mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-03 11:48:15 +00:00
3fcf279cfb
This branch includes a rollup series of commits from a fork of the kubernetes repository pre 1.5 release because we didn't make the code freeze. This additional effort has been fully tested and has results submit into the gubernator to enhance confidence in this code quality vs. the single layer, posing as both master/node. To reference the gubernator results, please see: https://k8s-gubernator.appspot.com/builds/canonical-kubernetes-tests/logs/kubernetes-gce-e2e-node/ Apologies in advance for the large commit, however we did not want to submit without having successful upstream automated testing results. This commit includes: - Support for CNI networking plugins - Support for durable storage provided by ceph - Building from upstream templates (read: kubedns - no more template drift!) - An e2e charm-layer to make running validation tests much simpler/repeatable - Changes to support the 1.5.x series of kubernetes Additional note: We will be targeting -all- future work against upstream so large pull requests of this magnitude will not occur again.
669 lines
26 KiB
Python
669 lines
26 KiB
Python
#!/usr/bin/env python
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# Copyright 2015 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import base64
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import os
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import random
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import socket
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import string
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from shlex import split
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from subprocess import call
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from subprocess import check_call
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from subprocess import check_output
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from subprocess import CalledProcessError
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from charms import layer
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from charms.reactive import hook
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from charms.reactive import remove_state
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from charms.reactive import set_state
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from charms.reactive import when
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from charms.reactive import when_not
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from charms.reactive.helpers import data_changed
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from charms.kubernetes.flagmanager import FlagManager
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from charmhelpers.core import hookenv
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from charmhelpers.core import host
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from charmhelpers.core import unitdata
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from charmhelpers.core.templating import render
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from charmhelpers.fetch import apt_install
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dashboard_templates = [
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'dashboard-controller.yaml',
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'dashboard-service.yaml',
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'influxdb-grafana-controller.yaml',
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'influxdb-service.yaml',
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'grafana-service.yaml',
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'heapster-controller.yaml',
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'heapster-service.yaml'
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]
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def service_cidr():
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''' Return the charm's service-cidr config '''
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db = unitdata.kv()
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frozen_cidr = db.get('kubernetes-master.service-cidr')
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return frozen_cidr or hookenv.config('service-cidr')
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def freeze_service_cidr():
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''' Freeze the service CIDR. Once the apiserver has started, we can no
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longer safely change this value. '''
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db = unitdata.kv()
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db.set('kubernetes-master.service-cidr', service_cidr())
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@hook('upgrade-charm')
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def reset_states_for_delivery():
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'''An upgrade charm event was triggered by Juju, react to that here.'''
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services = ['kube-apiserver',
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'kube-controller-manager',
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'kube-scheduler']
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for service in services:
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hookenv.log('Stopping {0} service.'.format(service))
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host.service_stop(service)
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remove_state('kubernetes-master.components.started')
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remove_state('kubernetes-master.components.installed')
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remove_state('kube-dns.available')
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remove_state('kubernetes.dashboard.available')
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@when_not('kubernetes-master.components.installed')
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def install():
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'''Unpack and put the Kubernetes master files on the path.'''
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# Get the resource via resource_get
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try:
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archive = hookenv.resource_get('kubernetes')
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except Exception:
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message = 'Error fetching the kubernetes resource.'
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hookenv.log(message)
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hookenv.status_set('blocked', message)
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return
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if not archive:
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hookenv.log('Missing kubernetes resource.')
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hookenv.status_set('blocked', 'Missing kubernetes resource.')
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return
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# Handle null resource publication, we check if filesize < 1mb
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filesize = os.stat(archive).st_size
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if filesize < 1000000:
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hookenv.status_set('blocked', 'Incomplete kubernetes resource.')
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return
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hookenv.status_set('maintenance', 'Unpacking kubernetes resource.')
