Add a form to provision a new instance

internal/dis/component/server/admin/admin.go

@@ -70,7 +70,9 @@ var (
 	menuUsers      = component.MenuItem{Title: "Users", Path: "/admin/users/"}
 	menuUserCreate = component.MenuItem{Title: "Create User", Path: "/admin/users/create/"}
 
-	menuInstances   = component.MenuItem{Title: "Instances", Path: "/admin/instance/"}
+	menuProvision = component.MenuItem{Title: "Provision", Path: "/admin/instances/provision/"}
+
+	menuInstances   = component.MenuItem{Title: "Instances", Path: "/admin/instances/"}
 	menuInstance    = component.DummyMenuItem()
 	menuGrants      = component.DummyMenuItem()
 	menuIngredients = component.DummyMenuItem()
@@ -94,10 +96,13 @@ func (admin *Admin) HandleRoute(ctx context.Context, route string) (handler http
 		router.Handler(http.MethodGet, route, index)
 	}
 
-	// add a handler for the instances page
+	// add a handler for the instances (and provision) page
 	{
 		instances := admin.instances(ctx)
-		router.Handler(http.MethodGet, route+"instance/", instances)
+		router.Handler(http.MethodGet, route+"instances/", instances)
+
+		provision := admin.instanceProvision(ctx)
+		router.Handler(http.MethodGet, route+"instances/provision", provision)
 	}
 
 	// add a handler for the user page

internal/dis/component/server/admin/html/instance_provision.html

@@ -0,0 +1,11 @@
+<div class="pure-u-1-1">
+    <form class="pure-form pure-form-aligned" id="provision">
+        <fieldset disabled="disabled">
+            <div class="pure-control-group">
+                <label for="slug">Slug</label>
+                <input name="slug" id="slug" placeholder="" autocomplete="slug">
+            </div>
+            <input type="submit" value="Provision" class="pure-button">
+        </fieldset>
+    </form>
+</div>

internal/dis/component/server/admin/index.go

@@ -130,6 +130,9 @@ func (admin *Admin) instances(ctx context.Context) http.Handler {
 			menuAdmin,
 			menuInstances,
 		),
+		templating.Actions(
+			menuProvision,
+		),
 	)
 
 	return tpl.HTMLHandler(func(r *http.Request) (idx indexContext, err error) {

internal/dis/component/server/admin/instance_provision.go

@@ -0,0 +1,42 @@
+package admin
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
+
+	_ "embed"
+)
+
+//go:embed "html/instance_provision.html"
+var instanceProvisionHTML []byte
+var instanceProvisionTemplate = templating.Parse[instanceProvisionContext](
+	"instance_provision.html", instanceProvisionHTML, nil,
+
+	templating.Title("Provision New Instance"),
+	templating.Assets(assets.AssetsAdminProvision),
+)
+
+type instanceProvisionContext struct {
+	templating.RuntimeFlags
+
+	// nothing for the moment
+}
+
+func (admin *Admin) instanceProvision(ctx context.Context) http.Handler {
+	tpl := instanceProvisionTemplate.Prepare(
+		admin.Dependencies.Templating,
+
+		templating.Crumbs(
+			menuAdmin,
+			menuInstances,
+			menuProvision,
+		),
+	)
+
+	return tpl.HTMLHandler(func(r *http.Request) (ipc instanceProvisionContext, err error) {
+		return ipc, nil
+	})
+}

internal/dis/component/server/admin/socket/actions.go

@@ -2,9 +2,12 @@ package socket
 
 import (
 	"context"
+	"encoding/json"
+	"fmt"
 	"io"
 
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/exporter"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/provision"
 	"github.com/FAU-CDI/wisski-distillery/internal/wisski"
 )
 
@@ -24,6 +27,32 @@ var actions = map[string]SocketAction{
 			)
 		},
 	},
+	"provision": {
+		NumParams: 1,
+		HandleInteractive: func(ctx context.Context, sockets *Sockets, out io.Writer, params ...string) error {
+
+			// read the flags of the instance to be provisioned
+			var flags provision.ProvisionFlags
+			if err := json.Unmarshal([]byte(params[0]), &flags); err != nil {
+				return err
+			}
+
+			instance, err := sockets.Dependencies.Provision.Provision(
+				out,
+				ctx,
+				flags,
+			)
+			if err != nil {
+				return err
+			}
+
+			fmt.Fprintf(out, "URL:      %s\n", instance.URL().String())
+			fmt.Fprintf(out, "Username: %s\n", instance.DrupalUsername)
+			fmt.Fprintf(out, "Password: %s\n", instance.DrupalPassword)
+
+			return nil
+		},
+	},
 }
 
 // socket specific actions

internal/dis/component/server/admin/socket/socket.go

@@ -10,6 +10,7 @@ import (
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/exporter"
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances/purger"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/provision"
 	"github.com/FAU-CDI/wisski-distillery/internal/wisski"
 	"github.com/tkw1536/goprogram/status"
 	"github.com/tkw1536/pkglib/httpx"
@@ -19,6 +20,7 @@ type Sockets struct {
 	component.Base
 
 	Dependencies struct {
+		Provision *provision.Provision
 		Instances *instances.Instances
 		Exporter  *exporter.Exporter
 		Purger    *purger.Purger