fixes #617: change delimeter for nodeselector

Signed-off-by: Michal Augustyn <michal.augustyn@mail.com>

docs/reference/buildx_create.md

@@ -125,7 +125,7 @@ Passes additional driver-specific options. Details for each driver:
     - `image=IMAGE` - Sets the container image to be used for running buildkit.
     - `namespace=NS` - Sets the Kubernetes namespace. Defaults to the current namespace.
     - `replicas=N` - Sets the number of `Pod` replicas. Defaults to 1.
-    - `nodeselector="label1=value1,label2=value2"` - Sets the kv of `Pod` nodeSelector. No Defaults. Example `nodeselector=kubernetes.io/arch=arm64`
+    - `nodeselector="label1=value1;label2=value2"` - Sets the kv of `Pod` nodeSelector. No Defaults. Use `;` to split labels. Example `nodeselector=kubernetes.io/arch=arm64`
     - `rootless=(true|false)` - Run the container as a non-root user without `securityContext.privileged`. [Using Ubuntu host kernel is recommended](https://github.com/moby/buildkit/blob/master/docs/rootless.md). Defaults to false.
     - `loadbalance=(sticky|random)` - Load-balancing strategy. If set to "sticky", the pod is chosen using the hash of the context path. Defaults to "sticky"
 

driver/kubernetes/factory.go

@@ -92,7 +92,7 @@ func (f *factory) New(ctx context.Context, cfg driver.InitConfig) (driver.Driver
 			}
 			deploymentOpt.Image = bkimage.DefaultRootlessImage
 		case "nodeselector":
-			kvs := strings.Split(strings.Trim(v, `"`), ",")
+			kvs := strings.Split(strings.Trim(v, `"`), ";")
 			s := map[string]string{}
 			for i := range kvs {
 				kv := strings.Split(kvs[i], "=")