Age | Commit message (Collapse) | Author |
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Cloud tests have been replaced with integration tests
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Also added a new (currently experimental) systemd-networkd renderer,
and includes a small refactor to cc_resolv_conf.py to support the
resolved.conf used by systemd-resolved.
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This was painful, but it finishes a TODO from cloudinit/subp.py.
It moves the following from util to subp:
ProcessExecutionError
subp
which
target_path
I moved subp_blob_in_tempfile into cc_chef, which is its only caller.
That saved us from having to deal with it using write_file
and temp_utils from subp (which does not import any cloudinit things now).
It is arguable that 'target_path' could be moved to a 'path_utils' or
something, but in order to use it from subp and also from utils,
we had to get it out of utils.
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This ensures that Travis will not kill our tests if fetching images is
taking a long time.
In implementation terms, this introduces a context manager which will
spin up a multiprocessing.Process in the background and print a dot to
stdout every 10 seconds. The process is terminated when the context
manager exits.
This also drop the use of travis_wait, which was being used to work
around this issue.
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This enables warnings produced by pylint for unused variables (W0612),
and fixes the existing errors.
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This was broken probably when we inserted the ssh keys into Platform.
tox -e citest tree_run
and
tox -e citest bddeb
would fail with KeyError in Platform.init due to lack of a data_dir.
Also here are a few fixes found from attempting to make it work.
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This enables integration tests to utilize AWS EC2 as a testing platform by
utilizing the boto3 Python library.
Usage will create and delete a custom VPC for every run. All resources
will be tagged with the ec2 tag, 'cii', and the date (e.g.
cii-20171220-102452). The VPC is setup with both IPv4 and IPv6
capabilities, but will only hand out IPv4 addresses by default. Instances
will have complete Internet access and have full ingress and egress access
(i.e. no firewall).
SSH keys are generated with each run of the integration tests with the key
getting uploaded to AWS at the start of tests and deleted on exit. To
enable creation when the platform is setup the SSH generation code is
moved to be completed by the platform setup and not during image setup.
The nocloud-kvm platform was updated with this change.
Creating a custom image will utilize the same clean script,
boot_clean_script, that the LXD platform uses as well. The custom AMI is
generated, used, and de-registered after a test run.
The default instance type is set to t2.micro. This is one of the smallest
instance types and is free tier eligible.
The default timeout for ec2 was increased to 300 from 120 as many tests
hit up against the 2 minute timeout and depending on region load can
go over.
Documentation for the AWS platform was added with the expected
configuration files for the platform to be used. There are some
additional whitespace changes included as well.
pylint exception was added for paramiko and simplestreams. In the past
these were not already flagged due to no __init__.py in the subdirectories
of files that used these. boto3 was added to the list of dependencies in
the tox ci-test runner.
In order to grab console logs on EC2 the harness will now shut down an
instance before terminating and before collecting the console log. This
is to address a behavior of EC2 where the console log is refreshed very
infrequently, but one point when it is refreshed is after shutdown.
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The motivation for this is that
a.) 1.7.1 runs with python 3.6 (bionic)
b.) we want to run pylint on tests/ and tools for the same reasons
that we want to run it on cloudinit/
The changes are described below.
- Update tox.ini to invoke pylint v1.7.1.
- Modify .pylintrc generated-members ignore mocked object members (m_.*)
- Replace "dangerous" params defaulting to {}
- Fix up cloud_tests use of platforms
- Cast some instance objects to with dict()
- Handle python2.7 vs 3+ ConfigParser use of readfp (deprecated)
- Update use of assertEqual(<boolean>, value) to assert<Boolean>(value)
- replace depricated assertRegexp -> assertRegex
- Remove useless test-class calls to super class
- Assign class property accessors a result and use it
- Fix missing class member in CepkoResultTests
- Fix Cheetah test import
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3 things here:
a.) link to a bug that we opened to track what made us add
dns entries for hostname of our guests.
b.) spelling fix.
c.) raise an instance of a NotImplementedError not the class.
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Integration test harness changes:
* Enable collection of console log in nocloud-kvm and lxd.
* Collect the console log to results for all test runs.
* change 'tmpfile' to pick name locally instead of using 'mktemp'.
* drop the 'instance' attribute from nocloud-kvm Image and
demote LXDImage.instance to a private attribute.
This is because Images do not actually have instances.
(LXDImage internally uses a booted system to modify the image).
* Add 'TargetBase' as a superclass of Image and Instance providing
implementations of execute, read_data, write_data, pull_file,
and push_file. These all depend on an implementation of _execute.
* Improve '_execute' implementations to support accepting stdin.
* execute supports 'rcs=False' meaning 'do not raise exception'.
* Drop support for pylxd < 2.2. older versions cannot determine
exit code of 'execute', which makes them unusable.
* make NoCloudKVMInstance._execute run as root via sudo. This required
some changes so that 'hostname' could be reverse-looked up in order
to avoid sudo taking a long time (~20 seconds).
* re-use existing ssh connection in nocloud-kvm.
Test changes here:
* do not use /tmp, but rather /var/tmp (LP: #1707222)
* make keys_to_console assertions more strict.
* change user test cases to always add default (ubuntu) user
so that nocloud-kvm's execute which operates over ssh can work.
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The NoCloud KVM platform includes:
* Downloads daily Ubuntu images using streams and store in
/srv/images
* Image customization, if required, is done using
mount-image-callback otherwise image is untouched
* Launches KVM via the xkvm script, a wrapper around
qemu-system, and sets custom port for SSH
* Generation and inject an SSH (RSA 4096) key pair to use for
communication with the guest to collect test artifacts
* Add method to produce safe shell strings by base64 encoding
the command
Additional Changes:
* Set default backend to use LXD
* Verify not running script as root in order to prevent images
from becoming owned by root
* Removed extra quotes around that were added when collecting
the cloud-init version from the image
* Added info about each release as previously the lxd backend
was able to query that information from pylxd image info,
however, other backends will not be able to obtain the same
information as easily
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Massive update to clean up and greatly enhance the integration testing
framework developed by Wesley Wiedenmeier.
- Updated tox environment to run integration test 'citest' to utilize
pylxd 2.2.3
- Add support for distro feature flags
- add framework for feature flags to release config with feature groups
and overrides allowed in any release conf override level
- add support for feature flags in platform and config handling
- during collect, skip testcases that require features not supported by
the image with a warning message
- Enable additional distros (i.e. centos, debian)
- Add 'bddeb' command to build a deb from the current working tree
cleanly in a container, so deps do not have to be installed on host
- Adds a command line option '--preserve-data' that ensures that
collected data will be left after tests run. This also allows the
directory to store collected data in during the run command to be
specified using '--data-dir'.
- Updated Read the Docs testing page and doc strings for pep 257
compliance
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The adds in end-to-end testing of cloud-init. The framework utilizes
LXD and cloud images as a backend to test user-data passed in.
Arbitrary data is then captured from predefined commands specified
by the user. After collection, data verification is completed by
running a series of Python unit tests against the collected data.
Currently only the Ubuntu Trusty, Xenial, Yakkety, and Zesty
releases are supported. Test cases for 50% of the modules is
complete and available.
Additionally a Read the Docs file was created to guide test
writing and execution.
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