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Implement dry run support for k8s deploy

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This commit is contained in:
David Boreham 2024-02-06 06:58:42 -07:00
parent 25a2b70f2c
commit f8159c51fa
3 changed files with 132 additions and 125 deletions
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86
stack_orchestrator/deploy/compose/deploy_docker.py
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@ -17,6 +17,7 @@ from pathlib import Path
from python_on_whales import DockerClient, DockerException from python_on_whales import DockerClient, DockerException
from stack_orchestrator.deploy.deployer import Deployer, DeployerException, DeployerConfigGenerator from stack_orchestrator.deploy.deployer import Deployer, DeployerException, DeployerConfigGenerator
from stack_orchestrator.deploy.deployment_context import DeploymentContext from stack_orchestrator.deploy.deployment_context import DeploymentContext
from stack_orchestrator.opts import opts
class DockerDeployer(Deployer): class DockerDeployer(Deployer):
@ -29,60 +30,69 @@ class DockerDeployer(Deployer):
self.type = type self.type = type
def up(self, detach, services): def up(self, detach, services):
try: if not opts.o.dry_run:
return self.docker.compose.up(detach=detach, services=services) try:
except DockerException as e: return self.docker.compose.up(detach=detach, services=services)
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def down(self, timeout, volumes): def down(self, timeout, volumes):
try: if not opts.o.dry_run:
return self.docker.compose.down(timeout=timeout, volumes=volumes) try:
except DockerException as e: return self.docker.compose.down(timeout=timeout, volumes=volumes)
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def update(self): def update(self):
try: if not opts.o.dry_run:
return self.docker.compose.restart() try:
except DockerException as e: return self.docker.compose.restart()
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def status(self): def status(self):
try: if not opts.o.dry_run:
for p in self.docker.compose.ps(): try:
print(f"{p.name}\t{p.state.status}") for p in self.docker.compose.ps():
except DockerException as e: print(f"{p.name}\t{p.state.status}")
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def ps(self): def ps(self):
try: if not opts.o.dry_run:
return self.docker.compose.ps() try:
except DockerException as e: return self.docker.compose.ps()
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def port(self, service, private_port): def port(self, service, private_port):
try: if not opts.o.dry_run:
return self.docker.compose.port(service=service, private_port=private_port) try:
except DockerException as e: return self.docker.compose.port(service=service, private_port=private_port)
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def execute(self, service, command, tty, envs): def execute(self, service, command, tty, envs):
try: if not opts.o.dry_run:
return self.docker.compose.execute(service=service, command=command, tty=tty, envs=envs) try:
except DockerException as e: return self.docker.compose.execute(service=service, command=command, tty=tty, envs=envs)
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def logs(self, services, tail, follow, stream): def logs(self, services, tail, follow, stream):
try: if not opts.o.dry_run:
return self.docker.compose.logs(services=services, tail=tail, follow=follow, stream=stream) try:
except DockerException as e: return self.docker.compose.logs(services=services, tail=tail, follow=follow, stream=stream)
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
def run(self, image: str, command=None, user=None, volumes=None, entrypoint=None, env={}, ports=[], detach=False): def run(self, image: str, command=None, user=None, volumes=None, entrypoint=None, env={}, ports=[], detach=False):
try: if not opts.o.dry_run:
return self.docker.run(image=image, command=command, user=user, volumes=volumes, try:
entrypoint=entrypoint, envs=env, detach=detach, publish=ports, publish_all=len(ports) == 0) return self.docker.run(image=image, command=command, user=user, volumes=volumes,
except DockerException as e: entrypoint=entrypoint, envs=env, detach=detach, publish=ports, publish_all=len(ports) == 0)
raise DeployerException(e) except DockerException as e:
raise DeployerException(e)
class DockerDeployerConfigGenerator(DeployerConfigGenerator): class DockerDeployerConfigGenerator(DeployerConfigGenerator):

67
stack_orchestrator/deploy/deploy.py
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@ -85,54 +85,39 @@ def create_deploy_context(
def up_operation(ctx, services_list, stay_attached=False): def up_operation(ctx, services_list, stay_attached=False):
global_context = ctx.parent.parent.obj global_context = ctx.parent.parent.obj
deploy_context = ctx.obj deploy_context = ctx.obj
if not global_context.dry_run: cluster_context = deploy_context.cluster_context
cluster_context = deploy_context.cluster_context container_exec_env = _make_runtime_env(global_context)
