4 files changed, 10 insertions, 7 deletions
diff --git a/doc/rtd/topics/availability.rst b/doc/rtd/topics/availability.rst
index 84490460..8f56a7d2 100644
--- a/doc/rtd/topics/availability.rst
+++ b/doc/rtd/topics/availability.rst
@@ -17,16 +17,17 @@ Distributions
 Cloud-init has support across all major Linux distributions, FreeBSD, NetBSD
 and OpenBSD:
 
-- Ubuntu
-- SLES/openSUSE
-- RHEL/CentOS
-- Fedora
-- Gentoo Linux
-- Debian
+- Alpine Linux
 - ArchLinux
+- Debian
+- Fedora
 - FreeBSD
+- Gentoo Linux
 - NetBSD
 - OpenBSD
+- RHEL/CentOS
+- SLES/openSUSE
+- Ubuntu
 
 Clouds
 ======
diff --git a/doc/rtd/topics/instancedata.rst b/doc/rtd/topics/instancedata.rst
index 845098bb..255245a4 100644
--- a/doc/rtd/topics/instancedata.rst
+++ b/doc/rtd/topics/instancedata.rst
@@ -132,6 +132,7 @@ This shall be the distro name, version and release as determined by
 
 Example output:
 
+- alpine, 3.12.0, ''
 - centos, 7.5, core
 - debian, 9, stretch
 - freebsd, 12.0-release-p10,
diff --git a/doc/rtd/topics/modules.rst b/doc/rtd/topics/modules.rst
index 9c9be804..e30fe0fe 100644
--- a/doc/rtd/topics/modules.rst
+++ b/doc/rtd/topics/modules.rst
@@ -6,6 +6,7 @@ Modules
 *******
 .. contents:: Table of Contents
 
+.. automodule:: cloudinit.config.cc_apk_configure
 .. automodule:: cloudinit.config.cc_apt_configure
 .. automodule:: cloudinit.config.cc_apt_pipelining
 .. automodule:: cloudinit.config.cc_bootcmd
diff --git a/doc/rtd/topics/network-config.rst b/doc/rtd/topics/network-config.rst
index 8eeadebf..08db04d8 100644
--- a/doc/rtd/topics/network-config.rst
+++ b/doc/rtd/topics/network-config.rst
@@ -165,7 +165,7 @@ supported formats.  The following ``renderers`` are supported in cloud-init:
 - **ENI**
 
 /etc/network/interfaces or ``ENI`` is supported by the ``ifupdown`` package
-found in Ubuntu and Debian.
+found in Alpine Linux, Debian and Ubuntu.
 
 - **Netplan**