BBR backup not connecting via ssh through opsmanager proxy. %!h(MISSING) %!p(MISSING)
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BBR backup not connecting via ssh through opsmanager proxy. %!h(MISSING) %!p(MISSING)

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Article ID: 316777

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Updated On:

Products

Ops Manager

Issue/Introduction

Symptoms:
  • You are using BBR (bosh backup and recovery) from a jumpbox to proxy connect to OpsManager
  • The jumpbox has a GNU NetCat version installed as default instead of a OpenBSD version of NetCat
  • You see messages similar to the following when running a BBR backup from the jumpbox:

[14:45:41] Successfully backed up:

[14:45:41] FAILED: service-instance_5fbd1dee-8303-4e46-9fb1-0c16ddb688b6, service-instance_2f68e7a1-2f33-4df0-8822-108d944bb68b, service-instance_588f049d-7dcf-4c42-bdc0-05d2a1ed31c8 3 out of 3 deployments cannot be backed up:

service-instance_5fbd1dee-8303-4e46-9fb1-0c16ddb688b6
service-instance_2f68e7a1-2f33-4df0-8822-108d944bb68b
service-instance_588f049d-7dcf-4c42-bdc0-05d2a1ed31c8

Deployment 'service-instance_5fbd1dee-8303-4e46-9fb1-0c16ddb688b6':
   1 error occurred:
   error 1:
   failed creating artifact directory


Deployment 'service-instance_2f68e7a1-2f33-4df0-8822-108d944bb68b':
   1 error occurred:
   error 1:
   failed creating artifact directory


Deployment 'service-instance_588f049d-7dcf-4c42-bdc0-05d2a1ed31c8':
   1 error occurred:
   error 1:
   failed creating artifact directory

  • You see messages similar to the following when running Boshcli SSH commands to bosh VMs:

Running SSH:
   1 error occurred:

      * Running command: 'ssh -tt -o ServerAliveInterval=30 -o ForwardAgent=no -o PasswordAuthentication=no -o IdentitiesOnly=yes -o IdentityFile=/home/upamadm/.bosh/tmp/ssh-priv-key12345678 -o UserKnownHostsFile=/home/upamadm/.bosh/tmp/ssh-known-hosts359164897 -o ProxyCommand=nc -x 127.0.0.1:33898 %!h(MISSING) %!p(MISSING) -o StrictHostKeyChecking=yes 10.88.1.3 -l bosh_e1881c0b98f148f', stdout: '', stderr: '': exit status 255

Exit code 1


Environment

VMware PKS 1.x

Resolution

This is a known issue with compatibility of BoshCLI and GNU versions of NetCat. The jumpbox or host from where the BBR cli is run should have an OpenBSD version of NetCat.

Note: On Operating Systems like CentOS or Redhat, the default version comes with GNU NetCat, which is not compatible with bosh cli.

To avoid this issue, install an openBSD NetCat version on your BBR jumpbox or host

Additional Information

https://www.openbsd.org/faq/faq4.html

https://github.com/cloudfoundry/bosh-cli/issues/328


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