Troubleshooting Cloud Foundry on OpenStack

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This topic describes helpful tips to deploy Cloud Foundry on OpenStack.

Self-signed SSL Certificates

View these two topics to add your self-signed certificates to the OpenStack CPI and to the virtual machines (VMs) deployed with your BOSH Director:

GRE Tunnels

If you are using OpenStack’s GRE Tunnel networking, the default MTU of 1500 does not allow machines to properly communicate. Garden and Warden use 1500 of MTU by default. You must change the default in your manifest by performing the steps below.

Diego

For operators deploying versions of Cloud Foundry that use the newer Diego architecture, modify the MTU by editing the garden.network_mtu property in your Diego manifest:

garden:
  network_mtu: 1454

Use bosh deploy to push these changes and reboot your Diego cells.

DEA

For operators deploying versions of Cloud Foundry that use the older Droplet Execution Agent (DEA) architecture, modify the MTU by editing the dea_next property in your Cloud Foundry manifest:

dea_next:
  mtu: 1454

Use bosh deploy to push these changes and reboot your Warden / DEA VM.

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