roles/baseconfig/files/update-motd.d/10-uname

@@ -1,3 +0,0 @@
-#!/bin/sh
-# {{ ansible_managed }}
-uname -snrvm

roles/baseconfig/tasks/main.yml

@@ -32,15 +32,8 @@
   retries: 3
   until: apt_result is succeeded
 
-# Pimp my server
-- name: Customize motd
-  copy:
-    src: "update-motd.d/{{ item }}"
-    dest: "/etc/update-motd.d/{{ item }}"
-    mode: 0755
-  loop:
-    - 00-logo
-    - 10-uname
+- include_role:
+    name: update_motd
 
 - name: Remove Debian warranty motd
   file:

roles/prometheus/tasks/main.yml

@@ -84,8 +84,11 @@
     enabled: true
     state: started
 
-- name: Indicate role in motd
-  template:
-    src: update-motd.d/05-service.j2
-    dest: /etc/update-motd.d/05-prometheus
-    mode: 0755
+- include_role:
+    name: update_motd
+  vars:
+    motd_messages:
+      - key: 05-prometheus
+        message: >-
+          Prometheus est déployé sur cette machine (voir /etc/prometheus)
+...

roles/prometheus/templates/update-motd.d/05-service.j2

@@ -1,4 +0,0 @@
-#!/bin/sh
-# {{ ansible_managed }}
-echo "> prometheus a été déployé sur cette machine."
-echo "  Voir /etc/prometheus/"

roles/prometheus_federate/tasks/main.yml

@@ -38,9 +38,12 @@
     enabled: true
     state: started
 
-- name: Indicate role in motd
-  template:
-    src: update-motd.d/05-service.j2
-    dest: /etc/update-motd.d/05-prometheus
-    mode: 0755
+- include_role:
+    name: update_motd
+  vars:
+    motd_messages:
+      - key: 05-prometheus-federate
+        message: >-
+          Prometheus (en configuration fédération) est déployé sur cette
+          machine (voir /etc/prometheus)
 ...

roles/prometheus_federate/templates/update-motd.d/05-service.j2

@@ -1,4 +0,0 @@
-#!/bin/sh
-# {{ ansible_managed }}
-echo "> prometheus a été déployé sur cette machine."
-echo "  Voir /etc/prometheus/"

roles/update_motd/handlers/main.yml

@@ -0,0 +1,10 @@
+---
+- name: Remove cached motd
+  become: true
+  file:
+    path: "{{ item }}" 
+    state: absent
+  loop:
+    - /var/run/motd.dynamic
+    - /var/run/motd.dynamic.new
+...

roles/update_motd/tasks/main.yml

@@ -0,0 +1,53 @@
+---
+- name: Ensure update-motd.d exists
+  become: true
+  file:
+    path: /etc/update-motd.d
+    state: directory
+    mode: u=rwx,g=rx,o=rx
+    owner: root
+    group: root
+
+- name: Customize motd
+  become: true
+  template:
+    src: "{{ item }}"
+    dest: "/etc/update-motd.d/{{ item }}"
+    mode: u=rwx,g=rx,o=rx
+    owner: root
+    group: root
+  loop:
+    - 00-logo
+    - 10-messages
+    - 20-uname
+  notify: Remove cached motd
+
+- name: Remove Debian warranty motd
+  become: true
+  file:
+    path: /etc/motd
+    state: absent
+  notify: Remove cached motd
+
+- name: Ensure motd-messages exists
+  become: true
+  file:
+    path: /etc/motd-messages
+    state: directory
+    mode: u=rwx,g=rx,o=rx
+    owner: root
+    group: root
+  notify: Remove cached motd
+
+- name: Install additional motd messages
+  become: true
+  copy:
+    content: "✨ {{ item.message }}\n"
+    dest: "/etc/motd-messages/{{ item.key }}"
+    mode: u=rwx,g=rx,o=rx
+    owner: root
+    group: root
+  loop: "{{ motd_messages }}"
+  notify: Remove cached motd
+  when: motd_messages is defined
+...

roles/update_motd/templates/00-logo

@@ -1,23 +1,23 @@
 #!/bin/sh
-# {{ ansible_managed }}
+{{ ansible_managed | comment }}
 
 # Pretty uptime
 upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
-mins=$((${upSeconds}/60%60))
-hours=$((${upSeconds}/3600%24))
-days=$((${upSeconds}/86400))
-UPTIME=`printf "%d jours, %02dh%02dm" "$days" "$hours" "$mins"`
+mins="$((upSeconds / 60 % 60))"
+hours="$((upSeconds / 3600 % 24))"
+days="$((upSeconds / 86400))"
+UPTIME="$(printf "%d jours, %02dh%02dm" "$days" "$hours" "$mins")"
 
 # RAM
-RAM=`free -m | awk 'NR==2{printf "%s/%sMB (%.2f%%)\n", $3,$2,$3*100/$2 }'`
-DISK=`df -h | awk '$NF=="/"{printf "%d/%dGB (%s)\n", $3,$2,$5}'`
+RAM="$(free -m | awk 'NR==2{printf "%s/%sMB (%.2f%%)\n", $3,$2,$3*100/$2}')"
+DISK="$(df -h | awk '$NF=="/"{printf "%d/%dGB (%s)\n", $3,$2,$5}')"
 
 # Text font
-bold=$(tput bold)
-normal=$(tput sgr0)
+bold="$(tput bold)"
+normal="$(tput sgr0)"
 
 # Logo
-cat << EOF
+cat <<EOF
 
                                             ${bold}Uptime${normal} : ${UPTIME}
                                             ${bold}Mémoire${normal} : ${RAM}

roles/update_motd/templates/10-messages

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -euf
+
+find /etc/motd-messages -type f -exec cat -- {} +

roles/update_motd/templates/20-uname

@@ -0,0 +1,4 @@
+#!/bin/sh
+{{ ansible_managed | comment }}
+
+uname -snrvm