ansible/roles/base/tasks/main.yml

   1 ---
   2 - set_fact:
   3     sshd_allowusers: >-
   4       {{ [ 'root' ] | union(user_groups.noc)
   5                     | union(sshd_allowusers_group | default([]))
   6                     | union(sshd_allowusers_host  | default([])) }}
   7
   8 - name: only allow pubkey auth for root
   9   lineinfile:
  10     dest: /etc/ssh/sshd_config
  11     regexp: "^PermitRootLogin"
  12     line: "PermitRootLogin without-password"
  13   notify: restart ssh
  14
  15 - name: limit allowed users (1/2)
  16   when: sshd_allowgroup is not defined
  17   lineinfile:
  18     dest: /etc/ssh/sshd_config
  19     regexp: "^#?AllowUsers"
  20     line: "AllowUsers {{ ' '.join(sshd_allowusers) }}"
  21   notify: restart ssh
  22
  23 - block:
  24     - name: "limit allowed users (2/2): Make sure AllowUsers is not in sshd_config"
  25       lineinfile:
  26         dest: /etc/ssh/sshd_config
  27         regexp: "^AllowUsers"
  28         state: absent
  29       notify: restart ssh
  30
  31     - name: "limit allowed users (2/2): Set AllowGroups in sshd_config"
  32       lineinfile:
  33         dest: /etc/ssh/sshd_config
  34         regexp: "^#?AllowGroups"
  35         line: AllowGroups {{ sshd_allowgroup }}
  36       notify: restart ssh
  37
  38     - name: "limit allowed users (2/2): Add allowed users to ssh group"
  39       user:
  40         name: "{{ item }}"
  41         groups: "{{ sshd_allowgroup }}"
  42         append: True
  43       with_items: "{{ sshd_allowusers }}"
  44
  45   when: sshd_allowgroup is defined
  46
  47 - name: Set authorized keys for root user
  48   authorized_key:
  49     user: root
  50     key: "{{ noc_ssh_keys | join('\n') }}"
  51     exclusive: yes
  52
  53 - name: disable apt suggests and recommends
  54   copy:
  55     src: 02no-recommends
  56     dest: /etc/apt/apt.conf.d/
  57     mode: 0644
  58
  59 - name: install basic packages
  60   apt:
  61     name:
  62       - less
  63       - psmisc
  64       - sudo
  65       - htop
  66       - dstat
  67       - mtr-tiny
  68       - tcpdump
  69       - debian-goodies
  70       - lsof
  71       - haveged
  72       - net-tools
  73       - screen
  74       - aptitude
  75       - unp
  76       - ca-certificates
  77       - file
  78       - nano
  79       - zsh
  80       - python-apt
  81     state: present
  82
  83 - name: check that ISC ntpd is not installed
  84   apt:
  85     name: ntp
  86     state: absent
  87     purge: yes
  88
  89 - name: install openntpd
  90   apt:
  91     name: openntpd
  92
  93 - name: configure openntpd
  94   copy:
  95     dest: /etc/openntpd/ntpd.conf
  96     content: |
  97       # Use the ffgraz.net NTP server
  98       servers ntp.ffgraz.net weight 3
  99
 100       # Use some servers announced from the NTP Pool
 101       servers 0.debian.pool.ntp.org
 102       servers 1.debian.pool.ntp.org
 103
 104   notify: restart openntpd
 105
 106 - name: make sure grml-(etc|scripts)-core is not installed
 107   apt:
 108     name:
 109       - grml-etc-core
 110       - grml-scripts-core
 111     state: absent
 112     purge: yes
 113
 114 - block:
 115     - name: install systemd specific packages
 116       apt:
 117         name:
 118           - dbus
 119           - libpam-systemd
 120         state: present
 121
 122     - name: set systemd-related environment variables
 123       copy:
 124         src: xdg_runtime_dir.sh
 125         dest: /etc/profile.d/xdg_runtime_dir.sh
 126         mode: 0644
 127
 128   when: ansible_service_mgr == "systemd"
 129
 130 - block:
 131     - name: workaround console-setup race condition (1/2)
 132       file:
 133         path: /etc/systemd/system/console-setup.service.d/
 134         state: directory
 135
 136     - name: workaround console-setup race condition (2/2)
 137       copy:
 138         content: "[Unit]\nAfter=systemd-tmpfiles-setup.service\n"
 139         dest: /etc/systemd/system/console-setup.service.d/override.conf
 140         mode: 0644
 141       # no need to relaod systemd here, it is only there to fix a boot-time race-condition
 142
 143   when: ansible_distribution == "Ubuntu"
 144
 145 - name: install zshrc
 146   with_items:
 147     - src: "zprofile"
 148       dest: "/etc/zsh/zprofile"
 149     - src: "zshrc"
 150       dest: "/etc/zsh/zshrc"
 151     - src: "zshrc.skel"
 152       dest: "/etc/skel/.zshrc"
 153   copy:
 154     src: "{{ item.src }}"
 155     dest: "{{ item.dest }}"
 156     mode: 0644
 157
 158 - name: set root default shell to zsh
 159   user:
 160     name: root
 161     shell: /bin/zsh
 162
 163 - name: set default shell for adduser
 164   with_dict:
 165     DSHELL: /bin/zsh
 166   lineinfile:
 167     dest: /etc/adduser.conf
 168     regexp: "^#?{{ item.key }}="
 169     line: "{{ item.key }}={{ item.value }}"