132 lines
5.5 KiB
Python
132 lines
5.5 KiB
Python
# Copyright © 2023 Vulcanize
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http:#www.gnu.org/licenses/>.
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from kubernetes import client
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from typing import Any, List, Set
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from stack_orchestrator.opts import opts
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from stack_orchestrator.deploy.k8s.helpers import named_volumes_from_pod_files, volume_mounts_for_service, volumes_for_pod_files
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from stack_orchestrator.deploy.k8s.helpers import parsed_pod_files_map_from_file_names, get_node_pv_mount_path
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from stack_orchestrator.deploy.k8s.helpers import env_var_map_from_file, envs_from_environment_variables_map
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from stack_orchestrator.deploy.deploy_types import DeployEnvVars
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class ClusterInfo:
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parsed_pod_yaml_map: Any = {}
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image_set: Set[str] = set()
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app_name: str = "test-app"
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deployment_name: str = "test-deployment"
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environment_variables: DeployEnvVars
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def __init__(self) -> None:
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pass
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def int(self, pod_files: List[str], compose_env_file):
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self.parsed_pod_yaml_map = parsed_pod_files_map_from_file_names(pod_files)
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# Find the set of images in the pods
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for pod_name in self.parsed_pod_yaml_map:
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pod = self.parsed_pod_yaml_map[pod_name]
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services = pod["services"]
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for service_name in services:
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service_info = services[service_name]
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image = service_info["image"]
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self.image_set.add(image)
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if opts.o.debug:
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print(f"image_set: {self.image_set}")
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self.environment_variables = DeployEnvVars(env_var_map_from_file(compose_env_file))
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if (opts.o.debug):
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print(f"Env vars: {self.environment_variables.map}")
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def get_pvcs(self):
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result = []
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volumes = named_volumes_from_pod_files(self.parsed_pod_yaml_map)
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if opts.o.debug:
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print(f"Volumes: {volumes}")
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for volume_name in volumes:
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spec = client.V1PersistentVolumeClaimSpec(
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access_modes=["ReadWriteOnce"],
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storage_class_name="manual",
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resources=client.V1ResourceRequirements(
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requests={"storage": "2Gi"}
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),
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volume_name=volume_name
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)
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pvc = client.V1PersistentVolumeClaim(
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metadata=client.V1ObjectMeta(name=volume_name,
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labels={"volume-label": volume_name}),
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spec=spec,
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)
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result.append(pvc)
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return result
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def get_pvs(self):
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result = []
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volumes = named_volumes_from_pod_files(self.parsed_pod_yaml_map)
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for volume_name in volumes:
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spec = client.V1PersistentVolumeSpec(
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storage_class_name="manual",
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access_modes=["ReadWriteOnce"],
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capacity={"storage": "2Gi"},
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host_path=client.V1HostPathVolumeSource(path=get_node_pv_mount_path(volume_name))
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)
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pv = client.V1PersistentVolume(
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metadata=client.V1ObjectMeta(name=volume_name,
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labels={"volume-label": volume_name}),
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spec=spec,
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)
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result.append(pv)
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return result
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# to suit the deployment, and also annotate the container specs to point at said volumes
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def get_deployment(self):
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containers = []
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for pod_name in self.parsed_pod_yaml_map:
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pod = self.parsed_pod_yaml_map[pod_name]
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services = pod["services"]
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for service_name in services:
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container_name = service_name
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service_info = services[service_name]
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image = service_info["image"]
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volume_mounts = volume_mounts_for_service(self.parsed_pod_yaml_map, service_name)
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container = client.V1Container(
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name=container_name,
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image=image,
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env=envs_from_environment_variables_map(self.environment_variables.map),
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ports=[client.V1ContainerPort(container_port=80)],
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volume_mounts=volume_mounts,
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resources=client.V1ResourceRequirements(
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requests={"cpu": "100m", "memory": "200Mi"},
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limits={"cpu": "500m", "memory": "500Mi"},
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),
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)
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containers.append(container)
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volumes = volumes_for_pod_files(self.parsed_pod_yaml_map)
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template = client.V1PodTemplateSpec(
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metadata=client.V1ObjectMeta(labels={"app": self.app_name}),
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spec=client.V1PodSpec(containers=containers, volumes=volumes),
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)
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spec = client.V1DeploymentSpec(
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replicas=1, template=template, selector={
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"matchLabels":
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{"app": self.app_name}})
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deployment = client.V1Deployment(
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api_version="apps/v1",
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kind="Deployment",
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metadata=client.V1ObjectMeta(name=self.deployment_name),
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spec=spec,
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)
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return deployment
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