Move docker resource limit settings from server to agent (#3174)

so you can set it per agent and not per server

server/config.go

@@ -66,7 +66,6 @@ var Config = struct {
 		DefaultCancelPreviousPipelineEvents []model.WebhookEvent
 		DefaultClonePlugin                  string
 		TrustedClonePlugins                 []string
-		Limits                              model.ResourceLimit
 		Volumes                             []string
 		Networks                            []string
 		PrivilegedPlugins                   []string

server/model/resource_limit.go

@@ -1,25 +0,0 @@
-// Copyright 2018 Drone.IO Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package model
-
-// ResourceLimit is the resource limit to set on pipeline steps.
-type ResourceLimit struct {
-	MemSwapLimit int64
-	MemLimit     int64
-	ShmSize      int64
-	CPUQuota     int64
-	CPUShares    int64
-	CPUSet       string
-}

server/pipeline/stepbuilder/stepBuilder.go

@@ -270,7 +270,6 @@ func (b *StepBuilder) toInternalRepresentation(parsed *yaml_types.Workflow, envi
 		compiler.WithEnviron(b.Envs),
 		// TODO: server deps should be moved into StepBuilder fields and set on StepBuilder creation
 		compiler.WithEscalated(server.Config.Pipeline.PrivilegedPlugins...),
-		compiler.WithResourceLimit(server.Config.Pipeline.Limits.MemSwapLimit, server.Config.Pipeline.Limits.MemLimit, server.Config.Pipeline.Limits.ShmSize, server.Config.Pipeline.Limits.CPUQuota, server.Config.Pipeline.Limits.CPUShares, server.Config.Pipeline.Limits.CPUSet),
 		compiler.WithVolumes(server.Config.Pipeline.Volumes...),
 		compiler.WithNetworks(server.Config.Pipeline.Networks...),
 		compiler.WithLocal(false),