From ffc8972abc2c0e32eebbd8d748b9b6b4459ecd8c Mon Sep 17 00:00:00 2001
From: "Dustin C. Hatch" <dustin@hatch.name>
Date: Sun, 15 Apr 2018 13:45:38 -0500
Subject: [PATCH] remount: PB to remount read-only filesystems

Many hosts have a read-only root filesystem, as well as some other
read-only paths that need to be remounted before configuration changes
can be made. The `remount.yml` playbook can be used to remount select
filesystems as either read-write or read-only (the default). It is
intended to be used before and after other playbooks, to ensure the
filesystems are in the correct state.
---
 remount.yml | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 remount.yml

diff --git a/remount.yml b/remount.yml
new file mode 100644
index 0000000..74d3539
--- /dev/null
+++ b/remount.yml
@@ -0,0 +1,20 @@
+- hosts: all
+  gather_facts: true
+  vars:
+    remount_state: ro
+    remount_fs:
+    - /
+    - /usr
+    - /opt
+  tasks:
+  - name: remount filesystems
+    command:
+      mount -oremount,{{ remount_state }} {{ item }}
+      warn=false
+    with_items: >-
+      {{
+      ansible_mounts
+         | selectattr('mount', 'in', remount_fs)
+         | map(attribute='mount')
+         | list
+      }}