fuel_node.yml

---
- name: Setup or Remove Fuel Node
  hosts: localhost
  become: true
  vars_prompt:
    - name: node_action
      prompt: "Enter the action to perform (install, remove)"
      private: no
    - name: service_name
      prompt: "Enter the service name for the Fuel node"
      private: no
    - name: eth_rpc_endpoint
      prompt: "Enter your Alchemy Ethereum RPC endpoint (Sepolia)"
      private: no

  vars:
    p2p_secret_path: "/root/fuel/p2p_secret"
    home_fuel: "/root/fuel"
    chain_config_path: "/root/fuel/chainConfig.json"
    db_path: "/root/fuel/.fuel_beta5"
    fuel_bin_path: "/root/.fuelup/bin"

  tasks:
    - block:
        - name: Install Rust and Cargo
          shell: |
            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
            source $HOME/.cargo/env
          args:
            executable: /bin/bash

        - name: Ensure expect is installed
          apt:
            name: expect
            state: present

        - name: Ensure jq is installed
          apt:
            name: jq
            state: present    
  
        - name: Remove existing .fuelup directory
          file:
            path: "/root/.fuelup"
            state: absent
 
        - name: Install Fuel toolchain without interactive prompt
          shell: |
             curl https://install.fuel.network | sh -s -- --no-modify-path
          args:
             executable: /bin/bash

        - name: Add Fuel toolchain to PATH permanently
          lineinfile:
            path: /root/.profile
            line: 'export PATH=$PATH:{{ fuel_bin_path }}'
            create: yes

        - name: Create DB directory
          file:
            path: "{{ home_fuel }}"
            state: directory
            mode: '0755'

        - name: Generate P2P secret key
          shell: export PATH=$PATH:{{ fuel_bin_path }} && fuel-core-keygen new --key-type peering > {{ p2p_secret_path }}
          args:
            creates: "{{ p2p_secret_path }}"
            executable: /bin/bash

        - name: Read P2P secret key
          shell: cat {{ p2p_secret_path }} | jq -r '.secret'
          register: p2p_secret
          changed_when: false
          when: node_action == "install"
    
        - name: Create DB directory
          file:
            path: "{{ db_path }}"
            state: directory
            mode: '0755'

        - name: Setup chainConfig.json using Jinja2 template
          template:
            src: templates/chainConfig.json.j2
            dest: "{{ chain_config_path }}"

        - name: Create Fuel node service
          template:
            src: templates/fuel-node.service.j2
            dest: /etc/systemd/system/fuel-node.service

        - name: Reload systemd, enable and start Fuel node service
          systemd:
            daemon_reload: yes
            name: fuel-node
            enabled: yes
            state: stopped
      when: node_action == "install"

    - block:
        - name: Stop and disable Fuel node service
          systemd:
            name: fuel-node
            state: stopped
            enabled: no
           

        - name: Remove Fuel node service file
          file:
            path: /etc/systemd/system/fuel-node.service
            state: absent

        - name: Remove chain configuration and data directories
          file:
            path: "{{ item }}"
            state: absent
          loop:
            - "{{ db_path }}"
            - "{{ chain_config_path }}"
            - "{{ p2p_secret_path }}"
      ignore_errors: true
      when: node_action == "remove"