Move wisski instance code to separate package

internal/wisski/provision.go

@@ -0,0 +1,55 @@
+package wisski
+
+import (
+	"errors"
+	"strings"
+
+	"github.com/alessio/shellescape"
+	"github.com/tkw1536/goprogram/stream"
+)
+
+// Provision provisions an instance, assuming that the required databases already exist.
+func (wisski *WissKI) Provision(io stream.IOStream) error {
+
+	// build the container
+	if err := wisski.Build(io, false); err != nil {
+		return err
+	}
+
+	provisionParams := []string{
+		wisski.Domain(),
+
+		wisski.SqlDatabase,
+		wisski.SqlUsername,
+		wisski.SqlPassword,
+
+		wisski.GraphDBRepository,
+		wisski.GraphDBUsername,
+		wisski.GraphDBPassword,
+
+		wisski.DrupalUsername,
+		wisski.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 := wisski.Barrel().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
+}