def load(self, manifest: KubeList) -> WattDict:
collected: Dict[str, Dict[str, KubeResource]] = {}
watt_k8s: WattDict = {}
self.logger.info("LOADING:")
for spec in self.watch_specs.values():
self.logger.debug(f"{repr(spec)}")
for obj in manifest:
metadata = obj.get('metadata') or {}
name = metadata.get('name')
if not name:
self.logger.debug(f"skipping unnamed object {obj}")
continue
# self.logger.debug(f"consider {obj}")
for w in self.watch_specs.values():
m = w.match(obj)
if m:
by_type = collected.setdefault(m.kind, {})
# If we already have this object's name in the collection,
# this is a duplicate find.
if name not in by_type:
by_type[name] = obj
# Once that's all done, flatten everything.
for kind in collected.keys():
watt_k8s[kind] = list(collected[kind].values())
self.snapshot = dump_json({
'Consul': {},
'Kubernetes': watt_k8s
},
pretty=True)
return watt_k8s
def main(k8s_yaml_paths: List[str],
debug: bool,
force_pod_labels: bool,
update: bool,
source: List[str],
labels: List[str],
namespace: Optional[str],
watch: str,
include_ir: bool,
include_aconf: bool,
diff_path: Optional[str] = None,
kat_name: Optional[str] = None) -> None:
loglevel = logging.DEBUG if debug else logging.INFO
logging.basicConfig(
level=loglevel,
format="%(asctime)s mockery %(levelname)s: %(message)s",
datefmt="%Y-%m-%d %H:%M:%S")
logger = logging.getLogger('mockery')
logger.debug(f"reading from {k8s_yaml_paths}")
if not source:
source = [
"Host", "service", "ingresses", "AuthService", "LogService",
"Mapping", "Module", "RateLimitService", "TCPMapping",
"TLSContext", "TracingService", "ConsulResolver",
"KubernetesEndpointResolver", "KubernetesServiceResolver"
]
if namespace:
os.environ['AMBASSADOR_NAMESPACE'] = namespace
# Make labels a list, instead of a tuple.
labels = list(labels)
labels_to_force = {l: True for l in labels or []}
if kat_name:
logger.debug(f"KAT name {kat_name}")
# First set up some labels to force.
labels_to_force["scope=AmbassadorTest"] = True
labels_to_force[f"service={kat_name}"] = True
kat_amb_id_label = f"kat-ambassador-id={kat_name}"
if kat_amb_id_label not in labels_to_force:
labels_to_force[kat_amb_id_label] = True
labels.append(kat_amb_id_label)
os.environ['AMBASSADOR_ID'] = kat_name
# Forcibly override the cached ambassador_id.
Config.ambassador_id = kat_name
logger.debug(f"namespace {namespace or '*'}")
logger.debug(f"labels to watch {', '.join(labels)}")
logger.debug(
f"labels to force {', '.join(sorted(labels_to_force.keys()))}")
logger.debug(f"watch hook {watch}")
logger.debug(f"sources {', '.join(source)}")
for key in sorted(os.environ.keys()):
if key.startswith('AMBASSADOR'):
logger.debug(f"${key}={os.environ[key]}")
if force_pod_labels:
try:
os.makedirs("/tmp/ambassador-pod-info")
except OSError as e:
if e.errno != errno.EEXIST:
raise
with open("/tmp/ambassador-pod-info/labels", "w",
encoding="utf-8") as outfile:
for l in labels_to_force:
outfile.write(l)
outfile.write("\n")
# Pull in the YAML.
input_yaml = ''.join([open(x, "r").read() for x in k8s_yaml_paths])
manifest = parse_yaml(input_yaml)
w = Mockery(logger, debug, source, ",".join(labels), namespace, watch)
iteration = 0
while True:
iteration += 1
if iteration > 10:
print(f"!!!! Not stable after 10 iterations, failing")
logger.error("Not stable after 10 iterations, failing")
sys.exit(1)
logger.info(f"======== START ITERATION {iteration}")
w.load(manifest)
logger.info(f"WATT_K8S: {w.snapshot}")
hook_ok, any_changes = w.run_hook()
if not hook_ok:
raise Exception("hook failed")
if any_changes:
logger.info(
f"======== END ITERATION {iteration}: watches changed!")
