personal_infra/ansible/roles/bitcoin_knots/tasks/install.yml

---
- name: Calculate dbcache as a share of system RAM
  set_fact:
    bitcoin_dbcache_mb: "{{ (ansible_memtotal_mb | float * 0.9) | int }}"
  when: bitcoin_dbcache_mb_override | string | length == 0

- name: Use the explicit dbcache override
  set_fact:
    bitcoin_dbcache_mb: "{{ bitcoin_dbcache_mb_override }}"
  when: bitcoin_dbcache_mb_override | string | length > 0
  changed_when: false

- name: Display calculated dbcache value
  debug:
    msg: "Setting dbcache to {{ bitcoin_dbcache_mb }} MB (90% of {{ ansible_memtotal_mb }} MB total RAM)"


- name: Install build dependencies
  apt:
    name:
      - build-essential
      - libtool
      - autotools-dev
      - automake
      - pkg-config
      - bsdmainutils
      - python3
      - python3-pip
      - libevent-dev
      - libboost-system-dev
      - libboost-filesystem-dev
      - libboost-test-dev
      - libboost-thread-dev
      - libboost-chrono-dev
      - libboost-program-options-dev
      - libboost-dev
      - libssl-dev
      - libdb-dev
      - libminiupnpc-dev
      - libzmq3-dev
      - libnatpmp-dev
      - libsqlite3-dev
      - git
      - curl
      - wget
      - cmake
    state: present
    update_cache: yes

- name: Create bitcoin group
  group:
    name: "{{ bitcoin_group }}"
    system: yes
    state: present

- name: Create bitcoin user
  user:
    name: "{{ bitcoin_user }}"
    group: "{{ bitcoin_group }}"
    system: yes
    shell: /usr/sbin/nologin
    home: "{{ bitcoin_data_dir }}"
    create_home: yes
    state: present

- name: Create bitcoin-knots directory
  file:
    path: "{{ bitcoin_knots_dir }}"
    state: directory
    owner: root
    group: root
    mode: '0755'

- name: Create bitcoin-knots source directory
  file:
    path: "{{ bitcoin_knots_source_dir }}"
    state: directory
    owner: root
    group: root
    mode: '0755'

- name: Create bitcoin data directory (for config, logs, wallets)
  file:
    path: "{{ bitcoin_data_dir }}"
    state: directory
    owner: "{{ bitcoin_user }}"
    group: "{{ bitcoin_group }}"
    mode: '0750'

- name: Create bitcoin large data directory (for blockchain)
  file:
    path: "{{ bitcoin_large_data_dir }}"
    state: directory
    owner: "{{ bitcoin_user }}"
    group: "{{ bitcoin_group }}"
    mode: '0750'

- name: Create bitcoin config directory
  file:
    path: "{{ bitcoin_conf_dir }}"
    state: directory
    owner: root
    group: root
    mode: '0755'