-
Notifications
You must be signed in to change notification settings - Fork 163
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
0 parents
commit 32886c3
Showing
49 changed files
with
3,944 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,23 @@ | ||
# Contributing to `PowerfulSeal` | ||
|
||
If you'd like to help us improve and extend this project, then we welcome your contributions! | ||
|
||
Below you will find some basic steps required to be able to contribute to the project. If you have any questions about this process or any other aspect of contributing to a Bloomberg open source project, feel free to send an email to opensource@bloomberg.net and we'll get your questions answered as quickly as we can. | ||
|
||
Pull Requests are always welcome, however they will only be accepted if they provide a reasonably test coverage. | ||
|
||
## Contribution Licensing | ||
|
||
Since `PowerfulSeal` is distributed under the terms of the [Apache Version 2 license](LICENSE), contributions that you make are licensed under the same terms. In order for us to be able to accept your contributions, we will need explicit confirmation from you that you are able and willing to provide them under these terms, and the mechanism we use to do this is called a Developer's Certificate of Origin [DCO](DCO.md). This is very similar to the process used by the Linux(R) kernel, Samba, and many other major open source projects. | ||
|
||
To participate under these terms, all that you must do is include a line like the following as the last line of the commit message for each commit in your contribution: | ||
|
||
Signed-Off-By: Random J. Developer <random@developer.example.org> | ||
|
||
The simplest way to accomplish this is to add `-s` or `--signoff` to your `git commit` command. | ||
|
||
You must use your real name (sorry, no pseudonyms, and no anonymous contributions). | ||
|
||
## Help / Documentation | ||
|
||
The [README](README.md) is the best place to start. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,25 @@ | ||
Developer's Certificate of Origin 1.1 | ||
|
||
By making a contribution to this project, I certify that: | ||
|
||
1. The contribution was created in whole or in part by me and I | ||
have the right to submit it under the open source license | ||
indicated in the file; or | ||
|
||
2. The contribution is based upon previous work that, to the best | ||
of my knowledge, is covered under an appropriate open source | ||
license and I have the right under that license to submit that | ||
work with modifications, whether created in whole or in part | ||
by me, under the same open source license (unless I am | ||
permitted to submit under a different license), as indicated | ||
in the file; or | ||
|
||
3. The contribution was provided directly to me by some other | ||
person who certified (1), (2) or (3) and I have not modified | ||
it. | ||
|
||
4. I understand and agree that this project and the contribution | ||
are public and that a record of the contribution (including all | ||
personal information I submit with it, including my sign-off) is | ||
maintained indefinitely and may be redistributed consistent with | ||
this project or the open source license(s) involved. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,202 @@ | ||
|
||
Apache License | ||
Version 2.0, January 2004 | ||
http://www.apache.org/licenses/ | ||
|
||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION | ||
|
||
1. Definitions. | ||
|
||
"License" shall mean the terms and conditions for use, reproduction, | ||
and distribution as defined by Sections 1 through 9 of this document. | ||
|
||
"Licensor" shall mean the copyright owner or entity authorized by | ||
the copyright owner that is granting the License. | ||
|
||
"Legal Entity" shall mean the union of the acting entity and all | ||
other entities that control, are controlled by, or are under common | ||
control with that entity. For the purposes of this definition, | ||
"control" means (i) the power, direct or indirect, to cause the | ||
direction or management of such entity, whether by contract or | ||
otherwise, or (ii) ownership of fifty percent (50%) or more of the | ||
outstanding shares, or (iii) beneficial ownership of such entity. | ||
|
||
"You" (or "Your") shall mean an individual or Legal Entity | ||
exercising permissions granted by this License. | ||
|
||
"Source" form shall mean the preferred form for making modifications, | ||
including but not limited to software source code, documentation | ||
source, and configuration files. | ||
|
||
"Object" form shall mean any form resulting from mechanical | ||
