Add initial Vagrant/Saltstack setup

This commit adds an initial Vagrant and Saltstack setup that reuses the
same configuration as that of the gva repository. The LDAP server itself
is not configured yet.

salt/roots/nginx/init.sls

@@ -0,0 +1,38 @@
+nginx:
+  pkg:
+    - installed
+  service.running:
+    - enable: True
+    - require:
+      - pkg: nginx
+
+nginx-common:
+  pkg.installed
+
+/etc/nginx/nginx.conf:
+  file.managed:
+    - source: salt://nginx/nginx.conf
+    - user: root
+    - group: root
+    - mode: 0644
+    - require:
+      - pkg: nginx-common
+    - watch_in:
+      - service: nginx
+
+{% set nginx_ssl_keydir = salt['pillar.get']('nginx:sslkeydir', '/etc/nginx/ssl/private') %}
+{% set nginx_ssl_certdir = salt['pillar.get']('nginx:sslcertdir', '/etc/nginx/ssl/certs') %}
+
+{{ nginx_ssl_certdir }}:
+  file.directory:
+    - user: root
+    - group: root
+    - mode: 0755
+    - makedirs: True
+
+{{ nginx_ssl_keydir }}:
+  file.directory:
+    - user: root
+    - group: root
+    - mode: 0750
+    - makedirs: True

salt/roots/nginx/nginx.conf

@@ -0,0 +1,49 @@
+user www-data;
+worker_processes 4;
+pid /run/nginx.pid;
+
+events {
+	worker_connections 768;
+	# multi_accept on;
+}
+
+http {
+
+	##
+	# Basic Settings
+	##
+
+	sendfile on;
+	tcp_nopush on;
+	tcp_nodelay on;
+	keepalive_timeout 65;
+	types_hash_max_size 2048;
+	# server_tokens off;
+
+	server_names_hash_bucket_size 64;
+	# server_name_in_redirect off;
+
+	include /etc/nginx/mime.types;
+	default_type application/octet-stream;
+
+	##
+	# Logging Settings
+	##
+
+	access_log /var/log/nginx/access.log;
+	error_log /var/log/nginx/error.log;
+
+	##
+	# Gzip Settings
+	##
+
+	gzip on;
+	gzip_disable "msie6";
+
+	##
+	# Virtual Host Configs
+	##
+
+	include /etc/nginx/conf.d/*.conf;
+	include /etc/nginx/sites-enabled/*;
+}