added k3s install

ansible/install_k3s_3node.yaml

@@ -0,0 +1,112 @@
+---
+- 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
+
+  tasks:
+    - name: Check if k3s is already installed
+      ansible.builtin.stat:
+        path: /usr/local/bin/k3s
+      register: k3s_binary
+
+    - name: Check if k3s token file exists
+      ansible.builtin.stat:
+        path: /opt/k3s-token
+      register: k3s_token_file
+      when: inventory_hostname == 'vm1'
+
+    - name: Generate and save k3s token if not present (first node)
+      ansible.builtin.copy:
+        dest: /opt/k3s-token
+        content: "{{ lookup('pipe', 'head -c 16 /dev/urandom | sha256sum | cut -d\" \" -f1') }}"
+        owner: root
+        group: root
+        mode: '0600'
+        force: false
+      register: generated_k3s_token
+      when: inventory_hostname == 'vm1' and not k3s_token_file.stat.exists
+
+    - name: Download k3s install script
+      ansible.builtin.get_url:
+        url: https://get.k3s.io
+        dest: /tmp/k3s_install.sh
+        mode: '0755'
+      when: not k3s_binary.stat.exists
+
+    - name: Ensure .kube directory exists
+      ansible.builtin.file:
+        path: /home/user/.kube
+        state: directory
+        mode: '0755'
+      when: inventory_hostname == 'vm1' and not k3s_binary.stat.exists
+
+    - name: Install k3s on first node
+      ansible.builtin.shell: |
+        set -o pipefail
+        # --write-kubeconfig-mode 644
+        K3S_TOKEN=$(cat /opt/k3s-token) /bin/bash /tmp/k3s_install.sh server --cluster-init --disable traefik --disable servicelb --tls-san 192.168.56.80 --node-name vm1 --node-ip 192.168.56.80 
+        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
+      args:
+        executable: /bin/bash
+        creates: /usr/local/bin/k3s
+      when: inventory_hostname == 'vm1' and not k3s_binary.stat.exists
+
+    - name: Read k3s token from master node (for subsequent nodes)
+      ansible.builtin.command: cat /opt/k3s-token
+      register: k3s_token_content
+      delegate_to: vm1
+      when: inventory_hostname != 'vm1' and not k3s_binary.stat.exists
+      changed_when: false
+
+    - name: Wait for k3s API server to be ready on master node
+      ansible.builtin.wait_for:
+        host: 192.168.56.80
+        port: 6443
+        timeout: 60
+      delegate_to: "{{ inventory_hostname }}"
+      when: inventory_hostname != 'vm1' and not k3s_binary.stat.exists
+
+    - name: Install k3s on subsequent nodes
+      ansible.builtin.shell: |
+        set -o pipefail
+        {% if inventory_hostname == 'vm2' %}
+        NODE_IP="192.168.56.81"
+        {% elif inventory_hostname == 'vm3' %}
+        NODE_IP="192.168.56.82"
+        {% else %}
+        NODE_IP="192.168.56.80"
+        {% endif %}
+        K3S_URL=https://192.168.56.80:6443 \
+        K3S_TOKEN={{ k3s_token_content.stdout }} \
+        INSTALL_K3S_EXEC="server --disable traefik --disable servicelb --node-name={{ inventory_hostname }} --node-ip ${NODE_IP}" \
+        /bin/bash /tmp/k3s_install.sh 2>&1
+        exit_code=$?
+        if [ $exit_code -ne 0 ]; then
+          echo "K3S INSTALL FAILED - Service Status:"
+          systemctl status k3s.service --no-pager -l | head -20
+          echo "Recent logs:"
+          journalctl -u k3s.service --no-pager -l | tail -10
+          exit $exit_code
+        fi
+      args:
+        executable: /bin/bash
+        creates: /usr/local/bin/k3s
+      register: k3s_install_result
+      failed_when: false
+      when: inventory_hostname != 'vm1' and not k3s_binary.stat.exists
+
+    - name: Show k3s failure details
+      ansible.builtin.debug:
+        msg: "{{ k3s_install_result.stdout_lines[-30:] }}"
+      when: inventory_hostname != 'vm1' and not k3s_binary.stat.exists and k3s_install_result.rc != 0
+
+    - name: Fail if k3s installation failed
+      ansible.builtin.fail:
+        msg: "K3S installation failed on {{ inventory_hostname }}"
+      when: inventory_hostname != 'vm1' and not k3s_binary.stat.exists and k3s_install_result.rc != 0
+
+

scripts/configure_vagrant_k3s.sh

@@ -70,18 +70,17 @@ echo "Network information gathered successfully."
 
