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@github-actions github-actions released this 05 Sep 13:26
· 314 commits to main since this release
v1.2.0
dc45886

v1.2.0 Releases notes

Upgrade notes

Read the upgrade notes carefully before upgrading Tetragon.
Depending on your setup, changes listed here might require a manual intervention.

Helm Values

  • Tetragon container now uses the gRPC liveness probe by default. To continue using "tetra status" for liveness probe,
    specify tetragon.livenessProbe Helm value. For example:
tetragon:
  livenessProbe:
     timeoutSeconds: 60
     exec:
       command:
       - tetra
       - status
       - --server-address
       - "54321"
       - --retries
       - "5"

  • Deprecated tetragonOperator.skipCRDCreation Helm value is removed. Use crds.installMethod=none instead.

  • tetragon.ociHookSetup Helm value is deprecated. Use tetragon.rthooks instead.

Events (protobuf API)

  • Sensor managing methods have been deprecated:
    • ListSensors
    • EnableSensor
    • DisableSensor
    • RemoveSensor

Metrics

  • tetragon_policyfilter_metrics_total metric is renamed to tetragon_policyfilter_operations_total, and its op
    label is renamed to operation.
  • tetragon_missed_events_total metric is renamed to tetragon_bpf_missed_events_total.
  • Metrics related to ring buffer and events queue are renamed:
    • tetragon_ringbuf_perf_event_errors_total -> tetragon_observer_ringbuf_errors_total
    • tetragon_ringbuf_perf_event_received_total -> tetragon_observer_ringbuf_events_received_total
    • tetragon_ringbuf_perf_event_lost_total -> tetragon_observer_ringbuf_events_lost_total
    • tetragon_ringbuf_queue_received_total -> tetragon_observer_ringbuf_queue_events_received_total
    • tetragon_ringbuf_queue_lost_total -> tetragon_observer_ringbuf_queue_events_lost_total
  • tetragon_errors_total{type="process_cache_evicted"} metric is replaced by tetragon_process_cache_evicted_total.
  • tetragon_errors_total{type=~"process_cache_miss_on_get|process_cache_miss_on_remove"} metrics are replaced by
    tetragon_process_cache_misses_total{operation=~"get|remove"}.
  • tetragon_event_cache_<entry_type>_errors_total metrics are replaced by
    tetragon_event_cache_fetch_failures_total{entry_type="<entry_type>"}.
  • tetragon_event_cache_accesses_total metric is renamed to tetragon_event_cache_inserts_total.
  • tetragon_event_cache_retries_total metric is renamed to tetragon_event_cache_fetch_retries_total.
  • tetragon_errors_total{type="event_missing_process_info"} metric is replaced by
    tetragon_events_missing_process_info_total.
  • tetragon_errors_total{type="handler_error"} metric is removed. Use tetragon_handler_errors_total instead.

Major Changes:

Bugfixes:

  • bpf: use CORE for execve hook (#2399) by @kkourt
  • Don't create PodInfo if the pod is being deleted (#2431) by @michi-covalent
  • tetragon: allow namespaced and non-namespaced policies to have the same name (#2337) by @joshuajorel
  • operator: Don't start metrics server if Helm value tetragonOperator.prometheus.enabled is set to false. (#2484) by @yukinakanaka
  • enforcer: fix issue when using multiple calls with fmod_ret (#2524) by @kkourt
  • Reduce the kernel memory footprint (accounted by the cgroup memory controller) of the stack trace feature when unused. (#2546) by @mtardy
  • Reduce the kernel memory footprint (accounted by the cgroup memory controller) of the ratelimit feature when unused (around ~10MB per kprobe). (#2551) by @mtardy
  • Reduce the kernel memory footprint (accounted by the cgroup memory controller) of the fdinstall feature when unused (around ~11MB per kprobe). (#2563) by @mtardy
  • Do not increase the reference count when we cannot find a parent in kthreads. (#2620) by @tpapagian
  • Reduce the kernel memory footprint (accounted by the cgroup v2 memory controller) of the override feature when unused (around ~3MB per kprobe). (#2692) by @mtardy
  • Fix a bug related to the matchBinaries Prefix operator by increasing the buffer size used by our dentry walk. Now the matchBinaries Prefix operator can correctly trigger a match on any path above 255 chars. (#2764) by @mtardy
  • Fix a bug where the tetra getevents command would timeout even if the connection was successful. (#2765) by @mtardy
  • Fix missing cases in the compact encoder for tetra. (#2819) by @willfindlay
  • add support for pod association via cgroup id (#2776) by @kkourt
  • Allow disabling gRPC either by selecting 'enabled:false' in the helm chart or by passing an empty address to the agent (#2826) by @kkourt
  • Fix tetragon_process_cache_size metric (#2827) by @lambdanis

