Add withTags for tailscale

Signed-off-by: Kristoffer Dalby <[email protected]>

integration/tsic/tsic.go

@@ -51,6 +51,7 @@ type TailscaleInContainer struct {
 	headscaleCert     []byte
 	headscaleHostname string
 	withSSH           bool
+	withTags          []string
 }
 
 type Option = func(c *TailscaleInContainer)
@@ -87,6 +88,12 @@ func WithHeadscaleName(hsName string) Option {
 	}
 }
 
+func WithTags(tags []string) Option {
+	return func(tsic *TailscaleInContainer) {
+		tsic.withTags = tags
+	}
+}
+
 func WithSSH() Option {
 	return func(tsic *TailscaleInContainer) {
 		tsic.withSSH = true
@@ -233,6 +240,12 @@ func (t *TailscaleInContainer) Up(
 		command = append(command, "--ssh")
 	}
 
+	if len(t.withTags) > 0 {
+		command = append(command,
+			fmt.Sprintf(`--advertise-tags=%s`, strings.Join(t.withTags, ",")),
+		)
+	}
+
 	if _, _, err := t.Execute(command); err != nil {
 		return fmt.Errorf("failed to join tailscale client: %w", err)
 	}