Ambassador crashes when there are duplicate mappings

[concaf]

Config that looks like -

      apiVersion: ambassador/v0
      kind:  Mapping
      name:  httpbin_mapping
      prefix: /httpbin-1/
      service: httpbin.org:80
      host: tls-context-host-1
      host_rewrite: httpbin.org
      ---
      apiVersion: ambassador/v0
      kind:  Mapping
      name:  httpbin_mapping
      prefix: /httpbin-2/
      service: httpbin.org:80
      host: tls-context-host-2
      host_rewrite: httpbin.org

crashes Ambassador, and the pod goes in CrashLoopBackOff state. This happens because both the mappings are named the same (httpbin_mapping in this case)

Ambassador should report the error and continue on, instead.

[kflynn]

I already have a partial fix for this.

[kflynn]

Fixed in RC7.