nextcloud: intall one instance at a time

* introduce many variable with sensible defaults
* generate an admin password if none is provided (default)
* execute occ commands as unprivileged user

nextcloud/defaults/main.yml

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+---
+nextcloud_webserver: 'nginx'
+nextcloud_version: "13.0.1"
+nextcloud_archive_name: "nextcloud-{{ nextcloud_version }}.tar.bz2"
+nextcloud_releases_baseurl: "https://download.nextcloud.com/server/releases/"
+
+nextcloud_instance_name: "nextcloud"
+nextcloud_user: "{{ nextcloud_instance_name }}"
+nextcloud_domains: []
+
+nextcloud_home: "/home/{{ nextcloud_user }}"
+nextcloud_webroot: "{{ nextcloud_home }}/nextcloud"
+nextcloud_data: "{{ nextcloud_webroot }}/data"
+
+nextcloud_db_user: "{{ nextcloud_user }}"
+nextcloud_db_name: "{{ nextcloud_instance_name }}"
+
+nextcloud_admin_login: "admin"
+nextcloud_admin_password: ""

nextcloud/meta/main.yml

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+---
+dependencies:
+  - { role: nginx, when: nextcloud_webserver == 'nginx' }
+  - { role: php, php_fpm_enable: True }

nextcloud/tasks/archive.yml

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+---
+
+- name: Retrieve Nextcloud archive
+  get_url:
+    url: "{{ nextcloud_releases_baseurl }}{{ nextcloud_archive_name }}"
+    dest: "{{ nextcloud_home }}/{{ nextcloud_archive_name }}"
+    force: no
+  tags:
+    - nextcloud
+
+- name: Retrieve Nextcloud sha256 checksum
+  get_url:
+    url: "{{ nextcloud_releases_baseurl }}{{ nextcloud_archive_name }}.sha256"
+    dest: "{{ nextcloud_home }}/{{ nextcloud_archive_name }}.sha256"
+    force: no
+  tags:
+    - nextcloud
+
+- name: Verify Nextcloud sha256 checksum
+  command: "sha256sum -c {{ nextcloud_archive_name }}.sha256"
+  changed_when: "False"
+  args:
+    chdir: "{{ nextcloud_home }}"
+  tags:
+    - nextcloud
+
+- name: Extract Nextcloud archive
+  unarchive:
+    src: "{{ nextcloud_home }}/{{ nextcloud_archive_name }}"
+    dest: "{{ nextcloud_home }}"
+    creates: "{{ nextcloud_home }}/nextcloud"
+    remote_src: True
+    mode: "0750"
+    owner: "{{ nextcloud_user }}"
+    group: "{{ nextcloud_user }}"
+  tags:
+    - nextcloud

nextcloud/tasks/config.yml

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+---
+
+- name: Create data directory
+  file:
+    dest: "{{ nextcloud_data | mandatory }}"
+    state: directory
+    mode: "0770"
+    owner: "{{ nextcloud_user }}"
+    group: "{{ nextcloud_user }}"
+  tags:
+    - nextcloud
+
+- name: Link config dir to global config dir
+  file:
+    src: "{{ nextcloud_home }}/config/config.php"
+    dest: "{{ nextcloud_webroot }}/config/config.php"
+    owner: "{{ nextcloud_user }}"
+    group: "{{ nextcloud_user }}"
+    state: link
+    force: True
+  tags:
+    - nextcloud
+
+- block:
+  - name: Generate admin password
+    command: 'apg -n 1 -m 16 -M lcN'
+    register: nextcloud_admin_password_apg
+    check_mode: no
+    changed_when: False
+  - debug:
+      var: nextcloud_admin_password_apg
+      verbosity: 1
+
+  - set_fact:
+      nextcloud_admin_password: "{{ nextcloud_admin_password_apg.stdout }}"
+
+  - debug:
+      msg: "WARNING: your generated admin password is '{{ nextcloud_admin_password }}'."
+  tags:
+    - nextcloud
+  when: nextcloud_admin_password == ""
+
+
+- name: Install Nextcloud
+  command: "php ./occ maintenance:install --database mysql --database-name {{ nextcloud_db_name | mandatory }} --database-user {{ nextcloud_db_user | mandatory }} --database-pass {{ nextcloud_db_pass | mandatory }} --admin-user {{ nextcloud_admin_login | mandatory }} --admin-pass {{ nextcloud_admin_password | mandatory }} --data-dir {{ nextcloud_data | mandatory }}"
+  args:
+    chdir: "{{ nextcloud_webroot }}"
+    creates: "{{ nextcloud_home }}/config/config.php"
+  become_user: "{{ nextcloud_user }}"
+  tags:
+    - nextcloud
+
+- name: Configure Nextcloud Mysql password
+  replace:
+    dest: "{{ nextcloud_home }}/config/config.php"
+    regexp:  "'dbpassword' => '([^']*)',"
+    replace: "'dbpassword' => '{{ nextcloud_db_pass }}',"
+  tags:
+    - nextcloud
+
+- name: Configure Nextcloud cron
+  cron:
+    name: 'Nextcloud'
+    minute: "*/15"
+    job: "php -f {{ nextcloud_webroot }}/cron.php"
+    user: "{{ nextcloud_user }}"
+  tags:
+    - nextcloud
+
+- name: Erase previously trusted domains config
+  command: "php ./occ config:system:set trusted_domains"
+  args:
+    chdir: "{{ nextcloud_webroot }}"
+  become_user: "{{ nextcloud_user }}"
+  tags:
+    - nextcloud
+
+- name: Configure trusted domains
+  command: "php ./occ config:system:set trusted_domains {{ item.0 }} --value {{ item.1 }}"
+  args:
+    chdir: "{{ nextcloud_webroot }}"
+  with_indexed_items:
+    - "{{ nextcloud_domains }}"
+  become_user: "{{ nextcloud_user }}"
+  tags:
+    - nextcloud
+
+#- name: Configure memcache local to APCu
+#  command: "php ./occ config:system:set memcache.local --value '\\OC\\Memcache\\APCu'"
+#  args:
+#    chdir: "{{ nextcloud_webroot }}"
+#  become_user: "{{ nextcloud_user }}"
+#  tags:
+#    - nextcloud
+
+- name: Fix right on config.php
+  file:
+    dest: "{{ nextcloud_home }}/config/config.php"
+    owner: "{{ nextcloud_user }}"
+    group: "{{ nextcloud_user }}"
+    mode: "0660"
+  tags:
+    - nextcloud

nextcloud/tasks/main.yml

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+---
+- name: Install dependencies
+  apt:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - bzip2
+    - php-ctype
+    - php-gd
+    - php-json
+    - php-xml
+    - php-mbstring
+    - php-zip
+    - php-pdo-mysql
+    - php-curl
+    - php-bz2
+    - php-intl
+    - php-mcrypt
+    - php-ldap
+    - php-imap
+    - php-gmp
+    - php-apcu
+    - php-redis
+    - python-mysqldb
+  tags:
+    - nextcloud
+
+- include: user.yml
+
+- include: archive.yml
+
+- include: vhost.yml
+
+- include: mysql.yml
+
+- include: config.yml

nextcloud/tasks/mysql.yml

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+---
+- name: Get actual Mysql password
+  shell: "grep password {{ nextcloud_home }}/.my.cnf | awk '{ print $3 }'"
+  register: nextcloud_db_pass_grep
+  check_mode: no
+  changed_when: False
+  failed_when: False
+  tags:
+    - nextcloud
+
+- name: Generate Mysql password
+  command: 'apg -n 1 -m 16 -M lcN'
+  register: nextcloud_db_pass_apg
+  check_mode: no
+  changed_when: False
+  tags:
+    - nextcloud
+
+- name: Set Mysql password
+  set_fact:
+    nextcloud_db_pass: "{{ nextcloud_db_pass_grep.stdout | default(nextcloud_db_pass_apg.stdout, True) }}"
+  tags:
+    - nextcloud
+
+- debug:
+    var: nextcloud_db_pass
+    verbosity: 1
+
+- name: Create Mysql database
+  mysql_db:
+    name: "{{ nextcloud_db_name }}"
+    config_file: "/root/.my.cnf"
+    state: present
+  tags:
+    - nextcloud
+
+- name: Create Mysql user
+  mysql_user:
+    name: "{{ nextcloud_db_user }}"
+    password: '{{ nextcloud_db_pass }}'
+    priv: "{{ nextcloud_db_name }}.*:ALL"
+    config_file: "/root/.my.cnf"
+    update_password: always
+    state: present
+  tags:
+    - nextcloud
+
+- name: Store credentials in my.cnf
+  ini_file:
+    dest: "{{ nextcloud_home }}/.my.cnf"
+    owner: "{{ nextcloud_user }}"
+    group: "{{ nextcloud_user }}"
+    mode: "0600"
+    section: client
+    option: "{{ item.option }}"
+    value:  "{{ item.value }}"
+  with_items:
+    - { option: "user",     value: "{{ nextcloud_db_user }}" }
+    - { option: "database", value: "{{ nextcloud_db_name }}" }
+    - { option: "password", value: "{{ nextcloud_db_pass }}" }
+  tags:
+    - nextcloud

nextcloud/tasks/user.yml

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+---
+- name: Create Nextcloud groups
+  group:
+    name: "{{ nextcloud_instance_name | mandatory }}"
+    state: present
+  tags:
+    - nextcloud
+
+- name: Create Nextcloud users
+  user:
+    name: "{{ nextcloud_user | mandatory }}"
+    group: "{{ nextcloud_user }}"
+    home: "{{ nextcloud_home | mandatory }}"
+    shell: '/bin/bash'
+    createhome: True
+    state: present
+  tags:
+  - nextcloud
+
+- name: Create top-level directories
+  file:
+    dest: "{{ item }}"
+    state: directory
+    mode: "0770"
+    owner: "{{ nextcloud_user }}"
+    group: "{{ nextcloud_user }}"
+  with_items:
+    - "{{ nextcloud_home }}/log"
+    - "{{ nextcloud_home }}/config"
+    - "{{ nextcloud_home }}/tmp"
+  tags:
+    - nextcloud

nextcloud/tasks/vhost.yml

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+---
+- block:
+  - name: Copy Nginx vhost
+    template:
+      src: nginx.conf.j2
+      dest: "/etc/nginx/sites-available/{{ nextcloud_instance_name }}.conf"
+      mode: "0640"
+    notify: reload nginx
+    tags:
+      - nextcloud
+
+  - name: Enable Nginx vhost
+    file:
+      src: "/etc/nginx/sites-available/{{ nextcloud_instance_name }}.conf"
+      dest: "/etc/nginx/sites-enabled/{{ nextcloud_instance_name }}.conf"
+      state: link
+    notify: reload nginx
+    tags:
+      - nextcloud
+  when: nextcloud_webserver == 'nginx'
+
+- name: Copy PHP-FPM pool
+  template:
+    src: php-fpm.conf.j2
+    dest: "/etc/php/7.0/fpm/pool.d/{{ nextcloud_instance_name }}.conf"
+    mode: "0640"
+  notify: restart php-fpm
+  tags:
+    - nextcloud

