# First install ssh-key at remote computer
# In case of python error start:
# ansible troisdorf4 -u root -m raw -a "apt-get update && apt-get install python -y"

- name: Install Freifunk Troisdorf super node
#  hosts: FreifunkSupernodesL2TP
  hosts: '{{ target }}'
  sudo: False
  user: root
  gather_facts: False
  vars:
    snversion: master_v3.1.5
    batmanversion: v2017.4
    common_required_packages:
      - git
      - make
      - gcc
      - build-essential
      - pkg-config
      - libgps-dev
      - libnl-3-dev
      - libjansson-dev
      - isc-dhcp-server
      - libcap-dev
      - iproute
      - libnetfilter-conntrack3
      - python-dev
      - libevent-dev
      - ebtables
      - python-virtualenv
      - iptables-persistent
      - iftop
      - screen
      - bridge-utils
      - tcpdump
      - bind9
      - radvd
      - curl
      - htop
      - psmisc
      - dnsutils
      - ntp
      - libnl-genl-3-dev
      - virtualenv
      - batman-adv
      - batctl
      - libffi-dev
      - libnetfilter-conntrack-dev
      - libnfnetlink-dev
      - speedtest-cli
    modules_required:
      - batman-adv
      - nf_conntrack_netlink
      - nf_conntrack
      - nfnetlink
      - l2tp_netlink
      - l2tp_core
      - l2tp_eth
    tunneldigger_scripts:
      - start-broker.sh
      - batdelif.sh
    tunneldigger_service:
      - tunneldigger.service
    broker_cfg:
      - l2tp_broker.cfg
    authorized_keys:
      - authorized_keys
    logrotate_config:
      - logrotate.conf

  tasks:
    - name: Remove cdrom in sources.list
      raw: "sed -i '/deb cdrom/c\\#' /etc/apt/sources.list"
    - name: Make this server ansible compatible
      raw: "apt-get update && apt-get install python apt-transport-https dirmngr -y"
    - name: Adding Freifuck GPG Key
      raw: "apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B2522557E6AB9BF5"
#      apt_key:
#             id: B2522557E6AB9BF5
#             url: https://keyserver.ubuntu.com
#             url: https://pool.sks-keyservers.net
#             url: https://sks.pod01.fleetstreetops.com
#             state: present

    - name: Import Slack token
      include_vars: "{{ slack_token_file }}"
    - name: Import root password
      include_vars: "{{ root_password_file }}"
    - name: Add Freifuck repo to source list
      apt_repository: repo='deb https://freifuck.de/debian stretch main' state=present 
    - name: Add backport repo to source list
      apt_repository: repo='deb http://http.debian.net/debian stretch-backports main' state=present
    - name: Update apt cache
      apt: update_cache=yes
    - name: Gathering facts
      setup:
    - name: Set IPv4 in hostfile
      lineinfile: dest=/etc/hosts regexp='^{{ ansible_default_ipv4.address }}' line='{{ ansible_default_ipv4.address }} {{ sn_hostname }}.{{ sn_fqdn }} {{ sn_hostname }}' owner=root group=root mode=0644 state=present
    - name: Set IPv6 in hostfile
      lineinfile: dest=/etc/hosts regexp='^{{ ansible_default_ipv6.address }}' line='{{ ansible_default_ipv6.address }} {{ sn_hostname }}.{{ sn_fqdn }} {{ sn_hostname }}' owner=root group=root mode=0644 state=present
      when: ansible_default_ipv6.address is defined
    - name: set hostname
      hostname: name='{{ sn_hostname }}'
      register: sethostname
    - name: disable multi CPU Kernel (SMP)
      lineinfile: dest=/etc/default/grub regexp='^GRUB_CMDLINE_LINUX_DEFAULT=' line='GRUB_CMDLINE_LINUX_DEFAULT="quiet maxcpus=0 nosmp"' state=present
      register: grubnosmp
    - name: Update grub
      shell: update-grub2
      when: grubnosmp.changed
    - name: Reboot the server
      shell: sleep 2 && shutdown -r now "Ansible updates triggered, no SMP"
      async: 1
