Failing k8s integration test: TestKubernetesAgentStandalone/drop_ALL_add_CHOWN,_SETPCAP_capabilities_-_rootless_agent

[ycombinator]

Example failure: https://buildkite.com/elastic/elastic-agent/builds/10958#01913488-f3f6-4c89-9b69-a9133824db90

=== FAIL: testing/integration TestKubernetesAgentStandalone/drop_ALL_add_CHOWN,_SETPCAP_capabilities_-_rootless_agent (99.69s)
  | kubernetes_agent_standalone_test.go:277: elastic-agent never reported healthy: command terminated with exit code 1
  | kubernetes_agent_standalone_test.go:278: stdout: ┌─ fleet
  | │  └─ status: (STOPPED) Not enrolled into Fleet
  | └─ elastic-agent
  | ├─ status: (DEGRADED) 1 or more components/units in a degraded state
  | └─ system/metrics-default
  | ├─ status: (HEALTHY) Healthy: communicating with pid '81'
  | └─ system/metrics-default-system-metrics
  | └─ status: (DEGRADED) Error fetching data for metricset system.process: Not enough privileges to fetch information: Not enough privileges to fetch information: non fatal error fetching PID some info for 13, metrics are valid, but partial: non-fatal error fetching PID metrics for 13, metrics are valid, but partial: Not enough privileges to fetch information: /io unavailable; if running inside a container, use SYS_PTRACE: error fetching IO metrics: open /proc/13/io: permission denied
  |  
  | kubernetes_agent_standalone_test.go:279: stderr:
  | kubernetes_agent_standalone_test.go:347: Wrote container elastic-agent-standalone of pod elastic-agent-standalone-xmt88 logs to /opt/buildkite-agent/builds/bk-agent-prod-gcp-1723161759733813737/elastic/elastic-agent/build/k8s-logs-v1.29.4-kubernetes-amd64--kubernetes.integration/TestKubernetesAgentStandalone/drop_ALL_add_CHOWN,_SETPCAP_capabilities_-_rootless_agent-elastic-agent-standalone-xmt88-elastic-agent-standalone.log
  | kubernetes_agent_standalone_test.go:347: Wrote container kube-state-metrics of pod kube-state-metrics-5464659c6f-869q8 logs to /opt/buildkite-agent/builds/bk-agent-prod-gcp-1723161759733813737/elastic/elastic-agent/build/k8s-logs-v1.29.4-kubernetes-amd64--kubernetes.integration/TestKubernetesAgentStandalone/drop_ALL_add_CHOWN,_SETPCAP_capabilities_-_rootless_agent-kube-state-metrics-5464659c6f-869q8-kube-state-metrics.log

[elasticmachine]

Pinging @elastic/elastic-agent-control-plane (Team:Elastic-Agent-Control-Plane)

[ycombinator]

PRs to fix are up:

• [agentbeat] Fix agentbeat capabilities beats#40466
• [docker][agentbeat]: add cap_sys_ptrace and cap_dac_override in permitted set #5271

[ycombinator]

Please remember to revert #5293 once this test is fixed.