diff --git a/devops-client/lib/devops-client/handler/server.rb b/devops-client/lib/devops-client/handler/server.rb
index 1fb6e89..37cf7e0 100644
--- a/devops-client/lib/devops-client/handler/server.rb
+++ b/devops-client/lib/devops-client/handler/server.rb
@@ -40,6 +40,12 @@ class Server < Handler
     when "unpause"
       self.options = @options_parser.unpause_options
       unpause_handler @options_parser.args
+    when "reserve"
+      self.options = @options_parser.reserve_options
+      reserve_handler @options_parser.args
+    when "unreserve"
+      self.options = @options_parser.unreserve_options
+      unreserve_handler @options_parser.args
     when "add"
       self.options = @options_parser.add_options
       add_static_handler @options_parser.args
@@ -152,7 +158,7 @@ class Server < Handler
       @options_parser.invalid_pause_command
       abort(r)
     end
-    post "/server/#{args[2]}/pause"
+    post "/server/#{args[2]}/pause", options
   end
 
   def unpause_handler args
@@ -161,7 +167,25 @@ class Server < Handler
       @options_parser.invalid_unpause_command
       abort(r)
     end
-    post "/server/#{args[2]}/unpause"
+    post "/server/#{args[2]}/unpause", options
+  end
+
+  def reserve_handler args
+    r = inspect_parameters @options_parser.reserve_params, args[2]
+    unless r.nil?
+      @options_parser.invalid_reserve_command
+      abort(r)
+    end
+    post "/server/#{args[2]}/reserve", options
+  end
+
+  def unreserve_handler args
+    r = inspect_parameters @options_parser.unreserve_params, args[2]
+    unless r.nil?
+      @options_parser.invalid_unreserve_command
+      abort(r)
+    end
+    post "/server/#{args[2]}/unreserve", options
   end
 
 end
diff --git a/devops-client/lib/devops-client/options/server_options.rb b/devops-client/lib/devops-client/options/server_options.rb
index ee6ce09..b18aee8 100644
--- a/devops-client/lib/devops-client/options/server_options.rb
+++ b/devops-client/lib/devops-client/options/server_options.rb
@@ -2,7 +2,7 @@ require "devops-client/options/common_options"
 
 class ServerOptions < CommonOptions
 
-  commands :add, :bootstrap, :create, :delete, :list, :pause, :show, :unpause # :sync,
+  commands :add, :bootstrap, :create, :delete, :list, :pause, :reserve, :show, :unpause, :unreserve # :sync,
 
   def initialize args, def_options
     super(args, def_options)
@@ -15,6 +15,8 @@ class ServerOptions < CommonOptions
     self.show_params = node_params
     self.pause_params = node_params
     self.unpause_params = node_params
+    self.reserve_params = node_params
+    self.unreserve_params = node_params
     self.bootstrap_params = ["INSTANCE_ID"]
     self.add_params = ["PROJECT_ID", "DEPLOY_ENV", "IP", "SSH_USER", "KEY_ID"]
   end
@@ -34,6 +36,46 @@ class ServerOptions < CommonOptions
     end
   end
 
+  def pause_options
+    options do |opts, options|
+      opts.banner << self.delete_banner
+      options[:key] = "node"
+      opts.on('--instance', "Pause server by instance id") do
+        options[:key] = "instance"
+      end
+    end
+  end
+
+  def unpause_options
+    options do |opts, options|
+      opts.banner << self.delete_banner
+      options[:key] = "node"
+      opts.on('--instance', "Unpause server by instance id") do
+        options[:key] = "instance"
+      end
+    end
+  end
+
+  def reserve_options
+    options do |opts, options|
+      opts.banner << self.delete_banner
+      options[:key] = "node"
+      opts.on('--instance', "Reserve server by instance id") do
+        options[:key] = "instance"
+      end
+    end
+  end
+
+  def unreserve_options
+    options do |opts, options|
+      opts.banner << self.delete_banner
+      options[:key] = "node"
+      opts.on('--instance', "Unreserve server by instance id") do
+        options[:key] = "instance"
+      end
+    end
+  end
+
   def create_options
     options do |opts, options|
       opts.banner << self.create_banner
diff --git a/devops-client/lib/devops-client/version.rb b/devops-client/lib/devops-client/version.rb
index d01f705..ab0ef1e 100644
--- a/devops-client/lib/devops-client/version.rb
+++ b/devops-client/lib/devops-client/version.rb
@@ -1,3 +1,3 @@
 module DevopsClient
-  VERSION = "2.1.29"
+  VERSION = "2.1.30"
 end
diff --git a/devops-service/db/mongo/models/server.rb b/devops-service/db/mongo/models/server.rb
index a8ca217..ad55a4d 100644
--- a/devops-service/db/mongo/models/server.rb
+++ b/devops-service/db/mongo/models/server.rb
@@ -3,7 +3,7 @@ require "db/mongo/models/mongo_model"
 
