update: Added Longhorn installation process and updated memory allocation for VMs

update: Added 'git' and 'vagrant' to required tools in pre-flight checks

fix: configured k3s install to use internal nic for flanel network

vagrant/dev/ubuntu/ansible/install_k3s_3node.yaml

@@ -55,7 +55,7 @@
     - name: Install k3s on first node
       ansible.builtin.shell: |
         set -o pipefail
-        K3S_TOKEN=$(cat /opt/k3s-token) /bin/bash /tmp/k3s_install.sh server --cluster-init --disable traefik --disable servicelb --tls-san {{ k3s_url_ip }} --node-name vm1 --node-ip {{ vm1_ip }}
+        K3S_TOKEN=$(cat /opt/k3s-token) /bin/bash /tmp/k3s_install.sh server --cluster-init --disable traefik --disable servicelb --tls-san {{ k3s_url_ip }} --node-name vm1 --node-ip {{ vm1_ip }} --flannel-iface=enp0s8
         if [ $? -eq 0 ]; then
           mkdir -p /home/vagrant/.kube && cp /etc/rancher/k3s/k3s.yaml /home/vagrant/.kube/config && chown vagrant:vagrant /home/vagrant/.kube/config
         fi
@@ -91,7 +91,7 @@
         {% endif %}
         K3S_URL=https://{{ k3s_url_ip }}:6443 \
         K3S_TOKEN={{ k3s_token_content.stdout }} \
-        INSTALL_K3S_EXEC="server --server https://{{ k3s_url_ip }}:6443 --disable traefik --disable servicelb --node-name={{ inventory_hostname }} --node-ip ${NODE_IP}" \
+        INSTALL_K3S_EXEC="server --server https://{{ k3s_url_ip }}:6443 --disable traefik --disable servicelb --node-name={{ inventory_hostname }} --node-ip ${NODE_IP} --flannel-iface=enp0s8" \
         /bin/bash /tmp/k3s_install.sh 2>&1
         exit_code=$?
         if [ $exit_code -ne 0 ]; then

vagrant/dev/ubuntu/ansible/install_longhorn_prereqs.yaml

@@ -0,0 +1,47 @@
+---
+- name: Install k3s on 3-node cluster
+  hosts: vm1,vm2,vm3
+  become: true
+  become_user: root
+  serial: 1 # Ensure tasks are executed one host at a time
+  vars_files:
+    - vars.yaml
+
+  tasks:
+    - name: Install open-iscsi on all nodes
+      ansible.builtin.package:
+        name: open-iscsi
+        state: present
+        
+    - name: Install nfs-common on all nodes
+      ansible.builtin.package:
+        name: nfs-common
+        state: present
+
+    - name: Install cryptsetup and dmsetup packages
+      ansible.builtin.package:
+        name: 
+          - cryptsetup
+          - dmsetup
+        state: present
+        
+    - name: Load dm_crypt kernel module
+      community.general.modprobe:
+        name: dm_crypt
+        state: present
+      
+    - name: Make dm_crypt module load on boot
+      ansible.builtin.lineinfile:
+        path: /etc/modules
+        line: dm_crypt
+        create: yes
+        
+    - name: Check if dm_crypt module is loaded
+      ansible.builtin.shell: lsmod | grep dm_crypt
+      register: dm_crypt_check
+      failed_when: false
+      changed_when: false
+      
+    - name: Show dm_crypt status
+      ansible.builtin.debug:
+        msg: "dm_crypt module is {{ 'loaded' if dm_crypt_check.rc == 0 else 'not loaded' }}"

vagrant/dev/ubuntu/ansible/provision_workstation.sh

@@ -3,7 +3,6 @@
 sudo apt-get update
 sudo apt-get install -y software-properties-common git vim python3.10-venv
 
-
 # Set up ansible environment for vagrant user
 sudo -u vagrant mkdir -p /home/vagrant/.ansible
 sudo -u vagrant touch /home/vagrant/.ansible/ansible.cfg
@@ -103,7 +102,20 @@ else
     echo "Provisioning block already present in $BASHRC"
 fi
 
-ANSIBLE_HOST_KEY_CHECKING=False ansible --inventory-file /home/vagrant/ansible/ansible_inventory.ini  -m ping vm1,vm2,vm3 
+echo 
+echo -------------------------
+echo 
+
+su - vagrant
+id
+
+echo 
+echo -------------------------
+echo
+
+ssh-add ~/.ssh/vm*_key
+
+ANSIBLE_SUPPRESS_INTERPRETER_DISCOVERY_WARNING=1 ANSIBLE_HOST_KEY_CHECKING=False ansible --inventory-file /home/vagrant/ansible/ansible_inventory.ini  -m ping vm1,vm2,vm3 
 
 if [ $? -ne 0 ]; then
     echo "Ansible ping failed. Please check your Vagrant VMs and network configuration."
@@ -111,7 +123,7 @@ if [ $? -ne 0 ]; then
 fi
 
 # install_keepalived.yaml
-ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook install_keepalived.yaml --inventory-file ansible_inventory.ini 
+ANSIBLE_SUPPRESS_INTERPRETER_DISCOVERY_WARNING=1 ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook install_keepalived.yaml --inventory-file ansible_inventory.ini 
 if [ $? -ne 0 ]; then
     echo "Ansible playbook failed. Please check your Vagrant VMs and network configuration."
     exit 1
@@ -119,14 +131,14 @@ fi
 echo "Keepalived installation completed."
 
 # install_k3s_3node.yaml
-ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook install_k3s_3node.yaml --inventory-file ansible_inventory.ini 
+ANSIBLE_SUPPRESS_INTERPRETER_DISCOVERY_WARNING=1 ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook install_k3s_3node.yaml --inventory-file ansible_inventory.ini 
 if [ $? -ne 0 ]; then
     echo "Ansible playbook failed. Please check your Vagrant VMs and network configuration."
     exit 1
 fi
 
 # copy_k8s_config.yaml
-ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook copy_k8s_config.yaml --inventory-file ansible_inventory.ini 
+ANSIBLE_SUPPRESS_INTERPRETER_DISCOVERY_WARNING=1ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook copy_k8s_config.yaml --inventory-file ansible_inventory.ini 
 if [ $? -ne 0 ]; then
     echo "Ansible playbook failed. Please check your Vagrant VMs and network configuration."
     exit 1