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       - ntp
  74       - screen
  75       - aptitude
  76       - unp
  77       - ca-certificates
  78       - file
  79       - zsh
  80       - python-apt
  81     state: present
  82
  83 - name: make sure grml-(etc|scripts)-core is not installed
  84   apt:
  85     name:
  86       - grml-etc-core
  87       - grml-scripts-core
  88     state: absent
  89     purge: yes
  90
  91 - block:
  92     - name: install systemd specific packages
  93       apt:
  94         name:
  95           - dbus
  96           - libpam-systemd
  97         state: present
  98
  99     - name: set systemd-related environment variables
 100       copy:
 101         src: xdg_runtime_dir.sh
 102         dest: /etc/profile.d/xdg_runtime_dir.sh
 103         mode: 0644
 104
 105   when: ansible_service_mgr == "systemd"
 106
 107 - name: install zshrc
 108   with_items:
 109     - src: "zprofile"
 110       dest: "/etc/zsh/zprofile"
 111     - src: "zshrc"
 112       dest: "/etc/zsh/zshrc"
 113     - src: "zshrc.skel"
 114       dest: "/etc/skel/.zshrc"
 115   copy:
 116     src: "{{ item.src }}"
 117     dest: "{{ item.dest }}"
 118     mode: 0644
 119
 120 - name: set root default shell to zsh
 121   user:
 122     name: root
 123     shell: /bin/zsh
 124
 125 - name: set default shell for adduser
 126   with_items:
 127     - regexp: "^DSHELL"
 128       line: "DSHELL=/bin/zsh"
 129   lineinfile:
 130     dest: /etc/adduser.conf
 131     regexp: "{{ item.regexp }}"
 132     line: "{{ item.line }}"