container_exec_env = _make_runtime_env(global_context) for attr, value in container_exec_env.items():
for attr, value in container_exec_env.items(): os.environ[attr] = value
os.environ[attr] = value if global_context.verbose:
if global_context.verbose: print(f"Running compose up with container_exec_env: {container_exec_env}, extra_args: {services_list}")
print(f"Running compose up with container_exec_env: {container_exec_env}, extra_args: {services_list}") for pre_start_command in cluster_context.pre_start_commands:
for pre_start_command in cluster_context.pre_start_commands: _run_command(global_context, cluster_context.cluster, pre_start_command)
_run_command(global_context, cluster_context.cluster, pre_start_command) deploy_context.deployer.up(detach=not stay_attached, services=services_list)
deploy_context.deployer.up(detach=not stay_attached, services=services_list) for post_start_command in cluster_context.post_start_commands:
for post_start_command in cluster_context.post_start_commands: _run_command(global_context, cluster_context.cluster, post_start_command)
_run_command(global_context, cluster_context.cluster, post_start_command) _orchestrate_cluster_config(global_context, cluster_context.config, deploy_context.deployer, container_exec_env)
_orchestrate_cluster_config(global_context, cluster_context.config, deploy_context.deployer, container_exec_env)
def down_operation(ctx, delete_volumes, extra_args_list): def down_operation(ctx, delete_volumes, extra_args_list):
global_context = ctx.parent.parent.obj timeout_arg = None
if not global_context.dry_run: if extra_args_list:
if global_context.verbose: timeout_arg = extra_args_list[0]
print("Running compose down") # Specify shutdown timeout (default 10s) to give services enough time to shutdown gracefully
timeout_arg = None ctx.obj.deployer.down(timeout=timeout_arg, volumes=delete_volumes)
if extra_args_list:
timeout_arg = extra_args_list[0]
# Specify shutdown timeout (default 10s) to give services enough time to shutdown gracefully
ctx.obj.deployer.down(timeout=timeout_arg, volumes=delete_volumes)
def status_operation(ctx): def status_operation(ctx):
global_context = ctx.parent.parent.obj ctx.obj.deployer.status()
if not global_context.dry_run:
if global_context.verbose:
print("Running compose status")
ctx.obj.deployer.status()
def update_operation(ctx): def update_operation(ctx):
global_context = ctx.parent.parent.obj ctx.obj.deployer.update()
if not global_context.dry_run:
if global_context.verbose:
print("Running compose update")
ctx.obj.deployer.update()
def ps_operation(ctx): def ps_operation(ctx):
global_context = ctx.parent.parent.obj global_context = ctx.parent.parent.obj
if not global_context.dry_run: if not global_context.dry_run:
if global_context.verbose:
print("Running compose ps")
container_list = ctx.obj.deployer.ps() container_list = ctx.obj.deployer.ps()
if len(container_list) > 0: if len(container_list) > 0:
print("Running containers:") print("Running containers:")
@ -187,15 +172,11 @@ def exec_operation(ctx, extra_args):
def logs_operation(ctx, tail: int, follow: bool, extra_args: str): def logs_operation(ctx, tail: int, follow: bool, extra_args: str):
global_context = ctx.parent.parent.obj
extra_args_list = list(extra_args) or None extra_args_list = list(extra_args) or None
if not global_context.dry_run: services_list = extra_args_list if extra_args_list is not None else []
if global_context.verbose: logs_stream = ctx.obj.deployer.logs(services=services_list, tail=tail, follow=follow, stream=True)
print("Running compose logs") for stream_type, stream_content in logs_stream:
services_list = extra_args_list if extra_args_list is not None else [] print(stream_content.decode("utf-8"), end="")
logs_stream = ctx.obj.deployer.logs(services=services_list, tail=tail, follow=follow, stream=True)
for stream_type, stream_content in logs_stream:
print(stream_content.decode("utf-8"), end="")
@command.command() @command.command()
@ -463,7 +444,7 @@ def _orchestrate_cluster_config(ctx, cluster_config, deployer, container_exec_en
tty=False, tty=False,
envs=container_exec_env) envs=container_exec_env)
waiting_for_data = False waiting_for_data = False
if ctx.debug: if ctx.debug and not waiting_for_data:
print(f"destination output: {destination_output}") print(f"destination output: {destination_output}")

104
stack_orchestrator/deploy/k8s/deploy_k8s.py
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@ -81,69 +81,84 @@ class K8sDeployer(Deployer):
self.apps_api = client.AppsV1Api() self.apps_api = client.AppsV1Api()
self.custom_obj_api = client.CustomObjectsApi() self.custom_obj_api = client.CustomObjectsApi()
def up(self, detach, services): def _create_volume_data(self):
if self.is_kind():
# Create the kind cluster
create_cluster(self.kind_cluster_name, self.deployment_dir.joinpath(constants.kind_config_filename))
# Ensure the referenced containers are copied into kind
load_images_into_kind(self.kind_cluster_name, self.cluster_info.image_set)
