K8s plugin: Add --volume and --mount options support

Sources/ContainerK8s/Commands/K8sCreate.swift

@@ -54,6 +54,12 @@ public struct K8sCreate: AsyncParsableCommand {
     @Option(name: .long, help: "Optional path to a CNI manifest to apply.")
     var cni: String?
 
+    @Option(name: [.customLong("volume"), .short], help: "Bind mount a volume into the cluster node (format: [source:]destination[:options])")
+    var volumes: [String] = []
+
+    @Option(name: .customLong("mount"), help: "Add a mount to the cluster node (format: type=<>,source=<>,target=<>,readonly)")
+    var mounts: [String] = []
+
     public func run() async throws {
         LoggingSystem.bootstrap { _ in StderrLogHandler() }
         let log = Logger(label: K8sHelper.pluginName)
@@ -95,7 +101,9 @@ public struct K8sCreate: AsyncParsableCommand {
             registryScheme: registryFlags.scheme,
             maxConcurrentDownloads: imageFetchFlags.maxConcurrentDownloads,
             remove: remove,
-            fqdn: fqdn
+            fqdn: fqdn,
+            volumes: volumes,
+            mounts: mounts
         )
 
         progress.set(description: "Starting cluster")

Sources/ContainerK8s/Provisioners/LinuxNodeProvisioner.swift

@@ -32,6 +32,8 @@ public struct LinuxNodeProvisioner: NodeProvisioner {
     private let maxConcurrentDownloads: Int
     private let remove: Bool
     private let fqdn: String?
+    private let volumes: [String]
+    private let mounts: [String]
 
     public init(
         clusterName: String,
@@ -42,7 +44,9 @@ public struct LinuxNodeProvisioner: NodeProvisioner {
         registryScheme: String = "https",
         maxConcurrentDownloads: Int = 3,
         remove: Bool = false,
-        fqdn: String? = nil
+        fqdn: String? = nil,
+        volumes: [String] = [],
+        mounts: [String] = []
     ) throws {
         guard !roles.isEmpty else {
             throw ContainerizationError(.invalidArgument, message: "LinuxNode roles must not be empty")
@@ -63,6 +67,8 @@ public struct LinuxNodeProvisioner: NodeProvisioner {
         self.maxConcurrentDownloads = maxConcurrentDownloads
         self.remove = remove
         self.fqdn = fqdn
+        self.volumes = volumes
+        self.mounts = mounts
     }
 
     public func provision(name: String, log: Logger) async throws {
@@ -90,7 +96,7 @@ public struct LinuxNodeProvisioner: NodeProvisioner {
                 "\(ResourceLabelKeys.role)=\(roles.joined(separator: ","))",
             ],
             maskedPaths: [],
-            mounts: [],
+            mounts: mounts,
             name: name,
             networks: [],
             os: "linux",
@@ -107,7 +113,7 @@ public struct LinuxNodeProvisioner: NodeProvisioner {
             tmpFs: [],
             useInit: false,
             virtualization: false,
-            volumes: []
+            volumes: volumes
         )
 
         let updatedResource = K8sHelper.defaultedResourceFlags(Flags.Resource(cpus: cpus, memory: memory))

docs/command-reference.md

@@ -1610,7 +1610,7 @@ Creates and starts a local Kubernetes cluster. Pulls the node image if needed, r
 **Usage**
 
 ```bash
-container k8s create [--name <name>] [--node-image <image>] [--cni <path>] [--rm] [<resource options>] [--debug]
+container k8s create [--name <name>] [--node-image <image>] [--cni <path>] [--rm] [--volume <volume>] [--mount <mount>] [<resource options>] [--debug]
 ```
 
 **Options**
@@ -1619,6 +1619,8 @@ container k8s create [--name <name>] [--node-image <image>] [--cni <path>] [--rm
 *   `--node-image <image>`: Node image reference (default: `docker.io/kindest/node:v1.35.5`)
 *   `--cni <path>`: Optional path to a CNI manifest to apply. If not provided, the bundled kindnet CNI is used.
 *   `--rm`: Remove the cluster container after it stops
+*   `--volume, -v <volume>`: Bind mount a host directory or named volume into the cluster node (format: `[source:]destination[:options]`, repeatable). Uses the same syntax as `container run --volume`.
+*   `--mount <mount>`: Add a mount to the cluster node (format: `type=<>,source=<>,target=<>,readonly`, repeatable). Uses the same syntax as `container run --mount`.
 
 **Resource Options**
 
@@ -1647,6 +1649,15 @@ container k8s create --name temp-cluster --rm
 
 # create a cluster using a custom CNI manifest instead of the bundled kindnet
 container k8s create --cni ./my-cni.yaml
+
+# create a cluster with a host directory bind-mounted into the node
+container k8s create --volume /Users/me/data:/mnt/data
+
+# create a cluster with a named, managed volume mounted read-only
+container k8s create --volume mydata:/mnt/data:ro
+
+# create a cluster with an explicit mount using type=/source=/target= syntax
+container k8s create --mount type=bind,source=/Users/me/data,target=/mnt/data,readonly
 ```
 
 ### `container k8s start`