8 files changed, 71 insertions, 0 deletions
diff --git a/roles/nginx/base/defaults/main.yml b/roles/nginx/base/defaults/main.yml
new file mode 100644
index 00000000..50920f20
--- /dev/null
+++ b/roles/nginx/base/defaults/main.yml
@@ -0,0 +1,10 @@
+---
+nginx_pkg_variant: nginx-light
+
+nginx_conf_d_files:
+  - connection-upgrade
+
+nginx_snippets:
+  - ssl
+  - hsts
+  - proxy-nobuff
diff --git a/roles/nginx/base/files/conf.d/connection-upgrade.conf b/roles/nginx/base/files/conf.d/connection-upgrade.conf
new file mode 100644
index 00000000..4153effe
--- /dev/null
+++ b/roles/nginx/base/files/conf.d/connection-upgrade.conf
@@ -0,0 +1,6 @@
+# used for websockets
+# set http_connection to either upgrade or close (as normal)
+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    ''      close;
+}
diff --git a/roles/nginx/base/files/snippets/hsts.conf b/roles/nginx/base/files/snippets/hsts.conf
new file mode 100644
index 00000000..4ca8396e
--- /dev/null
+++ b/roles/nginx/base/files/snippets/hsts.conf
@@ -0,0 +1 @@
+add_header Strict-Transport-Security max-age=15768000;
diff --git a/roles/nginx/base/files/snippets/proxy-nobuff.conf b/roles/nginx/base/files/snippets/proxy-nobuff.conf
new file mode 100644
index 00000000..b08de70c
--- /dev/null
+++ b/roles/nginx/base/files/snippets/proxy-nobuff.conf
@@ -0,0 +1,4 @@
+proxy_buffering off;
+proxy_ignore_headers "X-Accel-Buffering";
+proxy_request_buffering off;
+proxy_http_version 1.1;
diff --git a/roles/nginx/base/files/snippets/security-headers.conf b/roles/nginx/base/files/snippets/security-headers.conf
new file mode 100644
index 00000000..b94d479d
--- /dev/null
+++ b/roles/nginx/base/files/snippets/security-headers.conf
@@ -0,0 +1,4 @@
+add_header X-Frame-Options DENY;
+add_header X-Content-Type-Options nosniff;
+add_header X-XSS-Protection "1; mode=block";
+# add_header Content-Security-Policy "default-src 'none'; connect-src 'self'; img-src 'self'; script-src 'self'; style-src 'self'";
diff --git a/roles/nginx/base/files/snippets/ssl.conf b/roles/nginx/base/files/snippets/ssl.conf
new file mode 100644
index 00000000..d187a7c0
--- /dev/null
+++ b/roles/nginx/base/files/snippets/ssl.conf
@@ -0,0 +1,10 @@
+ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+ssl_ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AES:!ADH:!AECDH:!MD5;
+ssl_prefer_server_ciphers on;
+
+# openssl dhparam -out /etc/ssl/certs/dhparams.pem 2048
+ssl_dhparam /etc/ssl/dhparams.pem;
+
+ssl_session_cache shared:SSL:10m;
+ssl_session_timeout 10m;
+ssl_session_tickets off;
diff --git a/roles/nginx/base/handlers/main.yml b/roles/nginx/base/handlers/main.yml
new file mode 100644
index 00000000..6deed0cd
--- /dev/null
+++ b/roles/nginx/base/handlers/main.yml
@@ -0,0 +1,5 @@
+---
+- name: restart nginx
+  service:
+    name: nginx
+    state: restarted
diff --git a/roles/nginx/base/tasks/main.yml b/roles/nginx/base/tasks/main.yml
new file mode 100644
index 00000000..a975ce52
--- /dev/null
+++ b/roles/nginx/base/tasks/main.yml
@@ -0,0 +1,31 @@
+---
+- name: install nginx
+  apt:
+    name: "{{ nginx_pkg_variant }}"
+    state: present
+
+- name: remove nginx default config
+  file:
+    name: /etc/nginx/sites-enabled/default
+    state: absent
+  notify: restart nginx
+
+- name: install nginx config.d files
+  loop: "{{ nginx_conf_d_files }}"
+  copy:
+    src: "conf.d/{{ item }}.conf"
+    dest: /etc/nginx/conf.d/
+  notify: restart nginx
+
+- name: install nginx config snippets
+  loop: "{{ nginx_snippets }}"
+  copy:
+    src: "snippets/{{ item }}.conf"
+    dest: /etc/nginx/snippets/
+  notify: restart nginx
+
+- name: generate Diffie-Hellman parameters
+  openssl_dhparam:
+    path: /etc/ssl/dhparams.pem
+    size: 2048
+  notify: restart nginx