Added ee stack update command

ee/cli/plugins/site.py

@@ -751,6 +751,8 @@ class EESiteUpdateController(CementBaseController):
                 dict(help="update to wpfc cache", action='store_true')),
             (['--wpsc'],
                 dict(help="update to wpsc cache", action='store_true')),
+            (['--redis'],
+                dict(help="update to redis cache", action='store_true')),
             (['--hhvm'],
                 dict(help='Use HHVM for site',
                      action='store' or 'store_const',
@@ -781,7 +783,7 @@ class EESiteUpdateController(CementBaseController):
             if not (pargs.php or
                     pargs.mysql or pargs.wp or pargs.wpsubdir or
                     pargs.wpsubdomain or pargs.w3tc or pargs.wpfc or
-                    pargs.wpsc or pargs.hhvm or pargs.pagespeed):
+                    pargs.wpsc or pargs.hhvm or pargs.pagespeed or pargs.redis):
                 Log.error(self, "Please provide options to update sites.")
 
         if pargs.all:
@@ -897,7 +899,7 @@ class EESiteUpdateController(CementBaseController):
         if stype == 'php':
             data = dict(site_name=ee_domain, www_domain=ee_www_domain,
                         static=False,  basic=True, wp=False, w3tc=False,
-                        wpfc=False, wpsc=False, multisite=False,
+                        wpfc=False, wpsc=False, redis=False, multisite=False,
                         wpsubdir=False, webroot=ee_site_webroot,
                         currsitetype=oldsitetype, currcachetype=oldcachetype)
 
@@ -905,7 +907,7 @@ class EESiteUpdateController(CementBaseController):
 
             data = dict(site_name=ee_domain, www_domain=ee_www_domain,
                         static=False,  basic=True, wp=False, w3tc=False,
-                        wpfc=False, wpsc=False, multisite=False,
+                        wpfc=False, wpsc=False, redis=False, multisite=False,
                         wpsubdir=False, webroot=ee_site_webroot,
                         ee_db_name='', ee_db_user='', ee_db_pass='',
                         ee_db_host='',
@@ -1068,6 +1070,21 @@ class EESiteUpdateController(CementBaseController):
                     data['pagespeed'] = True
                     pagespeed = True
 
+        if data['currcachetype'] != 'redis' and pargs.redis:
+            if (not pargs.experimental):
+                Log.info(self, "Redis is experimental feature and it may not"
+                         " work with all plugins of your site.\nYou can "
+                         "disable it by changing cache type later.\nDo you wish"
+                         " to enable Redis now for {0}?".format(ee_domain))
+
+                # Check prompt
+                check_prompt = input("Type \"y\" to continue [n]:")
+                if check_prompt != "Y" and check_prompt != "y":
+                    Log.info(self, "Not using Redis for site")
+                    data['redis'] = False
+                    data['basic'] = True
+                    cache = 'basic'
+
         if ((hhvm is old_hhvm) and (pagespeed is old_pagespeed) and
             (stype == oldsitetype and cache == oldcachetype)):
             return 1
@@ -1206,6 +1223,16 @@ class EESiteUpdateController(CementBaseController):
                              " `tail /var/log/ee/ee.log` & Try Again!!!")
                     return 1
 
+            if oldcachetype == 'redis' and not data['rediss']:
+                try:
+                    uninstallwp_plugin(self, 'redis-cache', data)
+                except SiteError as e:
+                    Log.debug(self, str(e))
+                    Log.info(self, Log.FAIL + "Update site failed."
+                             "Check logs for reason"
+                             " `tail /var/log/ee/ee.log` & Try Again!!!")
+                    return 1
+
         if (oldcachetype != 'w3tc' or oldcachetype != 'wpfc') and (data['w3tc']
            or data['wpfc']):
             try:
@@ -1226,6 +1253,17 @@ class EESiteUpdateController(CementBaseController):
                          "Check logs for reason "
                          "`tail /var/log/ee/ee.log` & Try Again!!!")
                 return 1
+
+        if oldcachetype != 'redis' and data['redis']:
+            try:
+                installwp_plugin(self, 'redis-cache', data)
+            except SiteError as e:
+                Log.debug(self, str(e))
+                Log.info(self, Log.FAIL + "Update site failed."
+                         "Check logs for reason "
+                         "`tail /var/log/ee/ee.log` & Try Again!!!")
+                return 1
+
         # Service Nginx Reload
         if not EEService.reload_service(self, 'nginx'):
             Log.error(self, "service nginx reload failed. "

ee/cli/plugins/stack.py

@@ -522,6 +522,19 @@ class EEStackController(CementBaseController):
                         Log.error(self, "Failed to reload Nginx, please check "
                                         "output of `nginx -t`")
 
+            if set(EEVariables.ee_redis).issubset(set(apt_packages)):
+                if os.path.isfile("/etc/nginx/nginx.conf") and (not
+                   os.path.isfile("/etc/nginx/common/redis.conf")):
+
+                    data = dict()
+                    Log.debug(self, 'Writting the nginx configuration to '
+                              'file /etc/nginx/common/redis.conf')
+                    ee_nginx = open('/etc/nginx/common/php-hhvm.conf',
+                                    encoding='utf-8', mode='w')
+                    self.app.render((data), 'redis.mustache',
+                                    out=ee_nginx)
+                    ee_nginx.close()
+
             if set(EEVariables.ee_php).issubset(set(apt_packages)):
                 # Create log directories
                 if not os.path.exists('/var/log/php5/'):

ee/cli/templates/redis.mustache

@@ -0,0 +1,57 @@
+# Redis NGINX CONFIGURATION
+# DO NOT MODIFY, ALL CHANGES LOST AFTER UPDATE EasyEngine (ee)
+set $skip_cache 0;
+# POST requests and URL with a query string should always go to php
+if ($request_method = POST) {
+  set $skip_cache 0;
+}
+if ($query_string != "") {
+  set $skip_cache 1;
+}
+# Don't cache URL containing the following segments
+if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|wp-.*.php|index.php|/feed/|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
+  set $skip_cache 1;
+}
+# Don't use the cache for logged in users or recent commenter
+if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
+  set $skip_cache 1;
+}
+# Use cached or actual file if they exists, Otherwise pass request to WordPress
+location / {
+  try_files $uri $uri/ /index.php?$args;
+}
+
+location /redis-fetch {
+    internal  ;
+    set  $redis_key $args;
+    redis_pass  redis;
+}
+location /redis-store {
+    internal  ;
+    set_unescape_uri $key $arg_key ;
+    redis2_query  set $key $echo_request_body;
+    redis2_query expire $key 6h;
+    redis2_pass  redis;
+
+}
+
+location ~ \.php$ {
+  set $key "nginx-cache:$scheme$request_method$host$request_uri";
+  try_files $uri =404;
+
+  srcache_fetch_skip $skip_cache;
+  srcache_store_skip $skip_cache;
+
+  srcache_response_cache_control off;
+
+  set_escape_uri $escaped_key $key;
+
+  srcache_fetch GET /redis-fetch $key;
+  srcache_store PUT /redis-store key=$escaped_key;
+
+  add_header X-Cache $srcache_fetch_status;
+  add_header X-Cache-2 $srcache_store_status;
+
+  include fastcgi_params;
+  fastcgi_pass php;
+}