      poll: 0
      ignore_errors: true
      when: sethostname.changed
    - name: waiting for server to come back (1st)
      local_action:
                   wait_for
                   host={{ inventory_hostname }}
                   port=22
                   delay=20
                   timeout=300
      when: hosts.changed
      when: sethostname.changed
    - name: Install common required packages
      apt:
        name: "{{ item }}"
        state: present
        update_cache: yes
      with_items: "{{ common_required_packages }}"
      register: aptupdates
    - name: Set clock
      shell: /etc/init.d/ntp stop && /usr/sbin/ntpd -q -g && /etc/init.d/ntp start
    - name: Get Tunneldigger
      git: repo=https://github.com/Freifunk-Troisdorf/tunneldigger.git dest=/srv/tunneldigger
      register: tunneldigger
      when: aptupdates.changed
    - name: Configure tunneldigger
      raw: "cd /srv/tunneldigger && virtualenv env_tunneldigger && source env_tunneldigger/bin/activate && cd broker && python setup.py install"
      when: tunneldigger.changed
    - name: Copy l2tp broker config template
      template: src=./files/{{ item }} dest=/srv/tunneldigger owner=root group=root mode=0444
      with_items: "{{ broker_cfg }}"
      when: tunneldigger.changed
    - name: Copy tunneldigger script template
      template: src=./files/bataddif.sh.j2 dest=/srv/tunneldigger/bataddif.sh owner=root group=root mode=0500
      when: tunneldigger.changed
    - name: Copy tunneldigger scripts
      copy: src=./files/{{ item }} dest=/srv/tunneldigger owner=root group=root mode=0500
      with_items: "{{ tunneldigger_scripts }}"
      when: tunneldigger.changed
    - name: Copy tunneldigger service template
      copy: src=./files/{{ item }} dest=/etc/systemd/system owner=root group=root mode=0444
      with_items: "{{ tunneldigger_service }}"
      when: tunneldigger.changed
    - name: Add modules
      lineinfile: dest=/etc/modules line={{ item }}
      with_items: "{{ modules_required }}"
      register: modules_req
    - name: Tunneldigger reload
      command: "{{item}}"
      with_items:
      - systemctl daemon-reload
      - systemctl enable tunneldigger.service
      when: tunneldigger.changed
    - name: Copy logrotate config
      copy: src=./files/{{ item }} dest=/etc/ owner=root group=root mode=0500
      with_items: "{{logrotate_config}}"
    - name: Create freifunk directory
      file: path=/opt/freifunk state=directory mode=0755
    - name: Copy dhcpd template file
      template: src=./files/dhcpd.conf.j2 dest=/etc/dhcp/dhcpd.conf owner=root group=root mode=0444
      register: dhcpd
    - name: Clone static DHCP config
      git: repo="{{ static_dhcp_repo }}" dest=/opt/freifunk/static-dhcp
      when: dhcpd.changed 
    - name: Add cron static DHCP
      cron: name=StaticDHCP minute="*" job="/opt/freifunk/static-dhcp/dhcp-update.sh"
      when: dhcpd.changed
    - name: Restart dhcpd
      service: name=isc-dhcp-server state=restarted
      when: dhcpd.changed
      ignore_errors: yes
    - name: Add cron backbone script
      cron: name=backbone special_time=reboot job="/opt/freifunk/l2tp_backbone.sh"
    - name: Add cron startup script
      cron: name=startup special_time=reboot job="/opt/freifunk/sn_startup.sh"
    - name: Copy backbone script
      template: src=./files/l2tp_backbone.sh.exit.j2 dest=/opt/freifunk/l2tp_backbone.sh owner=root group=root mode=0544
    - name: Exit node startup script super- and exitnode
      template: src=./files/sn_startup.exit.sh.j2 dest=/opt/freifunk/sn_startup.sh owner=root group=root mode=0500
      when: sn_exit is defined
    - name: Exit node startup script super- and exitnode
