setup_tetration_sensor.yml

#!/usr/bin/ansible-playbook
---
#
#      setup_tetration_sensor.yml
#
#      Copyright (c) 2018 World Wide Technology, Inc.
#      All rights reserved.
#
#      author: joel.king@wwt.com
#
#      usage:  ./setup_tetration_sensor.yml  -e "PASSWORDS_DIR=$HOME/ansible/playbooks"
#
#              export ANSIBLE_LOG_PATH=/tmp/verify.txt
#              ./setup_tetration_sensor.yml --tags check  -e "PASSWORDS_DIR=$HOME/ansible/playbooks"
#              grep 'command: ' /tmp/verify.txt
#
#      notes:
#              Tested using Linux verson: CentOS-7-x86_64-Everything-1804.iso
#
#              For human-readable output modify ansible.cfg statement stdout_callback = debug
#              and excute with -v
#
#      reference:
#          Cisco Tetration Analytics Installation Guide  for the Software Agent
#          https://www.cisco.com/c/dam/en/us/td/docs/data-center-analytics/tetration-analytics/sw/install/cta_install_guide_for_software_sensor_agents.pdf
#
- name: Installs Tetration software agent
  hosts: TETRATION
  no_log: False
  gather_facts: True

  vars_files:
    - "{{ PASSWORDS_DIR }}/passwords.yml"

  vars:
    students: 0

    download:
      dest_dir: "/tmp/tetration/"
      images:
        - {server: "ftp://{{ ftp.username }}:{{ ftp.password }}@10.255.40.101/SDN/images/tetration/", fn: "tet-sensor-2.3.1.41-1.el7-atctetration01.enforcer.x86_64.rpm"}

    commands:
      check:  # Checks if the deep visibility agent dependencies are met on RHEL, CentOS...
        - cat /etc/centos-release
        - uname -r
        - cat /etc/shells
        - rpm --showrc | grep 'rpmlib(CompressedFileNames)'
        - rpm --showrc | grep 'rpmlib(PayloadFilesHavePrefix)'
        - rpm --showrc | grep rpmlib
        - curl -V
        - dmidecode -V
        - openssl version -a
        - cpio --version
        - sed --version
        - awk --version
        - flock -V
        - rpm -qa | grep lsb
        - yum provides */lsb_release
        - rpm -qa | grep libpcap
        - iptables --version
        - ipset --version
        - crontab -l

      verification: # verifies the agent installation on RHEL, CentOS...
        - service tet-sensor status
        - service tet-enforcer status
        - ps aux | grep tet
        - rpm -qa | grep tet
        - netstat -natp | grep -i tet

    packages:
      apt:
          - git
      pip:
          - tetpyclient                         #  Python API Client for Tetration Analytics
      yum:
          - git                                 # Git for Training
          - python-pip                          # Pip not installed on CentOS by default
          - epel-release                        # Required to download the latest Ansible
          - ansible                             # Ansible for Training
          - redhat-lsb-core                     # Pre-req for the Tetraton software sensor

  tasks:

    - name: Setup determines package manager and distribution
      debug:  # 'apt' or 'yum', 'CentOS', 'Ubuntu', etc.
        msg:  "Package manager:{{ ansible_pkg_mgr }} Distro:{{ ansible_distribution }}"

    #
    #  CentOS
    #
    - name: Install Tetration software sensor
      block:
        - name: Optionally issue commands for pre-install check
          shell: "{{ item }}"
          with_items: "{{ commands.check }}"
          register: check
          ignore_errors: True
          tags: check

        - debug:
            msg: "command: {{ item.cmd }} value: {{ item.stdout }}"
          with_items: "{{ check.results }}"
          tags: check

        - name: Create a directory for the file(s)
          file:
            path: "{{ download.dest_dir }}" 
            owner: "{{ ansible_user_id }}"
            group: "{{ ansible_user_id }}"
            state: directory
            mode: 0755
          become: true

        - name: Download files / to install on the server
          get_url:
            url: "{{ item.server }}{{ item.fn }}"
            dest: "{{ download.dest_dir }}{{ item.fn }}"
          with_items:  "{{ download.images }}"

        - name: Install the yum packages
          yum:
            name: "{{ item }}"
            state: latest
          with_items:  "{{ packages.yum }}"

        - name: Install Tetration (using yum)
          yum:
            name: "{{ download.dest_dir }}{{ item.fn }}"
          with_items:  "{{ download.images }}"

        - name: Upgrade all packages
          yum:
            name: '*'
            state: latest

        - name: Issue commands for post-install check
          shell: "{{ item }}"
          with_items: "{{ commands.verification }}"
          register: check
          tags: post

        - debug:
            msg: "command: {{ item.cmd }} value: {{ item.stdout }}"
          with_items: "{{ check.results }}"
          tags: post

      when: ansible_pkg_mgr == 'yum'
      become: true
      become_user: root

    #
    # Python
    #
    - name: Common Python packages
      block:
        - name: Install the python packages
          pip:
            name: "{{ item }}"
            state: latest
            use_mirrors: no
          with_items: "{{ packages.pip }}"

    #
    #  Create student user accounts
    #
    - include_role:
        name: create_user
      vars:
          class_size: "{{ students }}"
      when: students > 0
      tags: create_user