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Fix kind mode and add k8s deployment test (#704)

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* Fix kind mode and add k8s deployment test

* Fix lint errors
This commit is contained in:
David Boreham 2024-01-16 15:55:58 -07:00 committed by GitHub
parent 0587813dd0
commit 1f9653e6f7
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4 changed files with 115 additions and 42 deletions
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6
stack_orchestrator/deploy/k8s/cluster_info.py
View File

@ -168,8 +168,8 @@ class ClusterInfo:
result.append(pv)
return result
# to suit the deployment, and also annotate the container specs to point at said volumes
def get_deployment(self):
# TODO: put things like image pull policy into an object-scope struct
def get_deployment(self, image_pull_policy: str = None):
containers = []
for pod_name in self.parsed_pod_yaml_map:
pod = self.parsed_pod_yaml_map[pod_name]
@ -189,7 +189,7 @@ class ClusterInfo:
container = client.V1Container(
name=container_name,
image=image_to_use,
image_pull_policy="Always",
image_pull_policy=image_pull_policy,
env=envs_from_environment_variables_map(self.environment_variables.map),
ports=[client.V1ContainerPort(container_port=port)],
volume_mounts=volume_mounts,

21
stack_orchestrator/deploy/k8s/deploy_k8s.py
View File

@ -111,7 +111,7 @@ class K8sDeployer(Deployer):
print("PVCs created:")
print(f"{pvc_resp}")
# Process compose files into a Deployment
deployment = self.cluster_info.get_deployment()
deployment = self.cluster_info.get_deployment(image_pull_policy=None if self.is_kind() else "Always")
# Create the k8s objects
if opts.o.debug:
print(f"Sending this deployment: {deployment}")
@ -132,7 +132,7 @@ class K8sDeployer(Deployer):
print("Service created:")
print(f"{service_resp}")
# TODO: disable ingress for kind
if not self.is_kind():
ingress: client.V1Ingress = self.cluster_info.get_ingress()
if opts.o.debug:
@ -196,7 +196,7 @@ class K8sDeployer(Deployer):
except client.exceptions.ApiException as e:
_check_delete_exception(e)
# TODO: disable ingress for kind
if not self.is_kind():
ingress: client.V1Ingress = self.cluster_info.get_ingress()
if opts.o.debug:
print(f"Deleting this ingress: {ingress}")
@ -219,7 +219,7 @@ class K8sDeployer(Deployer):
if all_pods.items:
for p in all_pods.items:
if self.cluster_info.app_name in p.metadata.name:
if f"{self.cluster_info.app_name}-deployment" in p.metadata.name:
pods.append(p)
if not pods:
@ -266,7 +266,7 @@ class K8sDeployer(Deployer):
ret = []
for p in pods.items:
if self.cluster_info.app_name in p.metadata.name:
if f"{self.cluster_info.app_name}-deployment" in p.metadata.name:
pod_ip = p.status.pod_ip
ports = AttrDict()
for c in p.spec.containers:
@ -299,11 +299,20 @@ class K8sDeployer(Deployer):
def logs(self, services, tail, follow, stream):
self.connect_api()
pods = pods_in_deployment(self.core_api, "test-deployment")
pods = pods_in_deployment(self.core_api, self.cluster_info.app_name)
if len(pods) > 1:
print("Warning: more than one pod in the deployment")
if len(pods) == 0:
log_data = "******* Pods not running ********\n"
else:
k8s_pod_name = pods[0]
# If the pod is not yet started, the logs request below will throw an exception
try:
log_data = self.core_api.read_namespaced_pod_log(k8s_pod_name, namespace="default", container="test")
except client.exceptions.ApiException as e:
if opts.o.debug:
print(f"Error from read_namespaced_pod_log: {e}")
log_data = "******* No logs available ********\n"
return log_stream_from_string(log_data)
def update(self):

