Public bug reported: Azure IMDS service doesn't seem to be available during initial instance boot.
Cloud-init tries 4 times and gives up. This doesn't seem to be enough and cloud-init fallsback to basic network configuration of 1 network device, ignoring any additional devices the user had attached to the vm. Sometime after cloud-configuration completes, I'm able to properly run get_metadata_from_imds without issue $ python3 -c 'from cloudinit.sources.DataSourceAzure import get_metadata_from_imds; print(get_metadata_from_imds("eth0", 4))' Below is the excerpt of cloud-init failing to get IMDS data (which is emitted do to runs of get_metadata_from_imds()). 2018-12-05 18:07:53,893 - url_helper.py[DEBUG]: [0/4] open 'http://169.254.169.254/metadata/instance?api-version=2017-12-01' with {'url': 'http://169.254.169.254/metadata/instance?api-version=2017-12-01', 'allow_redirects': True, 'method': 'GET', 'timeout': 1.0, 'headers': {'User-Agent': 'Cloud-Init/18.4-24-g8f812a15-0ubuntu1', 'Metadata': 'true'}} configuration 2018-12-05 18:07:54,899 - url_helper.py[DEBUG]: Please wait 1 seconds while we wait to try again 2018-12-05 18:07:55,900 - url_helper.py[DEBUG]: [1/4] open 'http://169.254.169.254/metadata/instance?api-version=2017-12-01' with {'url': 'http://169.254.169.254/metadata/instance?api-version=2017-12-01', 'allow_redirects': True, 'method': 'GET', 'timeout': 1.0, 'headers': {'User-Agent': 'Cloud-Init/18.4-24-g8f812a15-0ubuntu1', 'Metadata': 'true'}} configuration 2018-12-05 18:07:56,902 - url_helper.py[DEBUG]: Please wait 1 seconds while we wait to try again 2018-12-05 18:07:57,904 - url_helper.py[DEBUG]: [2/4] open 'http://169.254.169.254/metadata/instance?api-version=2017-12-01' with {'url': 'http://169.254.169.254/metadata/instance?api-version=2017-12-01', 'allow_redirects': True, 'method': 'GET', 'timeout': 1.0, 'headers': {'User-Agent': 'Cloud-Init/18.4-24-g8f812a15-0ubuntu1', 'Metadata': 'true'}} configuration 2018-12-05 18:07:58,906 - url_helper.py[DEBUG]: Please wait 1 seconds while we wait to try again 2018-12-05 18:07:59,907 - url_helper.py[DEBUG]: [3/4] open 'http://169.254.169.254/metadata/instance?api-version=2017-12-01' with {'url': 'http://169.254.169.254/metadata/instance?api-version=2017-12-01', 'allow_redirects': True, 'method': 'GET', 'timeout': 1.0, 'headers': {'User-Agent': 'Cloud-Init/18.4-24-g8f812a15-0ubuntu1', 'Metadata': 'true'}} configuration 2018-12-05 18:08:00,910 - DataSourceAzure.py[DEBUG]: Ignoring IMDS instance metadata: HTTPConnectionPool(host='169.254.169.254', port=80): Max retries exceeded with url: /metadata/instance?api-version=2017-12-01 (Caused by ConnectTimeoutError(<urllib3.connection.HTTPConnection object at 0x7f2c9bb6f3c8>, 'Connection to 169.254.169.254 timed out. (connect timeout=1.0)')) ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: cloud-init 18.4-24-g8f812a15-0ubuntu1 ProcVersionSignature: Ubuntu 4.18.0-1003.3-azure 4.18.12 Uname: Linux 4.18.0-1003-azure x86_64 ApportVersion: 2.20.10-0ubuntu14 Architecture: amd64 CloudName: Azure Date: Wed Dec 5 18:18:23 2018 PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: cloud-init UpgradeStatus: No upgrade log present (probably fresh install) user_data.txt: ## template: jinja #cloud-config ssh_import_id : [chad.smith] hostname: SRU-worked-{{v1.cloud_name}} ** Affects: cloud-init (Ubuntu) Importance: High Status: Triaged ** Tags: amd64 apport-bug disco uec-images -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806975 Title: Azure: IMDS not enough retries during boot for network config To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1806975/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs