Move docker specific volume & network settings into backend code (#1956)

... if we want to make them be changed ... it should be an
agent-backend-option

pipeline/backend/docker/docker.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"io"
 	"os"
+	"runtime"
 	"strings"
 
 	"github.com/docker/docker/api/types"
@@ -41,6 +42,12 @@ type docker struct {
 	volumes    []string
 }
 
+const (
+	networkDriverNAT    = "nat"
+	networkDriverBridge = "bridge"
+	volumeDriver        = "local"
+)
+
 // New returns a new Docker Engine.
 func New() backend.Engine {
 	return &docker{
@@ -97,21 +104,22 @@ func (e *docker) Load(ctx context.Context) error {
 func (e *docker) Setup(_ context.Context, conf *backend.Config) error {
 	for _, vol := range conf.Volumes {
 		_, err := e.client.VolumeCreate(noContext, volume.VolumeCreateBody{
-			Name:       vol.Name,
-			Driver:     vol.Driver,
-			DriverOpts: vol.DriverOpts,
-			// Labels:     defaultLabels,
+			Name:   vol.Name,
+			Driver: volumeDriver,
 		})
 		if err != nil {
 			return err
 		}
 	}
+
+	networkDriver := networkDriverBridge
+	if runtime.GOOS == "windows" {
+		networkDriver = networkDriverNAT
+	}
 	for _, n := range conf.Networks {
 		_, err := e.client.NetworkCreate(noContext, n.Name, types.NetworkCreate{
-			Driver:     n.Driver,
-			Options:    n.DriverOpts,
+			Driver:     networkDriver,
 			EnableIPv6: e.enableIPv6,
-			// Labels:  defaultLabels,
 		})
 		if err != nil {
 			return err

pipeline/backend/types/network.go

@@ -2,7 +2,5 @@ package types
 
 // Network defines a container network.
 type Network struct {
-	Name       string            `json:"name,omitempty"`
-	Driver     string            `json:"driver,omitempty"`
-	DriverOpts map[string]string `json:"driver_opts,omitempty"`
+	Name string `json:"name,omitempty"`
 }

pipeline/backend/types/volume.go

@@ -2,7 +2,5 @@ package types
 
 // Volume defines a container volume.
 type Volume struct {
-	Name       string            `json:"name,omitempty"`
-	Driver     string            `json:"driver,omitempty"`
-	DriverOpts map[string]string `json:"driver_opts,omitempty"`
+	Name string `json:"name,omitempty"`
 }

pipeline/frontend/yaml/compiler/compiler.go

@@ -3,7 +3,6 @@ package compiler
 import (
 	"fmt"
 	"path"
-	"strings"
 
 	backend_types "github.com/woodpecker-ci/woodpecker/pipeline/backend/types"
 	"github.com/woodpecker-ci/woodpecker/pipeline/frontend/metadata"
@@ -11,17 +10,9 @@ import (
 	"github.com/woodpecker-ci/woodpecker/shared/constant"
 )
 
-// TODO(bradrydzewski) compiler should handle user-defined volumes from YAML
-// TODO(bradrydzewski) compiler should handle user-defined networks from YAML
-
 const (
-	windowsPrefix = "windows/"
-
 	defaultCloneName = "clone"
 
-	networkDriverNAT    = "nat"
-	networkDriverBridge = "bridge"
-
 	nameServices = "services"
 	namePipeline = "pipeline"
 )
@@ -114,22 +105,13 @@ func (c *Compiler) Compile(conf *yaml_types.Workflow) (*backend_types.Config, er
 
 	// create a default volume
 	config.Volumes = append(config.Volumes, &backend_types.Volume{
-		Name:   fmt.Sprintf("%s_default", c.prefix),
-		Driver: "local",
+		Name: fmt.Sprintf("%s_default", c.prefix),
 	})
 
 	// create a default network
-	if strings.HasPrefix(c.metadata.Sys.Platform, windowsPrefix) {
-		config.Networks = append(config.Networks, &backend_types.Network{
-			Name:   fmt.Sprintf("%s_default", c.prefix),
-			Driver: networkDriverNAT,
-		})
-	} else {
-		config.Networks = append(config.Networks, &backend_types.Network{
-			Name:   fmt.Sprintf("%s_default", c.prefix),
-			Driver: networkDriverBridge,
-		})
-	}
+	config.Networks = append(config.Networks, &backend_types.Network{
+		Name: fmt.Sprintf("%s_default", c.prefix),
+	})
 
 	// create secrets for mask
 	for _, sec := range c.secrets {