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(Venafi Kubernetes Agent
"The agent" manages your machine identities across Cloud Native Kubernetes and OpenShift environments and builds a detailed view of the enterprise security posture.
Installation
Please review the documentation for the agent.
Detailed installation instructions are available for a variety of methods.
Local Execution
To build and run a version from master:
go run main.go agent --agent-config-file ./path/to/agent/config/file.yaml -p 0h1m0s
You can configure the agent to perform one data gathering loop and output the data to a local file:
go run . agent \
--agent-config-file examples/one-shot-secret.yaml \
--one-shot \
--output-path output.json
Some examples of agent configuration files:
You might also want to run a local echo server to monitor requests sent by the agent:
go run main.go echo
Metrics
The agent exposes its metrics through a Prometheus server, on port 8081.
The Prometheus server is disabled by default but can be enabled by passing the --enable-metrics flag to the agent binary.
If you deploy the agent using the venafi-kubernetes-agent Helm chart, the metrics server will be enabled by default, on port 8081.
If you use the Prometheus Operator, you can use --set metrics.podmonitor.enabled=true to deploy a PodMonitor resource,
which will add the venafi-kubernetes-agent metrics to your Prometheus server.
The following metrics are collected:
- Go collector: via the default registry in Prometheus
client_golang. - Process collector: via the default registry in Prometheus
client_golang. - Agent metrics:
data_readings_upload_size: Data readings upload size (in bytes) sent by the in-cluster agent.
End to end testing
An end to end test script is available in the ./hack/e2e/test.sh directory. It is configured to run in CI
in the tests.yaml GitHub Actions workflow. To run the script you will need to add the test-e2e label to the PR.
The script creates a cluster in GKE and cleanups after itself unless the keep-e2e-cluster label is set on the PR. Adding that
label will leave the cluster running for further debugging but it will incur costs so manually delete the cluster when done.