test: Replace hard coded ssh keys on some test

Generate a new ssh key each time. Only implemented on bash test scripts,
go tests pending.

tools/gen-ssh.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/bash
+
+# Create SSH key
+SSH_DATA_DIR="$(mktemp -d)"
+SSH_KEY=${SSH_DATA_DIR}/id_rsa
+ssh-keygen -f "${SSH_KEY}" -N "" -q -t rsa
+
+# Change cloud-init/user-data ssh key
+key=" - $(cat "${SSH_KEY}".pub)"
+# Temporary, will copy user data from cloud-init once
+# go test are updated
+tee "${SSH_DATA_DIR}"/user-data > /dev/null << EOF
+#cloud-config
+write_files:
+  - path: "/etc/smoke-test.txt"
+    content: "c21va2UtdGVzdAo="
+    encoding: "b64"
+    owner: "root:root"
+    permissions: "0644"
+
+user: redhat
+ssh_authorized_keys:
+${key}
+EOF
+
+# Return temp directory
+echo "${SSH_DATA_DIR}"