Add Ansible template

roles/asterisk/handlers/main.yml

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+- name: Reload Asterisk
+  ansible.builtin.service:
+    name: asterisk
+    state: reloaded

roles/asterisk/tasks/main.yml

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+- name: Check if Asterisk is already installed
+  ansible.builtin.stat:
+    path: /usr/sbin/asterisk
+  register: asterisk_installed
+
+- name: Set external signaling address
+  ansible.builtin.set_fact:
+    external_signaling_address: "{{ hostvars[groups['asterisk'][0]].ansible_host }}"
+  when: external_signaling_address is not defined or external_signaling_address == ""
+
+- name: Install build dependencies for Asterisk
+  ansible.builtin.apt:
+    name:
+      - build-essential
+      - libasound2-dev
+      - libedit-dev
+      - libjansson-dev
+      - libncurses5-dev
+      - libsqlite3-dev
+      - libssl-dev
+      - libxml2-dev
+      - uuid-dev
+      - wget
+    state: present
+    update_cache: true
+
+- name: Create a directory for PJSIP source
+  ansible.builtin.file:
+    path: /usr/local/src/pjsip
+    state: directory
+    mode: '0755'
+  when: not asterisk_installed.stat.exists
+
+- name: Download PJSIP source
+  ansible.builtin.get_url:
+    url: https://github.com/pjsip/pjproject/archive/refs/tags/2.14.tar.gz
+    dest: /usr/local/src/pjsip/pjproject-2.14.tar.gz
+    mode: '0644'
+  when: not asterisk_installed.stat.exists
+
+- name: Extract PJSIP source
+  ansible.builtin.unarchive:
+    src: /usr/local/src/pjsip/pjproject-2.14.tar.gz
+    dest: /usr/local/src/pjsip/
+    remote_src: yes
+  when: not asterisk_installed.stat.exists
+
+- name: Build and install PJSIP
+  ansible.builtin.shell:
+    cmd: |
+      ./configure CFLAGS="-DNDEBUG -DPJ_HAS_IPV6=1" --prefix=/usr --libdir=/usr/lib
+      make -j$(nproc)
+      make install
+    chdir: /usr/local/src/pjsip/pjproject-2.14
+  args:
+    creates: /usr/lib/libpj.so
+  when: not asterisk_installed.stat.exists
+
+- name: Download Asterisk source
+  ansible.builtin.get_url:
+    url: "https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-{{ asterisk_version }}.tar.gz"
+    dest: "/usr/local/src/asterisk-{{ asterisk_version }}.tar.gz"
+    mode: '0644'
+  when: not asterisk_installed.stat.exists
+
+- name: Extract Asterisk source
+  ansible.builtin.unarchive:
+    src: "/usr/local/src/asterisk-{{ asterisk_version }}.tar.gz"
+    dest: /usr/local/src/
+    remote_src: true
+    creates: "/usr/local/src/asterisk-{{ asterisk_version }}"
+  when: not asterisk_installed.stat.exists
+
+- name: Configure Asterisk
+  ansible.builtin.command:
+    cmd: ./configure
+    chdir: "{{ asterisk_src_dir }}"
+  when: not asterisk_installed.stat.exists
+
+- name: Enable PJSIP modules
+  ansible.builtin.command:
+    cmd: make menuselect.makeopts
+    chdir: "{{ asterisk_src_dir }}"
+  when: not asterisk_installed.stat.exists
+
+- name: Compile Asterisk
+  ansible.builtin.command:
+    cmd: make
+    chdir: "{{ asterisk_src_dir }}"
+  when: not asterisk_installed.stat.exists
+
+- name: Install Asterisk
+  ansible.builtin.command:
+    cmd: make install
+    chdir: "{{ asterisk_src_dir }}"
+  when: not asterisk_installed.stat.exists
+
+- name: Verify that PJSIP modules are installed
+  ansible.builtin.stat:
+    path: /usr/lib/asterisk/modules/chan_pjsip.so
+  register: pjsip_module
+
+- name: Fail if PJSIP modules are missing
+  ansible.builtin.fail:
+    msg: "PJSIP module not found! Check if libpjsip-dev was installed before building."
+  when: not pjsip_module.stat.exists
+
+- name: Install Asterisk samples
+  ansible.builtin.command:
+    cmd: make samples
+    chdir: "{{ asterisk_src_dir }}"
+
+- name: Install Asterisk startup scripts
+  ansible.builtin.command:
+    cmd: make config
+    chdir: "{{ asterisk_src_dir }}"
+
+- name: Enable and start the Asterisk service
+  ansible.builtin.service:
+    name: asterisk
+    state: started
+    enabled: true
+
+- name: Deploy PJSIP configuration
+  ansible.builtin.template:
+    src: pjsip.conf.j2
+    dest: "{{ asterisk_config_dir }}/pjsip.conf"
+    owner: root
+    group: root
+    mode: '0644'
+  notify: Reload Asterisk
+
+- name: Deploy extensions configuration
+  ansible.builtin.template:
+    src: extensions.conf.j2
+    dest: "{{ asterisk_config_dir }}/extensions.conf"
+    owner: root
+    group: root
+    mode: '0644'
+  notify: Reload Asterisk

roles/asterisk/templates/extensions.conf.j2

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+[phones]
+{% for extension in extensions %}
+exten => {{ extension.number }},1,Dial(PJSIP/{{ extension.number }})
+exten => {{ extension.number }},n,Voicemail({{ extension.voicemail }})
+exten => {{ extension.number }},n,Hangup()
+exten => {{ extension.number }},hint,PJSIP/{{ extension.number }}
+{% endfor %}

roles/asterisk/templates/pjsip.conf.j2

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+[global]
+realm=asterisk
+external_signaling_port=5060
+
+[transport-udp]
+type=transport
+protocol=udp
+bind=0.0.0.0:5060
+
+{% for extension in extensions %}
+[{{ extension.number }}]
+type=endpoint
+transport=transport-udp
+context=phones
+disallow=all
+allow=ulaw,alaw
+aors={{ extension.number }}
+auth={{ extension.number }}-auth
+direct_media=no
+rtp_symmetric=yes
+force_rport=no
+rewrite_contact=no
+
+[{{ extension.number }}]
+type=aor
+max_contacts=1
+remove_existing=yes
+contact=sip:{{ extension.number }}@{{ extension.ipv4_address }}
+qualify_frequency=10
+
+[{{ extension.number }}-auth]
+type=auth
+auth_type=userpass
+username={{ extension.number }}
+password={{ extension.password }}
+
+[{{ extension.number }}-identify]
+type=identify
+endpoint={{ extension.number }}
+match={{ extension.ipv4_address }}
+
+{% endfor %}