Add rsyslog_collector role

roles/rsyslog_collector/defaults/main.yml

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+---
+rsyslog_inputs: []
+rsyslog_collector_base_dir: /var/log/remote
+...

roles/rsyslog_collector/meta/main.yml

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+---
+dependencies:
+  - role: rsyslog_common
+...

roles/rsyslog_collector/tasks/main.yml

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+---
+- name: Install rsyslog-relp if needed
+  become: true
+  apt:
+    name: rsyslog-relp
+    state: latest
+  when: "rsyslog_inputs | selectattr('proto', 'eq', 'relp') | list"
+
+- name: Ensure log storage directory exists
+  become: true
+  file:
+    path: "{{ rsyslog_collector_base_dir }}"
+    state: directory
+
+- name: Deploy rsyslog input configuration file
+  become: true
+  template:
+    src: 10-collector.conf.j2
+    dest: /etc/rsyslog.d/10-collector.conf
+    owner: root
+    group: root
+    mode: u=rw,g=r,o=r
+  notify: Restart rsyslog
+...

roles/rsyslog_collector/templates/10-collector.conf.j2

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+{{ ansible_managed | comment }}
+
+module(load="mmrm1stspace")
+
+{%
+    set input_modules = {
+        "relp": "imrelp",
+        "udp": "imudp",
+    }
+%}
+
+{%
+    for module in rsyslog_inputs
+        | map(attribute="proto")
+        | map("extract", input_modules)
+        | list
+        | unique
+%}
+module(load="{{ module }}")
+{% endfor %}
+
+template(name="incomingFilename" type="list") {
+    constant(value="{{ rsyslog_collector_base_dir }}/")
+    property(name="fromhost-ip")
+    constant(value="/")
+    property(name="timegenerated" dateFormat="year")
+    constant(value="-")
+    property(name="timegenerated" dateFormat="month")
+    constant(value="-")
+    property(name="timegenerated" dateFormat="day")
+    constant(value=".log")
+}
+
+ruleset(name="handleIncomingLogs") {
+    action(type="mmrm1stspace")
+    action(
+        type="omfile"
+        dynaFile="incomingFilename"
+        template="RSYSLOG_FileFormat"
+    )
+}
+
+# TODO: add protocol-specific options (eg. TLS)
+{% for input in rsyslog_inputs %}
+input(
+    type="{{ input_modules[input.proto] }}"
+{% if "address" in input %}
+    address="{{ input.address }}"
+{% endif %}
+    port="{{ input.port }}"
+    ruleset="handleIncomingLogs"
+)
+{% endfor %}