else:
logger.info(f"======== END ITERATION {iteration}: stable!")
break
# Once here, we should be good to go.
try:
os.makedirs("/tmp/ambassador/snapshots")
except OSError as e:
if e.errno != errno.EEXIST:
raise
scc = MockSecretHandler(logger, "mockery", "/tmp/ambassador/snapshots",
f"v{iteration}")
aconf = Config()
logger.debug(f"Config.ambassador_id {Config.ambassador_id}")
logger.debug(f"Config.ambassador_namespace {Config.ambassador_namespace}")
logger.info(f"STABLE WATT_K8S: {w.snapshot}")
fetcher = ResourceFetcher(logger, aconf)
fetcher.parse_watt(w.snapshot)
aconf.load_all(fetcher.sorted())
open("/tmp/ambassador/snapshots/aconf.json", "w",
encoding="utf-8").write(aconf.as_json())
ir = IR(aconf, secret_handler=scc)
open("/tmp/ambassador/snapshots/ir.json", "w",
encoding="utf-8").write(ir.as_json())
econf = EnvoyConfig.generate(ir, "V2")
bootstrap_config, ads_config, clustermap = econf.split_config()
ads_config.pop('@type', None)
with open("/tmp/ambassador/snapshots/econf.json", "w",
encoding="utf-8") as outfile:
outfile.write(dump_json(ads_config, pretty=True))
with open("/tmp/ambassador/snapshots/bootstrap.json",
"w",
encoding="utf-8") as outfile:
outfile.write(dump_json(bootstrap_config, pretty=True))
diag = Diagnostics(ir, econf)
with open("/tmp/ambassador/snapshots/diag.json", "w",
encoding="utf-8") as outfile:
outfile.write(dump_json(diag.as_dict(), pretty=True))
if diff_path:
diffs = False
pairs_to_check = [(os.path.join(diff_path, 'snapshots', 'econf.json'),
'/tmp/ambassador/snapshots/econf.json'),
(os.path.join(diff_path, 'bootstrap-ads.json'),
'/tmp/ambassador/snapshots/bootstrap.json')]
if include_ir:
pairs_to_check.append(
(os.path.join(diff_path, 'snapshots',
'ir.json'), '/tmp/ambassador/snapshots/ir.json'))
if include_aconf:
pairs_to_check.append((os.path.join(diff_path, 'snapshots',
'aconf.json'),
'/tmp/ambassador/snapshots/aconf.json'))
for gold_path, check_path in pairs_to_check:
if update:
logger.info(f"mv {check_path} {gold_path}")
shutil.move(check_path, gold_path)
elif not filecmp.cmp(gold_path, check_path):
diffs = True
gold_lines = open(gold_path, "r", encoding="utf-8").readlines()
check_lines = open(check_path, "r",
encoding="utf-8").readlines()
for line in difflib.unified_diff(gold_lines,
check_lines,
fromfile=gold_path,
tofile=check_path):
sys.stdout.write(line)
if diffs:
sys.exit(1)
def dump(config_dir_path: Parameter.REQUIRED,
*,
secret_dir_path=None,
watt=False,
debug=False,
debug_scout=False,
k8s=False,
recurse=False,
stats=False,
nopretty=False,
everything=False,
aconf=False,
ir=False,
v2=False,
v3=False,
diag=False,
features=False,
profile=False):
"""
Dump various forms of an Ambassador configuration for debugging
Use --aconf, --ir, and --envoy to control what gets dumped. If none are requested, the IR
will be dumped.
