Init

handlers/main.yml

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+---
+- name: reload systemd
+  systemd:
+    daemon_reload: yes

tasks/main.yml

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+---
+- name: Ensure sendmail is present
+  get_url:
+    url: "https://git.abbiamoundominio.org/blallo/sendmail/releases/download/{{ sendmail.version }}/sendmail"
+    dest: /usr/local/bin/sendmail
+    owner: root
+    group: root
+    mode: 0755
+
+- name: Ensure sendmail template is present
+  template:
+    src: templates/sendmail.toml.j2
+    dest: /etc/sendmail.toml
+    owner: root
+    group: root
+    mode: 0644
+  vars:
+    - sections: "{{ sendmail.configuration }}"
+
+- name: Ensure notify_unit_failure.sh is present
+  template:
+    src: templates/notify_unit_failure.sh
+    dest: /usr/local/bin/notify_unit_failure.sh
+    owner: root
+    group: root
+    mode: 0755
+
+- name: Ensure notify-failure@.service is present
+  template:
+    src: templates/notify-failure@.service.j2
+    dest: /etc/systemd/system/notify-failure@.service
+    owner: root
+    group: root
+    mode: 0644
+  notify: reload systemd

templates/notify-failure@.service.j2

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+[Unit]
+Description=notify failure of %i unit via mail
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/notify_unit_failure.sh %i
+
+
+# vim: set ft=dosini:

templates/notify_unit_failure.sh

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+#!/usr/bin/env bash
+
+INVOCATION_ID=$(systemctl show -p InvocationID --value ${1}.service)
+
+cat << EOM | sendmail \
+    -section unit_failure \
+    -sub "[UNIT-FAILURE|$(hostname)] ${1}"
+The unit ${1}.service just failed
+Date: $(date)
+
+---
+$(journalctl _SYSTEMD_INVOCATION_ID=${INVOCATION_ID})
+
+
+
+EOM

templates/sendmail.toml.j2

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+{% for section in sections %}
+[{{ section.name }}]
+{% if section.from is defined %}
+  from = "{{ section.from }}"
+{% endif %}
+{% if section.to_list is defined %}
+  to = {{ section.to_list }}
+{% endif %}
+  [{{ section.name }}.server]
+    address = "{{ section.server.address }}"
+    port = {{ section.server.port }}
+    user = "{{ section.server.user }}"
+    password = "{{ section.server.password }}"
+
+{% endfor %}
+
+# vim: set ft=toml et sw=0 ts=2 sts=0: