roles/nginx: Add role for nginx

This role installs nginx and provides a base/skeleton configuration
suitable for most deployments.

roles/nginx/tasks/main.yml

@@ -0,0 +1,81 @@
+- name: load distribution-specific values
+  include_vars: '{{ item }}'
+  with_first_found:
+  - '{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml'
+  - '{{ ansible_distribution }}.yml'
+  - '{{ ansible_os_family }}.yml'
+  - defaults.yml
+  tags:
+  - always
+
+- name: ensure nginx is installed
+  package:
+    name: '{{ nginx_packages|join(",") }}'
+    state: present
+  tags:
+  - install
+
+- name: ensure nginx pki directories exist
+  file:
+    path: '{{ item.path }}'
+    mode: '{{ item.mode }}'
+    state: directory
+  with_items:
+  - path: /etc/pki/nginx
+    mode: '0755'
+  - path: /etc/pki/nginx/private
+    mode: '0700'
+- name: ensure tls private key exists
+  copy:
+    src: '{{ item }}'
+    dest: '{{ nginx_ssl_certificate_key }}'
+    mode: '0400'
+    setype: cert_t
+  diff: false
+  with_fileglob:
+  - 'certs/nginx/{{ inventory_hostname }}/server.key'
+  notify: reload nginx
+- name: ensure tls certificate exists
+  copy:
+   src: '{{ item }}'
+   dest: '{{ nginx_ssl_certificate }}'
+   mode: '0644'
+   setype: cert_t
+  with_fileglob:
+  - 'certs/nginx/{{ inventory_hostname }}/server.cer'
+  notify: reload nginx
+- name: ensure tls ca certificate exists
+  copy:
+    src: '{{ item }}'
+    dest: '{{ nginx_ssl_ca_certificate }}'
+    mode: '0644'
+    setype: cert_t
+  when: nginx_ssl_ca_certificate is defined
+  with_fileglob:
+  - 'certs/nginx/{{ inventory_hostname }}/ca.crt'
+  notify: reload nginx
+
+- name: ensure nginx is configured
+  template:
+    src: nginx.conf.j2
+    dest: /etc/nginx/nginx.conf
+    mode: '0644'
+  notify: reload nginx
+  tags:
+  - nginx-config
+
+- name: ensure nginx is allowed in the firewall
+  firewalld:
+    service: '{{ item }}'
+    state: enabled
+    permanent: no
+    immediate: yes
+  with_items:
+  - http
+  - https
+  notify: save firewalld configuration
+
+- name: ensure nginx starts at boot
+  service:
+    name: nginx
+    enabled: yes