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files_dir = os.path.join(hookenv.charm_dir(), 'files')
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os.makedirs(files_dir, exist_ok=True)
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command = 'tar -xvzf {0} -C {1}'.format(archive, files_dir)
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hookenv.log(command)
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check_call(split(command))
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apps = [
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{'name': 'kube-apiserver', 'path': '/usr/local/bin'},
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{'name': 'kube-controller-manager', 'path': '/usr/local/bin'},
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{'name': 'kube-scheduler', 'path': '/usr/local/bin'},
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{'name': 'kubectl', 'path': '/usr/local/bin'},
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]
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for app in apps:
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unpacked = '{}/{}'.format(files_dir, app['name'])
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app_path = os.path.join(app['path'], app['name'])
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install = ['install', '-v', '-D', unpacked, app_path]
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hookenv.log(install)
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check_call(install)
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set_state('kubernetes-master.components.installed')
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@when('cni.connected')
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@when_not('cni.configured')
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def configure_cni(cni):
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''' Set master configuration on the CNI relation. This lets the CNI
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subordinate know that we're the master so it can respond accordingly. '''
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cni.set_config(is_master=True, kubeconfig_path='')
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@when('kubernetes-master.components.installed')
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@when_not('authentication.setup')
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def setup_authentication():
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'''Setup basic authentication and token access for the cluster.'''
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api_opts = FlagManager('kube-apiserver')
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controller_opts = FlagManager('kube-controller-manager')
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api_opts.add('--basic-auth-file', '/srv/kubernetes/basic_auth.csv')
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api_opts.add('--token-auth-file', '/srv/kubernetes/known_tokens.csv')
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api_opts.add('--service-cluster-ip-range', service_cidr())
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hookenv.status_set('maintenance', 'Rendering authentication templates.')
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htaccess = '/srv/kubernetes/basic_auth.csv'
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if not os.path.isfile(htaccess):
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setup_basic_auth('admin', 'admin', 'admin')
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known_tokens = '/srv/kubernetes/known_tokens.csv'
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if not os.path.isfile(known_tokens):
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setup_tokens(None, 'admin', 'admin')
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setup_tokens(None, 'kubelet', 'kubelet')
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setup_tokens(None, 'kube_proxy', 'kube_proxy')
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# Generate the default service account token key
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os.makedirs('/etc/kubernetes', exist_ok=True)
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cmd = ['openssl', 'genrsa', '-out', '/etc/kubernetes/serviceaccount.key',
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'2048']
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check_call(cmd)
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api_opts.add('--service-account-key-file',
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'/etc/kubernetes/serviceaccount.key')
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controller_opts.add('--service-account-private-key-file',
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'/etc/kubernetes/serviceaccount.key')
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set_state('authentication.setup')
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@when('kubernetes-master.components.installed')
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def set_app_version():
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''' Declare the application version to juju '''
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version = check_output(['kube-apiserver', '--version'])
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hookenv.application_version_set(version.split(b' v')[-1].rstrip())
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@when('kube-dns.available', 'kubernetes-master.components.installed')
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def idle_status():
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''' Signal at the end of the run that we are running. '''
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if hookenv.config('service-cidr') != service_cidr():
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hookenv.status_set('active', 'WARN: cannot change service-cidr, still using ' + service_cidr())
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else:
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hookenv.status_set('active', 'Kubernetes master running.')
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@when('etcd.available', 'kubernetes-master.components.installed',
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'certificates.server.cert.available')
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@when_not('kubernetes-master.components.started')
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def start_master(etcd, tls):
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'''Run the Kubernetes master components.'''
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hookenv.status_set('maintenance',
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'Rendering the Kubernetes master systemd files.')
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freeze_service_cidr()
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handle_etcd_relation(etcd)
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# Use the etcd relation object to render files with etcd information.
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render_files()
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hookenv.status_set('maintenance',
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'Starting the Kubernetes master services.')
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services = ['kube-apiserver',
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'kube-controller-manager',
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'kube-scheduler']
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for service in services:
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hookenv.log('Starting {0} service.'.format(service))
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host.service_start(service)
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hookenv.open_port(6443)
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hookenv.status_set('active', 'Kubernetes master services ready.')
