search

neoave / mrack

Multicloud use-case based multihost async provisioner for CIs and testing during development
Apache License 2.0
12 stars 14 forks source link

feat: Enable config drive in OpenStack #100

Closed netoarmando closed 3 years ago

netoarmando commented 3 years ago

By default Nova's metadata informatation if retrieved via HTTP, setting enable_config_drive to True in provisioning-config will make metadata available via a config drive, a special drive that are attached to an instance when it boots.

This is helpful when connection is not stable during host booting stage, host would be unreachable because cloud-init is failing to injecting SSH keys into it.

This reduces the chance of hosts being provisioned but not accessible.

Raw data on .mrack.db shown that setting as "" (empty string). This behavior continues if enable_config_drive is False or not set.

From /var/log/cloud-init.log with Config Drive disabled:

 2021-04-19 17:59:19,445 - dhcp.py[DEBUG]: Received dhcp lease on eth0 for ************/255.255.252.0
2021-04-19 17:59:19,445 - __init__.py[DEBUG]: Attempting setup of ephemeral network on eth0 with **********/22 brd ********
2021-04-19 17:59:19,445 - util.py[DEBUG]: Running command ['ip', '-family', 'inet', 'addr', 'add', '**********/22', 'broadcast', '*********', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True)
2021-04-19 17:59:19,453 - util.py[DEBUG]: Running command ['ip', '-family', 'inet', 'link', 'set', 'dev', 'eth0', 'up'] with allowed return codes [0] (shell=False, capture=True)
2021-04-19 17:59:19,457 - util.py[DEBUG]: Running command ['ip', '-4', 'route', 'add', '169.254.169.254/32', 'via', '********', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True)
2021-04-19 17:59:19,461 - util.py[DEBUG]: Running command ['ip', '-4', 'route', 'add', '0.0.0.0/0', 'via', '************', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True)
2021-04-19 17:59:19,469 - util.py[DEBUG]: Resolving URL: http://169.254.169.254 took 0.005 seconds
2021-04-19 17:59:19,469 - url_helper.py[DEBUG]: [0/1] open 'http://169.254.169.254/openstack' with {'url': 'http://169.254.169.254/openstack', 'allow_redirects': True, 'method': 'GET', 'timeout': 10.0, 'headers': {'User-Agent': 'Cloud-Init/19.4'}} configuration
2021-04-19 17:59:20,236 - url_helper.py[DEBUG]: Read from http://169.254.169.254/openstack (200, 94b) after 1 attempts
2021-04-19 17:59:20,236 - DataSourceOpenStack.py[DEBUG]: Using metadata source: 'http://169.254.169.254'
2021-04-19 17:59:20,236 - url_helper.py[DEBUG]: [0/6] open 'http://169.254.169.254/openstack' with {'url': 'http://169.254.169.254/openstack', 'allow_redirects': True, 'method': 'GET', 'timeout': 10.0, 'headers': {'User-Agent': 'Cloud-Init/19.4'}} configuration
2021-04-19 17:59:20,787 - url_helper.py[DEBUG]: Read from http://169.254.169.254/openstack (200, 94b) after 1 attempts
2021-04-19 17:59:20,787 - openstack.py[DEBUG]: Selected version '2018-08-27' from ['2012-08-10', '2013-04-04', '2013-10-17', '2015-10-15', '2016-06-30', '2016-10-06', '2017-02-22', '2018-08-27', 'latest']
2021-04-19 17:59:20,788 - url_helper.py[DEBUG]: [0/6] open 'http://169.254.169.254/openstack/2018-08-27/meta_data.json' with {'url': 'http://169.254.169.254/openstack/2018-08-27/meta_data.json', 'allow_redirects': True, 'method': 'GET', 'timeout': 10.0, 'headers': {'User-Agent': 'Cloud-Init/19.4'}} configuration

From /var/log/cloud-init.log with Config Drive enabled:

2021-04-19 17:03:19,837 - util.py[DEBUG]: Running command ['mount', '-o', 'ro', '-t', 'auto', u'/dev/sr0', '/run/cloud-init/tmp/tmpuoIbjo'] with allowed return codes [0] (shell=False, capture=True)
2021-04-19 17:03:19,873 - openstack.py[DEBUG]: Selected version '2018-08-27' from ['2012-08-10', '2013-04-04', '2013-10-17', '2015-10-15', '2016-06-30', '2016-10-06', '2017-02-22', '2018-08-27', 'latest']
2021-04-19 17:03:19,874 - util.py[DEBUG]: Reading from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/vendor_data.json (quiet=False)
2021-04-19 17:03:19,875 - util.py[DEBUG]: Read 2 bytes from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/vendor_data.json
2021-04-19 17:03:19,875 - util.py[DEBUG]: Reading from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/user_data (quiet=False)
2021-04-19 17:03:19,876 - openstack.py[DEBUG]: Failed reading optional path /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/user_data due to: [Errno 2] No such file or directory: '/run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/user_data'
2021-04-19 17:03:19,876 - util.py[DEBUG]: Reading from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/network_data.json (quiet=False)
2021-04-19 17:03:19,876 - util.py[DEBUG]: Read 393 bytes from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/network_data.json
2021-04-19 17:03:19,876 - util.py[DEBUG]: Reading from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/meta_data.json (quiet=False)
2021-04-19 17:03:19,877 - util.py[DEBUG]: Read 1840 bytes from /run/cloud-init/tmp/tmpuoIbjo/openstack/2018-08-27/meta_data.json
2021-04-19 17:03:19,878 - util.py[DEBUG]: Reading from /run/cloud-init/tmp/tmpuoIbjo/ec2/latest/meta-data.json (quiet=False)