Integration testing for salt states using aws ec2 container service
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A SaltConf16 use case talk by Steven Braverman of Dun & Bradstreet. Testing configuration changes for multiple server roles can be time consuming when real instances or legacy container systems are used. Applying configuration changes to each role in parallel can be difficult. So what's the best way to test configuration changes efficiently, quickly, and securely prior to applying them? See how an integrated test setup using AWS EC2 Container Service (ECS), AWS AutoScaling Group, and SaltStack simplifies the application of configuration changes and allows you to test configuration changes in parallel to reduce the time spent testing.
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Integration testing for salt states using aws ec2 container service
- 1. Integration Testing for Salt States Using AWS EC2 Container Service Steven Braverman
- 2. DevOps Engineer at D&B Graduated from UCLA with B.S. Cognitive Science Developer Background Love to surf STEVEN BRAVERMAN
- 3. • pd2jira_python • SIT Created: Contributed to: • SaltStack • Troposphere • Placebo OPEN SOURCE PROJECTS
- 4. ~175 year old company that prides on its capability to nurture invaluable relationships in business by uncovering truth and meaning from data.
- 5. DEVOPS
- 6. It is important to test applying states to roles efficiently, quickly, and securely prior to applying them to production servers. TESTING SALT STATES
- 14. MASTER PHP JENKINS NODES SALT MASTER/MINION SETUP JAVA DATABASE
- 15. MASTER PHP JENKINS NODES SALT MASTER/MINION SETUP JAVA DATABASE
- 16. MASTER PHP JAVA DATABASE JENKINS NODES SALT MASTER/MINION SETUP
- 17. MASTER PHP JAVA DATABASE JENKINS NODES SALT MASTER/MINION SETUP OPENVZ VIRTUAL MACHINES
- 18. SALT MASTER/MINION SETUP OPENVZ VIRTUAL MACHINES Pull-Request Pull-request builder Results
- 19. PROBLEMS • Linear integration testing is slow • Have to maintain legacy virtual machines
- 20. PROBLEMS • Linear integration testing is slow • Have to maintain legacy virtual machines No generic ways to run integration tests for SaltStack exist
- 22. Applying Salt states to a series of Docker images will: HYPOTHESES • Speed up the time it takes to apply state changes to roles • Allow for concurrent builds • Be easier to maintain
- 25. MASTER PHP JAVA DATABASE JENKINS NODES SIT Flow ASG
- 26. JENKINS NODES SIT Flow ASG 1. Create a pull-request 2. Pull salt repository and run unit tests 3. “Initiate” Jenkins node to be a Master 4. Launch Integration Test 5. “Teardown” node back to a Minion 6. Rinse and Repeat
- 28. INITIATION AND TEARDOWN • Pull down your Salt repo into the workspace • Run lint tests • Run unit tests/coverage Run SIT Teardown SITInitiate SITPre-SIT Tasks
- 29. INITIATION AND TEARDOWN • SED to configure Jenkins node master config • Start Salt-Master service • Start Redis service • Install SIT requirements Run SITPre-SIT Tasks Initiate SIT Teardown SIT
- 30. INITIATION AND TEARDOWN Pre-SIT Tasks Run SIT Teardown SITInitiate SIT 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed
- 31. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST ASGJENKINS NODE Run SIT
- 32. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST ASGJENKINS NODE ASG INSTANCE Run SIT
- 33. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST Run SIT JENKINS NODE ECS CLUSTER
- 34. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST Run SIT JENKINS NODE ECS CLUSTER
- 35. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST JENKINS NODE Run SIT ECS CLUSTER
- 36. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST JENKINS NODE Run SIT ECS CLUSTER
- 37. 1. SIT requests AutoScaling Group to provision a new instance 2. Instance provisions & SIT discovers it 3. ASG instance gets registered into ECS cluster 4. ECS Tasks begin (runs Docker container); states are applied to the minions 5. Tasks return applied states’ results to the Jenkins node 6. When all tasks have stopped, ASG instance gets terminated 7. Results are analyzed INTEGRATION TEST JENKINS NODE Run SIT
- 38. INITIATION AND TEARDOWN • SED to configure Jenkins node master back to easily editable state • Flush redis of data • Remove Salt-keys • Stop redis service • Stop Salt-master Pre-SIT Tasks Teardown SITInitiate SIT Run SIT
- 39. VPC Security Groups EC2 AutoScaling Group Launch Configuration AWS INFRASTRUCTURE Instance Profile Policy Role ECS Cluster CloudFormation
- 40. JENKINS NODES Results ASG • Time saved drastically • Maintenance • Open-source generic SIT tool DandB/Salt-Integration-Testing
- 41. Competitors ?