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set_state('kubernetes-master.components.started')
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@when('cluster-dns.connected')
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def send_cluster_dns_detail(cluster_dns):
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''' Send cluster DNS info '''
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# Note that the DNS server doesn't necessarily exist at this point. We know
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# where we're going to put it, though, so let's send the info anyway.
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dns_ip = get_dns_ip()
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cluster_dns.set_dns_info(53, hookenv.config('dns_domain'), dns_ip)
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@when('kube-api-endpoint.available')
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def push_service_data(kube_api):
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''' Send configuration to the load balancer, and close access to the
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public interface '''
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kube_api.configure(port=6443)
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@when('certificates.available')
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def send_data(tls):
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'''Send the data that is required to create a server certificate for
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this server.'''
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# Use the public ip of this unit as the Common Name for the certificate.
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common_name = hookenv.unit_public_ip()
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# Get the SDN gateway based on the cidr address.
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kubernetes_service_ip = get_kubernetes_service_ip()
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domain = hookenv.config('dns_domain')
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# Create SANs that the tls layer will add to the server cert.
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sans = [
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hookenv.unit_public_ip(),
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hookenv.unit_private_ip(),
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socket.gethostname(),
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kubernetes_service_ip,
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'kubernetes',
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'kubernetes.{0}'.format(domain),
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'kubernetes.default',
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'kubernetes.default.svc',
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'kubernetes.default.svc.{0}'.format(domain)
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]
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# Create a path safe name by removing path characters from the unit name.
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certificate_name = hookenv.local_unit().replace('/', '_')
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# Request a server cert with this information.
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tls.request_server_cert(common_name, sans, certificate_name)
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@when('kube-api.connected')
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def push_api_data(kube_api):
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''' Send configuration to remote consumer.'''
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# Since all relations already have the private ip address, only
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# send the port on the relation object to all consumers.
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# The kubernetes api-server uses 6443 for the default secure port.
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kube_api.set_api_port('6443')
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@when('kubernetes-master.components.started', 'kube-dns.available')
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@when_not('kubernetes.dashboard.available')
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def install_dashboard_addons():
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''' Launch dashboard addons if they are enabled in config '''
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if hookenv.config('enable-dashboard-addons'):
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hookenv.log('Launching kubernetes dashboard.')
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context = {}
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context['arch'] = arch()
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try:
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context['pillar'] = {'num_nodes': get_node_count()}
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for template in dashboard_templates:
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create_addon(template, context)
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set_state('kubernetes.dashboard.available')
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except CalledProcessError:
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hookenv.log('Kubernetes dashboard waiting on kubeapi')
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@when('kubernetes-master.components.started', 'kubernetes.dashboard.available')
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def remove_dashboard_addons():
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''' Removes dashboard addons if they are disabled in config '''
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if not hookenv.config('enable-dashboard-addons'):
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hookenv.log('Removing kubernetes dashboard.')
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for template in dashboard_templates:
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delete_addon(template)
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remove_state('kubernetes.dashboard.available')
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@when('kubernetes-master.components.installed')
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@when_not('kube-dns.available')
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def start_kube_dns():
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''' State guard to starting DNS '''
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# Interrogate the cluster to find out if we have at least one worker
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# that is capable of running the workload.
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cmd = ['kubectl', 'get', 'nodes']
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try:
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out = check_output(cmd)
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if b'NAME' not in out:
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hookenv.log('Unable to determine node count, waiting '
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'until nodes are ready')
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return
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except CalledProcessError:
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hookenv.log('kube-apiserver not ready, not requesting dns deployment')
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return
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message = 'Rendering the Kubernetes DNS files.'
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hookenv.log(message)
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hookenv.status_set('maintenance', message)
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context = {
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'arch': arch(),
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# The dictionary named 'pillar' is a construct of the k8s template files.
