with rust template

pkg/tasks/rust-bin/build.go

@@ -0,0 +1,43 @@
+package rustbin
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"dagger.io/dagger"
+)
+
+func Build(ctx context.Context, container *dagger.Container, binName string) (dagger.FileID, error) {
+	log.Printf("building binary: (binName=%s)", binName)
+	c := container.Exec(dagger.ContainerExecOpts{
+		Args: []string{
+			"rustup",
+			"target",
+			"add",
+			"x86_64-unknown-linux-musl",
+		},
+	})
+	if _, err := c.ExitCode(ctx); err != nil {
+		return "", err
+	}
+
+	c = c.Exec(dagger.ContainerExecOpts{
+		Args: []string{
+			"cargo",
+			"build",
+			"--release",
+			"--target=x86_64-unknown-linux-musl",
+		},
+	})
+	if _, err := c.ExitCode(ctx); err != nil {
+		return "", err
+	}
+
+	bin, err := c.File(fmt.Sprintf("target/release/%s", binName)).ID(ctx)
+	if err != nil {
+		return "", err
+	}
+
+	return bin, nil
+}