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sisyphus's Issues

Start action succeeds when sisyphus actually fails to start

I deployed the sisyphus charm and tried running the start action. It said:

ubuntu@chthonic:~/mojo/ua-event-bus/cdo/ua-event-bus/devel/configs$ juju run-action sisyphus/0 start --wait
unit-sisyphus-0:
  id: f1cf54fb-b893-40a1-878d-860303e2f93b
  status: completed
  timing:
    completed: 2019-06-14 16:53:30 +0000 UTC    enqueued: 2019-06-14 16:53:26 +0000 UTC
    started: 2019-06-14 16:53:29 +0000 UTC
  unit: sisyphus/0

However, I ssh'd onto the unit and found it was not running. I added a log line to the start action script to try and find out why, and discovered that sisyphus actually couldn't connect to kafka:

root@juju-ae4f51-8:~# /snap/bin/sisyphus -kafka-brokers 10.231.57.245:9093 -kafka-client-id sisyphus2 -workers 1 -kafka-cert /var/snap/sisyphus/common/client.crt -kafka-key /var/snap/sisyphus/common/client.key -kafka-ca /var/snap/sisyphus/common/ca.crt -config /var/snap/sisyphus/common/config.yaml -log-level DEBUG
{"level":"error","ts":"2019-06-14T17:11:55.582Z","msg":"failed to create kafka client","error":{"msg":"kafka: client has run out of available brokers to talk to (Is your cluster reachable?)"}}

These kinds of errors need to be surfaced when invoking the action. nohup may or may not be sufficient for this purpose. We could use systemd; systemctl disable will prevent sisyphus from auto-starting, while still allowing it to be started and stopped from the action with systemctl start|stop. systemctl is-active and systemctl status could be used to feed back action status.

Fails to join two ids together in Kafka key

Example

{contract-id}-3dd24969-5c2b-49a7-8f99-fbe5d6706a35	{"contractID":"b0eeb577-0ae2-47f8-8e6a-1ce47e0e678f","machineID":"3dd24969-5c2b-49a7-8f99-fbe5d6706a35"}
{contract-id}-f384600b-4b2a-40b6-8c13-42021ff1fb90	{"contractID":"64ce77be-1855-4ccd-82bc-9cb59e1f9634","machineID":"f384600b-4b2a-40b6-8c13-42021ff1fb90"}
{contract-id}-52ea44f1-3835-4294-8e4e-34cb3a57d07c	{"contractID":"99cb14b3-e155-4f65-8ed0-67d4db22b9e1","machineID":"52ea44f1-3835-4294-8e4e-34cb3a57d07c"}
{contract-id}-971e2e05-70fc-4ef1-80da-8f470121025f	{"contractID":"f4cebc87-84cb-4dd7-8b2c-7e76bb10ba57","machineID":"971e2e05-70fc-4ef1-80da-8f470121025f"}

It seems that Sisyphus does not append contractID into the Kafka topic key.

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