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'pillar': {
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'dns_server': get_dns_ip(),
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'dns_replicas': 1,
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'dns_domain': hookenv.config('dns_domain')
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}
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}
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create_addon('kubedns-controller.yaml', context)
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create_addon('kubedns-svc.yaml', context)
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set_state('kube-dns.available')
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@when('kubernetes-master.components.installed', 'loadbalancer.available',
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'certificates.ca.available', 'certificates.client.cert.available')
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def loadbalancer_kubeconfig(loadbalancer, ca, client):
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# Get the potential list of loadbalancers from the relation object.
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hosts = loadbalancer.get_addresses_ports()
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# Get the public address of loadbalancers so users can access the cluster.
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address = hosts[0].get('public-address')
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# Get the port of the loadbalancer so users can access the cluster.
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port = hosts[0].get('port')
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server = 'https://{0}:{1}'.format(address, port)
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build_kubeconfig(server)
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@when('kubernetes-master.components.installed',
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'certificates.ca.available', 'certificates.client.cert.available')
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@when_not('loadbalancer.available')
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def create_self_config(ca, client):
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'''Create a kubernetes configuration for the master unit.'''
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server = 'https://{0}:{1}'.format(hookenv.unit_get('public-address'), 6443)
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build_kubeconfig(server)
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@when('ceph-storage.available')
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def ceph_state_control(ceph_admin):
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''' Determine if we should remove the state that controls the re-render
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and execution of the ceph-relation-changed event because there
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are changes in the relationship data, and we should re-render any
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configs, keys, and/or service pre-reqs '''
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ceph_relation_data = {
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'mon_hosts': ceph_admin.mon_hosts(),
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'fsid': ceph_admin.fsid(),
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'auth_supported': ceph_admin.auth(),
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'hostname': socket.gethostname(),
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'key': ceph_admin.key()
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}
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# Re-execute the rendering if the data has changed.
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if data_changed('ceph-config', ceph_relation_data):
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remove_state('ceph-storage.configured')
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@when('ceph-storage.available')
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@when_not('ceph-storage.configured')
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def ceph_storage(ceph_admin):
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'''Ceph on kubernetes will require a few things - namely a ceph
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configuration, and the ceph secret key file used for authentication.
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This method will install the client package, and render the requisit files
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in order to consume the ceph-storage relation.'''
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ceph_context = {
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'mon_hosts': ceph_admin.mon_hosts(),
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'fsid': ceph_admin.fsid(),
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'auth_supported': ceph_admin.auth(),
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'use_syslog': "true",
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'ceph_public_network': '',
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'ceph_cluster_network': '',
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'loglevel': 1,
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'hostname': socket.gethostname(),
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}
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# Install the ceph common utilities.
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apt_install(['ceph-common'], fatal=True)
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etc_ceph_directory = '/etc/ceph'
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if not os.path.isdir(etc_ceph_directory):
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os.makedirs(etc_ceph_directory)
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charm_ceph_conf = os.path.join(etc_ceph_directory, 'ceph.conf')
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# Render the ceph configuration from the ceph conf template
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render('ceph.conf', charm_ceph_conf, ceph_context)
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# The key can rotate independently of other ceph config, so validate it
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admin_key = os.path.join(etc_ceph_directory,
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'ceph.client.admin.keyring')
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try:
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with open(admin_key, 'w') as key_file:
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key_file.write("[client.admin]\n\tkey = {}\n".format(
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ceph_admin.key()))
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except IOError as err:
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hookenv.log("IOError writing admin.keyring: {}".format(err))
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# Enlist the ceph-admin key as a kubernetes secret
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if ceph_admin.key():
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encoded_key = base64.b64encode(ceph_admin.key().encode('utf-8'))
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else:
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# We didn't have a key, and cannot proceed. Do not set state and
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# allow this method to re-execute
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return
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context = {'secret': encoded_key.decode('ascii')}
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render('ceph-secret.yaml', '/tmp/ceph-secret.yaml', context)
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try:
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# At first glance this is deceptive. The apply stanza will create if
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# it doesn't exist, otherwise it will update the entry, ensuring our
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# ceph-secret is always reflective of what we have in /etc/ceph
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# assuming we have invoked this anytime that file would change.