transformation or translation of a Source form, including but | ||
not limited to compiled object code, generated documentation, | ||
and conversions to other media types. | ||
|
||
"Work" shall mean the work of authorship, whether in Source or | ||
Object form, made available under the License, as indicated by a | ||
copyright notice that is included in or attached to the work | ||
(an example is provided in the Appendix below). | ||
|
||
"Derivative Works" shall mean any work, whether in Source or Object | ||
form, that is based on (or derived from) the Work and for which the | ||
editorial revisions, annotations, elaborations, or other modifications | ||
represent, as a whole, an original work of authorship. For the purposes | ||
of this License, Derivative Works shall not include works that remain | ||
separable from, or merely link (or bind by name) to the interfaces of, | ||
the Work and Derivative Works thereof. | ||
|
||
"Contribution" shall mean any work of authorship, including | ||
the original version of the Work and any modifications or additions | ||
to that Work or Derivative Works thereof, that is intentionally | ||
submitted to Licensor for inclusion in the Work by the copyright owner | ||
or by an individual or Legal Entity authorized to submit on behalf of | ||
the copyright owner. For the purposes of this definition, "submitted" | ||
means any form of electronic, verbal, or written communication sent | ||
to the Licensor or its representatives, including but not limited to | ||
communication on electronic mailing lists, source code control systems, | ||
and issue tracking systems that are managed by, or on behalf of, the | ||
Licensor for the purpose of discussing and improving the Work, but | ||
excluding communication that is conspicuously marked or otherwise | ||
designated in writing by the copyright owner as "Not a Contribution." | ||
|
||
"Contributor" shall mean Licensor and any individual or Legal Entity | ||
on behalf of whom a Contribution has been received by Licensor and | ||
subsequently incorporated within the Work. | ||
|
||
2. Grant of Copyright License. Subject to the terms and conditions of | ||
this License, each Contributor hereby grants to You a perpetual, | ||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable | ||
copyright license to reproduce, prepare Derivative Works of, | ||
publicly display, publicly perform, sublicense, and distribute the | ||
Work and such Derivative Works in Source or Object form. | ||
|
||
3. Grant of Patent License. Subject to the terms and conditions of | ||
this License, each Contributor hereby grants to You a perpetual, | ||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable | ||
(except as stated in this section) patent license to make, have made, | ||
use, offer to sell, sell, import, and otherwise transfer the Work, | ||
where such license applies only to those patent claims licensable | ||
by such Contributor that are necessarily infringed by their | ||
Contribution(s) alone or by combination of their Contribution(s) | ||
with the Work to which such Contribution(s) was submitted. If You | ||
institute patent litigation against any entity (including a | ||
cross-claim or counterclaim in a lawsuit) alleging that the Work | ||
or a Contribution incorporated within the Work constitutes direct | ||
or contributory patent infringement, then any patent licenses | ||
granted to You under this License for that Work shall terminate | ||
as of the date such litigation is filed. | ||
|
||
4. Redistribution. You may reproduce and distribute copies of the | ||
Work or Derivative Works thereof in any medium, with or without | ||
modifications, and in Source or Object form, provided that You | ||
meet the following conditions: | ||
|
||
(a) You must give any other recipients of the Work or | ||
Derivative Works a copy of this License; and | ||
|
||
(b) You must cause any modified files to carry prominent notices | ||
stating that You changed the files; and | ||
|
||
(c) You must retain, in the Source form of any Derivative Works | ||
that You distribute, all copyright, patent, trademark, and | ||
attribution notices from the Source form of the Work, | ||
excluding those notices that do not pertain to any part of | ||
the Derivative Works; and | ||
|
||
(d) If the Work includes a "NOTICE" text file as part of its | ||
distribution, then any Derivative Works that You distribute must | ||
include a readable copy of the attribution notices contained | ||
within such NOTICE file, excluding those notices that do not | ||
pertain to any part of the Derivative Works, in at least one | ||
