From 135847d74507215fe44a32c4c271784d5d779cad Mon Sep 17 00:00:00 2001
From: Matt <matt@theregion.beer>
Date: Mon, 23 Jun 2025 09:29:29 -0700
Subject: [PATCH] init commit

---
 README.md                |  5 +++
 defaults/main.yaml       | 10 ++++++
 files/interfaces         |  9 ++++++
 tasks/create_bridge.yaml | 70 ++++++++++++++++++++++++++++++++++++++++
 tasks/main.yaml          | 42 ++++++++++++++++++++++++
 templates/bridge.j2      |  6 ++++
 templates/inventory.j2   |  9 ++++++
 7 files changed, 151 insertions(+)
 create mode 100644 README.md
 create mode 100644 defaults/main.yaml
 create mode 100644 files/interfaces
 create mode 100644 tasks/create_bridge.yaml
 create mode 100644 tasks/main.yaml
 create mode 100644 templates/bridge.j2
 create mode 100644 templates/inventory.j2

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a61e185
--- /dev/null
+++ b/README.md
@@ -0,0 +1,5 @@
+This is a playbook to set up a network bridge.
+
+I wrote it for the VM party.
+
+It will set up a bridge.
\ No newline at end of file
diff --git a/defaults/main.yaml b/defaults/main.yaml
new file mode 100644
index 0000000..eb54b94
--- /dev/null
+++ b/defaults/main.yaml
@@ -0,0 +1,10 @@
+---
+
+
+create_inventory: false
+
+run_stage_two: false
+
+public_deploy: true
+
+...
\ No newline at end of file
diff --git a/files/interfaces b/files/interfaces
new file mode 100644
index 0000000..54b3a2d
--- /dev/null
+++ b/files/interfaces
@@ -0,0 +1,9 @@
+# This file describes the network interfaces available on your system
+# and how to activate them. For more information, see interfaces(5).
+
+source /etc/network/interfaces.d/*
+
+# The loopback network interface
+auto lo
+iface lo inet loopback
+
diff --git a/tasks/create_bridge.yaml b/tasks/create_bridge.yaml
new file mode 100644
index 0000000..52c0c7b
--- /dev/null
+++ b/tasks/create_bridge.yaml
@@ -0,0 +1,70 @@
+---  
+
+# remove cosmos VPN
+- name: remove cosmos openvpn profile 
+  shell: |
+    systemctl stop openvpn-client@cosmos-client.service
+    systemctl disable openvpn-client@cosmos-client.service
+    systemctl daemon-reload
+
+- name: Install Packages  
+  apt:
+    name:
+      - bridge-utils
+    state: present
+
+- name: get current interface name
+  shell: cat /etc/network/interfaces | grep iface | grep -v loopback | awk '{print $2}'
+  register: current_iface_output
+
+- name: set current_iface
+  set_fact:
+    current_iface: '{{ current_iface_output.stdout_lines[0] }}'
+
+- name: display interface name
+  debug:
+    msg: "Current interface is {{ current_iface }}"
+
+- name: update interfaces file
+  block:
+
+  - name: backup original interfaces file
+    shell: "cp /etc/network/interfaces /opt/interfaces-backup"
+  
+  - name: Comment out allow-hotplug line for main interface
+    lineinfile:
+      dest: /etc/network/interfaces
+      regexp: '^#? *allow-hotplug {{ current_iface }}'
+      line: '# allow-hotplug {{ current_iface }}'
+      backrefs: yes
+  
+  - name: Comment out iface line for main interface
+    lineinfile:
+      dest: /etc/network/interfaces
+      regexp: '^#? *iface {{ current_iface }} inet dhcp'
+      line: '# iface {{ current_iface }} inet dhcp'
+      backrefs: yes
+
+- name: Create new bridge interface file
+  template:
+    src: bridge.j2
+    dest: /etc/network/interfaces.d/{{ bridge_name }}
+
+- name: restart networking
+  shell: |
+    systemctl daemon-reload
+    systemctl restart networking
+
+- name: show bridge
+  shell: |
+    brctl show
+    bridge link
+  register: bridge_status
+
+- name: show bridge status
+  debug:
+    msg: 
+      - "{{ bridge_status.stdout_lines }}"
+      
+
+...
\ No newline at end of file
diff --git a/tasks/main.yaml b/tasks/main.yaml
new file mode 100644
index 0000000..48ea622
--- /dev/null
+++ b/tasks/main.yaml
@@ -0,0 +1,42 @@
+---
+# this role installs the bridge and reboots. 
+# optionally it creates a new inventory file on the jenkins host
+# if the appropriate variable is declared
+
+# check interfaces
+- name: check interfaces for vmpbr0
+  shell: ip -o -4 ad
+  register: ip_ad_output
+
+- name: install bridge
+  when: '"vmpbr0" not in ip_ad_output.stdout'
+  include_tasks: create_bridge.yaml
+
+# Create new inventory file
+- name: create inventory file
+  block:
+  - name: get bridge IP
+    shell: ip -o -4 ad li | grep {{ bridge_name }} | awk '{print $4}' | cut -d '/' -f 1
+    register: bridge_ip_output
+
+  - name: set bridge_address variable
+    set_fact:
+      bridge_address: "{{ bridge_ip_output.stdout_lines[0] }}"
+
+  - name: show bridge address
+    debug:
+      msg: 
+        - "{{ bridge_address }}"
+
+  - name: Network Bridge - Create new inventory file on jenkins server
+    delegate_to: localhost
+    template:
+      src: inventory.j2
+      dest: "/var/jenkins_home/ansible/.inv/inventory-{{ STAGE_TWO_HASH }}.yml"
+
+- name: Reboot
+  when: '"vmpbr0" not in ip_ad_output.stdout'
+  command: "reboot now"
+  ignore_errors: yes
+
+...
\ No newline at end of file
diff --git a/templates/bridge.j2 b/templates/bridge.j2
new file mode 100644
index 0000000..8531e06
--- /dev/null
+++ b/templates/bridge.j2
@@ -0,0 +1,6 @@
+## DHCP ip config file for {{ bridge_name }} ##
+auto {{ bridge_name }}
+
+# Bridge setup
+iface {{ bridge_name }} inet dhcp
+    bridge_ports {{ current_iface }}
\ No newline at end of file
diff --git a/templates/inventory.j2 b/templates/inventory.j2
new file mode 100644
index 0000000..1137695
--- /dev/null
+++ b/templates/inventory.j2
@@ -0,0 +1,9 @@
+all:
+  hosts:
+    {{ bridge_address }}:
+      ansible_user: root
+  vars:
+    ansible_connection: ssh
+    ansible_ssh_private_key_file: /var/jenkins_home/jenkins_key    
+
+# host_ip;{{ bridge_address }}