curl -sfL https://get.k3s.io | sh -

[INFO]  Finding release for channel stable
[INFO]  Using v1.25.4+k3s1 as release
[INFO]  Downloading hash https://github.com/k3s-io/k3s/releases/download/v1.25.4+k3s1/sha256sum-amd64.txt
[INFO]  Downloading binary https://github.com/k3s-io/k3s/releases/download/v1.25.4+k3s1/k3s
[INFO]  Verifying binary download
[INFO]  Installing k3s to /usr/local/bin/k3s
[INFO]  Skipping installation of SELinux RPM
[INFO]  Skipping /usr/local/bin/kubectl symlink to k3s, already exists
[INFO]  Creating /usr/local/bin/crictl symlink to k3s
[INFO]  Skipping /usr/local/bin/ctr symlink to k3s, command exists in PATH at /usr/bin/ctr
[INFO]  Creating killall script /usr/local/bin/k3s-killall.sh
[INFO]  Creating uninstall script /usr/local/bin/k3s-uninstall.sh
[INFO]  env: Creating environment file /etc/systemd/system/k3s.service.env
[INFO]  systemd: Creating service file /etc/systemd/system/k3s.service
[INFO]  systemd: Enabling k3s unit
Created symlink /etc/systemd/system/multi-user.target.wants/k3s.service → /etc/systemd/system/k3s.service.
[INFO]  systemd: Starting k3s

.
├── install.sh
└── v1.23.6+k3s1
    ├── k3s
    └── k3s-airgap-images-amd64.tar

cd <외장하드 경로>
sudo mkdir -p /var/lib/rancher/k3s/agent/images/
sudo cp ./v1.23.6+k3s1/k3s-airgap-images-amd64.tar /var/lib/rancher/k3s/agent/images/
sudo cp ./v1.23.6+k3s1/k3s /usr/local/bin/

sudo chmod 755 /usr/local/bin/k3s

export INSTALL_K3S_SKIP_DOWNLOAD=true
sh ./install.sh --docker

[DEBUG]  INSTALL_K3S_EXEC=
[DEBUG]  @=--docker
[DEBUG]  Run setup_env()
[DEBUG]  1=--docker
[DEBUG]  @=--docker
[DEBUG]  CMD_K3S_EXEC=server \
	'--docker' \
[DEBUG]  SERVICE_K3S=k3s.service
[DEBUG]  HAS_SYSTEMD=true
[DEBUG]  HAS_OPENRC=
[DEBUG]  Run download_and_verify()
[DEBUG]  BIN_DIR=/usr/local/bin
[DEBUG]  can_skip_download_binary=[DEBUG]  INSTALL_K3S_SKIP_DOWNLOAD=true
[DEBUG]  INSTALL_K3S_SKIP_DOWNLOAD=true
[INFO]  Skipping k3s download and verify
[DEBUG]  package_installer=yum
[DEBUG]  rpm_site=rpm.rancher.io
[DEBUG]  rpm_channel=stable
[DEBUG]  rpm_site_infix=centos/8
[DEBUG]  rpm_target=el8
[DEBUG]  Run can_skip_download_selinux()
[INFO]  Skipping installation of SELinux RPM
[DEBUG]  cmd=
[INFO]  Skipping /usr/local/bin/kubectl symlink to k3s, already exists
[INFO]  Creating /usr/local/bin/crictl symlink to k3s
[INFO]  Skipping /usr/local/bin/ctr symlink to k3s, command exists in PATH at /usr/bin/ctr
[INFO]  Creating killall script /usr/local/bin/k3s-killall.sh
[INFO]  Creating uninstall script /usr/local/bin/k3s-uninstall.sh
[INFO]  env: Creating environment file /etc/systemd/system/k3s.service.env
[INFO]  systemd: Creating service file /etc/systemd/system/k3s.service
[INFO]  systemd: Enabling k3s unit
Created symlink /etc/systemd/system/multi-user.target.wants/k3s.service → /etc/systemd/system/k3s.service.
[INFO]  systemd: Starting k3s

k3s

NAME:
   k3s - Kubernetes, but small and simple

USAGE:
   k3s [global options] command [command options] [arguments...]

VERSION:
   v1.23.6+k3s1 (418c3fa8)

COMMANDS:
   server           Run management server
   agent            Run node agent
   kubectl          Run kubectl
   crictl           Run crictl
   ctr              Run ctr
   check-config     Run config check
   etcd-snapshot    Trigger an immediate etcd snapshot
   secrets-encrypt  Control secrets encryption and keys rotation
   certificate      Certificates management
   help, h          Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --debug                     (logging) Turn on debug logs [$K3S_DEBUG]
   --data-dir value, -d value  (data) Folder to hold state default /var/lib/rancher/k3s or ${HOME}/.rancher/k3s if not root
   --help, -h                  show help
   --version, -v               print the version

k3s kubectl

WARN[0000] Unable to read /etc/rancher/k3s/k3s.yaml, please start server with --write-kubeconfig-mode to modify kube config permissions
kubectl controls the Kubernetes cluster manager.

 Find more information at: https://kubernetes.io/docs/reference/kubectl/overview/

Basic Commands (Beginner):
  create        Create a resource from a file or from stdin
  expose        Take a replication controller, service, deployment or pod and expose it as a new
Kubernetes service
  run           Run a particular image on the cluster
  set           Set specific features on objects

Basic Commands (Intermediate):
  explain       Get documentation for a resource
  get           Display one or many resources
  edit          Edit a resource on the server
  delete        Delete resources by file names, stdin, resources and names, or by resources and
label selector

Deploy Commands:
  rollout       Manage the rollout of a resource
  scale         Set a new size for a deployment, replica set, or replication controller
  autoscale     Auto-scale a deployment, replica set, stateful set, or replication controller

Cluster Management Commands:
  certificate   Modify certificate resources.
  cluster-info  Display cluster information
  top           Display resource (CPU/memory) usage
  cordon        Mark node as unschedulable
  uncordon      Mark node as schedulable
  drain         Drain node in preparation for maintenance
  taint         Update the taints on one or more nodes

Troubleshooting and Debugging Commands:
  describe      Show details of a specific resource or group of resources
  logs          Print the logs for a container in a pod
  attach        Attach to a running container
  exec          Execute a command in a container
  port-forward  Forward one or more local ports to a pod
  proxy         Run a proxy to the Kubernetes API server
  cp            Copy files and directories to and from containers
  auth          Inspect authorization
  debug         Create debugging sessions for troubleshooting workloads and nodes

Advanced Commands:
  diff          Diff the live version against a would-be applied version
  apply         Apply a configuration to a resource by file name or stdin
  patch         Update fields of a resource
  replace       Replace a resource by file name or stdin
  wait          Experimental: Wait for a specific condition on one or many resources
  kustomize     Build a kustomization target from a directory or URL.

Settings Commands:
  label         Update the labels on a resource
  annotate      Update the annotations on a resource
  completion    Output shell completion code for the specified shell (bash, zsh or fish)

Other Commands:
  alpha         Commands for features in alpha
  api-resources Print the supported API resources on the server
  api-versions  Print the supported API versions on the server, in the form of "group/version"
  config        Modify kubeconfig files
  plugin        Provides utilities for interacting with plugins
  version       Print the client and server version information

Usage:
  kubectl [flags] [options]

Use "kubectl <command> --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).