---
- name: sftp-share
  hosts: all
  tasks:

  - name: Allow all access to tcp port 28
    community.general.ufw:
      rule: allow
      port: '28'
      proto: tcp

  - name: Create /home/docker/sftp-share dir
    ansible.builtin.file:
      path: /home/docker/sftp-share
      owner: root
      group: docker
      state: directory
      mode: '0550'

  - name: Create Data-Directory /home/docker/sftp-share/data
    ansible.builtin.file:
      path: /home/docker/sftp-share/data
      owner: root
      group: 28
      state: directory
      mode: '0755'

  - name: Gen sshd ed25519 host-keys
    ansible.builtin.shell: ssh-keygen -q -N "" -t ed25519 -f ssh_host_ed25519_key
    args:
      chdir: /home/docker/sftp-share
      creates: /home/docker/sftp-share/ssh_host_ed25519_key

  - name: /home/docker/sftp-share/docker-compose.yml
    blockinfile:
      path: /home/docker/sftp-share/docker-compose.yml
      mode: "0440"
      owner: root
      group: root
      create: yes
      marker: "# {mark} ANSIBLE MANAGED BLOCK"
      block: |
        version: '3.6'
        services:
          sftp-share:
            build:
              context: .
              dockerfile: Dockerfile
            restart: unless-stopped
            env_file: env
            ports: 
              - "28:28"
            volumes:
              - /etc/localtime:/etc/localtime:ro
              - ./ssh_host_ed25519_key:/etc/ssh/ssh_host_ed25519_key
              - ./ssh_host_ed25519_key.pub:/etc/ssh/ssh_host_ed25519_key.pub
              - ./sftp-share.conf:/etc/sftp-share.conf:ro
              - ./sftp-share-user.conf:/etc/sftp-share-user.conf
              - ./data:/sftp-share:rw
            networks:
              - sftp-share--network
        
        networks:
          sftp-share--network:
            driver: bridge
            driver_opts:
              com.docker.network.bridge.name: br-sftp-share
      backup: yes
    notify:
    - Restart sftp-share

  - name: /home/docker/sftp-share/Dockerfile
    blockinfile:
      path: /home/docker/sftp-share/Dockerfile
      mode: "0440"
      owner: root
      group: root
      create: yes
      marker: "# {mark} ANSIBLE MANAGED BLOCK"
      block: |
        FROM debian:latest
        RUN apt-get update \
            && apt-get install -y openssh-server strace \
            && groupadd -g 28 sftp-share \
            && mkdir -p -m0755 /run/sshd
        ENV LANG en_US.utf8
        COPY ./docker-entrypoint.sh /
        ENTRYPOINT ["/docker-entrypoint.sh"]
      backup: yes
    notify:
    - Restart sftp-share

  - name: Create env file
    copy:
      content: ""
      dest: /home/docker/sftp-share/env
      force: no
      group: root
      owner: root
      mode: 0600

  - name: Create additional Config sftp-share-user.conf
    copy:
      content: ""
      dest: /home/docker/sftp-share/sftp-share-user.conf
      force: no
      group: root
      owner: root
      mode: 0600

  - name: /home/docker/sftp-share/docker-entrypoint.sh
    blockinfile:
      path: /home/docker/sftp-share/docker-entrypoint.sh
      mode: "0555"
      owner: root
      group: root
      create: yes
      marker: "# {mark} ANSIBLE MANAGED BLOCK"
      block: |
        ### create Users by ENV
        # ToDo: LDAP-Integration
        for SFTPUSERPW in $SFTPUSERS
        do
          SFTPUSER=$(echo ${SFTPUSERPW} | cut -d ":" -f1)
          useradd -g sftp-share -G 33,101 -m -s /usr/sbin/nologin $SFTPUSER
          echo ${SFTPUSERPW} | chpasswd
          unset $SFTPUSERPW
        done
        unset $SFTPUSERS
        ### Start SSHD/SFTP-Server
        /usr/sbin/sshd -D -f /etc/sftp-share.conf
      backup: yes
      validate: /bin/bash -n %s
    notify:
    - Restart sftp-share

  - name: /home/docker/sftp-share/docker-entrypoint.sh shebang
    lineinfile:
      path: /home/docker/sftp-share/docker-entrypoint.sh
      insertbefore: BOF
      line: "#!/bin/bash"

  - name: /home/docker/sftp-share/sftp-share.conf
    blockinfile:
      path: /home/docker/sftp-share/sftp-share.conf
      mode: "0500"
      owner: root
      group: root
      create: yes
      marker: "# {mark} ANSIBLE MANAGED BLOCK"
      block: |
        Port 28
        Protocol 2
        PasswordAuthentication no
        PubkeyAuthentication yes
        UsePAM yes
        PrintMotd no
        PrintLastLog no
        AcceptEnv LANG LC_*
        AllowTcpForwarding no
        AllowAgentForwarding no
        AllowGroups sftp-share
        IgnoreRhosts yes
        PermitRootLogin no
        PermitTunnel no
        X11Forwarding no
        Subsystem sftp internal-sftp -f AUTH -l INFO -u 0007
        ForceCommand internal-sftp -f AUTH -l INFO -u 0007
        LogLevel VERBOSE
        TCPKeepAlive no
        ClientAliveCountMax 30
        ClientAliveInterval 60
        ## Ciphers Check https://sshcheck.com/server/gabosh.net/28
        #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
        #AuthenticationMethods publickey,keyboard-interactive
        ChrootDirectory /sftp-share

        Include /etc/sftp-share-user.conf
      backup: yes
      validate: /usr/sbin/sshd -T -f %s
    notify:
    - Restart sftp-share

  
  handlers:

  - name: Restart sftp-share
    ansible.builtin.shell: docker-compose build --pull --no-cache --force-rm && docker-compose up -d
    args:
      chdir: /home/docker/sftp-share