access from your local networks.
 # Adapt to list your (internal) IP networks from where browsing

ansible/roles/ingress/files/nftables.conf

@@ -17,9 +17,6 @@ table inet filter {
 
         tcp dport {http, https, {{ ssh_port }}, 8443, 8448} accept
 
-        # Allow nebula
-        udp dport {{ nebula_listen_port }} accept;
-
         # Allow Tailscale
         udp dport {{ tailscale_port }} accept;
     }
@@ -29,7 +26,6 @@ table inet filter {
         policy accept
 
         # NAT - because the proxmox machines may not have routes back
-        ip saddr {{ nebula.cidr }} ip daddr {{ pve_hosts.internal_cidr }} counter masquerade
         ip saddr {{ tailscale_cidr }} counter masquerade
     }
 
@@ -37,12 +33,8 @@ table inet filter {
         type filter hook forward priority mangle
         policy drop
 
-        # Allow traffic from nebula to proxmox network
+        # Allow monitoring of Tailscale network
-        ip saddr {{ nebula.cidr }} ip daddr {{ pve_hosts.internal_cidr }} accept
+        ip saddr {{ pve_hosts.forrest.ip }}/32 ip daddr {{ tailscale_cidr }} accept
-        ip saddr {{ pve_hosts.internal_cidr }} ip daddr {{ nebula.cidr }} ct state related,established accept
-
-        # Allow monitoring of nebula network
-        ip saddr {{ pve_hosts.forrest.ip }}/32 ip daddr {{ nebula.cidr }} accept
 
         # Allow Tailscale exit node
         ip saddr {{ tailscale_cidr }} ip daddr 192.168.0.0/16 drop

ansible/roles/nebula/defaults/main.yml

@@ -1,2 +0,0 @@
-nebula_is_lighthouse: false
-nebula_listen_port: 0

ansible/roles/nebula/files/ca.crt

@@ -1,18 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
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-3661

ansible/roles/nebula/files/certs/casey.crt

@@ -1,20 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
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ansible/roles/nebula/files/certs/casey.key

@@ -1,11 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
-31646561316237653338613966616162363239323863393862376136623639613730633339396230
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ansible/roles/nebula/files/certs/ingress.crt

@@ -1,21 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
-62613762323836666136313634353965643132326439656165623938326130633631623939336434
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ansible/roles/nebula/files/certs/ingress.key

@@ -1,11 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
-37626435646463663062363233393732353239386231366436653663623035656339633136346138
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ansible/roles/nebula/files/certs/walker.crt

@@ -1,20 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
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ansible/roles/nebula/files/certs/walker.key

@@ -1,11 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
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ansible/roles/nebula/files/nebula.yml

@@ -1,59 +0,0 @@
-pki:
-  ca: /etc/nebula/ca.crt
-  cert: /etc/nebula/{{ ansible_hostname }}.crt
-  key: /etc/nebula/{{ ansible_hostname }}.key
-
-static_host_map:
-  "{{ nebula_lighthouse_ip }}": ["{{ nebula_lighthouse_public_ip }}:{{ nebula_lighthouse_port }}"]
-
-
-lighthouse:
-  am_lighthouse: "{{ nebula_is_lighthouse | lower }}"
-  interval: 60
-  hosts:
-{% if not nebula_is_lighthouse %}
-    - "{{ nebula_lighthouse_ip }}"
-{% endif %}
-
-listen:
-  host: 0.0.0.0
-  port: "{{ nebula_listen_port }}"
-
-punchy:
-  punch: true
-
-tun:
-  disabled: false
-  dev: nebula1
-  drop_local_broadcast: false
-  drop_multicast: false
-  tx_queue: 500
-  mtu: 1300
-  routes:
-  unsafe_routes:
-{% if ansible_hostname != "ingress" %}
-    - route: "{{ pve_hosts.internal_cidr }}"
-      via: "{{ nebula.clients.ingress.ip }}"
-{% endif %}
-
-
-logging:
-  level: info
-  format: text
-
-firewall:
-  conntrack:
-    tcp_timeout: 12m
-    udp_timeout: 3m
-    default_timeout: 10m
-    max_connections: 100000
-
-  outbound:
-    - port: any
-      proto: any
-      host: any
-
-  inbound:
-    - port: any
-      proto: any
-      host: any

ansible/roles/nebula/handlers/main.yml

@@ -1,5 +0,0 @@
-- name: restart nebula
-  service:
-    name: nebula
-    state: restarted
-  become: true

