From 2549a41eb3b14f9f90877be9c2af1e87d8a8ea32 Mon Sep 17 00:00:00 2001
From: Johannes Zellner <johannes@nebulon.de>
Date: Wed, 6 Jan 2016 16:51:58 +0100
Subject: [PATCH] Add a valid hostname entry in /etc/hosts if not found

Using 127.0.1.1 as per http://www.debian.org/doc/manuals/debian-reference/ch05.en.html#_the_hostname_resolution
---
 installer.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/installer.sh b/installer.sh
index 5d364930e..b001e44ab 100755
--- a/installer.sh
+++ b/installer.sh
@@ -29,6 +29,23 @@ readonly installer_code_file="/root/installer.tar"
 readonly installer_tmp_dir="/tmp/installer"
 readonly cert_folder="/tmp/certificates"
 
+# check for fqdn in /ets/hosts
+echo "[INFO] checking for hostname entry"
+readonly hostentry_found=$(grep "${fqdn}" /etc/hosts || true)
+if [[ -z $hostentry_found ]]; then
+    echo "[WARNING] No entry for ${fqdn} found in /etc/hosts"
+    echo "Adding an entry ..."
+
+    cat >> /etc/hosts <<EOF
+
+# The following line was added by the Cloudron installer script
+127.0.1.1 ${fqdn} ${fqdn}
+EOF
+else
+    echo "Valid hostname entry found in /etc/hosts"
+fi
+echo ""
+
 echo "[INFO] ensure minimal dependencies ..."
 apt-get update
 apt-get install -y curl