Cfrtjryk

Take for example i have 4 servers A,B,C,D. All are on same network and all have same services running like Apache, Tomcat etc and when patching is required to be done on these servers i need to stop, Start these services. Right now i am manually going into all the servers and doing the same. I know SSH can be done here but i am looking for a script which i when click gives me options:

Which server i want to go in.
Once i get in for example server C. Script should automatically ask which service u want to Stop? I am hoping we can declare these services with path in the script.
Once stopped it should display a message that this particular service is stopped.
It should not stop here, it needs to go on as i might or i have to stop other services on other server..
And then there should be something to start them.
Need to do this sitting on a single server. In my prod. environment i have 25 servers it is a pain for me to jump in every server or even doing SSH all the time. I know there can be script written and might be a long one.

PS: I cannot use and install Ansible.

This might give you a starting point. Note there is no sanity-checking done here:

#!/usr/local/bin/bash

# example invocations:

#   script.sh                            - prompt for everything

#   script.sh a.example.com              - prompt for service and action

#   script.sh a.example.com smbd         - prompt for action

#   script.sh a.example.com smbd restart - prompt for nothing



hosts=(a.example.com b.example.com c.example.com)

services=(apache2 mysql smbd)

actions=(stop start restart)



if [[ 3 -eq $# ]]; then

  ssh "$1" "sudo service $2 $3"

  exit $?

fi



if [[ 2 -eq $# ]]; then

  select action in "${actions[@]}" "Quit"; do

    if [[ "Quit" == "$action" ]]; then

      break

    fi

    ssh "$1" "sudo service $2 $action"

  done

  exit $?

fi



if [[ 1 -eq $# ]]; then

  select svc in "${services[@]}" "Quit"; do

    select action in "${actions[@]}" "Back" "Quit"; do

      if [[ "Back" == "$action" ]]; then

        break

      elif [[ "Quit" == "$action" ]]; then

        break 2

      fi

      ssh "$1" "sudo service $svc $action"

    done

  done

  exit $?

fi



select host in "${hosts[@]}" "Quit"; do

  select svc in "${services[@]}" "Quit"; do

    select action in "${actions[@]}" "Hosts" "Services" "Quit"; do

      if [[ "Services" == "$action" ]]; then

        break

      elif [[ "Hosts" == "$action" ]]; then

        break 2

      elif [[ "Quit" == "$action" ]]; then

        break 3

      fi

      ssh "$host" "sudo service $svc $action"

    done

  done

done