ansible/roles/nebula/tasks/main.yml

@@ -1,65 +0,0 @@
-- name: Create config directory
-  file:
-    path: /etc/nebula
-    state: directory
-    mode: "0700"
-  become: true
-
-- name: Install nebula
-  package:
-    name: nebula
-  when: ansible_os_family == 'Archlinux'
-  become: true
-
-- name: Manually install nebula
-  block:
-    - name: Install binaries
-      unarchive:
-        src: https://github.com/slackhq/nebula/releases/download/v{{ nebula_version }}/nebula-linux-amd64.tar.gz
-        dest: /usr/bin
-        remote_src: true
-        mode: "0755"
-
-    - name: Install service
-      get_url:
-        url: https://raw.githubusercontent.com/slackhq/nebula/v{{ nebula_version }}/dist/arch/nebula.service
-        dest: /usr/lib/systemd/system/nebula.service
-        mode: "0644"
-  when: ansible_os_family != 'Archlinux'
-  tags:
-    - skip_ansible_lint
-  notify: restart nebula
-  become: true
-
-- name: Install config
-  template:
-    src: files/nebula.yml
-    dest: /etc/nebula/config.yml
-    mode: "0600"
-  become: true
-  notify: restart nebula
-
-- name: Install CA certificate
-  template:
-    src: files/ca.crt
-    dest: /etc/nebula/ca.crt
-    mode: "0600"
-  become: true
-  notify: restart nebula
-
-- name: Install client certificates
-  template:
-    src: files/certs/{{ item }}
-    dest: /etc/nebula/{{ item }}
-    mode: "0600"
-  loop:
-    - "{{ ansible_hostname }}.key"
-    - "{{ ansible_hostname }}.crt"
-  become: true
-  notify: restart nebula
-
-- name: Enable service
-  service:
-    name: nebula
-    enabled: true
-  become: true

ansible/roles/nebula/vars/main.yml

@@ -1,5 +0,0 @@
-nebula_lighthouse_public_ip: "{{ vps_hosts.casey_ip }}"
-nebula_lighthouse_ip: "{{ nebula.clients.casey.ip }}"
-nebula_lighthouse_port: 6328
-
-nebula_version: 1.8.1

ansible/roles/prometheus/files/prometheus/prometheus.yml

@@ -120,7 +120,7 @@ scrape_configs:
     metrics_path: /metrics
     static_configs:
       - targets:
-          - "{{ nebula.clients.casey.ip }}:9090"
+          - "{{ tailscale_nodes.casey.ip }}:9090"
     metric_relabel_configs:
       - source_labels: [__name__]
         regex: go_.+

ansible/roles/pve_nebula_route/tasks/main.yml

@@ -1,22 +0,0 @@
-- name: Get routes
-  command:
-    argv:
-      - ip
-      - route
-      - show
-      - "{{ nebula.cidr }}"
-  register: routes
-  changed_when: false
-  become: true
-
-- name: Add route to nebula hosts via ingress
-  command:
-    argv:
-      - ip
-      - route
-      - add
-      - "{{ nebula.cidr }}"
-      - via
-      - "{{ pve_hosts.ingress.ip }}"
-  become: true
-  when: nebula.cidr not in routes.stdout

ansible/roles/traefik/files/file-provider-main.yml

@@ -22,6 +22,5 @@ http:
         sourceRange:
           - "{{ tailscale_cidr }}"
           - "{{ tailscale_cidr_ipv6 }}"
-          - "{{ nebula.cidr }}"
           - "{{ pve_hosts.internal_cidr }}"
           - "{{ pve_hosts.internal_cidr_ipv6 }}"

ansible/roles/traefik/files/traefik.yml

@@ -10,7 +10,6 @@ entryPoints:
       trustedIPs:
         - "{{ wireguard.cidr }}"
         - "{{ pve_hosts.internal_cidr }}"
-        - "{{ nebula.cidr }}"
         - "{{ tailscale_cidr }}"
   web-secure:
     address: :443

terraform/casey_vps.tf

@@ -66,15 +66,6 @@ resource "linode_firewall" "casey" {
     ipv6     = ["::/0"]
   }
 
-  inbound {
-    label    = "allow-inbound-nebula"
-    action   = "ACCEPT"
-    protocol = "UDP"
-    ports    = "6328"
-    ipv4     = ["0.0.0.0/0"]
-    ipv6     = ["::/0"]
-  }
-
   inbound {
     label    = "allow-inbound-matrix"
     action   = "ACCEPT"