Jaeger preserves the trace data of router healthz endpoints
which is not so helpful for monitoring function metrics and
consumes storage to store such trace data.
This PR uses `GetStartOptions` to examine the request's path and
check if it's a request to healthz endpoint. If yes, skip and not
to trace it.
Helm treats the single line "extraCoreComponentPodConfig" in
values.yaml as a key value pair config.
```
extraCoreComponentPodConfig:
```
And when a user tries to install helm with providing config
like following, it failed.
```
extraCoreComponentPodConfig:
nodeSelector:
serverless: fission
```
The root cause is that helm treats config in default values.yaml
and providing config as two different types of config, which is
key-value vs. value table. And so it's unable for helm to merge these
two configs even with the same key name.
This PR comments out the single line config in default values.yaml
to prevent the issue.
Encoded path means the URL path contains encoded string like "/foo%2Fbar".
Gorilla/Mux by default doesn't enable encoded path support, you need to enable
it when initializing the router.
This PR adds a new environment variable USE_ENCODED_PATH to the router
deployment to enable encoded path support.
ReplicaSet generated by Deployment distributes pods to nodes based
on nodes resource usage, which means in some cases the newly created
pods may be assigned to only a few nodes. The requests will go to the
same node if there multiple pods on it and may increase the node
resource usage and overall request latency.
To solve the problem mentioned above, this PR allows users to deploy
the router as DaemonSet so that we can distribute requests across all
nodes for better workload distribution and lower latency.
This fix allows the empty repository tag in values.yaml file. The changes are done in the templates of deployment and fluentbit where repository tag will be added in the docker image name only when specified with some value in case of empty repository tag image name contain the name of image and tag only.
* Add support for setting nodeSelector/affinity/tolerations on all deployments of fission components.
* Add extraCoreComponmentPodConfig helm value to allow setting of affinty/tolerations/nodeSelectors/etc on core pods
This removes fluentd in favor of using fluentbit, which is lighter (in
memory usage) and seems to be more actively maintained.
Fluentbit's config file format is different from fluentd's. It also
doesn't support the same record modification stuff that fluentd
supports, so we have to change the influxdb query slightly. This
means that after an upgrade, the new CLI may won't work for querying older
logs. Hopefully, this slight breakage is acceptable; if users
really need older logs they can use the older CLI.
Added support for Kafka headers to be passed and retrieved from functions. The headers and supported and work only for Kafka version 0.11.0.0 and higher.
