Add roles and variables

Makefile

@@ -1,13 +1,22 @@
 list:
 	vagrant status
-make up:
+up:
 	cd vagrant && vagrant up
-make destroy:
+destroy:
 	cd vagrant && vagrant destroy -f
 
-make ansible-master:
+ansible-setup:
+	ansible-galaxy install -r ansible/ansible-requirements.yml
+ansible-master:
 	cd ansible && ansible-playbook -i ../vagrant/.vagrant/provisioners/ansible/inventory/vagrant_ansible_inventory master.yml
 
-make setup-keys:
+setup-keys:
 	mkdir -p ./keys
 	ssh-keygen -t ed25519 -f ./keys/access -N "" -q
+
+ansible-watch:
+	find ./ansible -type f | entr -p make ansible-master
+
+full-reset:
+	make destroy 
+	make up && make ansible-master

ansible/ansible-requirements.yml

@@ -0,0 +1,11 @@
+---
+# Ansible Galaxy Requirements
+# Install with: ansible-galaxy install -r ansible-requirements.yml
+
+# https://github.com/geerlingguy/ansible-role-swap
+- name: geerlingguy.swap
+  version: 1.1.1
+
+# https://github.com/geerlingguy/ansible-role-docker
+- name: geerlingguy.docker
+  version: 7.6.0

ansible/ansible.cfg

@@ -1,2 +1,4 @@
 [defaults]
 host_key_checking=False
+# stdout_callback = minimal
+color = true

ansible/group_vars/all.yml

@@ -0,0 +1,14 @@
+---
+swap_file_size_mb: 256 
+swap_file_state: present
+swap_file_existing_size_mb: 0
+
+docker_edition: 'ce'
+docker_packages:
+  - "docker-{{ docker_edition }}"
+  - "docker-{{ docker_edition }}-cli"
+  - "docker-{{ docker_edition }}-rootless-extras"
+docker_packages_state: present
+docker_users:
+  - vagrant
+

ansible/master.yml

@@ -1,31 +1,49 @@
 ---
-- hosts: all
+- hosts: swarm_master
   become: true
 
+  
+  
+  vars_files:
+    - group_vars/all.yml
+  vars:
+    swap_file_state: present
+    swap_file_existing_size_mb: 0
+  
+  roles:
+    - role: geerlingguy.swap
+    - role: geerlingguy.docker
+    - role: common
+
   tasks:
-    # write hello world to a file in the home directory
+    - name: Check memory and swap usage
-    - name: write hello 
+      command: free -m
-      copy:
+      register: memory_info
-        content: "hello ansible from ansible-manager!"
+      changed_when: false
-        dest: /home/vagrant/hello2.txt
-        mode: 0644
-      become: true
 
-    - name: Echo hello
+    - name: Ensure Python pip is installed
-      shell: echo 'hello ansible!'
+      package:
-      args:
+        name: python3-pip
-        chdir: $HOME
+        state: present
-    # Echo the contents of the hello.txt file
-    - name: Echo hello
-      shell: cat /home/vagrant/hello.txt
-      args:
-        chdir: $HOME
-    # Echo the contents of the hello2.txt file
-    - name: Echo hello2
-      shell: cat /home/vagrant/hello2.txt
-      args:
-        chdir: $HOME
 
+    - name: Ensure Docker SDK for Python is installed
+      pip:
+        name: docker>=5.0.0
+        executable: pip3
+        
+    - name: Init a new swarm with default parameters
+      community.docker.docker_swarm:
+        state: present
+    
+    - name: Debug all variables
+      debug:
+        msg: "swap_file_size_mb: {{ swap_file_size_mb }}, swap_file_state: {{ swap_file_state }}"
+    - name: Debug Docker variables
+      debug:
+        msg: "docker_edition: {{ docker_edition }}, docker_packages: {{ docker_packages }}"
+    # - name: Debug all host variables
+    #   debug:
+    #     var: hostvars[inventory_hostname]
 
     # - name: Initialize the cluster
     #   shell: docker swarm init --advertise-addr 192.168.56.10 >> cluster_initialized.txt

ansible/roles/common/tasks/main.yml

@@ -0,0 +1,7 @@
+- name: Check memory and swap usage 
+  command: free -m
+  register: memory_info
+  changed_when: false
+- name: Run the equivalent of "apt-get update" as a separate step
+  ansible.builtin.apt:
+    update_cache: yes

ansible/swarm-node.yml

@@ -0,0 +1,16 @@
+---
+- hosts: swarm_workers 
+  become: true
+
+  vars:
+  roles:
+    - role: geerlingguy.swap
+      swap_file_size_mb: 1024 
+    - role: geerlingguy.docker
+    - role: common
+
+  tasks:
+    - name: Check memory and swap usage
+      command: free -m
+      register: memory_info
+      changed_when: false

