BIND 10 #1520: bindctl config show all errors about optional parameter

[BIND 10 Development]

#1520: bindctl config show all errors about optional parameter
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                   Reporter:  jreed  |                 Owner:
                       Type:         |                Status:  new
  defect                             |             Milestone:  Year 3 Task
                   Priority:  low    |  Backlog
                  Component:  bind-  |            Resolution:
  ctl                                |             Sensitive:  0
                   Keywords:         |           Sub-Project:  Core
            Defect Severity:  N/A    |  Estimated Difficulty:  0
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jaspain):

 The error is reproducible with all `bind10` modules running as `root`.

 {{{
 root at ns0:~# ps -aef | egrep 'b10|bind'
 root      2020  1964  1 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/sbin/bind10
 root      2021  2020  0 23:04 pts/0    00:00:00 b10-sockcreator
 root      2022  2020  0 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-msgq
 root      2023  2020  0 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-cfgmgr
 root      2024  2020  0 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-zonemgr
 root      2025  2020  0 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-stats
 root      2026  2020  0 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-xfrin
 root      2027  2020  1 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-cmdctl
 root      2028  2020  0 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-xfrout
 root      2029  2020  1 23:04 pts/0    00:00:00 /usr/bin/python3
 /usr/libexec/bind10-devel/b10-stats-httpd
 root      2030  2020  0 23:04 pts/0    00:00:00 b10-auth
 root      2036  1964  0 23:04 pts/0    00:00:00 egrep --color=auto
 b10|bind
 root at ns0:~# bindctl
 ["login success "] login as root
 > config show all
 Error: Boss/components/b10-xfrin/params not found
 > config show Boss/components/b10-xfrin
 Boss/components/b10-xfrin/special       null    string
 Boss/components/b10-xfrin/process       null    string
 Boss/components/b10-xfrin/kind  "dispensable"   string  (default)
 Boss/components/b10-xfrin/address       "Xfrin" string  (default)
 Boss/components/b10-xfrin/params/       list
 Boss/components/b10-xfrin/priority      null    integer
 > config show Boss/components/b10-xfrin/params
 Error: Boss/components/b10-xfrin/params not found
 }}}

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Ticket URL: <http://bind10.isc.org/ticket/1520#comment:4>
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