## kops upgrade cluster Upgrade a kubernetes cluster. ### Synopsis Automates checking for and applying Kubernetes updates. This upgrades a cluster to the latest recommended production ready Kubernetes version. After this command is run, use `kops update cluster` and `kops rolling-update cluster` to finish a cluster upgrade. ``` kops upgrade cluster [CLUSTER] [flags] ``` ### Examples ``` # Upgrade a cluster's Kubernetes version. kops upgrade cluster k8s-cluster.example.com --yes --state=s3://my-state-store ``` ### Options ``` --channel string Channel to use for upgrade -h, --help help for cluster -y, --yes Apply update ``` ### Options inherited from parent commands ``` --add_dir_header If true, adds the file directory to the header of the log messages --alsologtostderr log to standard error as well as files --config string yaml config file (default is $HOME/.kops.yaml) --log_backtrace_at traceLocation when logging hits line file:N, emit a stack trace (default :0) --log_dir string If non-empty, write log files in this directory --log_file string If non-empty, use this log file --log_file_max_size uint Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800) --logtostderr log to standard error instead of files (default true) --name string Name of cluster. Overrides KOPS_CLUSTER_NAME environment variable --one_output If true, only write logs to their native severity level (vs also writing to each lower severity level) --skip_headers If true, avoid header prefixes in the log messages --skip_log_headers If true, avoid headers when opening log files --state string Location of state storage (kops 'config' file). Overrides KOPS_STATE_STORE environment variable --stderrthreshold severity logs at or above this threshold go to stderr (default 2) -v, --v Level number for the log level verbosity --vmodule moduleSpec comma-separated list of pattern=N settings for file-filtered logging ``` ### SEE ALSO * [kops upgrade](kops_upgrade.md) - Upgrade a kubernetes cluster.