Add memcache as session provider

conf/defaults.ini

@@ -67,7 +67,7 @@ path = grafana.db
 
 #################################### Session ####################################
 [session]
-# Either "memory", "file", "redis", "mysql", "postgres", default is "file"
+# Either "memory", "file", "redis", "mysql", "postgres", "memcache", default is "file"
 provider = file
 
 # Provider config options
@@ -76,6 +76,8 @@ provider = file
 # redis: config like redis server e.g. `addr=127.0.0.1:6379,pool_size=100,db=grafana`
 # postgres: user=a password=b host=localhost port=5432 dbname=c sslmode=disable
 # mysql: go-sql-driver/mysql dsn config string, e.g. `user:password@tcp(127.0.0.1:3306)/database_name`
+# memcache: 127.0.0.1:11211
+
 
 provider_config = sessions
 

docs/sources/installation/configuration.md

@@ -355,7 +355,7 @@ Set to `true` to enable auto sign up of users who do not exist in Grafana DB. De
 
 ### provider
 
-Valid values are `memory`, `file`, `mysql`, `postgres`. Default is `file`.
+Valid values are `memory`, `file`, `mysql`, `postgres`, `memcache`. Default is `file`.
 
 ### provider_config
 
@@ -365,6 +365,7 @@ session provider you have configured.
 - **file:** session file path, e.g. `data/sessions`
 - **mysql:** go-sql-driver/mysql dsn config string, e.g. `user:password@tcp(127.0.0.1:3306)/database_name`
 - **postgres:** ex:  user=a password=b host=localhost port=5432 dbname=c sslmode=disable
+- **memcache:** ex:  127.0.0.1:11211
 
 If you use MySQL or Postgres as the session store you need to create the
 session table manually.

pkg/middleware/session.go

@@ -8,6 +8,7 @@ import (
 	_ "github.com/macaron-contrib/session/mysql"
 	_ "github.com/macaron-contrib/session/postgres"
 	_ "github.com/macaron-contrib/session/redis"
+	_ "github.com/macaron-contrib/session/memcache"
 )
 
 const (

pkg/setting/setting.go

@@ -473,7 +473,7 @@ func NewConfigContext(args *CommandLineArgs) error {
 func readSessionConfig() {
 	sec := Cfg.Section("session")
 	SessionOptions = session.Options{}
-	SessionOptions.Provider = sec.Key("provider").In("memory", []string{"memory", "file", "redis", "mysql", "postgres"})
+	SessionOptions.Provider = sec.Key("provider").In("memory", []string{"memory", "file", "redis", "mysql", "postgres", "memcache"})
 	SessionOptions.ProviderConfig = strings.Trim(sec.Key("provider_config").String(), "\" ")
 	SessionOptions.CookieName = sec.Key("cookie_name").MustString("grafana_sess")
 	SessionOptions.CookiePath = AppSubUrl