handle maintenance-event

[octu0]

I have added maintenance-event handling

Not Found in current implementation.

$ curl -s -H 'Metadata-Flavour: Google' http://metadata.google.internal/computeMetadata/v1/instance/maintenance-event
Not Found

configuration is as below:

$ cat /path/to/myconfig.json | jq .computeMetadata.v1.instance.maintenanceEvent
"NONE"

In my patch, it returns a json maintenanceEvent

$ curl -s -H 'Metadata-Flavor: Google' http://metadata.google.internal:8080/computeMetadata/v1/instance/maintenance-event
NONE

I am testing the following by launching two implementations, one current and one new

# current
$ gce_metadata_server -configFile /path/to/myconfig.json \
  -serviceAccountFile /path/to/mycredential.json \
  -interface "169.254.169.254" -port ":80" &

# my patch
$ gce_metadata_server -configFile /path/to/myconfig.json \
  -serviceAccountFile /path/to/mycredential.json \
  -interface "169.254.169.254" -port ":8080" &

[octu0]

thank you!

[octu0]

I'm so sorry. please check #43