Fix docker memory and cpu reporting in Windows (#3043)

plugins/inputs/docker/client.go

@@ -0,0 +1,53 @@
+package docker
+
+import (
+	"context"
+
+	"github.com/docker/docker/api/types"
+	docker "github.com/docker/docker/client"
+)
+
+var (
+	version        string
+	defaultHeaders = map[string]string{"User-Agent": "engine-api-cli-1.0"}
+)
+
+type Client interface {
+	Info(ctx context.Context) (types.Info, error)
+	ContainerList(ctx context.Context, options types.ContainerListOptions) ([]types.Container, error)
+	ContainerStats(ctx context.Context, containerID string, stream bool) (types.ContainerStats, error)
+	ContainerInspect(ctx context.Context, containerID string) (types.ContainerJSON, error)
+}
+
+func NewEnvClient() (Client, error) {
+	client, err := docker.NewEnvClient()
+	if err != nil {
+		return nil, err
+	}
+	return &SocketClient{client}, nil
+}
+
+func NewClient(host string) (Client, error) {
+	client, err := docker.NewClient(host, version, nil, defaultHeaders)
+	if err != nil {
+		return nil, err
+	}
+	return &SocketClient{client}, nil
+}
+
+type SocketClient struct {
+	client *docker.Client
+}
+
+func (c *SocketClient) Info(ctx context.Context) (types.Info, error) {
+	return c.client.Info(ctx)
+}
+func (c *SocketClient) ContainerList(ctx context.Context, options types.ContainerListOptions) ([]types.Container, error) {
+	return c.client.ContainerList(ctx, options)
+}
+func (c *SocketClient) ContainerStats(ctx context.Context, containerID string, stream bool) (types.ContainerStats, error) {
+	return c.client.ContainerStats(ctx, containerID, stream)
+}
+func (c *SocketClient) ContainerInspect(ctx context.Context, containerID string) (types.ContainerJSON, error) {
+	return c.client.ContainerInspect(ctx, containerID)
+}