self.connect_api()
# Create the host-path-mounted PVs for this deployment # Create the host-path-mounted PVs for this deployment
pvs = self.cluster_info.get_pvs() pvs = self.cluster_info.get_pvs()
for pv in pvs: for pv in pvs:
if opts.o.debug: if opts.o.debug:
print(f"Sending this pv: {pv}") print(f"Sending this pv: {pv}")
pv_resp = self.core_api.create_persistent_volume(body=pv) if not opts.o.dry_run:
if opts.o.debug: pv_resp = self.core_api.create_persistent_volume(body=pv)
print("PVs created:") if opts.o.debug:
print(f"{pv_resp}") print("PVs created:")
print(f"{pv_resp}")
# Figure out the PVCs for this deployment # Figure out the PVCs for this deployment
pvcs = self.cluster_info.get_pvcs() pvcs = self.cluster_info.get_pvcs()
for pvc in pvcs: for pvc in pvcs:
if opts.o.debug: if opts.o.debug:
print(f"Sending this pvc: {pvc}") print(f"Sending this pvc: {pvc}")
pvc_resp = self.core_api.create_namespaced_persistent_volume_claim(body=pvc, namespace=self.k8s_namespace)
if opts.o.debug: if not opts.o.dry_run:
print("PVCs created:") pvc_resp = self.core_api.create_namespaced_persistent_volume_claim(body=pvc, namespace=self.k8s_namespace)
print(f"{pvc_resp}") if opts.o.debug:
print("PVCs created:")
print(f"{pvc_resp}")
# Figure out the ConfigMaps for this deployment # Figure out the ConfigMaps for this deployment
config_maps = self.cluster_info.get_configmaps() config_maps = self.cluster_info.get_configmaps()
for cfg_map in config_maps: for cfg_map in config_maps:
if opts.o.debug: if opts.o.debug:
print(f"Sending this ConfigMap: {cfg_map}") print(f"Sending this ConfigMap: {cfg_map}")
cfg_rsp = self.core_api.create_namespaced_config_map( if not opts.o.dry_run:
body=cfg_map, cfg_rsp = self.core_api.create_namespaced_config_map(
namespace=self.k8s_namespace body=cfg_map,
) namespace=self.k8s_namespace
if opts.o.debug: )
print("ConfigMap created:") if opts.o.debug:
print(f"{cfg_rsp}") print("ConfigMap created:")
print(f"{cfg_rsp}")
def _create_deployment(self):
# Process compose files into a Deployment # Process compose files into a Deployment
deployment = self.cluster_info.get_deployment(image_pull_policy=None if self.is_kind() else "Always") deployment = self.cluster_info.get_deployment(image_pull_policy=None if self.is_kind() else "Always")
# Create the k8s objects # Create the k8s objects
if opts.o.debug: if opts.o.debug:
print(f"Sending this deployment: {deployment}") print(f"Sending this deployment: {deployment}")
deployment_resp = self.apps_api.create_namespaced_deployment( if not opts.o.dry_run:
body=deployment, namespace=self.k8s_namespace deployment_resp = self.apps_api.create_namespaced_deployment(
) body=deployment, namespace=self.k8s_namespace
if opts.o.debug: )
print("Deployment created:") if opts.o.debug:
print(f"{deployment_resp.metadata.namespace} {deployment_resp.metadata.name} \ print("Deployment created:")
{deployment_resp.metadata.generation} {deployment_resp.spec.template.spec.containers[0].image}") print(f"{deployment_resp.metadata.namespace} {deployment_resp.metadata.name} \
{deployment_resp.metadata.generation} {deployment_resp.spec.template.spec.containers[0].image}")
service: client.V1Service = self.cluster_info.get_service() service: client.V1Service = self.cluster_info.get_service()
service_resp = self.core_api.create_namespaced_service(
namespace=self.k8s_namespace,
body=service
)
if opts.o.debug: if opts.o.debug:
print("Service created:") print(f"Sending this service: {service}")
print(f"{service_resp}") if not opts.o.dry_run:
service_resp = self.core_api.create_namespaced_service(
namespace=self.k8s_namespace,
body=service
)
if opts.o.debug:
print("Service created:")
print(f"{service_resp}")
def up(self, detach, services):
if not opts.o.dry_run:
if self.is_kind():
# Create the kind cluster
create_cluster(self.kind_cluster_name, self.deployment_dir.joinpath(constants.kind_config_filename))
# Ensure the referenced containers are copied into kind
load_images_into_kind(self.kind_cluster_name, self.cluster_info.image_set)
self.connect_api()
else:
print("Dry run mode enabled, skipping k8s API connect")
self._create_volume_data()
self._create_deployment()
if not self.is_kind(): if not self.is_kind():
ingress: client.V1Ingress = self.cluster_info.get_ingress() ingress: client.V1Ingress = self.cluster_info.get_ingress()
@ -151,13 +166,14 @@ class K8sDeployer(Deployer):
if ingress: if ingress:
if opts.o.debug: if opts.o.debug:
print(f"Sending this ingress: {ingress}") print(f"Sending this ingress: {ingress}")
ingress_resp = self.networking_api.create_namespaced_ingress( if not opts.o.dry_run:
namespace=self.k8s_namespace, ingress_resp = self.networking_api.create_namespaced_ingress(
body=ingress namespace=self.k8s_namespace,
) body=ingress
if opts.o.debug: )
print("Ingress created:") if opts.o.debug:
print(f"{ingress_resp}") print("Ingress created:")
print(f"{ingress_resp}")
else: else:
if opts.o.debug: if opts.o.debug:
print("No ingress configured") print("No ingress configured")