feat: add config.nodeName to joiner

[Yu-Jack]

Description

Currently, when we create the first node, we can give the customized node name (config.noddeName) here.

rancherd/pkg/resources/resources.go

Lines 54 to 62 in 6f7255e

	func ToBootstrapFile(config *config.Config, path string) (*applyinator.File, error) {
	nodeName := config.NodeName
	if nodeName == "" {
	hostname, err := os.Hostname()
	if err != nil {
	return nil, fmt.Errorf("looking up hostname: %w", err)
	}
	nodeName = strings.Split(hostname, ".")[0]
	}

But, for the joiner, we don't have a chance to give the config.nodeName to it.

rancherd/pkg/join/join.go

Lines 49 to 62 in 6f7255e

	var env []string
	env = addEnv(env, "CATTLE_SERVER", config.Server)
	env = addEnv(env, "CATTLE_TOKEN", config.Token)
	env = addEnv(env, "CATTLE_CA_CHECKSUM", caChecksum)
	env = addEnv(env, "CATTLE_ADDRESS", config.Address)
	env = addEnv(env, "CATTLE_INTERNAL_ADDRESS", config.InternalAddress)
	env = addEnv(env, "CATTLE_LABELS", strings.Join(config.Labels, ","))
	env = addEnv(env, "CATTLE_TAINTS", strings.Join(config.Taints, ","))
	env = addEnv(env, "CATTLE_ROLE_ETCD", fmt.Sprint(etcd))
	env = addEnv(env, "CATTLE_ROLE_CONTROLPLANE", fmt.Sprint(controlPlane))
	env = addEnv(env, "CATTLE_ROLE_WORKER", fmt.Sprint(worker))
	return &applyinator.Instruction{

Solution

Add new env CATTLE_NODE_NAME for the joiner if config.nodeName is set.

Related Issue

harvester/harvester#7312