827c49ca00
* adding test coverage for preflight.RunPreflights() TDD to work on https://github.com/replicatedhq/troubleshoot/issues/906 and verify the fix is successful * go.mod/go.sum: removing gnomock stuff since it's not in use (yet) * Makefile: try running the preflight integration test with the e2e tests, since there's a K3s instance in place already * Makefile add a dedicated test-integration task, which runs as it's own github action job * Makefile: exclude a few things from test-integration that break the github action job * WIP on preflight tests, addressing some of @banjoh's feedback, more to go though (specifically changing over to using assert) * preflight tests: use the testify libraries, restructure code to be formatted more like other tests in this project
Replicated Troubleshoot
Replicated Troubleshoot is a framework for collecting, redacting, and analyzing highly customizable diagnostic information about a Kubernetes cluster. Troubleshoot specs are created by 3rd-party application developers/maintainers and run by cluster operators in the initial and ongoing operation of those applications.
Troubleshoot provides two CLI tools as kubectl plugins (using Krew): kubectl preflight and kubectl support-bundle. Preflight provides pre-installation cluster conformance testing and validation (preflight checks) and support-bundle provides post-installation troubleshooting and diagnostics (support bundles).
Preflight Checks
Preflight checks are an easy-to-run set of conformance tests that can be written to verify that specific requirements in a cluster are met.
To run a sample preflight check from a sample application, install the preflight kubectl plugin:
curl https://krew.sh/preflight | bash
and run, where https://preflight.replicated.com provides an example preflight spec:
kubectl preflight https://preflight.replicated.com
NOTE this is an example. Do not use to validate real scenarios.
For more details on creating the custom resource files that drive preflight checks, visit creating preflight checks.
Support Bundle
A support bundle is an archive that's created in-cluster, by collecting logs and cluster information, and executing specified commands (including redaction of sensitive information). After creating a support bundle, the cluster operator will normally deliver it to the 3rd-party application vendor for analysis and disconnected debugging. Another Replicated project, KOTS, provides k8s apps an in-cluster UI for processing support bundles and viewing analyzers (as well as support bundle collection).
To collect a sample support bundle, install the troubleshoot kubectl plugin:
curl https://krew.sh/support-bundle | bash
and run, where https://support-bundle.replicated.com provides an example support bundle spec:
kubectl support-bundle https://support-bundle.replicated.com
NOTE this is an example. Do not use to validate real scenarios.
For more details on creating the custom resource files that drive support-bundle collection, visit creating collectors and creating analyzers.
And see our other tool sbctl that makes it easier to interact with support bundles using kubectl commands you already know
Community
For questions about using Troubleshoot, there's a Replicated Community forum, and a #app-troubleshoot channel in Kubernetes Slack.
Software Bill of Materials
A signed SBOM that includes Troubleshoot dependencies is included in each release.
- troubleshoot-sbom.tgz contains a software bill of materials for Troubleshoot.
- troubleshoot-sbom.tgz.sig is the digital signature for troubleshoot-sbom.tgz
- key.pub is the public key from the key pair used to sign troubleshoot-sbom.tgz
The following example illustrates using cosign to verify that troubleshoot-sbom.tgz has not been tampered with.
$ cosign verify-blob -key key.pub -signature troubleshoot-sbom.tgz.sig troubleshoot-sbom.tgz
Verified OK