of the following places: within a NOTICE text file distributed | ||
as part of the Derivative Works; within the Source form or | ||
documentation, if provided along with the Derivative Works; or, | ||
within a display generated by the Derivative Works, if and | ||
wherever such third-party notices normally appear. The contents | ||
of the NOTICE file are for informational purposes only and | ||
do not modify the License. You may add Your own attribution | ||
notices within Derivative Works that You distribute, alongside | ||
or as an addendum to the NOTICE text from the Work, provided | ||
that such additional attribution notices cannot be construed | ||
as modifying the License. | ||
|
||
You may add Your own copyright statement to Your modifications and | ||
may provide additional or different license terms and conditions | ||
for use, reproduction, or distribution of Your modifications, or | ||
for any such Derivative Works as a whole, provided Your use, | ||
reproduction, and distribution of the Work otherwise complies with | ||
the conditions stated in this License. | ||
|
||
5. Submission of Contributions. Unless You explicitly state otherwise, | ||
any Contribution intentionally submitted for inclusion in the Work | ||
by You to the Licensor shall be under the terms and conditions of | ||
this License, without any additional terms or conditions. | ||
Notwithstanding the above, nothing herein shall supersede or modify | ||
the terms of any separate license agreement you may have executed | ||
with Licensor regarding such Contributions. | ||
|
||
6. Trademarks. This License does not grant permission to use the trade | ||
names, trademarks, service marks, or product names of the Licensor, | ||
except as required for reasonable and customary use in describing the | ||
origin of the Work and reproducing the content of the NOTICE file. | ||
|
||
7. Disclaimer of Warranty. Unless required by applicable law or | ||
agreed to in writing, Licensor provides the Work (and each | ||
Contributor provides its Contributions) on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or | ||
implied, including, without limitation, any warranties or conditions | ||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A | ||
PARTICULAR PURPOSE. You are solely responsible for determining the | ||
appropriateness of using or redistributing the Work and assume any | ||
risks associated with Your exercise of permissions under this License. | ||
|
||
8. Limitation of Liability. In no event and under no legal theory, | ||
whether in tort (including negligence), contract, or otherwise, | ||
unless required by applicable law (such as deliberate and grossly | ||
negligent acts) or agreed to in writing, shall any Contributor be | ||
liable to You for damages, including any direct, indirect, special, | ||
incidental, or consequential damages of any character arising as a | ||
result of this License or out of the use or inability to use the | ||
Work (including but not limited to damages for loss of goodwill, | ||
work stoppage, computer failure or malfunction, or any and all | ||
other commercial damages or losses), even if such Contributor | ||
has been advised of the possibility of such damages. | ||
|
||
9. Accepting Warranty or Additional Liability. While redistributing | ||
the Work or Derivative Works thereof, You may choose to offer, | ||
and charge a fee for, acceptance of support, warranty, indemnity, | ||
or other liability obligations and/or rights consistent with this | ||
License. However, in accepting such obligations, You may act only | ||
on Your own behalf and on Your sole responsibility, not on behalf | ||
of any other Contributor, and only if You agree to indemnify, | ||
defend, and hold each Contributor harmless for any liability | ||
incurred by, or claims asserted against, such Contributor by reason | ||
of your accepting any such warranty or additional liability. | ||
|
||
END OF TERMS AND CONDITIONS | ||
|
||
APPENDIX: How to apply the Apache License to your work. | ||
|
||
To apply the Apache License to your work, attach the following | ||
boilerplate notice, with the fields enclosed by brackets "[]" | ||
replaced with your own identifying information. (Don't include | ||
the brackets!) The text should be enclosed in the appropriate | ||
comment syntax for the file format. We also recommend that a | ||
file or class name and description of purpose be included on the | ||
same "printed page" as the copyright notice for easier | ||
identification within third-party archives. | ||
|
||
Copyright 2017 Bloomberg Finance L.P. | ||
|
||
Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
|
||
http://www.apache.org/licenses/LICENSE-2.0 | ||
|
||
Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,7 @@ | ||
include LICENSE | ||
include README.md | ||
include powerfulseal/policy/ps-schema.json | ||
include powerfulseal/policy/example-config.yml | ||
include tests/node/example_inventory | ||
include tests/policy/example_config.yml | ||
include tests/policy/example_config2.yml |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,10 @@ | ||
INOTIFY_CALL ?= inotifywait -e modify -r ./powerfulseal ./tests | ||
PYTEST_CALL ?= pytest --cov powerfulseal/ --cov-report term-missing -vv | ||
|
||
test: | ||
$(PYTEST_CALL) | ||
|
||
watch: | ||
$(PYTEST_CALL) && while $(INOTIFY_CALL); do $(PYTEST_CALL); done | ||
|
||
.PHONY: test watch |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,99 @@ | ||
# PowerfulSeal | ||
|
||
__PowerfulSeal__ adds chaos to your Kubernetes clusters, so that you can detect problems in your systems as early as possible. It kills targeted pods and takes VMs up and down. | ||
|
||
It follows the [Principles of Chaos Engineering](http://principlesofchaos.org/), and is inspired by [Chaos Monkey](https://github.com/Netflix/chaosmonkey) | ||
|
||
Embrace the inevitable failure. __Embrace The Seal__. | ||
|
||
|
||
## Introduction | ||
|
||
__PowerfulSeal__ works in two modes: interactive and autonomous. | ||
|
||
__Interactive__ mode is designed to discover your cluster, and manually break things and see what happens. It operates on nodes, pods, deployments and namespaces. | ||
|
||
__Autonomous__ mode reads a policy file, which can contain any number of pod and node scenarios. Each scenario describes a list of matches, filters and actions to execute on your cluster. | ||
|
||
## Interactive mode | ||
|
||
Here's a sneak peek of what you can do in the interactive mode: | ||
|
||
![demo nodes](./media/video-nodes.gif) | ||
|
||
![demo pods](./media/video-pods.gif) | ||
|
||
|
||
## Autonomous mode | ||
|
||
Autonomous reads the scenarios to execute from the policy file, and runs them: | ||
|
||
1. The matches are combined together and deduplicated to produce an initial working set | ||
2. They are run through a series of filters | ||
3. For all the items remaining after the filters, all actions are executed | ||
|
||
![pipeline](./media/pipeline.png) | ||
|
||
|
||
## Writing policies | ||
|
||
A minimal policy file, doing nothing, looks like this: | ||
|
||
```yaml | ||
config: | ||
minSecondsBetweenRuns: 77 | ||
maxSecondsBetweenRuns: 100 | ||
|
||
nodeScenarios: [] | ||
|
||
podScenarios: [] | ||
``` | ||
The schemas are validated against the [powerful JSON schema](./powerfulseal/policy/ps-schema.json) | ||
A [full featured example](./tests/policy/example_config.yml) listing most of the available options can be found in the [tests](./tests/policy). | ||
## Setup | ||
Setup includes: | ||
- pointing PowerfulSeal at your Kubernetes cluster by giving it a Kubernetes config file | ||
- pointing PowerfulSeal at your cloud by specifying the cloud driver to use and providing credentials | ||
- making sure that PowerfulSeal can SSH into the nodes to execute commands on them | ||
- writing a set of policies | ||
These interactions are available: | ||
![pipeline](./media/setup.png) | ||
## FAQ | ||
### How is it different from Chaos Monkey ? | ||
PowerfulSeal was inspired by Chaos Monkey, but it differs in a couple of important ways. | ||
The Seal does: | ||
- speak Kubernetes | ||
- offer flexible, easy to write YAML scenarios | ||
- provide interactive mode with awesome tab-completion | ||
The Seal doesn't: | ||
- need external dependencies (db, Spinnaker), apart from SSH, cloud and Kubernetes API access | ||
- need you to setup ```cron``` | ||
|
||
### Can I contribute to The Seal ? | ||
|
||
We would love you to. In particular, it would be great to get help with: | ||
|
||
- get more [cloud drivers](./powerfulseal/clouddrivers/driver.py) | ||
- get more [awesome filters](./powerfulseal/policy/scenario.py) | ||
- __get an amazing logo__ | ||
- make the PowerfulSeal more powerful | ||
|
||
Check out our [CONTRIBUTING.md](CONTRIBUTING.md) file for more information about how to contribute. | ||
|
||
### Why a Seal ? | ||
|
||
It might have been inspired by [this comic](https://randowis.com/2015/01/07/the-tower/) | ||
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1 @@ | ||
|
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,16 @@ | ||
|
||
# Copyright 2017 Bloomberg Finance L.P. | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
|
||
|
Oops, something went wrong.