:param config_dir_path: Configuration directory to scan for Ambassador YAML files
:param secret_dir_path: Directory into which to save secrets
:param watt: If set, input must be a WATT snapshot
:param debug: If set, generate debugging output
:param debug_scout: If set, generate debugging output
:param k8s: If set, assume configuration files are annotated K8s manifests
:param recurse: If set, recurse into directories below config_dir_path
:param stats: If set, dump statistics to stderr
:param nopretty: If set, do not pretty print the dumped JSON
:param aconf: If set, dump the Ambassador config
:param ir: If set, dump the IR
:param v2: If set, dump the Envoy V2 config
:param v3: If set, dump the Envoy V3 config
:param diag: If set, dump the Diagnostics overview
:param everything: If set, dump everything
:param features: If set, dump the feature set
:param profile: If set, profile with the cProfile module
"""
if not secret_dir_path:
secret_dir_path = "/tmp/cli-secrets"
if not os.path.isdir(secret_dir_path):
secret_dir_path = os.path.dirname(secret_dir_path)
if debug:
logger.setLevel(logging.DEBUG)
if debug_scout:
logging.getLogger('ambassador.scout').setLevel(logging.DEBUG)
if everything:
aconf = True
ir = True
v2 = True
v3 = True
diag = True
features = True
elif not (aconf or ir or v2 or v3 or diag or features):
aconf = True
ir = True
v2 = True
v3 = False
diag = False
features = False
dump_aconf = aconf
dump_ir = ir
dump_v2 = v2
dump_v3 = v3
dump_diag = diag
dump_features = features
od = {}
diagconfig: Optional[EnvoyConfig] = None
_profile: Optional[cProfile.Profile] = None
_rc = 0
if profile:
_profile = cProfile.Profile()
_profile.enable()
try:
total_timer = Timer("total")
total_timer.start()
fetch_timer = Timer("fetch resources")
with fetch_timer:
aconf = Config()
fetcher = ResourceFetcher(logger, aconf)
if watt:
fetcher.parse_watt(open(config_dir_path, "r").read())
else:
fetcher.load_from_filesystem(config_dir_path,
k8s=k8s,
recurse=True)
load_timer = Timer("load fetched resources")
with load_timer:
aconf.load_all(fetcher.sorted())
# aconf.post_error("Error from string, boo yah")
# aconf.post_error(RichStatus.fromError("Error from RichStatus"))
irgen_timer = Timer("ir generation")
with irgen_timer:
secret_handler = NullSecretHandler(logger, config_dir_path,
secret_dir_path, "0")
ir = IR(aconf,
file_checker=file_checker,
secret_handler=secret_handler)
aconf_timer = Timer("aconf")
with aconf_timer:
if dump_aconf:
od['aconf'] = aconf.as_dict()
ir_timer = Timer("ir")
with ir_timer:
if dump_ir:
od['ir'] = ir.as_dict()
v2_timer = Timer("v2")
with v2_timer:
if dump_v2:
v2config = V2Config(ir)
diagconfig = v2config
od['v2'] = v2config.as_dict()
v3_timer = Timer("v3")
with v3_timer:
if dump_v3:
v3config = V3Config(ir)
diagconfig = v3config
od['v3'] = v3config.as_dict()
diag_timer = Timer("diag")
with diag_timer:
if dump_diag:
if not diagconfig:
diagconfig = V2Config(ir)
diagconfigv3 = V3Config(ir)
econf = typecast(EnvoyConfig, diagconfig)
econfv3 = typecast(EnvoyConfig, diagconfigv3)
diag = Diagnostics(ir, econf)
diagv3 = Diagnostics(ir, econfv3)
od['diag'] = diag.as_dict()
od['elements'] = econf.elements
od['diagv3'] = diagv3.as_dict()
od['elementsv3'] = econfv3.elements
features_timer = Timer("features")
with features_timer:
if dump_features:
od['features'] = ir.features()
# scout = Scout()
# scout_args = {}
#
# if ir and not os.environ.get("AMBASSADOR_DISABLE_FEATURES", None):
# scout_args["features"] = ir.features()
#
# result = scout.report(action="dump", mode="cli", **scout_args)
# show_notices(result)
dump_timer = Timer("dump JSON")
with dump_timer:
js = dump_json(od, pretty=not nopretty)
jslen = len(js)
write_timer = Timer("write JSON")
with write_timer:
sys.stdout.write(js)
sys.stdout.write("\n")
total_timer.stop()
route_count = 0
vhost_count = 0
filter_chain_count = 0
filter_count = 0
apiversion = 'v2' if v2 else 'v3'
if apiversion in od:
for listener in od[apiversion]['static_resources']['listeners']:
