---
- name: mariadb
  hosts: all
  tasks:

    - name: Create /home/docker/mariadb.{{inventory_hostname}} dir
      ansible.builtin.file:
        path: /home/docker/mariadb.{{inventory_hostname}}
        owner: root
        group: docker
        state: directory
        mode: '0550'

    - name: /home/docker/mariadb.{{inventory_hostname}}/genpw.sh (generate Random PW)
      blockinfile:
        path: /home/docker/mariadb.{{inventory_hostname}}/genpw.sh
        create: yes
        mode: 0550
        owner: root
        group: docker
        marker: "# {mark} ANSIBLE MANAGED BLOCK"
        block: |
          cd /home/docker/mariadb.{{inventory_hostname}}

          mysqlpassword=$(pwgen -s 32 1)

          [ -f env.db ] || echo "MARIADB_ROOT_PASSWORD=!MYSQLPASSWORD!
          " >env.db

          [ -f env.phpmyadmin ] || echo "PMA_USER=root
          PMA_PASSWORD=!MYSQLPASSWORD!
          " >env.phpmyadmin

          chmod 440 env.db env.phpmyadmin
          chown root:docker env.db env.phpmyadmin
          sed -i "s/\!MYSQLPASSWORD\!/$mysqlpassword/g" env.db env.phpmyadmin

        backup: yes
        validate: /bin/bash -n %s

    - name: /home/docker/mariadb.{{inventory_hostname}}/genpw.sh shebang
      lineinfile:
        path: /home/docker/mariadb.{{inventory_hostname}}/genpw.sh
        insertbefore: BOF
        line: "#!/bin/bash -e"

    - name: Gen initial passwords if not exists
      ansible.builtin.shell: ./genpw.sh
      args:
        chdir: /home/docker/mariadb.{{inventory_hostname}}
        creates: /home/docker/mariadb.{{inventory_hostname}}/env.db


    - name: /home/docker/mariadb.{{inventory_hostname}}/genssl.sh (generate SSL-Certificate)
      blockinfile:
        path: /home/docker/mariadb.{{inventory_hostname}}/genssl.sh
        create: yes
        mode: 0550
        owner: root
        group: docker
        marker: "# {mark} ANSIBLE MANAGED BLOCK"
        block: |
          cd /home/docker/mariadb.{{inventory_hostname}}

          [ -d ssl ] && rm -r ssl
          mkdir ssl
          cd ssl
          
          openssl genrsa 4096 > ca-key.pem
          openssl req -new -x509 -nodes -days 109500 -key ca-key.pem -subj "/C=MD/ST=mariadb/L=mariadb/O=DB/CN=mariadb.{{inventory_hostname}}" > ca-cert.pem

          openssl req -newkey rsa:4096 -days 109500 -nodes -keyout server-key-pkcs8.pem  -subj "/C=MD/ST=mariadb/L=mariadb/O=DB/CN=mariadb.{{inventory_hostname}}" > server-req.pem
          openssl rsa -in server-key-pkcs8.pem -out server-key.pem
          openssl x509 -req -in server-req.pem -days 109500 -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 > server-cert.pem

          openssl req -newkey rsa:4096 -days 109500 -nodes -keyout client-key-pkcs8.pem -subj "/C=MD/ST=mariadb/L=mariadb/O=DB/CN=mariadb.{{inventory_hostname}}" > client-req.pem
          openssl rsa -in client-key-pkcs8.pem -out client-key.pem
          openssl x509 -req -in client-req.pem -days 109500 -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 > client-cert.pem

          chmod 400 *.pem
          chown 999 *.pem

        backup: yes
        validate: /bin/bash -n %s

    - name: /home/docker/mariadb.{{inventory_hostname}}/genssl.sh shebang
      lineinfile:
        path: /home/docker/mariadb.{{inventory_hostname}}/genssl.sh
        insertbefore: BOF
        line: "#!/bin/bash -e"

    - name: Gen initial SSL if not exists
      ansible.builtin.shell: ./genssl.sh
      args:
        chdir: /home/docker/mariadb.{{inventory_hostname}}
        creates: /home/docker/mariadb.{{inventory_hostname}}/ssl/client-cert.pem

