From 7e92fdfab7079993b0c2db41cfee60a0c5926998 Mon Sep 17 00:00:00 2001
From: Jeltz <tom.barthe+aurore@ens-paris-saclay.fr>
Date: Sat, 6 Mar 2021 04:30:32 +0100
Subject: [PATCH] Create an 'update_motd' role

---
 roles/update_motd/handlers/main.yml     | 10 ++++++
 roles/update_motd/tasks/main.yml        | 44 +++++++++++++++++++++++++
 roles/update_motd/templates/00-logo     | 39 ++++++++++++++++++++++
 roles/update_motd/templates/10-messages |  4 +++
 roles/update_motd/templates/20-uname    |  4 +++
 5 files changed, 101 insertions(+)
 create mode 100644 roles/update_motd/handlers/main.yml
 create mode 100644 roles/update_motd/tasks/main.yml
 create mode 100644 roles/update_motd/templates/00-logo
 create mode 100644 roles/update_motd/templates/10-messages
 create mode 100644 roles/update_motd/templates/20-uname

diff --git a/roles/update_motd/handlers/main.yml b/roles/update_motd/handlers/main.yml
new file mode 100644
index 0000000..41dcc84
--- /dev/null
+++ b/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
+...
diff --git a/roles/update_motd/tasks/main.yml b/roles/update_motd/tasks/main.yml
new file mode 100644
index 0000000..ce90dfa
--- /dev/null
+++ b/roles/update_motd/tasks/main.yml
@@ -0,0 +1,44 @@
+---
+- 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 additionnal 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
+...
diff --git a/roles/update_motd/templates/00-logo b/roles/update_motd/templates/00-logo
new file mode 100644
index 0000000..4456160
--- /dev/null
+++ b/roles/update_motd/templates/00-logo
@@ -0,0 +1,39 @@
+#!/bin/sh
+{{ 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")"
+
+# 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,$5}')"
+
+# Text font
+bold="$(tput bold)"
+normal="$(tput sgr0)"
+
+# Logo
+cat <<EOF
+
+                                            ${bold}Uptime${normal} : ${UPTIME}
+                                            ${bold}Mémoire${normal} : ${RAM}
+                                            ${bold}Disque racine${normal} : ${DISK}
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                                         
+                   ${bold}Aurore${normal}                
+
+EOF
diff --git a/roles/update_motd/templates/10-messages b/roles/update_motd/templates/10-messages
new file mode 100644
index 0000000..70e4625
--- /dev/null
+++ b/roles/update_motd/templates/10-messages
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -euf
+
+find /etc/motd-messages -type f -exec cat -- {} +
diff --git a/roles/update_motd/templates/20-uname b/roles/update_motd/templates/20-uname
new file mode 100644
index 0000000..d75d6b3
--- /dev/null
+++ b/roles/update_motd/templates/20-uname
@@ -0,0 +1,4 @@
+#!/bin/sh
+{{ ansible_managed | comment }}
+
+uname -snrvm