+++ This bug was initially created as a clone of Bug #1695583 +++

Description of problem:

There are options with incorrect defaults in plugins 'postgresql', 'mysql' and possibly others. These defaults worked correctly despite this in previous versions of sosreport now it causes empty dumps because database access can not be authorized.

Example from postgresql.py:
    option_list = [
        ('pghome', 'PostgreSQL server home directory.', '', '/var/lib/pgsql'),
        ('username', 'username for pg_dump', '', 'postgres'),
        ('password', 'password for pg_dump' + password_warn_text, '', False),
        ('dbname', 'database name to dump for pg_dump', '', ''),
        ('dbhost', 'database hostname/IP (do not use unix socket)', '', ''),
        ('dbport', 'database server port number', '', '5432')
]

the password option expects string to be defined but in the current version in ends up using 'True' when called with '-k postgresql.password=mysecretpassword' instead of using 'mysecretpassword' when calling pg_dump.

Version-Release number of selected component (if applicable):
new unreleased sos-3.7-1.el7.noarch

Additional info:
Other plugins might be affected by this.

--- Additional comment from Pavel Moravec on 2019-04-04 10:47:56 UTC ---

Simple fix here: replace False by ''.

Ant-work fix: to review all plugins for the same: where expected data type does not match the data type of the default value.

--- Additional comment from Miroslav Hradílek on 2019-04-04 10:53:29 UTC ---

With Pavel, we found out that npm.py plugin is also affected

    option_list = [("project_path", 'List npm modules of a project specified by path', 'fast', 0)]

results in

# sosreport -v -v -v -o npm -k npm.project_path=/tmp/tmp.oe3TnQawRH/fake-project --batch < /dev/null 2>&1 | tee /tmp/tmp.acyAUsysyI
set sysroot to '/' (default)
 sosreport (version 3.6)
 Traceback (most recent call last):
   File "/usr/sbin/sosreport", line 19, in <module>
     main(sys.argv[1:])
   File "/usr/lib/python2.7/site-packages/sos/sosreport.py", line 1384, in main
     sos.execute()
   File "/usr/lib/python2.7/site-packages/sos/sosreport.py", line 1334, in execute
     self._set_tunables()
   File "/usr/lib/python2.7/site-packages/sos/sosreport.py", line 659, in _set_tunables
     if not plug.set_option(opt, val):
   File "/usr/lib/python2.7/site-packages/sos/plugins/__init__.py", line 712, in set_option
     value = (defaulttype)(value)
 ValueError: invalid literal for int() with base 10: '/tmp/tmp.oe3TnQawRH/fake-project'