Direct prepare.sh log into log file

Also remove ansible/python2-docker installation from prepare.sh as it is useless
for target node.

Change-Id: I90ae9a34f6319bb418aeabdc70405e14b48ed893
Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

backend/kolla/prepare.sh

@@ -30,7 +30,6 @@ echo -e "[Service]\nMountFlags=shared\nEnvironmentFile=/etc/sysconfig/docker\nEx
 systemctl daemon-reload
 systemctl restart docker
 systemctl enable docker
-yum install -y python2-docker
 
 yum -y install ntp
 systemctl enable ntpd.service
@@ -47,8 +46,6 @@ chkconfig network on
 systemctl disable firewalld
 systemctl stop firewalld
 
-yum -y install ansible
-
 # multicast related
 prepare_dir=$(dirname $(readlink -f "$0"))
 yum install -y $prepare_dir/daisy4nfv-jasmine*.rpm

code/daisy/daisy/api/backends/kolla/install.py

@@ -323,7 +323,7 @@ def _thread_bin(req, cluster_id, host, root_passwd, fp, host_name_ip_list,
             'ssh -o StrictHostKeyChecking='
             'no %s %s/prepare.sh %s' %
             (host_ip, host_prepare_file, docker_registry_ip),
-            shell=True, stderr=subprocess.STDOUT)
+            shell=True, stdout=fp, stderr=fp)
     except subprocess.CalledProcessError as e:
         message = "exec prepare.sh on %s failed!", host_ip
         LOG.error(message)