From 2511faa114a061a3029db0575bb69edaa66c9626 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sat, 3 Oct 2020 21:40:34 +0200
Subject: move known-host cleanup to utils.sh

---
 common/utils.sh      | 28 ++++++++++++++++++++++++++++
 install.sh           |  2 +-
 remove-known-host.sh | 20 +-------------------
 3 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/common/utils.sh b/common/utils.sh
index d8e459a1..5199c3b6 100644
--- a/common/utils.sh
+++ b/common/utils.sh
@@ -37,6 +37,34 @@ ansible_variable__get() {
 }
 
 
+###########################
+## remove ssh known_hosts entries
+
+remove_known_hosts() {
+  inventory_hostname="$1"
+  ssh_hostname=$(ssh -G "$inventory_hostname" | grep "^hostname " | awk '{ print($2) }' )
+  ssh_port=$(ssh -G "$inventory_hostname" | grep "^port " | awk '{ print($2) }' )
+  known_hosts_file=$(ssh -G "$inventory_hostname" | grep "^userknownhostsfile " | awk '{ print($2) }' )
+  known_hosts_file=${known_hosts_file/#\~/$HOME}
+
+  declare -a names
+  names+=("$inventory_hostname")
+  names+=("$ssh_hostname")
+  names+=("$ssh_hostname:$ssh_port")
+  names+=("[$ssh_hostname]:$ssh_port")
+
+  ansible_variable__get ansible_host "$inventory_hostname" || exit 1
+  names+=("$ansible_host")
+  ansible_variable__get host_name "$inventory_hostname" || exit 1
+  names+=("$host_name")
+  ansible_variable__get host_domain "$inventory_hostname" > /dev/null 2>&1 && names+=("$host_name.$host_domain")
+
+  for name in ${names[@]} ; do
+    ssh-keygen -f "$known_hosts_file" -R "$name"
+  done
+}
+
+
 ###########################
 ## vault environment handling
 
diff --git a/install.sh b/install.sh
index e91ed60b..b4056858 100755
--- a/install.sh
+++ b/install.sh
@@ -18,7 +18,7 @@ echo "installing $name with $distro/$codename in environment '$env_group'"
 echo ""
 
 echo "########## clearing old ssh host keys #########"
-./remove-known-host.sh "$name"
+remove_known_hosts "$name"
 echo ""
 
 echo "########## removing cached facts #########"
diff --git a/remove-known-host.sh b/remove-known-host.sh
index 647909ea..9035935e 100755
--- a/remove-known-host.sh
+++ b/remove-known-host.sh
@@ -5,26 +5,8 @@ if [ -z "$1" ]; then
   exit 1
 fi
 
-short="$1"
-ssh_host=$(ssh -G "$short" | grep "^hostname " | awk '{ print($2) }' )
-ssh_port=$(ssh -G "$short" | grep "^port " | awk '{ print($2) }' )
-known_hosts_file=$(ssh -G "$short" | grep "^userknownhostsfile " | awk '{ print($2) }' )
-known_hosts_file=${known_hosts_file/#\~/$HOME}
-
-declare -a names
-names+=("$short")
-names+=("$ssh_host")
-names+=("$ssh_host:$ssh_port")
-names+=("[$ssh_host]:$ssh_port")
-
 cd "${BASH_SOURCE%/*}"
 source common/utils.sh
-ansible_variable__get host_name "$short" || exit 1
-names+=("$host_name")
-ansible_variable__get host_domain "$short" > /dev/null 2>&1 && names+=("$host_name.$host_domain")
-
-for name in ${names[@]} ; do
-  ssh-keygen -f "$known_hosts_file" -R "$name"
-done
+remove_known_hosts "$1"
 
 exit 0
-- 
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