- hosts: server
  remote_user: root
  tasks:
    - name: add Obnam package repository to APT
      apt_repository:
        repo: "deb [trusted=yes]  http://ci-prod-controller.vm.liw.fi/debian unstable-ci main"

    - name: refresh APT package lists and upgrade all installed packages
      apt:
        update_cache: true
        upgrade: true

    - name: install packages for an Obnam server
      apt:
        name:
          - obnam
          - psmisc

    - name: "install packages for Let's Encrypt TLS certificates"
      apt:
        name:
          - apache2
          - dehydrated
          - dehydrated-apache2
      when: domain is defined

    - name: create Obnam configuration directory
      file:
        path: /etc/obnam
        state: directory

    - name: create Obnam directory for chunk storage
      file:
        path: /srv/obnam/chunks
        state: directory

    - name: "install Obnam server configuration for provided TLS certifiactes"
      copy:
        src: "{{ item }}"
        dest: "/etc/obnam/{{ item }}"
      with_items:
        - server.yaml
        - server.key
        - server.pem
      when: domain is not defined

    - name: "install Obnam server configuration for Let's Encrypt TLS certifiactes"
      template:
        src: server.yaml.j2
        dest: /etc/obnam/server.yaml
      when: domain is defined

    - name: install Obnam service file for systemd
      copy:
        src: obnam.service
        dest: /etc/systemd/system/obnam.service

    - name: configure domains for TLS certificates
      copy:
        content: |
          {{ domain }}
        dest: /etc/dehydrated/domains.txt
      when: domain is defined

    - name: stop Obnam service for getting TLS certificates
      systemd:
        daemon_reload: true
        name: obnam
        state: stopped
      when: domain is defined

    - name: start Apache server for getting TLS certificates
      systemd:
        name: apache2
        state: started
      when: domain is defined

    - name: get TLS certificates
      shell: |
        dehydrated --register --accept-terms
        dehydrated -c
      when: domain is defined

    - name: stop Apache server so Obnam server can be started again
      systemd:
        name: apache2
        state: stopped
      when: domain is defined

    - name: start Obnam server
      systemd:
        name: obnam
        state: restarted
  vars:
    tls_key_path: "/var/lib/dehydrated/certs/{{ domain }}/privkey.pem"
    tls_cert_path: "/var/lib/dehydrated/certs/{{ domain }}/cert.pem"