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quay/config_app/config_endpoints/api/kube_endpoints.py
2019-11-12 11:09:47 -05:00

143 lines
4.8 KiB
Python

import logging
from flask import request, make_response
from config_app.config_util.config import get_config_as_kube_secret
from data.database import configure
from config_app.c_app import app, config_provider
from config_app.config_endpoints.api import resource, ApiResource, nickname, kubernetes_only, validate_json_request
from config_app.config_util.k8saccessor import KubernetesAccessorSingleton, K8sApiException
logger = logging.getLogger(__name__)
@resource('/v1/kubernetes/deployments/')
class SuperUserKubernetesDeployment(ApiResource):
""" Resource for the getting the status of Red Hat Quay deployments and cycling them """
schemas = {
'ValidateDeploymentNames': {
'type': 'object',
'description': 'Validates deployment names for cycling',
'required': [
'deploymentNames'
],
'properties': {
'deploymentNames': {
'type': 'array',
'description': 'The names of the deployments to cycle'
},
},
}
}
@kubernetes_only
@nickname('scGetNumDeployments')
def get(self):
return KubernetesAccessorSingleton.get_instance().get_qe_deployments()
@kubernetes_only
@validate_json_request('ValidateDeploymentNames')
@nickname('scCycleQEDeployments')
def put(self):
deployment_names = request.get_json()['deploymentNames']
return KubernetesAccessorSingleton.get_instance().cycle_qe_deployments(deployment_names)
@resource('/v1/kubernetes/deployment/<deployment>/status')
class QEDeploymentRolloutStatus(ApiResource):
@kubernetes_only
@nickname('scGetDeploymentRolloutStatus')
def get(self, deployment):
deployment_rollout_status = KubernetesAccessorSingleton.get_instance().get_deployment_rollout_status(deployment)
return {
'status': deployment_rollout_status.status,
'message': deployment_rollout_status.message,
}
@resource('/v1/kubernetes/deployments/rollback')
class QEDeploymentRollback(ApiResource):
""" Resource for rolling back deployments """
schemas = {
'ValidateDeploymentNames': {
'type': 'object',
'description': 'Validates deployment names for rolling back',
'required': [
'deploymentNames'
],
'properties': {
'deploymentNames': {
'type': 'array',
'description': 'The names of the deployments to rollback'
},
},
}
}
@kubernetes_only
@nickname('scRollbackDeployments')
@validate_json_request('ValidateDeploymentNames')
def post(self):
"""
Returns the config to its original state and rolls back deployments
:return:
"""
deployment_names = request.get_json()['deploymentNames']
# To roll back a deployment, we must do 2 things:
# 1. Roll back the config secret to its old value (discarding changes we made in this session)
# 2. Trigger a rollback to the previous revision, so that the pods will be restarted with
# the old config
old_secret = get_config_as_kube_secret(config_provider.get_old_config_dir())
kube_accessor = KubernetesAccessorSingleton.get_instance()
kube_accessor.replace_qe_secret(old_secret)
try:
for name in deployment_names:
kube_accessor.rollback_deployment(name)
except K8sApiException as e:
logger.exception('Failed to rollback deployment.')
return make_response(e.message, 503)
return make_response('Ok', 204)
@resource('/v1/kubernetes/config')
class SuperUserKubernetesConfiguration(ApiResource):
""" Resource for saving the config files to kubernetes secrets. """
@kubernetes_only
@nickname('scDeployConfiguration')
def post(self):
try:
new_secret = get_config_as_kube_secret(config_provider.get_config_dir_path())
KubernetesAccessorSingleton.get_instance().replace_qe_secret(new_secret)
except K8sApiException as e:
logger.exception('Failed to deploy qe config secret to kubernetes.')
return make_response(e.message, 503)
return make_response('Ok', 201)
@resource('/v1/kubernetes/config/populate')
class KubernetesConfigurationPopulator(ApiResource):
""" Resource for populating the local configuration from the cluster's kubernetes secrets. """
@kubernetes_only
@nickname('scKubePopulateConfig')
def post(self):
# Get a clean transient directory to write the config into
config_provider.new_config_dir()
kube_accessor = KubernetesAccessorSingleton.get_instance()
kube_accessor.save_secret_to_directory(config_provider.get_config_dir_path())
config_provider.create_copy_of_config_dir()
# We update the db configuration to connect to their specified one
# (Note, even if this DB isn't valid, it won't affect much in the config app, since we'll report an error,
# and all of the options create a new clean dir, so we'll never pollute configs)
combined = dict(**app.config)
combined.update(config_provider.get_config())
configure(combined)
return 200