    - name: /home/docker/mariadb.{{inventory_hostname}}/ssl.cnf (generate SSL-Certificate)
      blockinfile:
        path: /home/docker/mariadb.{{inventory_hostname}}/ssl.cnf
        create: yes
        mode: 0550
        owner: root
        group: docker
        marker: "# {mark} ANSIBLE MANAGED BLOCK"
        block: |
          [mariadbd]
          ssl=1
          ssl-ca=/etc/mysql/ca-cert.pem
          ssl-cert=/etc/mysql/server-cert.pem
          ssl-key=/etc/mysql/server-key.pem
        backup: yes

    - name: /home/docker/mariadb.{{inventory_hostname}}/docker-compose.yml Container Configuration
      blockinfile:
        path: /home/docker/mariadb.{{inventory_hostname}}/docker-compose.yml
        create: yes
        mode: 0440
        owner: root
        group: docker
        marker: "# {mark} ANSIBLE MANAGED BLOCK"
        block: |
        
          services:

            mariadb.{{inventory_hostname}}:
              image: mariadb:lts
              cap_add:
                - SYS_NICE
              restart: unless-stopped
              networks:
                - mariadb.{{inventory_hostname}}--network
              volumes:
                - ./db-data:/var/lib/mysql
                - /etc/localtime:/etc/localtime:ro
                - /home/docker/_defaults/mariadb/99-server.cnf:/etc/mysql/mariadb.conf.d/99-server.cnf
                - ./ssl.cnf:/etc/mysql/mariadb.conf.d/99-ssl.cnf
                - ./ssl/ca-cert.pem:/etc/mysql/ca-cert.pem
                - ./ssl/server-cert.pem:/etc/mysql/server-cert.pem
                - ./ssl/server-key.pem:/etc/mysql/server-key.pem
              env_file:
                - env.db
                - /home/docker/_defaults/mariadb/mariadb.env
              ports:
                - 0.0.0.0:33306:3306

            mariadb.{{inventory_hostname}}--phpmyadmin:
              image: phpmyadmin:latest
              restart: unless-stopped
              env_file: env.phpmyadmin
              environment:
                - PMA_ARBITRARY=0
                - PMA_HOST=mariadb.{{inventory_hostname}}
              volumes:
                - /etc/localtime:/etc/localtime:ro
              networks:
                - mariadb.{{inventory_hostname}}--network
                - traefik
              labels:
                - traefik.enable=true
                # HTTPS
                - traefik.http.routers.mariadb-{{ ansible_facts['hostname'] }}.rule=Host(`mariadb.{{ ansible_facts['nodename'] }}`)
                - traefik.http.routers.mariadb-{{ ansible_facts['hostname'] }}.entrypoints=https
                - traefik.http.routers.mariadb-{{ ansible_facts['hostname'] }}.tls=true
                # Proxy to service-port
                - traefik.http.services.mariadb-{{ ansible_facts['hostname'] }}.loadbalancer.server.port=80
                - traefik.http.routers.mariadb-{{ ansible_facts['hostname'] }}.service=mariadb-{{ ansible_facts['hostname'] }}
                # cert via letsencrypt
                - traefik.http.routers.mariadb-{{ ansible_facts['hostname'] }}.tls.certresolver=letsencrypt
                # Traefik network
                - traefik.docker.network=traefik
                # auth
                - traefik.http.routers.mariadb-{{ ansible_facts['hostname'] }}.middlewares=secHeaders@file,default-basic-auth@file

          networks:
            mariadb.{{inventory_hostname}}--network:
              driver: bridge
              driver_opts:
                com.docker.network.bridge.name: br-mariadb
            traefik:
              external: true

        backup: yes        
      notify: Restart mariadb

#    - name: Start mariadb
#      ansible.builtin.shell: docker-compose up -d 
#      args:
#        chdir: /home/docker/mariadb.{{inventory_hostname}}
#        creates: /home/docker/mariadb.{{inventory_hostname}}/db-data/ibdata1
#
#    - name: Wait until mariadb install is finished
#      wait_for:
#        path: /home/docker/mariadb.{{inventory_hostname}}/db-data/ibdata1


  handlers:

    - name: Restart mariadb
      ansible.builtin.shell: docker-compose up -d --force-recreate
      args:
        chdir: /home/docker/mariadb.{{inventory_hostname}}