 # get vagrant ports
 echo "Gathering Vagrant port information..."
-# vagrant ssh-config | grep Port | while read -r line; do
-#     echo "Processing line: $line"
-
-#     # Processing line: Port 2222
-#     # Processing line: Port 2200
-#     # Processing line: Port 2201
 
 
-#     port=$(echo "$line" | awk '{print $2}')
-#     echo "Extracted port: $port"
-#     vagrant_ports+=("$port")
-# done
+while read -r line; do
+    echo "Processing line: $line"
+
+    # Extract the port number
+    port=$(echo "$line" | awk '{print $2}')
+    echo "Extracted port: $port"
+    vagrant_ports+=("$port")
+done < <(vagrant ssh-config | grep Port)
+
 
 
 while read -r line; do
@@ -108,21 +107,6 @@ for port in "${vagrant_ports[@]}"; do
     echo "Port: $port"
 done
 
-# create an ansible inventory file
-# [all]
-# vm1 ansible_host=<vm1_ip> ansible_user=vagrant ansible_ssh_private_key_file=.vagrant/machines/vm1/virtualbox/private_key
-# vm2 ansible_host=<vm2_ip> ansible_user=vagrant ansible_ssh_private_key_file=.vagrant/machines/vm2/virtualbox/private_key
-# vm3 ansible_host=<vm3_ip> ansible_user=vagrant ansible_ssh_private_key_file=.vagrant/machines/vm3/virtualbox/private_key
-
-# echo "Creating Ansible inventory file..."
-# inventory_file="$SCRIPT_DIR/ansible_inventory.ini"
-# echo "[all]" > "$inventory_file"
-# i=0
-# for vm in $running_vms; do
-#     port="${vagrant_ports[$i]}"
-#     echo "$vm ansible_host=127.0.0.1 ansible_port=$port ansible_user=vagrant ansible_ssh_private_key_file=.vagrant/machines/$vm/virtualbox/private_key" >> "$inventory_file"
-#     ((i++))
-# done
 echo "Creating Ansible inventory file..."
 inventory_file="$SCRIPT_DIR/ansible_inventory.ini"
 echo "[all]" > "$inventory_file"
@@ -134,9 +118,6 @@ for vm in $running_vms; do
 done
 
 echo "" >> "$inventory_file"
-# echo "[children]" >> "$inventory_file"
-# echo "vm_group" >> "$inventory_file"
-# echo "" >> "$inventory_file"
 echo "[vms]" >> "$inventory_file"
 for vm in $running_vms; do
     echo $vm >> "$inventory_file"
@@ -163,4 +144,18 @@ if [ $? -ne 0 ]; then
 fi
 
 ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook ../../../ansible/install_keepalived.yaml  --inventory-file ../../../scripts/ansible_inventory.ini  | cat
+# exit if error from playbook
+if [ $? -ne 0 ]; then
+    echo "Ansible playbook failed. Please check your Vagrant VMs and network configuration."
+    exit 1
+fi
+echo "Keepalived installation completed successfully."
 
+
+ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook ../../../ansible/install_k3s_3node.yaml  --inventory-file ../../../scripts/ansible_inventory.ini | cat
+
+if [ $? -ne 0 ]; then
+    echo "Ansible playbook failed. Please check your Vagrant VMs and network configuration."
+    exit 1
+fi
+echo "K3s installation completed successfully."

vagrant/dev/ubuntu/Vagrantfile

@@ -10,33 +10,12 @@ Vagrant.configure("2") do |config|
   config.vm.define "vm1" do |vm1|
     vm1.vm.box = "ubuntu/jammy64"
 
-    # run ip link to list network interfaces on linux
-    # run ipconfig to list network interfaces on Windows
-    # Example output:
-    # Ethernet adapter vEthernet (WSL):
-    # Connection-specific DNS Suffix  . :
-    # IPv6 Address. . . . . . . . . . . : fe80::xxxx:xxxx:xxxx:xxxx%xx
-    # IPv4 Address. . . . . . . . . . . : 192.168.x.x
-    # Subnet Mask . . . . . . . . . . . :
-    # on macOS, run ifconfig to list network interfaces
-    # Example output:
-    # en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
-    # options=400<LINKSTATE>
-    # ether xx:xx:xx:xx:xx:xx
-    # inet6 fe80::xxxx:xxxx:xxxx:xxxx%en0 prefixlen 64 scopeid 0x4
-    # inet 192.168.x.x netmask 0xffffff00 broadcast 192.168.x.255
+    # Fixed private network IP
+    vm1.vm.network "private_network", ip: "192.168.56.80"
 
-    # This configuration sets up a private network for inter-VM communication
-    # and a public network for external access.
-    # The private network uses DHCP to assign IP addresses automatically.
-    # Private network for inter-VM communication using DHCP
-
-    # Uncomment the following line to use a specific network interface for the public network
-    # and replace "wlp0s20f3" with your actual network interface name.
+    # Public network for external access
     vm1.vm.network "public_network", bridge: "wlp0s20f3"
 
-    vm1.vm.network "private_network", type: "dhcp"
-
     vm1.vm.provider "virtualbox" do |vb|
       vb.memory = "2048" # 2GB memory
       vb.cpus = 2
@@ -53,8 +32,8 @@ Vagrant.configure("2") do |config|
   config.vm.define "vm2" do |vm2|
     vm2.vm.box = "ubuntu/jammy64"
 
-    # Private network for inter-VM communication using DHCP
-    vm2.vm.network "private_network", type: "dhcp"
+    # Fixed private network IP
+    vm2.vm.network "private_network", ip: "192.168.56.81"
 
     # Public network for external access
     vm2.vm.network "public_network", bridge: "wlp0s20f3"
@@ -75,8 +54,8 @@ Vagrant.configure("2") do |config|
   config.vm.define "vm3" do |vm3|
     vm3.vm.box = "ubuntu/jammy64"
 
-    # Private network for inter-VM communication using DHCP
-    vm3.vm.network "private_network", type: "dhcp"
+    # Fixed private network IP
+    vm3.vm.network "private_network", ip: "192.168.56.82"
 
     # Public network for external access
     vm3.vm.network "public_network", bridge: "wlp0s20f3"