Debugging
Startup Failure
If your Posit Connect pod is failing to start, use the kubectl describe
command to get its diagnostic information:
kubectl describe pod -l app.kubernetes.io/name=rstudio-connect
It’s possible for the pod’s Events
to indicate an error. In this case, we can see that the Posit Connect pod is failing to start and Kubernetes is repeatedly attempting to restart it.
Name: connect-rstudio-connect-79f459f647-8rxzd
...
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 4m12s default-scheduler Successfully assigned rsc-dev/connect-rstudio-connect-79f459f647-8rxzd to docker-desktop
Warning FailedMount 4m12s kubelet MountVolume.SetUp failed for volume "graphite-exporter-config" : failed to sync configmap cache: timed out waiting for the condition
Warning FailedMount 4m12s kubelet MountVolume.SetUp failed for volume "rstudio-connect-config" : failed to sync configmap cache: timed out waiting for the condition
Normal Pulled 4m9s kubelet Container image "prom/graphite-exporter:v0.9.0" already present on machine
Normal Created 4m9s kubelet Created container exporter
Normal Started 4m8s kubelet Started container exporter
Normal Pulled 3m24s (x4 over 4m9s) kubelet Container image "rstudio/rstudio-connect:1.8.6.2" already present on machine
Normal Created 3m24s (x4 over 4m9s) kubelet Created container connect
Normal Started 3m24s (x4 over 4m9s) kubelet Started container connect Warning BackOff 2m44s (x8 over 4m5s) kubelet Back-off restarting failed container
If the container fails, you can check the logs of the failed container. This can be done with the following command:
kubectl logs -f --tail 50 \
-l app.kubernetes.io/name=rstudio-connect \
--container connect
In Connect’s logs, we can see that the container is failing to start because Connect cannot reach our Postgres database:
2021/08/04 17:54:55 Configuring licensing to use a local license...
2021/08/04 17:54:55 Using the normalized Server.Address: https://connect.rstudio.com/
2021/08/04 17:54:56 Detected Python version 3.6.5 at /opt/python/3.6.5/bin/python3.6
2021/08/04 17:54:56 Detected R version 3.6.2 at /opt/R/3.6.2/bin/R
2021/08/04 17:54:56 Detected R version 3.6.2 at /opt/R/3.6.2/lib/R/bin/R
2021/08/04 17:54:56 Error: Unable to initialize a connection to the core database: Unable to connect to core DB: dial tcp: lookup postgres.rstudio.com on 10.96.0.10:53: no such host
Deactivating license ...
+ deactivate
+ echo 'Deactivating license ...' + /opt/rstudio-connect/bin/license-manager deactivate