Missing perl dependency

[alexanderilyin]

pmp-check-mysql-status requires perl to show help:

$ docker run --rm anchorfree/percona-nagios-plugins /usr/lib64/nagios/plugins/pmp-check-mysql-status
Error: you must specify either -c or -w. Try --help.

$ docker run --rm anchorfree/percona-nagios-plugins /usr/lib64/nagios/plugins/pmp-check-mysql-status --help
/usr/lib64/nagios/plugins/pmp-check-mysql-status: line 47: perl: command not found

Just faced with this after putting tools into fresh centos based container. After installing perl it works:

$ docker run --rm anchorfree/percona-nagios-plugins /usr/lib64/nagios/plugins/pmp-check-mysql-status --help
  Usage: pmp-check-mysql-status [OPTIONS]
  Options:
    -c CRIT         Critical threshold.
    --defaults-file FILE Only read mysql options from the given file.
                    Defaults to /etc/nagios/mysql.cnf if it exists.
    -C COMPARE      Comparison operator to apply to -c and -w.
                    Possible values: == != >= > < <=. Default >=.
    -H HOST         MySQL hostname.
    -I INCR         Make SHOW STATUS incremental over this delay.
    -l USER         MySQL username.
    -L LOGIN-PATH   Use login-path to access MySQL (with MySQL client 5.6).
    -o OPERATOR     The operator to apply to -x and -y.
    -p PASS         MySQL password.
    -P PORT         MySQL port.
    -S SOCKET       MySQL socket file.
    -T TRANS        Transformation to apply before comparing to -c and -w.
                    Possible values: pct str.
    -w WARN         Warning threshold.
    -x VAR1         Required first status or configuration variable.
    -y VAR2         Optional second status or configuration variable.
    --help          Print help and exit.
    --version       Print version and exit.
  Options must be given as --option value, not --option=value or -Ovalue.
  Use perldoc to read embedded documentation with more details.