vagrant/Vagrantfile

@@ -1,56 +1,51 @@
+num_workers = 1
+
 nodes = [
-  { :hostname => 'ansible-manager', :ip => '192.168.56.9', :ram => 256, :cpus => 1 },
+  { hostname: 'swarm-master', ip: '192.168.56.10', ram: 256, cpus: 1, groups: ['swarm_master'] }
-  { :hostname => 'swarm-master-1', :ip => '192.168.56.10', :ram => 256, :cpus => 1 },
-  # { :hostname => 'swarm-master-2', :ip => '192.168.56.11', :ram => 256, :cpus => 1 },
-  # { :hostname => 'swarm-worker-1', :ip => '192.168.56.12', :ram => 256, :cpus => 1 },
-#   { :hostname => 'swarm-worker-2', :ip => '192.168.56.13', :ram => 1024, :cpus => 1 }
 ]
 
-Vagrant.configure("2") do |config|
+(1..num_workers).each do |i|
-    # config.ssh.insert_key = false
+  nodes << {
-    # config.ssh.forward_agent = true
+    hostname: "swarm-worker-#{i}",
-    config.vm.provision "ansible" do |ansible|
+    ip: "192.168.56.#{10 + i}",
-        ansible.playbook = "setup.yml"
+    ram: 256,
-        # ansible.inventory_path = "../ansible/inventory"
+    cpus: 1,
-        # ansible.verbose = true
+    groups: ['swarm_workers']
-        # ansible.limit = "all"
+  }
-        # # ansible.raw_arguments = ["--timeout=60"]
+end
-    end
+
-    nodes.each do |node|
+Vagrant.configure('2') do |config|
-        puts "Provisioning node: #{node[:hostname]}"
+  groups = {}
-        config.vm.define node[:hostname] do |node_config|
+  nodes.each do |node|
-            node_config.vm.hostname = node[:hostname]
+    node[:groups].each do |group|
-            node_config.vm.box = "debian/bullseye64"
+      groups[group] ||= []
-            # node_config.vm.box_version = "20250415.336224"
+      groups[group] << node[:hostname]
-
+    end
-            # node_config.ssh.private_key_path = "../keys/access"
+  end
-
+
-            # node_config.vm.provision "shell", inline: <<-SHELL
+  config.vm.provision 'ansible' do |ansible|
-            #   mkdir -p /home/vagrant/.ssh
+    ansible.playbook = 'setup.yml'
-            #   echo '$(cat ../keys/access.pub)' >> /home/vagrant/.ssh/authorized_keys
+    ansible.groups = groups
-            #   chown -R vagrant:vagrant /home/vagrant/.ssh
+
-            #   chmod 700 /home/vagrant/.ssh
+    # ansible.verbose = true
-            #   chmod 600 /home/vagrant/.ssh/authorized_keys
+    # ansible.limit = "all"
-            # SHELL
+    # ansible.raw_arguments = ["--timeout=60"]
-            # config.vm.provision "shell" do |s|
+  end
-            #   ssh_pub_key = File.readlines("../keys/access.pub").first.strip
+  
-            #   s.inline = <<-SHELL
+  nodes.each do |node|
-            #     echo #{ssh_pub_key} >> /home/vagrant/.ssh/authorized_keys
+    puts "Provisioning node: #{node[:hostname]}"
-            #     echo #{ssh_pub_key} >> /root/.ssh/authorized_keys
+    config.vm.define node[:hostname] do |node_config|
-            #   SHELL
+      node_config.vm.hostname = node[:hostname]
-            # end
+      node_config.vm.box = 'debian/bullseye64'
-            # node_config.vm.network "private_network", ip: node[:ip]
+      # node_config.vm.box = 'generic/archlinux64'
-            # node_config.vm.provider "virtualbox" do |vb|
+      # node_config.vm.box_version = "20250415.336224"
-            #     vb.name = node[:hostname]
+
-            #     vb.memory = node[:ram]
+      # node_config.vm.network "private_network", ip: node[:ip]
-            #     vb.cpus = node[:cpus]
+      node_config.vm.provider "virtualbox" do |vb|
-            # end
+          vb.name = node[:hostname]
-        end
+          vb.memory = node[:ram]
-    end
+          vb.cpus = node[:cpus]
-
+      end
-  # config.vm.define "ansible-manager" do |ansible|
+    end
-  #   ansible.vm.provision "file", source: "../ansible", destination: "$HOME"
+  end
-  #   ansible.vm.provision "shell", path: "ansible.sh"
-  #   ansible.vm.provision "shell", inline: "echo 'hello ansible!'"
-  # end
 end