Added ephemeral ssh keys.

docker/keys.go

@@ -0,0 +1,54 @@
+package docker
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"context"
+	"github.com/docker/docker/api/types/swarm"
+
+	"github.com/rony5394/blazena/shared"
+)
+
+func exchangeKeys(w http.ResponseWriter, r *http.Request){
+	if r.Method != http.MethodPost{
+		w.WriteHeader(http.StatusMethodNotAllowed);
+		fmt.Fprint(w, "Method Not Allowed");
+		return;
+	}
+	if !bearerAuth(w, r) {return;}
+
+	rawBody, err := io.ReadAll(r.Body);
+	if err != nil {
+		panic("Failed to read body!");
+	}
+
+	var bodyDecoded struct{
+		SshPkPem string `json:"sshPkPem"`
+	};
+
+	err = json.Unmarshal(rawBody, &bodyDecoded);
+	if err != nil {
+		panic("Failed to unmarshal json."+ err.Error());
+	}
+	sshPkPem := bodyDecoded.SshPkPem;
+	hostKeypair := shared.GenerateSSHKeypair();
+	encoded, err := json.Marshal(struct{HostPkPem string `json:"hostPkPem"`}{HostPkPem: hostKeypair.Public});
+	if err != nil {
+		panic("I wonder how. I wonder why?"+err.Error());
+	}
+
+	ApiClient.ConfigCreate(context.Background(), swarm.ConfigSpec{
+		Data: []byte(sshPkPem), 
+		Annotations: swarm.Annotations{Name: "blazenaSSHPublicKey"},
+	});
+
+	ApiClient.SecretCreate(context.Background(), swarm.SecretSpec{
+		Data: []byte(hostKeypair.Private),
+		Annotations: swarm.Annotations{Name: "blazenaSSHHostPrivateKey"},
+	});
+
+
+	fmt.Fprint(w, string(encoded));
+}