Move WissKI Parts to new ingredients system

internal/wisski/ingredient/barrel/provisioner/provisioner.go

@@ -0,0 +1,65 @@
+package provisioner
+
+import (
+	"errors"
+	"strings"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient"
+	"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient/barrel"
+	"github.com/alessio/shellescape"
+	"github.com/tkw1536/goprogram/stream"
+)
+
+// Provisioner provides provisioning for a barrel
+// NOTE(twiesing): This should be refactored to not use the provision script.
+// Instead, this should code directly defined in go.
+type Provisioner struct {
+	ingredient.Base
+	Barrel *barrel.Barrel
+}
+
+// Provision provisions an instance, assuming that the required databases already exist.
+func (provision *Provisioner) Provision(io stream.IOStream) error {
+
+	// build the container
+	if err := provision.Barrel.Build(io, false); err != nil {
+		return err
+	}
+
+	provisionParams := []string{
+		provision.Domain(),
+
+		provision.SqlDatabase,
+		provision.SqlUsername,
+		provision.SqlPassword,
+
+		provision.GraphDBRepository,
+		provision.GraphDBUsername,
+		provision.GraphDBPassword,
+
+		provision.DrupalUsername,
+		provision.DrupalPassword,
+
+		"", // TODO: DrupalVersion
+		"", // TODO: WissKIVersion
+	}
+
+	// escape the parameter
+	for i, param := range provisionParams {
+		provisionParams[i] = shellescape.Quote(param)
+	}
+
+	// figure out the provision script
+	// TODO: Move the provision script into the control plane!
+	provisionScript := "sudo PATH=$PATH -u www-data /bin/bash /provision_container.sh " + strings.Join(provisionParams, " ")
+
+	code, err := provision.Barrel.Stack().Run(io, true, "barrel", "/bin/bash", "-c", provisionScript)
+	if err != nil {
+		return err
+	}
+	if code != 0 {
+		return errors.New("unable to run provision script")
+	}
+
+	return nil
+}