From f9fcaac44205fa0cee160d578fc72893ea6f1315 Mon Sep 17 00:00:00 2001
From: Misty Stanley-Jones <misty@apache.org>
Date: Mon, 6 Nov 2017 14:30:51 -0800
Subject: [PATCH] Add info about selinux limitations for IBM Z (#5222)

* Add info about selinux limitations for IBM Z

* Fix liquid error
---
 engine/installation/linux/docker-ee/rhel.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/engine/installation/linux/docker-ee/rhel.md b/engine/installation/linux/docker-ee/rhel.md
index 79429c1d3e..698eea1007 100644
--- a/engine/installation/linux/docker-ee/rhel.md
+++ b/engine/installation/linux/docker-ee/rhel.md
@@ -34,6 +34,16 @@ In addition, you must use the `devicemapper` storage driver. On production
 systems, you must use `direct-lvm` mode, which requires one or more dedicated
 block devices. Fast storage such as solid-state media (SSD) is recommended.
 
+{% capture selinux-warning %}
+> **Warning**: There is currently no support for `selinux` on IBM Z systems. If
+> you try to install Docker EE on an IBM Z system with `selinux` enabled, you get
+> an error about the `container-selinux` package, which is missing from Red Hat's
+> repository for IBM Z. The only current workaround is to disable `selinux`
+> before installing or upgrading Docker on IBM Z.
+{:.warning}
+{% endcapture %}
+{{ selinux-warning }}
+
 ### Uninstall old versions
 
 Older versions of Docker were called `docker` or `docker-engine`. If these are
@@ -68,6 +78,8 @@ from the repository.
 
 #### Install Docker EE
 
+{{ selinux-warning }}
+
 {% include ee-linux-install-reuse.md section="install-using-yum-repo" %}
 
 #### Upgrade Docker EE
@@ -76,6 +88,8 @@ from the repository.
 
 ### Install from a package
 
+{{ selinux-warning }}
+
 {% include ee-linux-install-reuse.md section="install-using-yum-package" %}
 
 #### Upgrade Docker EE