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cmd = ['kubectl', 'apply', '-f', '/tmp/ceph-secret.yaml']
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check_call(cmd)
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os.remove('/tmp/ceph-secret.yaml')
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except:
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# the enlistment in kubernetes failed, return and prepare for re-exec
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return
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# when complete, set a state relating to configuration of the storage
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# backend that will allow other modules to hook into this and verify we
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# have performed the necessary pre-req steps to interface with a ceph
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# deployment.
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set_state('ceph-storage.configured')
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def create_addon(template, context):
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'''Create an addon from a template'''
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source = 'addons/' + template
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target = '/etc/kubernetes/addons/' + template
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render(source, target, context)
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cmd = ['kubectl', 'apply', '-f', target]
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check_call(cmd)
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def delete_addon(template):
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'''Delete an addon from a template'''
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target = '/etc/kubernetes/addons/' + template
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cmd = ['kubectl', 'delete', '-f', target]
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call(cmd)
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def get_node_count():
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'''Return the number of Kubernetes nodes in the cluster'''
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cmd = ['kubectl', 'get', 'nodes', '-o', 'name']
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output = check_output(cmd)
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node_count = len(output.splitlines())
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return node_count
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def arch():
|
|
'''Return the package architecture as a string. Raise an exception if the
|
|
architecture is not supported by kubernetes.'''
|
|
# Get the package architecture for this system.
|
|
architecture = check_output(['dpkg', '--print-architecture']).rstrip()
|
|
# Convert the binary result into a string.
|
|
architecture = architecture.decode('utf-8')
|
|
return architecture
|
|
|
|
|
|
def build_kubeconfig(server):
|
|
'''Gather the relevant data for Kubernetes configuration objects and create
|
|
a config object with that information.'''
|
|
# Get the options from the tls-client layer.
|
|
layer_options = layer.options('tls-client')
|
|
# Get all the paths to the tls information required for kubeconfig.
|
|
ca = layer_options.get('ca_certificate_path')
|
|
ca_exists = ca and os.path.isfile(ca)
|
|
key = layer_options.get('client_key_path')
|
|
key_exists = key and os.path.isfile(key)
|
|
cert = layer_options.get('client_certificate_path')
|
|
cert_exists = cert and os.path.isfile(cert)
|
|
# Do we have everything we need?
|
|
if ca_exists and key_exists and cert_exists:
|
|
# Cache last server string to know if we need to regenerate the config.
|
|
if not data_changed('kubeconfig.server', server):
|
|
return
|
|
# The final destination of the kubeconfig and kubectl.
|
|
destination_directory = '/home/ubuntu'
|
|
# Create an absolute path for the kubeconfig file.
|
|
kubeconfig_path = os.path.join(destination_directory, 'config')
|
|
# Create the kubeconfig on this system so users can access the cluster.
|
|
create_kubeconfig(kubeconfig_path, server, ca, key, cert)
|
|
# Copy the kubectl binary to the destination directory.
|
|
cmd = ['install', '-v', '-o', 'ubuntu', '-g', 'ubuntu',
|
|
'/usr/local/bin/kubectl', destination_directory]
|
|
check_call(cmd)
|
|
# Make the config file readable by the ubuntu users so juju scp works.
|
|
cmd = ['chown', 'ubuntu:ubuntu', kubeconfig_path]
|
|
check_call(cmd)
|
|
|
|
|
|
def create_kubeconfig(kubeconfig, server, ca, key, certificate, user='ubuntu',
|
|
context='juju-context', cluster='juju-cluster'):
|
|
'''Create a configuration for Kubernetes based on path using the supplied
|
|
arguments for values of the Kubernetes server, CA, key, certificate, user
|
|
context and cluster.'''
