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When creating a user with an encrypted password with a startup-config, Truncation occurs #2160

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lostdave opened this issue Aug 5, 2024 · 3 comments

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@lostdave
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lostdave commented Aug 5, 2024

Steps to reproduce:
Created a topology that included some Junos vSwitch images -> Added a block config in the topology file -> the resultant encrypted password (if if contained . or / characters) would truncate.

startup-config: |
  system {
    login {
      user someuser {
        class super-user;
        authentication {
          encrypted-password "$6$8gNjhXy6$Vj69F.QdM.Nvz1fDDYhnwb27cMSXJmXxS23ti50z/liD3obqPRYs5UKHVbKFRtqZO.AoXJIVR6Um17RFfSwWm1"
        }
      }
    }
  }

What winds up happening is the encrypted password appears as ".QdM.Nvz1fDDYhnwb27cMSXJmXxS23ti50z/liD3obqPRYs5UKHVbKFRtqZO.AoXJIVR6Um17RFfSwWm1"

ContainerLab Version 0.56.0

@hellt
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hellt commented Aug 28, 2024

Hi @lostdave
containerlab/vrnetlab do not modify the contents of the provided startup config.

The way it works with junos is an disk with the startup-config is mounted to the VM, and junos should read the config from it

https://github.com/hellt/vrnetlab/blob/master/vjunosswitch/docker/make-config.sh

I suppose you should check the contents of that disk to verify that the encrypted string is there as it was in the yaml file

@hellt
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hellt commented Aug 28, 2024

buuuut, I think what could have happened is that containerlab tried to expand variables :D $6, etc

Would you mind to try using the startup-config with a file, and not as embedded multiline string to confirm this theory?

@lostdave
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Sorry ....slow to get back to this one..travel and training stuff....
i will have a look in the next couple of weeks and see what is going on

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