for fc in listener['filter_chains']:
filter_chain_count += 1
for f in fc['filters']:
filter_count += 1
for vh in f['typed_config']['route_config'][
'virtual_hosts']:
vhost_count += 1
route_count += len(vh['routes'])
if stats:
sys.stderr.write("STATS:\n")
sys.stderr.write(" config bytes: %d\n" % jslen)
sys.stderr.write(" vhosts: %d\n" % vhost_count)
sys.stderr.write(" filter chains: %d\n" % filter_chain_count)
sys.stderr.write(" filters: %d\n" % filter_count)
sys.stderr.write(" routes: %d\n" % route_count)
sys.stderr.write(" routes/vhosts: %.3f\n" %
float(float(route_count) / float(vhost_count)))
sys.stderr.write("TIMERS:\n")
sys.stderr.write(" fetch resources: %.3fs\n" %
fetch_timer.average)
sys.stderr.write(" load resources: %.3fs\n" %
load_timer.average)
sys.stderr.write(" ir generation: %.3fs\n" %
irgen_timer.average)
sys.stderr.write(" aconf: %.3fs\n" %
aconf_timer.average)
sys.stderr.write(" envoy v2: %.3fs\n" % v2_timer.average)
sys.stderr.write(" diag: %.3fs\n" %
diag_timer.average)
sys.stderr.write(" features: %.3fs\n" %
features_timer.average)
sys.stderr.write(" dump json: %.3fs\n" %
dump_timer.average)
sys.stderr.write(" write json: %.3fs\n" %
write_timer.average)
sys.stderr.write(" ----------------------\n")
sys.stderr.write(" total: %.3fs\n" % total_timer.average)
except Exception as e:
handle_exception("EXCEPTION from dump",
e,
config_dir_path=config_dir_path)
_rc = 1
if _profile:
_profile.disable()
_profile.dump_stats("ambassador.profile")
sys.exit(_rc)
def load_yaml(self, yaml_stream):
self.aconf = Config()
fetcher = ResourceFetcher(self.logger, self.aconf, watch_only=True)
fetcher.parse_watt(yaml_stream.read())
self.aconf.load_all(fetcher.sorted())
# We can lift mappings straight from the aconf...
mappings = self.aconf.get_config('mappings') or {}
# ...but we need the fake IR to deal with resolvers and TLS contexts.
self.fake = FakeIR(self.aconf, logger=self.logger)
self.logger.debug("IR: %s" % self.fake.as_json())
resolvers = self.fake.resolvers
contexts = self.fake.tls_contexts
self.logger.debug(f'mappings: {len(mappings)}')
self.logger.debug(f'resolvers: {len(resolvers)}')
self.logger.debug(f'contexts: {len(contexts)}')
global_resolver = self.fake.ambassador_module.get('resolver', None)
global_label_selector = os.environ.get('AMBASSADOR_LABEL_SELECTOR', '')
self.logger.debug('label-selector: %s' % global_label_selector)
# watch the AES Secret if the edge stack is running
if self.fake.edge_stack_allowed:
aes_secret_name = os.getenv(ENV_AES_SECRET_NAME, DEFAULT_AES_SECRET_NAME)
aes_secret_namespace = os.getenv(ENV_AES_SECRET_NAMESPACE, Config.ambassador_namespace)
self.logger.debug(f'edge stack detected: need secret {aes_secret_name}.{aes_secret_namespace}')
self.add_kube_watch(f'Secret {aes_secret_name}', 'secret', namespace=aes_secret_namespace,
field_selector=f"metadata.name={aes_secret_name}")
# Walk hosts.
for host in self.fake.get_hosts():
sel = host.get('selector') or {}
match_labels = sel.get('matchLabels') or {}
label_selectors: List[str] = []
if global_label_selector:
label_selectors.append(global_label_selector)
if match_labels:
label_selectors += [ f"{l}={v}" for l, v in match_labels.items() ]
label_selector = ','.join(label_selectors) if label_selectors else None
for wanted_kind in ['service', 'secret']:
self.add_kube_watch(f"Host {host.name}", wanted_kind, host.namespace,
label_selector=label_selector)
for mname, mapping in mappings.items():
res_name = mapping.get('resolver', None)
res_source = 'mapping'
if not res_name:
res_name = global_resolver
res_source = 'defaults'
ctx_name = mapping.get('tls', None)
self.logger.debug(
f'Mapping {mname}: resolver {res_name} from {res_source}, service {mapping.service}, tls {ctx_name}')
if res_name:
resolver = resolvers.get(res_name, None)
self.logger.debug(f'-> resolver {resolver}')
if resolver:
svc = Service(logger, mapping.service, ctx_name)
if resolver.kind == 'ConsulResolver':
self.logger.debug(f'Mapping {mname} uses Consul resolver {res_name}')