|
|
# Create the config file with the address of the master server.
|
|
cmd = 'kubectl config --kubeconfig={0} set-cluster {1} ' \
|
|
'--server={2} --certificate-authority={3} --embed-certs=true'
|
|
check_call(split(cmd.format(kubeconfig, cluster, server, ca)))
|
|
# Create the credentials using the client flags.
|
|
cmd = 'kubectl config --kubeconfig={0} set-credentials {1} ' \
|
|
'--client-key={2} --client-certificate={3} --embed-certs=true'
|
|
check_call(split(cmd.format(kubeconfig, user, key, certificate)))
|
|
# Create a default context with the cluster.
|
|
cmd = 'kubectl config --kubeconfig={0} set-context {1} ' \
|
|
'--cluster={2} --user={3}'
|
|
check_call(split(cmd.format(kubeconfig, context, cluster, user)))
|
|
# Make the config use this new context.
|
|
cmd = 'kubectl config --kubeconfig={0} use-context {1}'
|
|
check_call(split(cmd.format(kubeconfig, context)))
|
|
|
|
|
|
def get_dns_ip():
|
|
'''Get an IP address for the DNS server on the provided cidr.'''
|
|
# Remove the range from the cidr.
|
|
ip = service_cidr().split('/')[0]
|
|
# Take the last octet off the IP address and replace it with 10.
|
|
return '.'.join(ip.split('.')[0:-1]) + '.10'
|
|
|
|
|
|
def get_kubernetes_service_ip():
|
|
'''Get the IP address for the kubernetes service based on the cidr.'''
|
|
# Remove the range from the cidr.
|
|
ip = service_cidr().split('/')[0]
|
|
# Remove the last octet and replace it with 1.
|
|
return '.'.join(ip.split('.')[0:-1]) + '.1'
|
|
|
|
|
|
def handle_etcd_relation(reldata):
|
|
''' Save the client credentials and set appropriate daemon flags when
|
|
etcd declares itself as available'''
|
|
connection_string = reldata.get_connection_string()
|
|
# Define where the etcd tls files will be kept.
|
|
etcd_dir = '/etc/ssl/etcd'
|
|
# Create paths to the etcd client ca, key, and cert file locations.
|
|
ca = os.path.join(etcd_dir, 'client-ca.pem')
|
|
key = os.path.join(etcd_dir, 'client-key.pem')
|
|
cert = os.path.join(etcd_dir, 'client-cert.pem')
|
|
|
|
# Save the client credentials (in relation data) to the paths provided.
|
|
reldata.save_client_credentials(key, cert, ca)
|
|
|
|
api_opts = FlagManager('kube-apiserver')
|
|
|
|
# Never use stale data, always prefer whats coming in during context
|
|
# building. if its stale, its because whats in unitdata is stale
|
|
data = api_opts.data
|
|
if data.get('--etcd-servers-strict') or data.get('--etcd-servers'):
|
|
api_opts.destroy('--etcd-cafile')
|
|
api_opts.destroy('--etcd-keyfile')
|
|
api_opts.destroy('--etcd-certfile')
|
|
api_opts.destroy('--etcd-servers', strict=True)
|
|
api_opts.destroy('--etcd-servers')
|
|
|
|
# Set the apiserver flags in the options manager
|
|
api_opts.add('--etcd-cafile', ca)
|
|
api_opts.add('--etcd-keyfile', key)
|
|
api_opts.add('--etcd-certfile', cert)
|
|
api_opts.add('--etcd-servers', connection_string, strict=True)
|
|
|
|
|
|
def render_files():
|
|
'''Use jinja templating to render the docker-compose.yml and master.json
|
|
file to contain the dynamic data for the configuration files.'''
