varlink images

implement varlink image functions for working with libpod with the exception of a
couple due to incompletions on the libpod side of things (build).

also, created a first pass at a libpodpy package which will stand as a client to
working with libpod's varlink methods using python.

Signed-off-by: baude <bbaude@redhat.com>

Closes: #669
Approved by: baude

1 files changed, 59 insertions, 0 deletions

diff --git a/cmd/podman/libpodruntime/runtime.go b/cmd/podman/libpodruntime/runtime.go
new file mode 100644
index 000000000..f9c14f6e7
--- /dev/null
+++ b/cmd/podman/libpodruntime/runtime.go
@@ -0,0 +1,59 @@
+package libpodruntime
+
+import (
+	"github.com/containers/storage"
+	"github.com/projectatomic/libpod/libpod"
+	"github.com/urfave/cli"
+)
+
+// GetRuntime generates a new libpod runtime configured by command line options
+func GetRuntime(c *cli.Context) (*libpod.Runtime, error) {
+	options := []libpod.RuntimeOption{}
+
+	if c.GlobalIsSet("root") || c.GlobalIsSet("runroot") ||
+		c.GlobalIsSet("storage-opt") || c.GlobalIsSet("storage-driver") {
+		storageOpts := storage.DefaultStoreOptions
+
+		if c.GlobalIsSet("root") {
+			storageOpts.GraphRoot = c.GlobalString("root")
+		}
+		if c.GlobalIsSet("runroot") {
+			storageOpts.RunRoot = c.GlobalString("runroot")
+		}
+		if c.GlobalIsSet("storage-driver") {
+			storageOpts.GraphDriverName = c.GlobalString("storage-driver")
+		}
+		if c.GlobalIsSet("storage-opt") {
+			storageOpts.GraphDriverOptions = c.GlobalStringSlice("storage-opt")
+		}
+
+		options = append(options, libpod.WithStorageConfig(storageOpts))
+	}
+
+	// TODO CLI flags for image config?
+	// TODO CLI flag for signature policy?
+
+	if c.GlobalIsSet("runtime") {
+		options = append(options, libpod.WithOCIRuntime(c.GlobalString("runtime")))
+	}
+
+	if c.GlobalIsSet("conmon") {
+		options = append(options, libpod.WithConmonPath(c.GlobalString("conmon")))
+	}
+
+	// TODO flag to set CGroup manager?
+	// TODO flag to set libpod static dir?
+	// TODO flag to set libpod tmp dir?
+
+	if c.GlobalIsSet("cni-config-dir") {
+		options = append(options, libpod.WithCNIConfigDir(c.GlobalString("cni-config-dir")))
+	}
+	if c.GlobalIsSet("default-mounts-file") {
+		options = append(options, libpod.WithDefaultMountsFile(c.GlobalString("default-mounts-file")))
+	}
+	options = append(options, libpod.WithHooksDir(c.GlobalString("hooks-dir-path")))
+
+	// TODO flag to set CNI plugins dir?
+
+	return libpod.NewRuntime(options...)
+}