Fix redis installation in debian jessie

ee/cli/plugins/stack.py

@@ -1817,24 +1817,20 @@ class EEStackController(CementBaseController):
                     if EEVariables.ee_ram < 512:
                         Log.debug(self, "Setting maxmemory variable to {0} in redis.conf"
                                             .format(int(EEVariables.ee_ram*1024*1024*0.1)))
-                        EEFileUtils.searchreplace(self, "/etc/redis/redis.conf",
-                                              "# maxmemory <bytes>",
-                                              "maxmemory {0}".format(int(EEVariables.ee_ram*1024*1024*0.1)))
+                        EEShellExec.cmd_exec(self, "sed -i 's/# maxmemory <bytes>/maxmemory {0}/' /etc/redis/redis.conf"
+                                             .format(int(EEVariables.ee_ram*1024*1024*0.1)))
                         Log.debug(self, "Setting maxmemory-policy variable to volatile-lru in redis.conf")
-                        EEFileUtils.searchreplace(self, "/etc/redis/redis.conf",
-                                              "# maxmemory-policy volatile-lru",
-                                              "maxmemory-policy volatile-lru")
+                        EEShellExec.cmd_exec(self, "sed -i 's/# maxmemory-policy.*/maxmemory-policy volatile-lru/' "
+                                                   "/etc/redis/redis.conf")
                         EEService.restart_service(self, 'redis-server')
                     else:
                         Log.debug(self, "Setting maxmemory variable to {0} in redis.conf"
                                             .format(int(EEVariables.ee_ram*1024*1024*0.2)))
-                        EEFileUtils.searchreplace(self, "/etc/redis/redis.conf",
-                                              "# maxmemory <bytes>",
-                                              "maxmemory {0}".format(int(EEVariables.ee_ram*1024*1024*0.2)))
+                        EEShellExec.cmd_exec(self, "sed -i 's/# maxmemory <bytes>/maxmemory {0}/' /etc/redis/redis.conf"
+                                             .format(int(EEVariables.ee_ram*1024*1024*0.2)))
                         Log.debug(self, "Setting maxmemory-policy variable to volatile-lru in redis.conf")
-                        EEFileUtils.searchreplace(self, "/etc/redis/redis.conf",
-                                              "# maxmemory-policy volatile-lru",
-                                              "maxmemory-policy volatile-lru")
+                        EEShellExec.cmd_exec(self, "sed -i 's/# maxmemory-policy.*/maxmemory-policy volatile-lru/' "
+                                                   "/etc/redis/redis.conf")
                         EEService.restart_service(self, 'redis-server')
             if disp_msg:
                 if len(self.msg):