From 32acffc7c6b4632bbd30af1c25deebc8ea18d719 Mon Sep 17 00:00:00 2001
From: Charles Butler <chuck@dasroot.net>
Date: Fri, 21 Apr 2017 15:31:27 -0500
Subject: [PATCH] Hostname patch for vsphere provider limitations with juju

This patch sets the hostname to a unique identifier (the juju unit name)
during pre-deployment of the charm. This may not be a FQDN resolveable
hostname but will prevent hostname collision.
---
 .../exec.d/vmware-patch/charm-pre-install       | 17 +++++++++++++++++
 .../exec.d/vmware-patch/charm-pre-install       | 17 +++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100755 cluster/juju/layers/kubernetes-master/exec.d/vmware-patch/charm-pre-install
 create mode 100755 cluster/juju/layers/kubernetes-worker/exec.d/vmware-patch/charm-pre-install

diff --git a/cluster/juju/layers/kubernetes-master/exec.d/vmware-patch/charm-pre-install b/cluster/juju/layers/kubernetes-master/exec.d/vmware-patch/charm-pre-install
new file mode 100755
index 00000000000..0f70f51cadf
--- /dev/null
+++ b/cluster/juju/layers/kubernetes-master/exec.d/vmware-patch/charm-pre-install
@@ -0,0 +1,17 @@
+#!/bin/bash
+MY_HOSTNAME=$(hostname)
+
+: ${JUJU_UNIT_NAME:=`uuidgen`}
+
+
+if [ "${MY_HOSTNAME}" == "ubuntuguest" ]; then
+    juju-log "Detected broken vsphere integration. Applying hostname override"
+
+    FRIENDLY_HOSTNAME=$(echo $JUJU_UNIT_NAME | tr / -)
+    juju-log "Setting hostname to $FRIENDLY_HOSTNAME"
+    if [ ! -f /etc/hostname.orig ]; then
+      mv /etc/hostname /etc/hostname.orig
+    fi
+    echo "${FRIENDLY_HOSTNAME}" > /etc/hostname
+    hostname $FRIENDLY_HOSTNAME
+fi
diff --git a/cluster/juju/layers/kubernetes-worker/exec.d/vmware-patch/charm-pre-install b/cluster/juju/layers/kubernetes-worker/exec.d/vmware-patch/charm-pre-install
new file mode 100755
index 00000000000..0f70f51cadf
--- /dev/null
+++ b/cluster/juju/layers/kubernetes-worker/exec.d/vmware-patch/charm-pre-install
@@ -0,0 +1,17 @@
+#!/bin/bash
+MY_HOSTNAME=$(hostname)
+
+: ${JUJU_UNIT_NAME:=`uuidgen`}
+
+
+if [ "${MY_HOSTNAME}" == "ubuntuguest" ]; then
+    juju-log "Detected broken vsphere integration. Applying hostname override"
+
+    FRIENDLY_HOSTNAME=$(echo $JUJU_UNIT_NAME | tr / -)
+    juju-log "Setting hostname to $FRIENDLY_HOSTNAME"
+    if [ ! -f /etc/hostname.orig ]; then
+      mv /etc/hostname /etc/hostname.orig
+    fi
+    echo "${FRIENDLY_HOSTNAME}" > /etc/hostname
+    hostname $FRIENDLY_HOSTNAME
+fi