|
|
context = {}
|
|
config = hookenv.config()
|
|
# Add the charm configuration data to the context.
|
|
context.update(config)
|
|
|
|
# Update the context with extra values: arch, and networking information
|
|
context.update({'arch': arch(),
|
|
'master_address': hookenv.unit_get('private-address'),
|
|
'public_address': hookenv.unit_get('public-address'),
|
|
'private_address': hookenv.unit_get('private-address')})
|
|
|
|
api_opts = FlagManager('kube-apiserver')
|
|
controller_opts = FlagManager('kube-controller-manager')
|
|
scheduler_opts = FlagManager('kube-scheduler')
|
|
|
|
# Get the tls paths from the layer data.
|
|
layer_options = layer.options('tls-client')
|
|
ca_cert_path = layer_options.get('ca_certificate_path')
|
|
server_cert_path = layer_options.get('server_certificate_path')
|
|
server_key_path = layer_options.get('server_key_path')
|
|
|
|
# Handle static options for now
|
|
api_opts.add('--min-request-timeout', '300')
|
|
api_opts.add('--v', '4')
|
|
api_opts.add('--client-ca-file', ca_cert_path)
|
|
api_opts.add('--tls-cert-file', server_cert_path)
|
|
api_opts.add('--tls-private-key-file', server_key_path)
|
|
|
|
scheduler_opts.add('--v', '2')
|
|
|
|
# Default to 3 minute resync. TODO: Make this configureable?
|
|
controller_opts.add('--min-resync-period', '3m')
|
|
controller_opts.add('--v', '2')
|
|
controller_opts.add('--root-ca-file', ca_cert_path)
|
|
|
|
context.update({'kube_apiserver_flags': api_opts.to_s(),
|
|
'kube_scheduler_flags': scheduler_opts.to_s(),
|
|
'kube_controller_manager_flags': controller_opts.to_s()})
|
|
|
|
# Render the configuration files that contains parameters for
|
|
# the apiserver, scheduler, and controller-manager
|
|
render_service('kube-apiserver', context)
|
|
render_service('kube-controller-manager', context)
|
|
render_service('kube-scheduler', context)
|
|
|
|
# explicitly render the generic defaults file
|
|
render('kube-defaults.defaults', '/etc/default/kube-defaults', context)
|
|
|
|
# when files change on disk, we need to inform systemd of the changes
|
|
call(['systemctl', 'daemon-reload'])
|
|
call(['systemctl', 'enable', 'kube-apiserver'])
|
|
call(['systemctl', 'enable', 'kube-controller-manager'])
|
|
call(['systemctl', 'enable', 'kube-scheduler'])
|
|
|
|
|
|
def render_service(service_name, context):
|
|
'''Render the systemd service by name.'''
|
|
unit_directory = '/lib/systemd/system'
|
|
source = '{0}.service'.format(service_name)
|
|
target = os.path.join(unit_directory, '{0}.service'.format(service_name))
|
|
render(source, target, context)
|
|
conf_directory = '/etc/default'
|
|
source = '{0}.defaults'.format(service_name)
|
|
target = os.path.join(conf_directory, service_name)
|
|
render(source, target, context)
|
|
|
|
|
|
def setup_basic_auth(username='admin', password='admin', user='admin'):
|
|
'''Create the htacces file and the tokens.'''
|
|
srv_kubernetes = '/srv/kubernetes'
|
|
if not os.path.isdir(srv_kubernetes):
|
|
os.makedirs(srv_kubernetes)
|
|
htaccess = os.path.join(srv_kubernetes, 'basic_auth.csv')
|
|
with open(htaccess, 'w') as stream:
|
|
stream.write('{0},{1},{2}'.format(username, password, user))
|
|
|
|
|
|
def setup_tokens(token, username, user):
|
|
'''Create a token file for kubernetes authentication.'''
|
|
srv_kubernetes = '/srv/kubernetes'
|
|
if not os.path.isdir(srv_kubernetes):
|
|
os.makedirs(srv_kubernetes)
|
|
known_tokens = os.path.join(srv_kubernetes, 'known_tokens.csv')
|
|
if not token:
|
|
alpha = string.ascii_letters + string.digits
|
|
token = ''.join(random.SystemRandom().choice(alpha) for _ in range(32))
|
|
with open(known_tokens, 'w') as stream:
|
|
stream.write('{0},{1},{2}'.format(token, username, user))
|