Minor Changes:

  • proc: set auid to -1 for generated kernel pid 0 (#2400) by @tixxdz
  • Wait for Tetragon's images exist before run test (#2401) by @Trung-DV
  • tetragon: Add cgroup rate support (#2177) by @olsajiri
  • oci-hook: allow users to set a list of namespace exceptions and define default (#2404) by @f1ko
  • test: fix TestTraceKernelModule test (#2433) by @tixxdz
  • tetragon: Add inline function macro (#2452) by @olsajiri
  • helm: Add tetragon.livenessProbe value (#2469) by @michi-covalent
  • tetragon: Use static funcs in few places (#2453) by @olsajiri
  • btf: print original error returned by ebpf btf.TypeByName() (#2458) by @tixxdz
  • tetragon: cache username lookups (#2448) by @tixxdz
  • helm: Remove deprecated tetragon.skipCRDCreation value (#2498) by @lambdanis
  • btf: take first entry on multiple btf validation (#2488) by @tixxdz
  • tetragon: Add LoadProgramOpts function (#2489) by @olsajiri
  • tetragon: Remove bpf_globals object (#2521) by @olsajiri
  • sensors: allow reporting policy status when loading/unloading sensors (#2506) by @kkourt
  • tetragon: Limit max entries of cgroup_rate_map when it's not used (#2555) by @olsajiri
  • tetragon: Factor the maps max entries setup (#2565) by @olsajiri
  • tetragon:username: use login name instead of display name (#2585) by @tixxdz
  • process:bpf: report euid as the process.uid (#2575) by @tixxdz
  • Implement an export filter to target parent process binary name. (#2607) by @willfindlay
  • tetragon: fail if --username-metadata receives invalid value (#2596) by @tixxdz
  • tetragon: resolve uid to username for exec events from /proc fs (#2588) by @tixxdz
  • cmd: Move metrics-docs out of tetra and refactor it (#2611) by @lambdanis
  • Reorg to factor mac entries setup and add a max entries test (#2587) by @olsajiri
  • tetragon: Add debug interface to track cgroups to workload/ns mappings (#2540) by @jrfastab
  • rthooks: support NRI (#2608) by @kkourt
  • helm, doc: Added debug Helm flag for the agent (#2622) by @PhilipSchmid
  • deprecate sensors gRPC API (#2630) by @kkourt
  • helm: Don't give operator permissions to create CRDs if not needed (#2326) by @itsCheithanya
  • store thread leader namespaces at fork and reduce false positives (#2695) by @tixxdz
  • tetragon: make resolving uid to username work with a processapi struct (#2705) by @tixxdz
  • tetra: LSM events compact print support (#2703) by @anfedotoff
  • tetragon: only allow single instance to run on a node (#2747) by @inliquid
  • tetragon: Factor loader tailcall setup (#2719) by @olsajiri
  • tracing: introduce FollowChildren attribute in MatchBinaries selector (#2720) by @kkourt
  • Add missed probes metrics (#1941) by @olsajiri
  • tetragon_policyfilter_metrics_total metric is renamed to tetragon_policyfilter_operations_total, and its op label is renamed to operation. (#2784) by @lambdanis
  • tetragon: persistent monitoring fixes (#2795) by @olsajiri
  • Add the Postfix and NotPostfix operators to the matchBinaries selector. (#2689) by @anfedotoff
  • metrics: Expose go_sched_latencies_seconds (#2802) by @lambdanis
  • tetra: Added dynamic log level change option (#2643) by @PhilipSchmid
  • cgidmap: fix initialization bug (#2829) by @kkourt
  • helm: Add tetragon_pod label to metrics via ServiceMonitor (#2828) by @lambdanis
  • Expose kernel ringbuffer errors in metrics (#2839) by @lambdanis
  • Refactor & rename ringbuf metrics (#2833) by @lambdanis
  • helm: Support adding extra labels to ServiceMonitors (#2830) by @lambdanis
  • metrics: Expose more errors in tetragon_bpf_missed_events_total counter (#2855) by @lambdanis
  • Replace process cache evictions and misses metrics (#2857) by @lambdanis
  • Refactor and rename eventcache metrics (#2861) by @lambdanis
  • Replace missing process info metric (#2863) by @lambdanis
  • Remove tetragon_errors_total{type="handler_error"} metric (#2862) by @lambdanis
  • tetragon: fixes (#2823) by @olsajiri

