Update of Packer builder for Vagrant and various clouds

[osm/devops.git] / packer / packer_templates / _common / sshd.sh

diff --git a/packer/packer_templates/_common/sshd.sh b/packer/packer_templates/_common/sshd.sh
new file mode 100644 (file)
index 0000000..2c37906
--- /dev/null
+++ b/packer/packer_templates/_common/sshd.sh
@@ -0,0 +1,32 @@
+#!/bin/sh -eux
+
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+SSHD_CONFIG="/etc/ssh/sshd_config"
+
+# ensure that there is a trailing newline before attempting to concatenate
+sed -i -e '$a\' "$SSHD_CONFIG"
+
+USEDNS="UseDNS no"
+if grep -q -E "^[[:space:]]*UseDNS" "$SSHD_CONFIG"; then
+    sed -i "s/^\s*UseDNS.*/${USEDNS}/" "$SSHD_CONFIG"
+else
+    echo "$USEDNS" >>"$SSHD_CONFIG"
+fi
+
+GSSAPI="GSSAPIAuthentication no"
+if grep -q -E "^[[:space:]]*GSSAPIAuthentication" "$SSHD_CONFIG"; then
+    sed -i "s/^\s*GSSAPIAuthentication.*/${GSSAPI}/" "$SSHD_CONFIG"
+else
+    echo "$GSSAPI" >>"$SSHD_CONFIG"
+fi