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Adds falco-exporter to the integration test #19

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Oct 16, 2024
Merged

Adds falco-exporter to the integration test #19

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62 changes: 60 additions & 2 deletions tests/integration/test_falco.py
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,26 @@ def _get_event_generator_helm_cmd():
)


def _get_falco_exporter_helm_cmd(instance: harness.Instance):
falco_exporter_rock = env_util.get_build_meta_info_for_rock_version(
"falco-exporter", "0.8.7", "amd64"
)

images = [
k8s_util.HelmImage(falco_exporter_rock.image),
]

return k8s_util.get_helm_install_command(
"falco-exporter",
"falco-exporter",
namespace="falco",
repository="https://falcosecurity.github.io/charts",
images=images,
runAsUser=0,
split_image_registry=True,
)


def _get_falcosidekick_helm_cmd():
falcosidekick_rock = env_util.get_build_meta_info_for_rock_version(
"falcosidekick", "2.29.0", "amd64"
Expand Down Expand Up @@ -79,6 +99,10 @@ def _get_falco_helm_cmd(falco_version: str):

set_configs = [
"driver.kind=modern_ebpf",
# required for the falco-exporter.
# https://github.com/falcosecurity/charts/tree/master/charts/falco-exporter#falco-exporter-helm-chart
"falco.grpc.enabled=true",
"falco.grpc_output.enabled=true",
]

return k8s_util.get_helm_install_command(
Expand All @@ -93,6 +117,33 @@ def _get_falco_helm_cmd(falco_version: str):
)


def _assert_falco_exporter_up(instance: harness.Instance):
# Assert that falco-exporter is responsive. The falco-exporter image is a bare image,
# so, we're using the falco Pod to curl the falco-exporter endpoint instead.
LOG.info("Checking if falco-exporter is being responsive.")
process = instance.exec(
[
"k8s",
"kubectl",
"--namespace",
"falco",
"exec",
f"{constants.K8S_DAEMONSET}/falco",
"--",
"curl",
"-s",
"http://falco-exporter:9376/metrics",
],
check=True,
capture_output=True,
text=True,
)

assert (
"Total number of scrapes" in process.stdout
), "Expected falco-exporter to return metrics."


def _assert_falcosidekick_up(instance: harness.Instance):
# Assert that falcosidekick is responsive. It has a ping method, to which we should get pong.
# The falcosidekick image does not have curl or wget, but the falco image does.
Expand Down Expand Up @@ -178,8 +229,14 @@ def test_integration_falco(function_instance: harness.Instance, image_version):
# Deploy falcosidekick helm chart and wait for it to become active.
function_instance.exec(_get_falcosidekick_helm_cmd())

# Wait for the daemonset to become Active.
k8s_util.wait_for_daemonset(function_instance, "falco", "falco", retry_times=10)
# Deploy falco-exporter helm chart and wait for it to become active.
function_instance.exec(_get_falco_exporter_helm_cmd(function_instance))

# Wait for the daemonsets to become Active.
for daemonset in ["falco", "falco-exporter"]:
k8s_util.wait_for_daemonset(
function_instance, daemonset, "falco", retry_times=10
)

# Wait for the deployments to become Active.
for deployment in ["falcosidekick", "falcosidekick-ui"]:
Expand All @@ -202,3 +259,4 @@ def test_integration_falco(function_instance: harness.Instance, image_version):

_assert_falco_logs(function_instance)
_assert_falcosidekick_up(function_instance)
_assert_falco_exporter_up(function_instance)
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