+#function to load sftp servers keys to dfc app depending on KNOWN_HOSTS environment variable
+# when KNOWN_HOSTS == "all_hosts_keys" or is not set, public keys of all sftp servers are loaded
+# when KNOWN_HOSTS == "known_hosts_empty", empty known hosts file is created
+# for other strings known hosts file is not created
+function load-sftp-servers-keys() {
+ if [ -z "$KNOWN_HOSTS" ] || [ "$KNOWN_HOSTS" == "all_hosts_keys" ]; then
+ SFTP_SERVERS="$(docker ps -q --filter='name=dfc_sftp')"
+
+ for SFTP_SERVER in $SFTP_SERVERS; do
+ HOST_NAMES=$(docker inspect -f '{{ join .NetworkSettings.Networks.dfcnet.Aliases ","}}' $SFTP_SERVER)
+ KEY_ENTRY=$(echo $HOST_NAMES "$(docker exec $SFTP_SERVER cat /etc/ssh/ssh_host_rsa_key.pub)" |
+ sed -e 's/\w*@\w*$//')
+ docker exec -u root dfc_app0 sh -c "echo $KEY_ENTRY >> /home/datafile/.ssh/known_hosts"
+ done
+ elif [ "$KNOWN_HOSTS" == "known_hosts_empty" ]; then
+ docker exec -u root dfc_app0 sh -c "touch /home/datafile/.ssh/known_hosts"
+ fi
+}
+