# sealer upgrade

upgrade the kubernetes version of an existing cluster from a Sealer Image

# Synopsis

upgrade command is used to upgrade the kubernetes version of an existing cluster. User can upgrade cluster by using specifying upgrade-image

sealer upgrade [flags]

# Examples

upgrade cluster by Clusterfile:
  sealer upgrade -f Clusterfile

run cluster by CLI flags:
  sealer upgrade docker.io/sealerio/kubernetes:v1.22.15

# Options

  -f, --Clusterfile string   Clusterfile path to upgrade a Kubernetes cluster
  -h, --help                 help for upgrade

# Options inherited from parent commands

      --color string               set the log color mode, the possible values can be [never always] (default "always")
      --config string              config file of sealer tool (default is $HOME/.sealer.json)
  -d, --debug                      turn on debug mode
      --hide-path                  hide the log path
      --hide-time                  hide the log time
      --log-to-file                write log message to disk
  -q, --quiet                      silence the usage when fail
      --remote-logger-url string   remote logger url, if not empty, will send log to this url
      --task-name string           task name which will embedded in the remote logger header, only valid when --remote-logger-url is set

# SEE ALSO

sealer cert - Update Kubernetes API server's cert
sealer delete - delete an existing cluster
sealer apply - apply a Kubernetes cluster via specified Clusterfile
sealer scale-up - scale-up new master or worker node to specified cluster
sealer run - start to run a cluster from a Sealer Image
sealer rollback - rollback a Kubernetes cluster via specified Clusterfile
sealer upgrade - upgrade the kubernetes version of an existing cluster from a Sealer Image