# At the moment, we stuff the resolver's datacenter into the association
# ID for this watch. The ResourceFetcher relies on that.
self.consul_watches.append(
{
"id": resolver.datacenter,
"consul-address": resolver.address,
"datacenter": resolver.datacenter,
"service-name": svc.hostname
}
)
elif resolver.kind == 'KubernetesEndpointResolver':
host = svc.hostname
namespace = Config.ambassador_namespace
if not host:
# This is really kind of impossible.
self.logger.error(f"KubernetesEndpointResolver {res_name} has no 'hostname'")
continue
if "." in host:
(host, namespace) = host.split(".", 2)[0:2]
self.logger.debug(f'...kube endpoints: svc {svc.hostname} -> host {host} namespace {namespace}')
self.add_kube_watch(f"endpoint", "endpoints", namespace,
label_selector=global_label_selector,
field_selector=f"metadata.name={host}")
for secret_key, secret_info in self.fake.secret_recorder.needed.items():
self.logger.debug(f'need secret {secret_info.name}.{secret_info.namespace}')
self.add_kube_watch(f"needed secret", "secret", secret_info.namespace,
label_selector=global_label_selector,
field_selector=f"metadata.name={secret_info.name}")
if self.fake.edge_stack_allowed:
# If the edge stack is allowed, make sure we watch for our fallback context.
self.add_kube_watch("Fallback TLSContext", "TLSContext", namespace=Config.ambassador_namespace)
ambassador_basedir = os.environ.get('AMBASSADOR_CONFIG_BASE_DIR', '/ambassador')
if os.path.exists(os.path.join(ambassador_basedir, '.ambassadorinstallations_ok')):
self.add_kube_watch("AmbassadorInstallations", "ambassadorinstallations.getambassador.io", Config.ambassador_namespace)
ambassador_knative_requested = (os.environ.get("AMBASSADOR_KNATIVE_SUPPORT", "-unset-").lower() == 'true')
if ambassador_knative_requested:
self.logger.debug('Looking for Knative support...')
if os.path.exists(os.path.join(ambassador_basedir, '.knative_clusteringress_ok')):
# Watch for clusteringresses.networking.internal.knative.dev in any namespace and with any labels.
self.logger.debug('watching for clusteringresses.networking.internal.knative.dev')
self.add_kube_watch("Knative clusteringresses", "clusteringresses.networking.internal.knative.dev",
None)
if os.path.exists(os.path.join(ambassador_basedir, '.knative_ingress_ok')):
# Watch for ingresses.networking.internal.knative.dev in any namespace and
# with any labels.
self.add_kube_watch("Knative ingresses", "ingresses.networking.internal.knative.dev", None)
self.watchset = {
"kubernetes-watches": self.kube_watches,
"consul-watches": self.consul_watches
}
save_dir = os.environ.get('AMBASSADOR_WATCH_DIR', '/tmp')
if save_dir:
watchset = dump_json(self.watchset)
with open(os.path.join(save_dir, 'watch.json'), "w") as output:
output.write(watchset)
args = sys.argv[1:]
if args:
if args[0] == '--debug':
loglevel = logging.DEBUG
args.pop(0)
elif args[0].startswith('--'):
raise Exception(f'Usage: {os.path.basename(sys.argv[0])} [--debug] [path]')
logging.basicConfig(
level=loglevel,
format="%(asctime)s watch-hook %(levelname)s: %(message)s",
datefmt="%Y-%m-%d %H:%M:%S"
)
alogger = logging.getLogger('ambassador')
alogger.setLevel(logging.INFO)
logger = logging.getLogger('watch_hook')
logger.setLevel(loglevel)
yaml_stream = sys.stdin
if args:
yaml_stream = open(args[0], "r")
wh = WatchHook(logger, yaml_stream)
watchset = dump_json(wh.watchset)
sys.stdout.write(watchset)
def helper_snapshot(path: str) -> str:
snapshot = json.loads(open(path, "r").read())
return dump_json(sanitize_snapshot(snapshot))
def helper_problems(path: str) -> str:
bad_dict = json.loads(open(path, "r").read())
bad_dict["snapshot"] = sanitize_snapshot(bad_dict["snapshot"])
return dump_json(bad_dict)
