Dell Enterprise SONIC Networking OS

[cryptz2k]

• [X ] I have read and understood docs/Issues.md.

Describe the problem
So to be clear this is Day one of me using oxidized. I was able to get it setup and retrieve cisco, juniper, and dell os10 configurations.

So a good start.

I am unable to sucessfully get the config from a dell switch running sonic. I initially connect to the device and receive an

"admin@switch1-1:~$" prompt.

I then need to type sonic-cli and i will then get a
'switch1-1# ' prompt

where i can issue a show run. the admin @ is dropped.

I have tried putting post_login 'sonic-cli' and also 'sonic-cli\n' but that did not work. The debug log shows it sending the command. instead i get the error below in the logs. of note the prompt with # includes a space after the # but i believe the regex accounts for this. also issueing sonic-cli changes prompt but otherwise generates no output so i am unsure if that is an issue.

i have also tried the regex ^([\w.@-]+[#>]|[\w.@-]+:?~?$)\s?$ which seems to match both where the original didnt but the net result is the same.

Expected behavior
I would hope to retreive the config.

Configuration

i believe the config is ok since it works for all the other models. here is the prompt regex.  prompt: !ruby/regexp /^([\w.@-]+[#>]|[\w.@-]+:~\$)\s?$/

its unclear to me if the prompt regex is needed to account for the ~$ prompt as opposed to the # prompt. I see it supposedly sends the sonic-cli command based on the logs so I assume that means the prompt is sufficient but i could be mistaken.

here is the model file, it is honestly a copy of another with a few edits. again day 1 so i may have something obv wrong. i was a little unsure about the   cfg :telnet, :ssh do section with a post_login section vs the generic post_login section below that. 

class SONICOS < Oxidized::Model
  using Refinements

  # For switches running Dell EMC Sonic #
  #
  # Tested with : Dell PowerSwitch S4148U-ON

  comment  '! '

  cmd :all do |cfg|
    cfg.gsub! /^% Invalid input detected at '\^' marker\.$|^\s+\^$/, ''
    cfg.each_line.to_a[2..-2].join
  end

  cmd :secret do |cfg|
    cfg.gsub! /(password )(\S+)/, '\1<secret hidden>'
    cfg
  end

  #cmd 'show inventory' do |cfg|
   # comment cfg
  #end

  #cmd 'show inventory media' do |cfg|
  #  comment cfg
  #end

  cmd 'show running-configuration' do |cfg|
    cfg.each_line.to_a[3..-1].join
  end

  cfg :telnet do
    username /^Login:/
    password /^Password:/
  end

  cfg :telnet, :ssh do
      post_login do
        send "sonic-cli"
    end
    post_login 'sonic-cli'
    pre_logout 'exit'
    pre_logout 'exit'
  end
end

Logs

D, [2025-03-06T00:10:04.608204 #1931] DEBUG -- : lib/oxidized/input/ssh.rb: Connecting to MONSW-MDF1-1
D, [2025-03-06T00:10:04.608416 #1931] DEBUG -- : AUTH METHODS::["none", "publickey", "password"]
D, [2025-03-06T00:10:04.938186 #1931] DEBUG -- : lib/oxidized/input/ssh.rb: expecting [/^([\w.@-]+[#>]|[\w.@-]+:~\$)\s?$/] at MONSW-MDF1-1
D, [2025-03-06T00:10:05.609165 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:05.940574 #1931] DEBUG -- : lib/oxidized/input/cli.rb: Running post_login commands at MONSW-MDF1-1
D, [2025-03-06T00:10:05.940622 #1931] DEBUG -- : lib/oxidized/input/cli.rb: Running post_login command: nil, block: #<Proc:0x00007248113a0dd8 /opt/oxidized/.config/oxidized/model/sonicos.rb:38> at MONSW-MDF1-1
D, [2025-03-06T00:10:05.940639 #1931] DEBUG -- : lib/oxidized/input/cli.rb: Running post_login command: "sonic-cli", block: nil at MONSW-MDF1-1
D, [2025-03-06T00:10:05.940650 #1931] DEBUG -- : lib/oxidized/input/ssh.rb "sonic-cli" @ MONSW-MDF1-1 with expect: /^([\w.@-]+[#>]|[\w.@-]+:~\$)\s?$/
D, [2025-03-06T00:10:05.940774 #1931] DEBUG -- : lib/oxidized/input/ssh.rb: expecting [/^([\w.@-]+[#>]|[\w.@-]+:~\$)\s?$/] at MONSW-MDF1-1
D, [2025-03-06T00:10:06.610303 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:07.611408 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:08.612555 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:09.613687 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:10.614812 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:11.615919 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:12.617070 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:13.618219 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:14.619346 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:15.620432 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:16.621538 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:17.622618 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:18.623734 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:19.624845 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:20.625945 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:21.627049 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:22.628179 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:23.629301 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:24.630445 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
D, [2025-03-06T00:10:25.631575 #1931] DEBUG -- : lib/oxidized/worker.rb: 1 jobs running in parallel
W, [2025-03-06T00:10:25.941125 #1931]  WARN -- : 192.168.207.5 raised Timeout::Error with msg "execution expired"
D, [2025-03-06T00:10:25.941190 #1931] DEBUG -- : lib/oxidized/node.rb: Oxidized::SSH failed for MONSW-MDF1-1
.

Running environment (please complete the following information):

• OS: [e.g. ubuntu 24.]
• oxidized version: [e.g. 0.32.1]

[cryptz2k]

just wanted to add that i created a new user on the switch and that user bypasses the switch:~$ prompt and does not require sonic-cli to be issued. once that problem was behind me I was able to make a simple model and it works as expected. I suspect I will need to understand what I was doing wrong though in the future so I would still appreciate any assistance with the above issue.

typing sonic-cli basically clears the screen and changes the prompt, I dont know if there are special considerations I need to build out to account for that. i had a similar problem with junos logging in as root and I couldn't get the "cli" command to work properly either so these are very similar and I used the same fix of a new/non-built-in account to sidestep it. Id like better understanding of how to overcome this though.