12
stack_orchestrator/deploy/k8s/helpers.py
View File

@ -21,6 +21,7 @@ from typing import Set, Mapping, List
from stack_orchestrator.opts import opts
from stack_orchestrator.deploy.deploy_util import parsed_pod_files_map_from_file_names
from stack_orchestrator.deploy.deployer import DeployerException
def _run_command(command: str):
@ -29,10 +30,13 @@ def _run_command(command: str):
result = subprocess.run(command, shell=True)
if opts.o.debug:
print(f"Result: {result}")
return result
def create_cluster(name: str, config_file: str):
_run_command(f"kind create cluster --name {name} --config {config_file}")
result = _run_command(f"kind create cluster --name {name} --config {config_file}")
if result.returncode != 0:
raise DeployerException(f"kind create cluster failed: {result}")
def destroy_cluster(name: str):
@ -41,12 +45,14 @@ def destroy_cluster(name: str):
def load_images_into_kind(kind_cluster_name: str, image_set: Set[str]):
for image in image_set:
_run_command(f"kind load docker-image {image} --name {kind_cluster_name}")
result = _run_command(f"kind load docker-image {image} --name {kind_cluster_name}")
if result.returncode != 0:
raise DeployerException(f"kind create cluster failed: {result}")
def pods_in_deployment(core_api: client.CoreV1Api, deployment_name: str):
pods = []
pod_response = core_api.list_namespaced_pod(namespace="default", label_selector="app=test-app")
pod_response = core_api.list_namespaced_pod(namespace="default", label_selector=f"app={deployment_name}")
if opts.o.debug:
print(f"pod_response: {pod_response}")
for pod_info in pod_response.items:

74
tests/k8s-deploy/run-deploy-test.sh
View File

@ -2,13 +2,58 @@
set -e
if [ -n "$CERC_SCRIPT_DEBUG" ]; then
set -x
# Dump environment variables for debugging
echo "Environment variables:"
env
fi
# Helper functions: TODO move into a separate file
wait_for_pods_started () {
for i in {1..5}
do
local ps_output=$( $TEST_TARGET_SO deployment --dir $test_deployment_dir ps )
if [[ "$ps_output" == *"Running containers:"* ]]; then
# if ready, return
return
else
# if not ready, wait
sleep 5
fi
done
# Timed out, error exit
echo "waiting for pods to start: FAILED"
delete_cluster_exit
}
wait_for_log_output () {
for i in {1..5}
do
local log_output=$( $TEST_TARGET_SO deployment --dir $test_deployment_dir logs )
if [[ ! -z "$log_output" ]]; then
# if ready, return
return
else
# if not ready, wait
sleep 5
fi
done
# Timed out, error exit
echo "waiting for pods log content: FAILED"
delete_cluster_exit
}
delete_cluster_exit () {
$TEST_TARGET_SO deployment --dir $test_deployment_dir stop --delete-volumes
exit 1
}
# Note: eventually this test should be folded into ../deploy/
# but keeping it separate for now for convenience
TEST_TARGET_SO=$( ls -t1 ./package/laconic-so* | head -1 )
# Dump environment variables for debugging
echo "Environment variables:"
env
# Set a non-default repo dir
export CERC_REPO_BASE_DIR=~/stack-orchestrator-test/repo-base-dir
echo "Testing this package: $TEST_TARGET_SO"
@ -53,23 +98,36 @@ fi
echo "deploy create output file test: passed"
# Try to start the deployment
$TEST_TARGET_SO deployment --dir $test_deployment_dir start
# TODO: add a check to see if the container is up
# Sleep because k8s not up yet
sleep 30
wait_for_pods_started
# Check logs command works
wait_for_log_output
log_output_3=$( $TEST_TARGET_SO deployment --dir $test_deployment_dir logs )
if [[ "$log_output_3" == *"Filesystem is fresh"* ]]; then
echo "deployment logs test: passed"
else
echo "deployment logs test: FAILED"
exit 1
delete_cluster_exit
fi
# Check the config variable CERC_TEST_PARAM_1 was passed correctly
if [[ "$log_output_3" == *"Test-param-1: PASSED"* ]]; then
echo "deployment config test: passed"
else
echo "deployment config test: FAILED"
exit 1
delete_cluster_exit
fi
# Stop then start again and check the volume was preserved
$TEST_TARGET_SO deployment --dir $test_deployment_dir stop
# Sleep a bit just in case
sleep 2
$TEST_TARGET_SO deployment --dir $test_deployment_dir start
wait_for_pods_started
wait_for_log_output
log_output_4=$( $TEST_TARGET_SO deployment --dir $test_deployment_dir logs )
if [[ "$log_output_4" == *"Filesystem is old"* ]]; then
echo "Retain volumes test: passed"
else
echo "Retain volumes test: FAILED"
delete_cluster_exit
fi
# Stop and clean up
$TEST_TARGET_SO deployment --dir $test_deployment_dir stop --delete-volumes