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diff --git a/deploy/adapters/ansible/roles/pre-openstack/tasks/RedHat.yml b/deploy/adapters/ansible/roles/pre-openstack/tasks/RedHat.yml
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+##############################################################################
+# Copyright (c) 2016 HUAWEI TECHNOLOGIES CO.,LTD and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+---
+- name: make sure ssh dir exist
+ file:
+ path: '{{ item.path }}'
+ owner: '{{ item.owner }}'
+ group: '{{ item.group }}'
+ state: directory
+ mode: 0755
+ with_items:
+ - path: /root/.ssh
+ owner: root
+ group: root
+
+- name: write ssh config
+ copy:
+ content: "UserKnownHostsFile /dev/null\nStrictHostKeyChecking no"
+ dest: '{{ item.dest }}'
+ owner: '{{ item.owner }}'
+ group: '{{ item.group }}'
+ mode: 0600
+ with_items:
+ - dest: /root/.ssh/config
+ owner: root
+ group: root
+
+- name: generate ssh keys
+ shell: if [ ! -f ~/.ssh/id_rsa.pub ]; \
+ then ssh-keygen -q -t rsa -f ~/.ssh/id_rsa -N ""; \
+ else echo "already gen ssh key!"; fi;
+
+- name: fetch ssh keys
+ fetch:
+ src: /root/.ssh/id_rsa.pub
+ dest: /tmp/ssh-keys-{{ ansible_hostname }}
+ flat: "yes"
+
+- authorized_key:
+ user: root
+ key: "{{ lookup('file', item) }}"
+ with_fileglob:
+ - /tmp/ssh-keys-*
+ - /root/.ssh/id_rsa.pub
+
+- name: change sources(yum) list
+ copy:
+ src: centos_base.repo
+ dest: /etc/yum.repos.d/centos_base.repo
+
+- name: Install yum packages
+ yum:
+ pkg: "{{ item }}"
+ state: "present"
+ with_items: "{{ yumpackages }}"
+
+- name: add the appropriate kernel modules
+ copy:
+ src: modules
+ dest: /etc/modules-load.d/openstack-ansible.conf
+
+- name: restart ntp service
+ shell: "systemctl enable ntpd.service && systemctl start ntpd.service"
+
+- name: change the MaxSessions
+ lineinfile:
+ dest: /etc/ssh/sshd_config
+ line: "MaxSessions 500"
+
+- name: restart ssh service
+ shell: service sshd restart