Updated docs for s390x for latest version

Signed-off-by: Anuja Jakhade <anujajakhade@gmail.com>

engine/install/rhel.md

@@ -152,6 +152,7 @@ $ sudo yum-config-manager \
     $ yum list docker-ce --showduplicates | sort -r
 
     docker-ce.s390x                3:20.10.7-3.el8                 docker-ce-stable
+    docker-ce.s390x                3:20.10.8-3.el8                 docker-ce-stable
     ```
 
     The list returned depends on which repositories are enabled, and is specific

engine/install/sles.md

@@ -34,18 +34,21 @@ To get started with Docker Engine on SLES, make sure you
 
 ### OS requirements
 
-To install Docker Engine, you need a maintained version of SLES 15-SP2 on s390x (IBM Z).
+To install Docker Engine, you need a maintained version of SLES 15-SP2 or SLES 15-SP3 on s390x (IBM Z).
 Archived versions aren't supported or tested.
 
 The [`SCC SUSE`](https://scc.suse.com/packages?name=SUSE%20Linux%20Enterprise%20Server&version=15.2&arch=s390x)
 repositories must be enabled. 
 
-The `SELinux (SLE_15_SP2)`repository must be enabled. This repository is not added by
+The `SELinux` repository must be enabled. This repository is not added by
 default, you need to
-[add it](https://download.opensuse.org/repositories/security:SELinux/SLE_15_SP2/security:SELinux.repo).
+[add it](https://download.opensuse.org/repositories/security).
 
 ```console
-$ zypper addrepo https://download.opensuse.org/repositories/security:SELinux/SLE_15_SP2/security:SELinux.repo
+$ sudo zypper install -y lsb-release
+$ sles_version=$(lsb_release -r | rev | cut -c1)
+$ opensuse_repo="https://download.opensuse.org/repositories/security:SELinux/SLE_15_SP$sles_version/security:SELinux.repo"
+$ sudo zypper addrepo $opensuse_repo 
 ```
 
 The `overlay2` storage driver is recommended.
@@ -159,16 +162,16 @@ $ sudo zypper \
        results by version number, highest to lowest, and is truncated:
 
     ```console
-    $ sudo zypper se docker-ce --match-exact  | sort -r
+    $ sudo zypper search -s --match-exact docker-ce | sort -r
+    
+      v  | docker-ce | package | 3:20.10.7-3 | s390x | Docker CE Stable - s390x
+      v  | docker-ce | package | 3:20.10.8-3 | s390x | Docker CE Stable - s390x
     ```
 
     The list returned depends on which repositories are enabled, and is specific
     to your version of SLES.
 
-    b. Install a specific version by its fully qualified package name, which is
+    b. Install a specific version using the version string from the fourth column, For example, `docker-ce-3:20.10.7`.
-       the package name (`docker-ce`) plus the version string (2nd column)
-       starting at the first colon (`:`), up to the first hyphen, separated by
-       a hyphen (`-`). For example, `docker-ce-18.09.1`.
 
     ```console
     $ sudo zypper install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io

engine/security/rootless.md

@@ -54,7 +54,7 @@ testuser:231072:65536
   <li class="active"><a data-toggle="tab" data-target="#hint-ubuntu">Ubuntu</a></li>
   <li><a data-toggle="tab" data-target="#hint-debian">Debian GNU/Linux</a></li>
   <li><a data-toggle="tab" data-target="#hint-arch">Arch Linux</a></li>
-  <li><a data-toggle="tab" data-target="#hint-opensuse">openSUSE</a></li>
+  <li><a data-toggle="tab" data-target="#hint-opensuse-sles">openSUSE and SLES</a></li>
   <li><a data-toggle="tab" data-target="#hint-centos8-rhel8-fedora">CentOS 8, RHEL 8 and Fedora</a></li>
   <li><a data-toggle="tab" data-target="#hint-centos7-rhel7">CentOS 7 and RHEL 7</a></li>
 </ul>
@@ -66,7 +66,7 @@ testuser:231072:65536
 - `overlay2` storage driver  is enabled by default
   ([Ubuntu-specific kernel patch](https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/overlayfs?id=3b7da90f28fe1ed4b79ef2d994c81efbc58f1144)).
 
-- Known to work on Ubuntu 16.04, 18.04, and 20.04.
+- Known to work on Ubuntu 18.04, 20.04, 20.10 and 21.04.
 </div>
 <div id="hint-debian" class="tab-pane fade in" markdown="1">
 - Add `kernel.unprivileged_userns_clone=1` to `/etc/sysctl.conf` (or
@@ -92,13 +92,13 @@ testuser:231072:65536
 - Add `kernel.unprivileged_userns_clone=1` to `/etc/sysctl.conf` (or
   `/etc/sysctl.d`) and run `sudo sysctl --system`
 </div>
-<div id="hint-opensuse" class="tab-pane fade in" markdown="1">
+<div id="hint-opensuse-sles" class="tab-pane fade in" markdown="1">
 - Installing `fuse-overlayfs` is recommended. Run `sudo zypper install -y fuse-overlayfs`.
 
 - `sudo modprobe ip_tables iptable_mangle iptable_nat iptable_filter` is required.
   This might be required on other distros as well depending on the configuration.
 
-- Known to work on openSUSE 15.
+- Known to work on openSUSE 15 and SLES 15.
 </div>
 <div id="hint-centos8-rhel8-fedora" class="tab-pane fade in" markdown="1">
 - Installing `fuse-overlayfs` is recommended. Run `sudo dnf install -y fuse-overlayfs`.
@@ -109,7 +109,7 @@ testuser:231072:65536
   A workaround for this is to `sudo dnf install -y policycoreutils-python-utils && sudo semanage permissive -a iptables_t`.
   This issue is tracked in [moby/moby#41230](https://github.com/moby/moby/issues/41230).
 
-- Known to work on CentOS 8 and Fedora 33.
+- Known to work on CentOS 8, RHEL 8, and Fedora 33.
 </div>
 <div id="hint-centos7-rhel7" class="tab-pane fade in" markdown="1">
 - Add `user.max_user_namespaces=28633` to `/etc/sysctl.conf` (or 

storage/storagedriver/btrfs-driver.md

@@ -18,7 +18,7 @@ easily combine multiple physical block devices into a single Btrfs filesystem.
 This article refers to Docker's Btrfs storage driver as `btrfs` and the overall
 Btrfs Filesystem as Btrfs.
 
-> **Note**: The `btrfs` storage driver is only supported on Docker Engine - Community on Ubuntu or Debian.
+> **Note**: The `btrfs` storage driver is only supported on Docker Engine - Community on SLES, Ubuntu or Debian.
 
 ## Prerequisites