Link to comprehensive documentation on how to use ssh without having to provide a password for the remote node everytime
How to use ssh-keygen to generate a new SSH key
Basically the process is:
Generate a public and private key on your server. Do not enter a pass phrase
ssh-keygen -t rsa
Now copy the public key to the server you want to login to/ or execute commands against automatically without providing a password
cat ~/.ssh/id_rsa.pub | ssh user@remote-host 'cat >> ~/.ssh/authorized_keys or ssh-copy-id user@remote-host
and here is a screenshot of the overall process
test it by doing this:
ssh username@remoteHost # or execute a command ssh username@remotehoste.g. ssh username@remotehost id