RDRAND failure on Arista switch

[weyrick]

Exception on startup. Both docker and appimage builds

[weyrick]

[2021-07-06 17:40:28.832] [pktvisor] [info] pktvisor 3.2.1 starting up
[2021-07-06 17:40:28.832] [pktvisor] [info] Load input plugin: PcapInputModulePlugin dev.visor.module.input/1.0
[2021-07-06 17:40:28.832] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)
[2021-07-06 17:40:28.833] [pktvisor] [info] Load handler plugin: DnsHandler dev.visor.module.handler/1.0
[2021-07-06 17:40:28.833] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)/handlers/dns/(\w+)
[2021-07-06 17:40:28.833] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)/handlers/dns/(\w+)/bucket/(\d+)
[2021-07-06 17:40:28.833] [pktvisor] [info] Load handler plugin: NetHandler dev.visor.module.handler/1.0
[2021-07-06 17:40:28.833] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)/handlers/net/(\w+)
[2021-07-06 17:40:28.833] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)/handlers/net/(\w+)/bucket/(\d+)
[2021-07-06 17:40:28.833] [pktvisor] [info] Load handler plugin: PcapHandler dev.visor.module.handler/1.0
[2021-07-06 17:40:28.833] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)/handlers/pcap/(\w+)
[2021-07-06 17:40:28.834] [pktvisor] [info] Registering GET /api/v1/inputs/pcap/(\w+)/handlers/pcap/(\w+)/bucket/(\d+)
[2021-07-06 17:40:28.834] [pktvisor] [info] Initialize server control plane
[2021-07-06 17:40:28.834] [pktvisor] [info] Registering GET /api/v1/metrics/app
[2021-07-06 17:40:28.834] [pktvisor] [info] Registering GET /api/v1/metrics/rates
[2021-07-06 17:40:28.834] [pktvisor] [info] Registering GET /api/v1/metrics/bucket/(\d+)
[2021-07-06 17:40:28.834] [pktvisor] [info] Registering GET /api/v1/metrics/window/(\d+)
[2021-07-06 17:40:28.834] [pktvisor] [info] sending anonymous usage metrics (once/day, use --no-track to disable): 1.2.3.pktvisord.metrics.pktvisor.dev.
[2021-07-06 17:40:28.960] [pktvisor] [error] random_device: rdrand failed
[2021-07-06 17:40:28.960] [pktvisor] [info] exit with failure

[weyrick]

https://gns3.com/marketplace/appliances/arista-veos

[weyrick]

the use of hardware instruction for entropy was not necessary as we do not need cryptographically secure entropy for the deep packet sampler. switch to a simpler, fast pseudorandom number generator