- 42. TOPIC Body text THANKS TO: Jeff Stibel Aaron Stibel Konstantin Antselovich DevOps Team Creative Team
- 43. TOPIC Body text THANK YOU (you may now stand)
- 44. Use the SaltConf16 event app to provide feedback for this presentation. (we’re all ears) QUESTIONS AND FEEDBACK
Editor's Notes
- #2: Good morning everyone! My name is Steven Braverman and this is: “Integration Testing for Salt States Using AWS EC2 Container Service I’d like you guys to keep a couple things in mind: The Salt integration Testing tool I will discuss today is real. It is an open source tool that any one can use starting today. Please hold all questions to the end, I have a lot to share and demo So SIT back and let’s get started
- #3: Dun & Bradstreet, not Dave & Busters
- #4: Add links here to your contributions/pull-requests
- #5: But really, most people that know Dun and Bradstreet probably don’t consider them to be a giant technology company. And those suspicions are about right the DevOps team I work with in Malibu is from a company that was recently acquired by D&B DevOps team works on a lot of really cool projects. Agile scrum workflow. 1 week sprints. We have a slim team
- #6: We use SaltStack for configuration management. It provides us with a stable environment while moving at a fast pace. Also keeps our codebase transparent to our developers. We accept pull-requests About 98% of our infrastructure is hosted using AWS. They offer a lot of really great tools and services. For our CI/CID we use Jenkins. Kohsuke is a smart guy and looking forward to version 2.0 which is currently in beta.
- #7: As a DevOps shop, it is important to test applying states to roles efficiently, quickly, and securely. This is what we want Just to make sure we are all on the same page about what it means to apply salt states to roles, I want to go over a quick analogy I came up with.
- #8: magine you are the owner of a fruit factory, and you have generated a machine that can clone fruits. You coined it the Fruit Master The fruit master contains blue prints to turn these things called minions into fruits.
- #9: Now what kind of fruit are we going to get?j
- #10: That depends on the role of the minion.
- #11: That depends on the role of the minion.
- #12: When the fruit master is ready to work, it sends its blue prints (the states( over to the minion based off the role After this, we are left with the fruits
- #14: In the real world out salt masters and minions are servers
- #15: And we usually have clusters of servers, and each can have several roles. For example, our PHP minions can have the role of server, php, and a role for each specific app
- #16: And we usually have clusters of servers, and each can have several roles. For example, our PHP minions can have the role of server, php, and a role for each specific app
- #17: For the most part, our CI nodes are immutable. This means they are each configured the same way and can all function the same way. It also means we can delete and provision them as necessary
- #18: One of our servers was an OpenVZ that contained several virtual machines–OpenVZ is an open source container-based alternative to hypervisor-based virtualization
- #19: One of our servers was an OpenVZ that contained several virtual machines–OpenVZ is an open source container-based alternative to hypervisor-based virtualization
- #20: (i.e. run full integration tests on every pull request) We implement a thing called freezes. We have a feature freeze and code freeze. Let’s say that It is Friday morning, and feature freeze is a few hours away. One might say you have plenty of time, but in reality, if all of your coworkers create a pull-request, and you are the last person to create a pull-request, your changes are probably not going into this sprint Generic does not exist Maintenance is manual. Manual processes are destined to have errors
- #21: (i.e. run full integration tests on every pull request) We implement a thing called freezes. We have a feature freeze and code freeze. Let’s say that It is Friday morning, and feature freeze is a few hours away. One might say you have plenty of time, but in reality, if all of your coworkers create a pull-request, and you are the last person to create a pull-request, your changes are probably not going into this sprint Generic does not exist Maintenance is manual. Manual processes are destined to have errors
- #22: Alernative to virtual host Docker Engine that runs in the same operating system as its host. This allows it to share a lot of the host operating system resources, but allows you to run a set of processes for a particular container. It also uses layered filesystems
- #23: Talk about what DevOps is and why it is important. Describe what has been lacking in testing States (i.e. run full integration tests on every pull request) Real-life example OpenVZ – a lot of overhead. It is a virutal box of a server Needs to be set up and maintained Friday Freezes
- #24: {{TALK ABOUT SIT}}
- #25: {{TALK ABOUT SIT}}
- #26: Explain the autoscaling group
- #27: Explain the autoscaling group
- #28: Explain the autoscaling group
- #29: Initiate: turn a slave into a master Teardown: turn a master back into a slave
- #30: Initiate: turn a slave into a master Teardown: turn a master back into a slave
- #31: Initiate: turn a slave into a master Teardown: turn a master back into a slave
- #32: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #33: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #34: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #35: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #36: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #37: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #38: (i.e. run full integration tests on every pull request) This may just be an image. Some sort of visual tool here would be nice
- #39: Initiate: turn a slave into a master Teardown: turn a master back into a slave QUICK NOTE, changing the workspace project each time is specific to our environment.
- #40: (i.e. run full integration tests on every pull request)
- #41: Explain the autoscaling group
- #42: Demo time I would like to show from start to finish this working
- #43: Vice Chairman CTO Director of DevOps