nextcloud/templates/nginx.conf.j2

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+server {
+    listen 80;
+    listen [::]:80;
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
+
+    server_name {{ nextcloud_domains | join(' ') }};
+
+    access_log {{ nextcloud_home }}/log/access.log;
+    error_log {{ nextcloud_home }}/log/error.log;
+
+    include /etc/nginx/ssl/{{ nextcloud_instance_name }}.conf;
+
+    add_header X-Content-Type-Options nosniff;
+    add_header X-XSS-Protection "1; mode=block";
+    add_header X-Robots-Tag none;
+    add_header X-Download-Options noopen;
+    add_header X-Permitted-Cross-Domain-Policies none;
+
+    root {{ nextcloud_webroot }};
+
+    include /etc/nginx/snippets/letsencrypt.conf;
+
+    location = /robots.txt {
+        allow all;
+        log_not_found off;
+        access_log off;
+    }
+
+    rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
+    rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json last;
+
+    location = /.well-known/carddav {
+      return 301 $scheme://$host/remote.php/dav;
+    }
+    location = /.well-known/caldav {
+      return 301 $scheme://$host/remote.php/dav;
+    }
+
+    # set max upload size
+    client_max_body_size 512M;
+    fastcgi_buffers 64 4K;
+
+    # Enable gzip but do not remove ETag headers
+    gzip on;
+    gzip_vary on;
+    gzip_comp_level 4;
+    gzip_min_length 256;
+    gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
+    gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;
+
+    location / {
+        rewrite ^ /index.php$uri;
+    }
+
+    location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)/ {
+        deny all;
+    }
+    location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) {
+        deny all;
+    }
+
+    location ~ ^/(?:index|remote|public|cron|core/ajax/update|status|ocs/v[12]|updater/.+|ocs-provider/.+)\.php(?:$|/) {
+        fastcgi_split_path_info ^(.+\.php)(/.*)$;
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+        fastcgi_param PATH_INFO $fastcgi_path_info;
+        fastcgi_param HTTPS on;
+        #Avoid sending the security headers twice
+        fastcgi_param modHeadersAvailable true;
+        fastcgi_param front_controller_active true;
+        fastcgi_pass unix:///var/run/php/php7.0-fpm-{{ nextcloud_instance_name }}.sock;
+        fastcgi_intercept_errors on;
+        fastcgi_request_buffering off;
+    }
+
+    location ~ ^/(?:updater|ocs-provider)(?:$|/) {
+        try_files $uri/ =404;
+        index index.php;
+    }
+
+    # Adding the cache control header for js and css files
+    # Make sure it is BELOW the PHP block
+    location ~ \.(?:css|js|woff|svg|gif)$ {
+        try_files $uri /index.php$uri$is_args$args;
+        add_header Cache-Control "public, max-age=15778463";
+        # Add headers to serve security related headers (It is intended to
+        # have those duplicated to the ones above)
+        # Before enabling Strict-Transport-Security headers please read into
+        # this topic first.
+        # add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;";
+        #
+        # WARNING: Only add the preload option once you read about
+        # the consequences in https://hstspreload.org/. This option
+        # will add the domain to a hardcoded list that is shipped
+        # in all major browsers and getting removed from this list
+        # could take several months.
+        add_header X-Content-Type-Options nosniff;
+        add_header X-XSS-Protection "1; mode=block";
+        add_header X-Robots-Tag none;
+        add_header X-Download-Options noopen;
+        add_header X-Permitted-Cross-Domain-Policies none;
+        # Optional: Don't log access to assets
+        access_log off;
+    }
+
+    location ~ \.(?:png|html|ttf|ico|jpg|jpeg)$ {
+        try_files $uri /index.php$uri$is_args$args;
+        # Optional: Don't log access to other assets
+        access_log off;
+    }
+}

nextcloud/templates/php-fpm.conf.j2

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+[{{ nextcloud_instance_name }}]
+user = {{ nextcloud_user }}
+group = {{ nextcloud_user }}
+listen = /run/php/php7.0-fpm-{{ nextcloud_instance_name }}.sock
+listen.owner = {{ nextcloud_user }}
+listen.group = {{ nextcloud_user }}
+
+pm = ondemand
+pm.max_children = 100
+pm.process_idle_timeout = 10s
+pm.status_path = /fpm_status
+
+request_terminate_timeout = 60s
+chdir = {{ nextcloud_webroot }}
+
+env[HOSTNAME] = $HOSTNAME
+env[PATH] = /usr/local/bin:/usr/bin:/bin
+env[TMP] = {{ nextcloud_home }}/tmp
+env[TMPDIR] = {{ nextcloud_home }}/tmp
+env[TEMP] = {{ nextcloud_home }}/tmp