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|
import yaml
testinfra_hosts = ["prometheus"]
def read_yaml_file(host, path):
target = host.file(path)
assert target.exists
return yaml.safe_load(target.content_string)
def get_group_by_labels(groups, labels):
for group in groups:
if group.get("labels", {}) == labels:
return group
raise AssertionError(f"Missing target group with labels {labels!r}")
def get_unlabeled_group(groups):
for group in groups:
if group.get("labels", {}) == {}:
return group
raise AssertionError("Missing unlabeled target group")
def has_group_with_labels(groups, labels):
return any(group.get("labels", {}) == labels for group in groups)
def test_yaml_bootstrap_adds_first_host_to_empty_file(host):
assert read_yaml_file(host, "/opt/yaml_bootstrap.yml") == [
{"labels": {"job": "node"}, "targets": ["application:9100"]}
]
def test_yaml_parallel_writes_keep_all_hosts_in_same_group(host):
groups = read_yaml_file(host, "/opt/yaml_parallel.yml")
assert get_group_by_labels(groups, {"job": "node"})["targets"] == [
"existing:9100",
"application:9100",
"application2:9100",
"application3:9100",
"application4:9100",
]
assert get_group_by_labels(groups, {"job": "alternate"})["targets"] == [
"application:9300",
"application2:9300",
"application3:9300",
"application4:9300",
]
second_groups = read_yaml_file(host, "/opt/yaml_parallel_second.yml")
assert get_group_by_labels(second_groups, {"job": "node"})["targets"] == [
"existing:9100",
"application:9200",
"application2:9200",
"application3:9200",
"application4:9200",
]
def test_yaml_user_edited_file_is_reparsed_and_keeps_expected_semantics(host):
groups = read_yaml_file(host, "/opt/yaml_user_edited.yml")
assert get_group_by_labels(groups, {"severity": "warning", "job": "external"})[
"targets"
] == ["existing_host1:9100", "application2:9100"]
assert get_group_by_labels(groups, {"severity": "critical", "team": "blue"})[
"targets"
] == ["application2:9200"]
assert get_unlabeled_group(groups)["targets"] == ["unlabeled:9100", "standalone:9300"]
def test_yaml_moving_host_removes_last_host_from_old_group(host):
groups = read_yaml_file(host, "/opt/yaml_move_remove_last.yml")
assert not has_group_with_labels(groups, {"job": "old"})
assert get_group_by_labels(groups, {"job": "new"})["targets"] == ["application:9400"]
def test_yaml_output_remains_parseable_after_all_operations(host):
for path in [
"/opt/yaml_bootstrap.yml",
"/opt/yaml_parallel.yml",
"/opt/yaml_parallel_second.yml",
"/opt/yaml_user_edited.yml",
"/opt/yaml_move_remove_last.yml",
"/opt/yaml_branch_matrix.yml",
"/opt/yaml_missing_labeled.yml",
"/opt/yaml_missing_unlabeled.yml",
"/opt/yaml_defaults.yml",
"/opt/yaml_no_id.yml",
"/opt/yaml_override.yml",
"/opt/yaml_null.yml",
"/opt/yaml-prefix/default-prefix.yml",
"/opt/yaml_state_removal.yml",
]:
assert read_yaml_file(host, path) is not None
def test_yaml_branch_matrix_covers_exact_match_and_append(host):
groups = read_yaml_file(host, "/opt/yaml_branch_matrix.yml")
assert get_group_by_labels(groups, {"job": "append", "env": "prod"})["targets"] == [
"existing_append:9500",
"application3:9506",
]
assert get_group_by_labels(groups, {"job": "present", "env": "prod"})["targets"] == [
"application3:9501"
]
def test_yaml_branch_matrix_keeps_nonmatching_groups_for_both_label_mismatch_paths(host):
groups = read_yaml_file(host, "/opt/yaml_branch_matrix.yml")
assert get_group_by_labels(groups, {"job": "wrong", "env": "prod"})["targets"] == [
"keep_same_length:9500"
]
assert get_group_by_labels(groups, {"job": "short"})["targets"] == [
"keep_length_mismatch:9500"
]
assert get_group_by_labels(groups, {"job": "foreign"})["targets"] == ["foreign:9505"]
def test_yaml_branch_matrix_moves_hosts_and_drops_emptied_groups(host):
groups = read_yaml_file(host, "/opt/yaml_branch_matrix.yml")
assert not has_group_with_labels(groups, {"job": "move_source"})
assert get_group_by_labels(groups, {"job": "move_target"})["targets"] == [
"application3:9502"
]
assert get_group_by_labels(groups, {"job": "promoted"})["targets"] == [
"orphan_unlabeled:9503"
]
def test_yaml_branch_matrix_preserves_unlabeled_group_when_targets_remain(host):
groups = read_yaml_file(host, "/opt/yaml_branch_matrix.yml")
assert get_unlabeled_group(groups)["targets"] == [
"shared_unlabeled:9504",
"standalone_branch:9504",
]
def test_yaml_branch_matrix_creates_missing_file_groups_for_labeled_and_unlabeled_targets(host):
assert read_yaml_file(host, "/opt/yaml_missing_labeled.yml") == [
{"labels": {"team": "infra"}, "targets": ["application4:9600"]}
]
assert read_yaml_file(host, "/opt/yaml_missing_unlabeled.yml") == [
{"targets": ["application4:9601"]}
]
def test_yaml_exporter_defaults_merge_labels_and_deduplicate(host):
groups = read_yaml_file(host, "/opt/yaml_defaults.yml")
assert get_group_by_labels(
groups, {"job": "inherited", "environment": "staging"}
)["targets"] == ["application:9700"]
assert get_group_by_labels(groups, {"job": "default"})["targets"] == [
"appended-default:9701"
]
def test_yaml_exporter_without_id_and_item_overrides(host):
assert read_yaml_file(host, "/opt/yaml_no_id.yml") == [
{"labels": {"job": "no-id"}, "targets": ["no-id:9700"]}
]
assert read_yaml_file(host, "/opt/yaml_override.yml") == [
{"labels": {"job": "override"}, "targets": ["item-override:9700"]}
]
assert read_yaml_file(host, "/opt/yaml-prefix/default-prefix.yml") == [
{"labels": {"job": "prefixed"}, "targets": ["prefixed-default:9702"]}
]
def test_yaml_null_document_is_initialized(host):
assert read_yaml_file(host, "/opt/yaml_null.yml") == [
{"targets": ["from-null:9700"]}
]
def test_yaml_skip_default_exporters(host):
target = host.file("/opt/yaml_skipped.yml")
assert target.exists
assert target.content_string == ""
def test_yaml_absent_removes_exporters_and_empty_groups(host):
assert read_yaml_file(host, "/opt/yaml_state_removal.yml") == [
{
"labels": {"job": "shared"},
"targets": ["keep:9100"],
},
]
assert not host.file("/opt/yaml_state_missing.yml").exists
|
