I am not proud of it.

Why did I choose to do this.
I could get some more sleep but I choose to write this.
I just want some snapshot before I start breaking stuff.

docker/prepare.go

@@ -0,0 +1,69 @@
+package docker
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+
+	"github.com/moby/moby/api/types/swarm"
+	"github.com/moby/moby/api/types/mount"
+	"github.com/moby/moby/client"
+)
+
+func prepare(w http.ResponseWriter, r *http.Request){
+	if r.Method != http.MethodPost{
+		w.WriteHeader(http.StatusMethodNotAllowed);
+		fmt.Fprint(w, "Method Not Allowed");
+		return;
+	}
+
+	//TODO: add token auth
+
+	rawBody, err := io.ReadAll(r.Body);
+	if err != nil {
+		panic("Failed to read body!");
+	}
+
+	var bodyDecoded struct{
+		volume string
+		node string
+	};
+
+	err = json.Unmarshal(rawBody, &bodyDecoded);
+	if err != nil {
+		panic("Failed to unmarshal json."+ err.Error());
+	}
+
+	maxConcurrent := uint64(1);
+	totalCompletions := uint64(1);
+	targetVolume := bodyDecoded.volume;
+	targetNode := bodyDecoded.node;
+	
+	ApiClient.ServiceCreate(context.Background(), client.ServiceCreateOptions{
+		Spec: swarm.ServiceSpec{
+			Mode: swarm.ServiceMode{
+				ReplicatedJob: &swarm.ReplicatedJob{
+					MaxConcurrent: &maxConcurrent,
+					TotalCompletions: &totalCompletions,
+				},
+			},
+			TaskTemplate: swarm.TaskSpec{
+				ContainerSpec: &swarm.ContainerSpec{
+					Image: "docker.io/library/alpine:latest",
+					Mounts: []mount.Mount{
+						mount.Mount{
+							Source: targetVolume,
+							Target: "/volume",
+							Type: "bind",
+						},
+					},
+				},
+				Placement: &swarm.Placement{
+					Constraints: []string{"node.hostname=="+targetNode},
+				},
+			},
+		},
+	});
+}