We have rolled out a new agent 1.6.3 release build with the new CA certs: https://github.com/logdna/logdna-agent/releases/tag/1.6.3
Customers running Debian & Ubuntu 16.04+ can use this version to fix the connection issue. This Debian package is a hotfix to release a new version of the docker image to enable ingestion for all our Kubernetes users. Other fixes will follow for Ubuntu 14.04 and the rest of the native clients.
For customers running Ubuntu 16.04 API, please run the following:
If your Kubernetes ingestion on logdna/logdna-agent:latest (our v1 ingestion client) is having this connection issue, please delete all the pods and things should start working again. We have pushed a new version of this docker image to docker hub.