 class Server < MongoModel
 
-  attr_accessor :provider, :chef_node_name, :id, :remote_user, :project, :deploy_env, :private_ip, :public_ip, :created_at, :without_bootstrap, :created_by
+  attr_accessor :provider, :chef_node_name, :id, :remote_user, :project, :deploy_env, :private_ip, :public_ip, :created_at, :without_bootstrap, :created_by, :reserved_by
   attr_accessor :options, :static, :key
 
   types :id => {:type => String, :empty => false},
@@ -15,7 +15,8 @@ class Server < MongoModel
         :public_ip => {:type => String, :empty => true, :nil => true},
         :key => {:type => String, :empty => false},
         :created_by => {:type => String, :empty => false},
-        :chef_node_name => {:type => String, :empty => true}
+        :chef_node_name => {:type => String, :empty => true},
+        :reserved_by => {:type => String, :empty => true}
 
   def initialize
     self.static = false
@@ -38,7 +39,8 @@ class Server < MongoModel
       "created_at" => self.created_at,
       "created_by" => self.created_by,
       "static" => self.static,
-      "key" => self.key
+      "key" => self.key,
+      "reserved_by" => self.reserved_by
     }
   end
 
@@ -63,6 +65,7 @@ class Server < MongoModel
     server.created_by = s["created_by"]
     server.static = s["static"] || false
     server.key = s["key"]
+    server.reserved_by = s["reserved_by"]
     server
   end
 
diff --git a/devops-service/routes/v2.0/deploy.rb b/devops-service/routes/v2.0/deploy.rb
index b9ea528..30dd8b4 100644
--- a/devops-service/routes/v2.0/deploy.rb
+++ b/devops-service/routes/v2.0/deploy.rb
@@ -19,7 +19,7 @@ module Version2_0
       statistic
     end
 
-    # Run chef-client on some instances
+    # Run chef-client on reserved server
     #
     # * *Request*
     #   - method : POST
@@ -40,7 +40,8 @@ module Version2_0
       tags = check_array(r["tags"], "Parameter 'tags' should be an array of strings", String, true) || []
 
       servers = BaseRoutes.mongo.servers_by_names(names)
-      halt(404, "No servers found for names '#{names.join("', '")}'") if servers.empty?
+      servers.delete_if{|s| s.reserved_by.nil?}
+      halt(404, "No reserved servers found for names '#{names.join("', '")}'") if servers.empty?
       keys = {}
       servers.sort_by!{|s| names.index(s.chef_node_name)}
       stream() do |out|
diff --git a/devops-service/routes/v2.0/project.rb b/devops-service/routes/v2.0/project.rb
index cfdec35..946c524 100644
--- a/devops-service/routes/v2.0/project.rb
+++ b/devops-service/routes/v2.0/project.rb
@@ -349,7 +349,7 @@ module Version2_0
       create_response(info)
     end
 
-    # Run chef-client on project servers
+    # Run chef-client on reserved project servers
     #
     # * *Request*
     #   - method : POST
@@ -372,6 +372,7 @@ module Version2_0
       check_array(obj["servers"], "Parameter 'servers' should be a not empty array of strings", String, true)
       project = BaseRoutes.mongo.project(params[:id])
       servers = BaseRoutes.mongo.servers(params[:id], obj["deploy_env"])
+      servers.delete_if{|s| s.reserved_by.nil?}
       unless obj["servers"].nil?
         logger.debug "Servers in params: #{obj["servers"].inspect}\nServers: #{servers.map{|s| s.chef_node_name}.inspect}"
         servers.select!{|ps| obj["servers"].include?(ps.chef_node_name)}
@@ -379,7 +380,7 @@ module Version2_0
       keys = {}
       stream() do |out|
         begin
-          out << (servers.empty? ? "No servers to deploy\n" : "Deploy servers: '#{servers.map{|s| s.chef_node_name}.join("', '")}'\n")
+          out << (servers.empty? ? "No reserved servers to deploy\n" : "Deploy servers: '#{servers.map{|s| s.chef_node_name}.join("', '")}'\n")
           status = []
           servers.each do |s|
 
diff --git a/devops-service/routes/v2.0/server.rb b/devops-service/routes/v2.0/server.rb
index 3414bad..4e2531e 100644
--- a/devops-service/routes/v2.0/server.rb
+++ b/devops-service/routes/v2.0/server.rb
@@ -47,9 +47,11 @@ module Version2_0
       check_privileges("server")
     end
 
-    before %r{\A/server/[\w]+/(un)?pause\z} do
+    before %r{\A/server/[\w]+/(pause|unpouse|reserve|unreserve)\z} do
       check_headers :accept, :content_type
       check_privileges("server", "w")
+      body = create_object_from_json_body(Hash, true)
+      @key = (body.nil? ? nil : body["key"])
     end
 
     before "/servers/:provider" do
@@ -146,6 +148,8 @@ module Version2_0
     #   - method : GET
     #   - headers :
     #     - Accept: application/json
+    #   - parameters:
+    #     key=instance -> search server by instance_id rather then chef_node_name
     #
     # * *Returns* :
     #   [
@@ -154,7 +158,7 @@ module Version2_0
     #     }
     #   ]
     get "/server/:name" do
-      json BaseRoutes.mongo.server_by_chef_node_name(params[:name])
+      json get_server(params[:name], params[:key]).to_hash
     end
 