CI Changes:

  • TestLabelsDemoApp: Replace isovalent/jobs-app by Opentelemetry demo app (#2345) by @Trung-DV
  • renovate: add v1.1 in stable branches in config (#2432) by @mtardy
  • tetragon: debugging map duplication extending prog/map testers (#2455) by @jrfastab
  • Minor improvements to the release process (#2482) by @lambdanis
  • vmtests: deduplicating code using LVH library for arm64 support (#2333) by @mtardy
  • renovate: switch to get Go version from toolchain directive (#2494) by @mtardy
  • renovate: update Go version properly for v1.1 (#2509) by @mtardy
  • renovate: fix Go postUpgradeTasks for stable branches (#2514) by @mtardy
  • renovate: group all go updates together and fix a rule (#2522) by @mtardy
  • docs: ignore some index.html link from link checker (#2526) by @mtardy
  • Increase maximum number of tries in WaitForTracingPolicy (#2547) by @tpapagian
  • Uninstall Tetragon after each e2e test. (#2541) by @tpapagian
  • docs: update docs dev deps for security fixes (#2577) by @mtardy
  • policyfiletr K8s test fix (#2629) by @kkourt
  • rthook: finish renovate config update due to rename (#2655) by @mtardy
  • tests/e2e: clone proto event in rpcchecker (#2688) by @willfindlay
  • workflows: fix the PR link checker script for raw GitHub links (#2712) by @mtardy
  • Increase timeout in WaitForTracingPolicy. (#2755) by @tpapagian
  • CI: Changed lint Helm CI trigger (#2804) by @PhilipSchmid
  • CI: Improved K8s Kubeconformance validation (#2811) by @PhilipSchmid
  • CI: Helm lint: Remove pipenv dependency (#2837) by @PhilipSchmid
  • fork_test: remove pid export filter (#2831) by @kkourt
  • verify.sh: Handle when bpf_verride_return is unavailable (#2838) by @russellb
  • CI: Improve/stabilize lint Helm CI workflow (#2847) by @PhilipSchmid
  • renovate: add 'make metrics-docs' to post upgrade cmds (#2864) by @mtardy

Documentation changes:

Dependency updates:

  • chore(deps): update docker.io/golangci/golangci-lint docker tag to v1.59.0 (main) (#2415) by @cilium-renovate[bot]
  • update github.com/cilium/ebpf (#2717) by @lmb
  • Update Dockerfiles to build clang-18 images (#2814) by @mtardy
  • Upgrade to Cilium 1.16.1 and Kubernetes 1.31.0 (#2820) by @mtardy
  • Revert "Upgrade to Cilium 1.16.1 and Kubernetes 1.31.0" (#2849) by @mtardy
  • chore(deps): update docker.io/golangci/golangci-lint docker tag to v1.60.3 (main) (#2813) by @cilium-renovate[bot]

Misc Changes:

Contributors

spkane, kkourt, and 32 other contributors
Assets 18
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