      template: src=./files/sn_startup.local.exit.sh.j2 dest=/opt/freifunk/sn_startup.sh owner=root group=root mode=0500
      when: sn_local_exit is defined
    - name: SSH authorized_keys
      copy: src=./files/{{ item }} dest=/root/.ssh owner=root group=root mode=0400
      with_items: "{{ authorized_keys }}"
    - name: Bind9, activate ff zone
      lineinfile: dest=/etc/bind/named.conf line='include "/etc/bind/ff/ff.conf";' state=present
    - name: Copy option template
      template: src=./files/named.conf.options.j2 dest=/etc/bind/named.conf.options owner=root group=bind mode=644
    - name: Create ff directory
      file: path=/etc/bind/ff state=directory
    - name: Copy FF Zones
      copy: src=./files/ff/{{ item }} dest=/etc/bind/ff/{{ item }} owner=root group=bind mode=644
      with_items: 
        - ff.conf
    - name: Copy ff Zone config template
      template: src=./files/ff/db.ff.j2 dest=/etc/bind/ff/db.ff owner=bind group=root mode=0444
    - name: Copy radvd config template
      template: src=./files/radvd.conf.j2 dest=/etc/radvd.conf owner=radvd group=root mode=0444
    - name: Interface configuration with ffrl gre tunnel
      template: src=./files/interfaces-{{ sn_hostname }}.j2 dest=/etc/network/interfaces owner=root group=root mode=0544
    - apt: update_cache=yes
    - name: Install bird
      apt: state=present pkg=bird
    - name: Bird configuration
      copy: src=./files/bird-{{ sn_hostname }}.conf dest=/etc/bird/bird.conf owner=bird group=bird mode=0444
    - name: Bird configuration
      copy: src=./files/bird6-{{ sn_hostname }}.conf dest=/etc/bird/bird6.conf owner=bird group=bird mode=0444
    - name: Copy Slacktee Config
      template: src=./files/slacktee.conf.j2 dest=/etc/slacktee.conf owner=root group=root mode=0544
    - name: Copy Slacktee
      copy: src=./files/slacktee.sh dest=/usr/local/bin/slacktee.sh owner=root group=root mode=0744
    - name: set netfilter rules
      lineinfile:
        dest: /etc/sysctl.conf
        line: "{{ item }}"
      with_items:
               - net.ipv4.netfilter.ip_conntrack_generic_timeout = 240
               - net.ipv4.netfilter.ip_conntrack_tcp_timeout_established = 54000
               - net.netfilter.nf_conntrack_max = 65536
    - name: check modprobe.conf
      stat: path=/etc/modprobe.conf
      register: modprobe1
    - name: create /etc/modprobe.conf when not present
      file: path=/etc/modprobe.conf state=touch owner=root group=root mode=0544
      when: modprobe1.stat.exists == False
    - name: check /etc/modprobe.conf
      lineinfile: dest=/etc/modprobe.conf line="options ip_conntrack hashsize=65536"
    - name: Change root password
      user:
       name: root
       password: "{{ sn_rootpasswd }}"
    - name: Logrotate rights
      file: path=/etc/logrotate.conf mode=0644 owner=root group=root
    - name: Wirte version information
      shell: touch /etc/sn_version && echo {{ snversion }} > /etc/sn_version
    - name: Reboot the server finally
      shell: sleep 2 && shutdown -r now "Ansible updates triggered"
      async: 1
      poll: 0
      ignore_errors: true
      when: tunneldigger.changed
    - name: waiting for server to come back
      local_action:
                   wait_for
                   host={{ inventory_hostname }}
                   port=22
                   delay=20
                   timeout=300
      when: tunneldigger.changed
    - name: Send notification message via Slack
      local_action:
        module: slack
        token: "{{ slack_token }}"
        msg: "{{ inventory_hostname }} completed with {{ snversion }}"
        channel: "#technik"
        username: "Ansible on {{ inventory_hostname }}"
        parse: 'none'