local-hostpath driver

Signed-off-by: Travis Glenn Hansen <travisghansen@yahoo.com>

src/driver/controller-client-common/index.js

@@ -41,7 +41,7 @@ class ControllerClientCommonDriver extends CsiBaseDriver {
 
       options.service.identity.capabilities.volume_expansion = [
         //"UNKNOWN",
-        "ONLINE",
+        //"ONLINE",
         //"OFFLINE"
       ];
     }

src/driver/controller-local-hostpath/index.js

@@ -0,0 +1,65 @@
+const _ = require("lodash");
+
+const { ControllerClientCommonDriver } = require("../controller-client-common");
+
+const NODE_TOPOLOGY_KEY_NAME = "org.democratic-csi.topology/node";
+
+/**
+ * Crude local-hostpath driver which simply creates directories to be mounted
+ * and uses rsync for cloning/snapshots
+ */
+class ControllerLocalHostpathDriver extends ControllerClientCommonDriver {
+  constructor(ctx, options) {
+    const i_caps = _.get(
+      options,
+      "service.identity.capabilities.service",
+      false
+    );
+    super(...arguments);
+
+    if (!i_caps) {
+      this.ctx.logger.debug("setting local-hostpath identity service caps");
+
+      options.service.identity.capabilities.service = [
+        //"UNKNOWN",
+        "CONTROLLER_SERVICE",
+        "VOLUME_ACCESSIBILITY_CONSTRAINTS",
+      ];
+    }
+  }
+
+  getConfigKey() {
+    return "local-hostpath";
+  }
+
+  getVolumeContext(name) {
+    const driver = this;
+    const config_key = driver.getConfigKey();
+    return {
+      node_attach_driver: "hostpath",
+      path: driver.getShareVolumePath(name),
+    };
+  }
+
+  getFsTypes() {
+    return [];
+  }
+
+  /**
+   * Add node topologies
+   *
+   * @param {*} call
+   * @returns
+   */
+  async NodeGetInfo(call) {
+    const response = await super.NodeGetInfo(...arguments);
+    response.accessible_topology = {
+      segments: {
+        [NODE_TOPOLOGY_KEY_NAME]: response.node_id,
+      },
+    };
+    return response;
+  }
+}
+
+module.exports.ControllerLocalHostpathDriver = ControllerLocalHostpathDriver;

src/driver/factory.js

@@ -1,5 +1,8 @@
 const { FreeNASSshDriver } = require("./freenas/ssh");
 const { FreeNASApiDriver } = require("./freenas/api");
+const {
+  ControllerLocalHostpathDriver,
+} = require("./controller-local-hostpath");
 const { ControllerZfsGenericDriver } = require("./controller-zfs-generic");
 const { ControllerZfsLocalDriver } = require("./controller-zfs-local");
 const {
@@ -41,6 +44,8 @@ function factory(ctx, options) {
       return new ControllerSmbClientDriver(ctx, options);
     case "nfs-client":
       return new ControllerNfsClientDriver(ctx, options);
+    case "local-hostpath":
+      return new ControllerLocalHostpathDriver(ctx, options);
     case "lustre-client":
       return new ControllerLustreClientDriver(ctx, options);
     case "node-manual":

src/driver/index.js

@@ -575,6 +575,17 @@ class CsiBaseDriver {
             );
           }
         }
+        break;
+      case "hostpath":
+        result = await mount.pathIsMounted(staging_target_path);
+        // if not mounted, mount
+        if (!result) {
+          await mount.bindMount(volume_context.path, staging_target_path);
+          return {};
+        } else {
+          return {};
+        }
+
         break;
       case "oneclient":
         let oneclient = new OneClient();
@@ -1119,6 +1130,8 @@ class CsiBaseDriver {
       case "nfs":
       case "smb":
       case "lustre":
+      case "oneclient":
+      case "hostpath":
       case "iscsi":
       case "zfs-local":
         // ensure appropriate directories/files