     # Delete devops server
@@ -164,18 +168,17 @@ module Version2_0
     #   - headers :
     #     - Accept: application/json
     #     - Content-Type: application/json
-    #   - body
-    #   {
-    #     "key": "instance" -> if key=instance, then :name - instance id, if key=null, then name - node name
-    #   }
+    #   - body :
+    #     {
+    #       "key": "instance", -> search server by instance_id rather then chef_node_name
+    #     }
     #
     # * *Returns* :
     #   200 - Deleted
     delete "/server/:id" do
       body = create_object_from_json_body(Hash, true)
       key = (body.nil? ? nil : body["key"])
-      id = params[:id]
-      s = (key == "instance" ? BaseRoutes.mongo.server_by_instance_id(id) : BaseRoutes.mongo.server_by_chef_node_name(id))
+      s = get_server(params[:id], key)
       ### Authorization
       BaseRoutes.mongo.check_project_auth s.project, s.deploy_env, request.env['REMOTE_USER']
       info, r = delete_server(s, BaseRoutes.mongo, logger)
@@ -271,11 +274,16 @@ module Version2_0
     #   - method : POST
     #   - headers :
     #     - Accept: application/json
+    #     - Content-Type: application/json
+    #   - body :
+    #     {
+    #       "key": "instance", -> search server by instance_id rather then chef_node_name
+    #     }
     #
     # * *Returns* :
     #   200 - Paused
     post "/server/:node_name/pause" do
-      s = BaseRoutes.mongo.server_by_chef_node_name params[:node_name]
+      s = get_server(params[:node_name], @key)
       ## Authorization
       BaseRoutes.mongo.check_project_auth s.project, s.deploy_env, request.env['REMOTE_USER']
       provider = ::Version2_0::Provider::ProviderFactory.get(s.provider)
@@ -293,11 +301,16 @@ module Version2_0
     #   - method : POST
     #   - headers :
     #     - Accept: application/json
+    #     - Content-Type: application/json
+    #   - body :
+    #     {
+    #       "key": "instance", -> search server by instance_id rather then chef_node_name
+    #     }
     #
     # * *Returns* :
     #   200 - Unpaused
     post "/server/:node_name/unpause" do
-      s = BaseRoutes.mongo.server_by_chef_node_name params[:node_name]
+      s = get_server(params[:node_name], @key)
        ## Authorization
       BaseRoutes.mongo.check_project_auth s.project, s.deploy_env, request.env['REMOTE_USER']
       provider = ::Version2_0::Provider::ProviderFactory.get(s.provider)
@@ -309,6 +322,53 @@ module Version2_0
       end
     end
 
+    # Reserve devops server
+    #
+    # * *Request*
+    #   - method : POST
+    #   - headers :
+    #     - Accept: application/json
+    #     - Content-Type: application/json
+    #   - body :
+    #     {
+    #       "key": "instance", -> search server by instance_id rather then chef_node_name
+    #     }
+    #
+    # * *Returns* :
+    #   200 - Reserved
+    post "/server/:node_name/reserve" do
+      s = get_server(params[:node_name], params[:key])
+      user = request.env['REMOTE_USER']
+      BaseRoutes.mongo.check_project_auth s.project, s.deploy_env, user
+      halt_response(400, "Server '#{params[:node_name]}' already reserved") unless s.reserved_by.nil?
+      s.reserved_by = user
+      BaseRoutes.mongo.server_update(s)
+      create_response("Server '#{params[:node_name]}' has been reserved")
+    end
+
+    # Unreserve devops server
+    #
+    # * *Request*
+    #   - method : POST
+    #   - headers :
+    #     - Accept: application/json
+    #     - Content-Type: application/json
+    #   - body :
+    #     {
+    #       "key": "instance", -> search server by instance_id rather then chef_node_name
+    #     }
+    #
+    # * *Returns* :
+    #   200 - Unreserved
+    post "/server/:node_name/unreserve" do
+      s = get_server(params[:node_name], params[:key])
+      BaseRoutes.mongo.check_project_auth s.project, s.deploy_env, request.env['REMOTE_USER']
+      halt_response(400, "Server '#{params[:node_name]}' is not reserved") if s.reserved_by.nil?
+      s.reserved_by = nil
+      BaseRoutes.mongo.server_update(s)
+      create_response("Server '#{params[:node_name]}' has been unreserved")
+    end
+
     # Bootstrap devops server
     #
     # * *Request*
@@ -416,6 +476,10 @@ module Version2_0
     end
 
   private
+    def get_server id, key
+      key == "instance" ? BaseRoutes.mongo.server_by_instance_id(id) : BaseRoutes.mongo.server_by_chef_node_name(id)
+    end
+
     def roll_back s, provider
       str = ""
       unless s.id.nil?