To become a validator, you must submit a create-validator transaction to the network. It is recommended to wait for your node to be fully synced before running this transaction. You will need to stake some or all of your tokens to improve your odds of being selected as a validator. First, open an interactive shell inside the container and pass the four important environment variables you've created into the container:
This command will return a list of staking validators. If the moniker you chose appears, then you have successfully become a staked validator and your node is eligible to be selected by users to validate blocks.