diff --git a/devops-service/app/api2/handlers/server.rb b/devops-service/app/api2/handlers/server.rb
index a43ec4b..18b2e35 100644
--- a/devops-service/app/api2/handlers/server.rb
+++ b/devops-service/app/api2/handlers/server.rb
@@ -186,6 +186,13 @@ module Devops
           return s, rl || d.run_list, t
         end
 
+        def unbootstrap_server id
+          s = get_server_by_key(id, parser.instance_key)
+          ### Authorization
+          Devops::Db.connector.check_project_auth s.project, s.deploy_env, parser.current_user
+          Devops::Executor::ServerExecutor.new(s, "").unbootstrap
+        end
+
         def add_server
           body = parser.add_server
           project = body["project"]
diff --git a/devops-service/app/api2/routes/server.rb b/devops-service/app/api2/routes/server.rb
index d50ba0e..09906f4 100644
--- a/devops-service/app/api2/routes/server.rb
+++ b/devops-service/app/api2/routes/server.rb
@@ -279,6 +279,25 @@ module Devops
             end
           end
 
+          # Unbootstrap 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
+          app.post_with_headers "/server/:id/unbootstrap", :headers => [:accept, :content_type] do |id|
+            check_privileges("server", "w")
+            info = Devops::API2_0::Handler::Server.new(request).unbootstrap_server(id)
+            create_response("Unbootstrap", info)
+          end
+
           # Add external server to devops
           #
           # * *Request*
diff --git a/devops-service/lib/executors/server_executor.rb b/devops-service/lib/executors/server_executor.rb
index 7c502c9..17189fe 100644
--- a/devops-service/lib/executors/server_executor.rb
+++ b/devops-service/lib/executors/server_executor.rb
@@ -281,17 +281,24 @@ module Devops
         k = Devops::Db.connector.key(@server.key)
         cert_path = k.path
         i = 0
-        begin
-          r = `ssh -i #{cert_path} -q #{@server.remote_user}@#{@server.private_ip} rm -Rf /etc/chef`
+        res = begin
+          new_name = "/etc/chef.backup_#{Time.now.strftime("%d-%m-%Y_%H.%M.%S")}"
+#          r = `ssh -i #{cert_path} -q #{@server.remote_user}@#{@server.private_ip} rm -Rf /etc/chef`
+          cmd = "ssh -i #{cert_path} -q #{@server.remote_user}@#{@server.private_ip} mv /etc/chef #{new_name}"
+          DevopsLogger.logger.info("Trying to run command '#{cmd}'")
+          r = `#{cmd}`
           raise(r) unless $?.success?
+          r = delete_from_chef_server(@server.chef_node_name)
+          r[:server] = "'/etc/chef' renamed to '#{new_name}'"
+          r
         rescue => e
           DevopsLogger.logger.error "Unbootstrap error: " + e.message
           i += 1
           sleep(1)
           retry unless i == 5
-          return e.message
+          return {error: e.message}
         end
-        nil
+        res
       end
 
       def deploy_server_with_tags tags, deploy_info