8e7d469595
Dict wrapper is used for string format method using
postponed keys resolving.
With this class, format will not fail in case if key not found,
and leaves the unknown key in the string 'as is'.
This behaviour is required as a workaround for strings with
bash-like variables like ${SOMEVAR} to not fail the format because
of 'unknown key: SOMEVAR'.
Returning the 'format' instead of 'replace' is required to use
the escaping of the '{{' '}}' in the string to get '{' '}'.
Change-Id: I1c2bbb083a544eb366c7b00eb1002cc4da652c33
96 lines
3.7 KiB
Python
96 lines
3.7 KiB
Python
# Copyright 2016 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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from devops.helpers.helpers import format_data
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from devops.helpers import subprocess_runner
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from devops import logger
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def generate_cloud_image_settings(cloud_image_settings_path, meta_data_path,
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user_data_path, admin_network,
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interface_name, admin_ip, admin_netmask,
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gateway,
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hostname,
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meta_data_content=None,
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user_data_content=None):
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# create dir for meta_data, user_data and cloud_ISO
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dir_path = os.path.dirname(cloud_image_settings_path)
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if not os.path.exists(dir_path):
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os.makedirs(dir_path)
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# create meta_data and user_data
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# Variables in the '{ }' that will be substituted with real values
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data_context = {
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"interface_name": interface_name,
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"address": admin_ip,
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"network": admin_network,
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"netmask": admin_netmask,
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"gateway": gateway,
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"hostname": hostname
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}
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if meta_data_content is None:
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meta_data_content = ("instance-id: iid-local1\n"
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"network-interfaces: |\n"
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" auto {interface_name}\n"
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" iface {interface_name} inet static\n"
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" address {address}\n"
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" network {network}\n"
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" netmask {netmask}\n"
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" gateway {gateway}\n"
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" dns-nameservers 8.8.8.8\n"
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"local-hostname: {hostname}")
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logger.debug("meta_data contains next data: \n{}".format(
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meta_data_content.format(**data_context)))
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with open(meta_data_path, 'w') as f:
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f.write(meta_data_content.format(**data_context))
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if user_data_content is None:
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user_data_content = ("\n#cloud-config\n"
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"ssh_pwauth: True\n"
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"chpasswd:\n"
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" list: |\n"
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" root:r00tme\n"
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" expire: False\n\n"
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"runcmd:\n"
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" - sudo ifup {interface_name}\n"
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" - sudo sed -i -e '/^PermitRootLogin/s/^"
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".*$/PermitRootLogin yes/' /etc/ssh/sshd_config\n"
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" - sudo service ssh restart\n"
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" - sudo route add default gw "
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"{gateway} {interface_name}")
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fmt_user_data = format_data(user_data_content, data_context)
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logger.debug("user_data contains next data: \n{}".format(fmt_user_data))
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with open(user_data_path, 'w') as f:
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f.write(fmt_user_data)
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# Generate cloud_ISO
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cmd = "genisoimage -output {} " \
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"-volid cidata -joliet " \
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"-rock {} {}".format(cloud_image_settings_path,
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user_data_path,
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meta_data_path)
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subprocess_runner.Subprocess.check_call(cmd)
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