---
- name: Basic Debian Linux Setup for Containers
  hosts: all
  tasks:
    #- name: Print all available facts
    #  ansible.builtin.debug:
    #    var: ansible_facts

    - name: Install Basic Packages
      apt:
        name:
          - bc
          - psutils
          - psmisc
          - procps
          - htop
          - iotop
          - sysstat
          - strace
          - net-tools
          - vim
          - git
          - man-db
          - netcat
          - debconf-utils
          - iputils-ping
          - lsof
          - inotify-tools
          - rsync
          - dos2unix
          - locales
          - iproute2
          - cryptsetup
          - curl
          - moreutils
          - ffmpeg
          - mediainfo
          - telnet
          - libstring-approx-perl
          - postfix
          - zip
          - nmap
          - whois
          - libfile-readbackwards-perl
          - libcrypt-cbc-perl
          - libcrypt-des-perl
          - pwgen
          - certbot
          - jq
          - cifs-utils
          - apt-transport-https
          - golang
          - make
          - sshfs
          - imagemagick
          - libimage-exiftool-perl
          - sqlite3
          - html-xml-utils
          - ldmtool
          - openssh-server
        update_cache: yes
        install_recommends: no

    - name: Set a hostname
      ansible.builtin.hostname:
        name: "{{inventory_hostname}}"
    
    - name: Remove root-Password
      user:
        name: root
        password: '*'

    - name: Prefer ipv4 over ipv6 to avoid problems and waiting times
      ansible.builtin.lineinfile:
        path: /etc/gai.conf
        regexp: '^#precedence ::ffff:0:0/96  100'
        line: "precedence ::ffff:0:0/96  100  # CHANGED BY ANSIBLE"
        backup: yes

    - name: Ensure en_US.UTF-8 locale exists
      community.general.locale_gen:
        name: en_US.UTF-8 
        state: present
    - name: Ensure en_GB.UTF-8 locale exists
      community.general.locale_gen:
        name: en_GB.UTF-8
        state: present
    - name: Ensure de_DE.UTF-8 locale exists
      community.general.locale_gen:
        name: de_DE.UTF-8
        state: present
      notify: localectl
    
    - name: SSHD hardening
      blockinfile:
        path: /etc/ssh/sshd_config.d/hardening.conf
        mode: "0444"
        owner: root
        group: root
        create: yes
        insertbefore: BOF # Beginning of the file
        marker: "# {mark} ANSIBLE MANAGED BLOCK"
        block: |
          Port 22
          Port 33
          PermitRootLogin prohibit-password
          PermitUserRC no
          PermitUserEnvironment no
          PubkeyAuthentication yes
          X11Forwarding no
          AllowAgentForwarding no
          AllowTcpForwarding yes
          Subsystem sftp internal-sftp -f AUTH -l INFO -u 0007
          ## Ciphers Check https://sshcheck.com/server/{{inventory_hostname}}/
          # nmap -p22 -n -sV --script ssh2-enum-algos localhost
          KexAlgorithms curve25519-sha256@libssh.org
          HostKeyAlgorithms ssh-ed25519
          Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com
          MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com
          IgnoreRhosts yes
          LogLevel VERBOSE
          AddressFamily any          
        backup: yes
        validate: /usr/sbin/sshd -T -f %s

    - name: Disable external sftp-Subsystem
      replace:
        path: /etc/ssh/sshd_config
        regexp: '(^Subsystem.*sftp.*)'
        replace: '#\1'
        validate: /usr/sbin/sshd -T -f %s
        backup: yes

    - name: Create .ssh dir
      ansible.builtin.file:
        path: /root/.ssh
        owner: root
        group: root
        state: directory
        mode: '0550'

    - name: Generate an OpenSSH keypair ed25519
      community.crypto.openssh_keypair:
        path: /root/.ssh/id_ed25519
        type: ed25519

    - name: shell profile
      blockinfile:
        path: /etc/profile.d/settings-from-ansible.sh
        create: yes
        mode: "0444"
        owner: root
        group: root
        marker: "# {mark} ANSIBLE MANAGED BLOCK"
        block: |
          if ${use_color} ; then
            if [[ ${EUID} == 0 ]] ; then
              PS1='\[\033[01;31m\]\h\[\033[01;34m\] \w \$\[\033[00m\] '
            else
              PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
            fi
            export EDITOR="/usr/bin/vim"
            export HISTSIZE=
            export HISTFILESIZE=
            export HISTTIMEFORMAT="[%F %T] "
            if [ -f /etc/debian_version ]
            then
              export DEBIAN_FRONTEND='noninteractive'
              export LANG="en_US.UTF-8"
              alias ls='ls --color=auto'
              alias grep='grep --colour=auto'
              alias egrep='egrep --colour=auto'
              alias fgrep='fgrep --colour=auto'
            fi
          else
            # show root@ when we don't have colors
            PS1+='\u@\h \w \$'
          fi
          # execute for linuxmint
          if [ -d /etc/linuxmint ] 
          then
            grep -q /etc/profile.d/settings-from-ansible.sh ~/.bashrc || echo '. /etc/profile.d/settings-from-ansible.sh' >> ~/.bashrc
             export LANG="de_DE.UTF-8"
            #for rc in ~/.bashrc /etc/skel/.bashrc
            #do
            #  grep -q /etc/profile.d/settings-from-ansible.sh $rc || echo '. /etc/profile.d/settings-from-ansible.sh' >> $rc
            #done
          fi          
        backup: yes
        validate: /bin/bash -n %s

    - name: vim settings
      blockinfile:
        path: /etc/vim/vimrc.local
        mode: "0444"
        owner: root
        group: root
        create: yes
        marker: "\" {mark} ANSIBLE MANAGED BLOCK"
        block: |
          :syntax on
          let g:skip_defaults_vim = 1
          set encoding=utf-8
          set tabstop=2 softtabstop=0 expandtab shiftwidth=2 smarttab
          syntax match nonascii "[^[:alnum:][:punct:][:space:]]/"
          highlight nonascii guibg=Red ctermbg=2          
        backup: yes

    - name: gaboshlib from git
      ansible.builtin.git:
        repo: 'https://gitea.ds9.dedyn.io/olli/gaboshlib.git'
        dest: /etc/bash
        force: yes

  handlers:

    - name: localectl
      ansible.builtin.shell: localectl set-locale LANG=de_DE.UTF-8