kops:tldr:53c2c

The command "kops create cluster -f ${cluster_name-yaml}" is used to create a Kubernetes cluster using Kops.

Here's a breakdown of the different components of the command:

• "kops" is a command-line tool for creating, managing, and operating Kubernetes clusters on Amazon Web Services (AWS) or other cloud providers.
• "create cluster" is the subcommand used with Kops to create a new cluster.
• "-f" is the flag used to specify the path to the cluster configuration file.
• "${cluster_name-yaml}" is a placeholder for the actual value of the cluster configuration file. The format of this value should be a YAML file that contains the configuration details for the Kubernetes cluster, like the number of nodes, AWS region, instance types, etc.

The use of "${cluster_name-yaml}" in the command means that it is taking the value of the environment variable "cluster_name-yaml". If the variable is defined, it will use the value specified. If the variable is not defined, it will use the default value "yaml".

For example, if you have a cluster configuration file named "my_cluster.yaml" and you have defined the environment variable "cluster_name-yaml" to the path of that file, the command will be interpreted as "kops create cluster -f my_cluster.yaml" and it will create a cluster based on the configuration specified in "my_cluster.yaml".

Note: The actual value of the cluster configuration file, whether it's "my_cluster.yaml" or any other file name, will depend on your specific setup and requirements.