add ansible role journal-postfix (a log parser for Postfix) with playbook and doc

journal-postfix/tasks/main.yml

@@ -0,0 +1,90 @@
+- name: user journal-postfix
+  user:
+    name: journal-postfix
+    group: systemd-journal
+    state: present
+    system: yes
+    uid: 420
+    create_home: no
+    home: /srv/journal-postfix
+    password: '!'
+    password_lock: yes
+    comment: created by ansible role journal-postfix
+
+- name: directories /srv/journal-postfix, /etc/journal-postfix
+  file:
+    path: "{{ item }}"
+    state: directory
+    owner: journal-postfix
+    group: systemd-journal
+    mode: 0755
+  loop:
+    - /srv/journal-postfix
+    - /etc/journal-postfix
+
+- name: install dependencies
+  apt:
+    name: python3-psycopg2,python3-systemd,python3-yaml
+    state: present
+    update_cache: yes
+    install_recommends: no
+
+- name: files in /srv/journal-postfix
+  copy:
+    src: "srv/{{ item }}"
+    dest: "/srv/journal-postfix/{{ item }}"
+    owner: journal-postfix
+    group: systemd-journal
+    mode: 0644
+    force: yes
+  loop:
+    - run.py
+    - settings.py
+    - sources.py
+    - parser.py
+    - storage.py
+    - storage_setup.py
+    - README.md
+    - setup.cfg
+
+- name: make some files executable
+  file:
+    path: "{{ item }}"
+    mode: 0755
+  loop:
+    - /srv/journal-postfix/run.py
+    - /srv/journal-postfix/settings.py
+
+- name: determine whether to startup
+  set_fact:
+    startup: "{{ mailserver.postgresql.host is defined and mailserver.postgresql.port is defined and mailserver.postgresql.dbname is defined and mailserver.postgresql.username is defined and mailserver.postgresql.password is defined }}"
+
+- name: file /etc/journal-postfix/main.yml
+  template:
+    src: main.yml
+    dest: /etc/journal-postfix/main.yml
+    owner: journal-postfix
+    group: systemd-journal
+    mode: 0600
+    force: no
+
+- name: file journal-postfix.service
+  copy:
+    src: journal-postfix.service
+    dest: /etc/systemd/system/journal-postfix.service
+    owner: root
+    group: root
+    mode: 0644
+    force: yes
+
+- name: enable systemd unit journal-postfix.service
+  systemd:
+    enabled: yes
+    daemon_reload: yes
+    name: journal-postfix.service
+
+- name: restart systemd unit journal-postfix.service
+  systemd:
+    state: restarted
+    name: journal-postfix.service
+  when: startup