Troubleshoot Core Operator

Depending on your installation, you can use Chronosphere Telemetry Pipeline, Helm, or kubectl's command-line tools to diagnose and resolve issues with your Core Operator and Instance installation.

Troubleshooting Core Operator

If you use Pipeline CLI to install Core Operator and get the following error message, you're probably using an older version of Pipeline CLI:

calyptia: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by calyptia)
calyptia: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by calyptia)

Core Operator operations can only be carried out with Pipeline CLI version 1.4.7 or later. You will need to upgrade Pipeline CLI.

Verifying your Core Operator Installation

You can examine the logs of your Core Operator installation to verify that your installation is successful and to diagnose any issues you may encounter using Pipeline CLI.

kubectl logs deploy/calyptia-core-controller-manager

Logs for successfully installed Core Operator looks like this:

{"level":"info","ts":"2023-09-19T07:24:55Z","logger":"controller-runtime.metrics","msg":"Metrics server is starting to listen","addr":":8080"}
{"level":"info","ts":"2023-09-19T07:24:55Z","logger":"setup","msg":"Successfully started","controller":"Deployment"}
{"level":"info","ts":"2023-09-19T07:24:55Z","logger":"setup","msg":"Successfully started","controller":"DaemonSet"}
{"level":"info","ts":"2023-09-19T07:24:55Z","logger":"setup","msg":"Successfully started","controller":"Secret"}
{"level":"info","ts":"2023-09-19T07:24:55Z","logger":"setup","msg":"starting manager"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting server","path":"/metrics","kind":"metrics","addr":"[::]:8080"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting server","kind":"health probe","addr":"[::]:8081"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"daemonset","controllerGroup":"apps","controllerKind":"DaemonSet","source":"kind source: *v1.DaemonSet"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting Controller","controller":"daemonset","controllerGroup":"apps","controllerKind":"DaemonSet"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline","source":"kind source: *v1.Pipeline"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline","source":"kind source: *v1.Deployment"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline","source":"kind source: *v1.DaemonSet"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline","source":"kind source: *v1.ConfigMap"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline","source":"kind source: *v1.Service"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting Controller","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"deployment","controllerGroup":"apps","controllerKind":"Deployment","source":"kind source: *v1.Deployment"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting Controller","controller":"deployment","controllerGroup":"apps","controllerKind":"Deployment"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting EventSource","controller":"secret","controllerGroup":"","controllerKind":"Secret","source":"kind source: *v1.Secret"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting Controller","controller":"secret","controllerGroup":"","controllerKind":"Secret"}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting workers","controller":"daemonset","controllerGroup":"apps","controllerKind":"DaemonSet","worker count":1}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting workers","controller":"deployment","controllerGroup":"apps","controllerKind":"Deployment","worker count":1}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting workers","controller":"secret","controllerGroup":"","controllerKind":"Secret","worker count":1}
{"level":"info","ts":"2023-09-19T07:24:55Z","msg":"Starting workers","controller":"pipeline","controllerGroup":"core.calyptia.com","controllerKind":"Pipeline","worker count":1}

Troubleshooting Core Installation

A Core instance is a single deployment with two containers that synchronizes pipeline resources between both the Cloud API and the cluster.

to-cloud container pushes every newly created/updated pipeline to Cloud API and ensures that namespaces from the cluster are synchronized with Cloud API.
from-cloud container pulls all pipelines from CloudAPI and pushes them to the cluster as Pipeline Custom Resources.

To get a list of your core instances, use the following command:

calyptia get core_instances

You should get a list of your core instances from where you can see your running, failed, and unreachable instances.

The results will be similar to the following:

NAME           VERSION ENVIRONMENT PIPELINES TAGS STATUS      AGE
coreinstance01 v1.0.10 default     1              running     4 minutes
coretesting    v1.0.10 default     1              unreachable 5 minutes

The coretesting instance is unreachable, and coreinstance01 is running.

To obtain more details about your core instance, you can view the logs using kubectl logs from each container by specifying your core instance's container name with your pod name.

kubectl logs {CORE_POD_NAME} from-cloud

The logs from a running from-cloud sync container look like this:

023-09-25T11:54:58Z    INFO    Sync from Cloud
2023-09-25T11:54:58Z    INFO    found 1 pipelines. Syncing...

2023-09-25T11:54:58Z    INFO    Pipelines found in Cloud but not in the cluster: 0
2023-09-25T11:54:58Z    INFO    Syncing pipeline        {"name": "health-check-9482"}
2023-09-25T11:54:58Z    INFO    Pipeline already exists updating        {"name": "health-check-9482"}
2023-09-25T11:55:13Z    INFO    Sync from Cloud
2023-09-25T11:55:14Z    INFO    found 1 pipelines. Syncing...

2023-09-25T11:55:14Z    INFO    Pipelines found in Cloud but not in the cluster: 0
2023-09-25T11:55:14Z    INFO    Syncing pipeline        {"name": "health-check-9482"}
2023-09-25T11:55:14Z    INFO    Pipeline already exists updating        {"name": "health-check-9482"}
2023-09-25T11:55:28Z    INFO    Sync from Cloud
2023-09-25T11:55:29Z    INFO    found 1 pipelines. Syncing...

2023-09-25T12:28:59Z    INFO    Pipelines found in Cloud but not in the cluster: 0
2023-09-25T12:28:59Z    INFO    Syncing pipeline        {"name": "health-check-9482"}
2023-09-25T12:28:59Z    INFO    Pipeline already exists updating        {"name": "health-check-9482"}
2023-09-25T12:29:13Z    INFO    Sync from Cloud
2023-09-25T12:29:14Z    INFO    found 1 pipelines. Syncing...

2023-09-25T12:31:28Z    INFO    Pipelines found in Cloud but not in the cluster: 0
2023-09-25T12:31:28Z    INFO    Syncing pipeline        {"name": "health-check-9482"}
2023-09-25T12:31:28Z    INFO    Pipeline already exists updating        {"name": "health-check-9482"}

To obtain the logs from your to-cloud sync container, append your container name to the command, similar to the previous section.

kubectl logs {CORE_POD_NAME} to-cloud

The logs from a running to-cloud sync container look like this:

2023-09-25T11:54:58Z    INFO    Namespace created:      {"name": "core-operator"}
2023-09-25T11:54:58Z    INFO    namespace already exists skipping:      {"name": "core-operator"}
2023-09-25T11:54:58Z    INFO    Namespace created:      {"name": "default"}
2023-09-25T11:54:58Z    INFO    namespace already exists skipping:      {"name": "default"}
2023-09-25T11:54:58Z    INFO    Namespace created:      {"name": "kube-node-lease"}
2023-09-25T11:54:58Z    INFO    namespace already exists skipping:      {"name": "kube-node-lease"}
2023-09-25T11:54:58Z    INFO    Namespace created:      {"name": "kube-public"}
2023-09-25T11:54:59Z    INFO    namespace already exists skipping:      {"name": "kube-public"}
2023-09-25T11:54:59Z    INFO    Namespace created:      {"name": "kube-system"}
2023-09-25T11:54:59Z    INFO    namespace already exists skipping:      {"name": "kube-system"}

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