deploy with certainty
Post on 22-Jan-2018
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Deploy microservices with Certainty
Alex Soto@alexsotob
@alexsotob2
Alex Soto
Red Hat Engineer www.lordofthejars.com @alexsotob
Who Am I?
@alexsotob3
Questions
@alexsotob4
Any resemblance to reality is pure coincidence
@alexsotob5
Villains Database Application
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Villains Database Application
@alexsotob5
Villains Database Application
Villains
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Villains Database Application
Villains Crimes
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Villains Database Application
Villains CrimesGive Me Information of Gru
@alexsotob5
Villains Database Application
Villains CrimesGive Me Crimes of GruGive Me Information of Gru
@alexsotob5
Villains Database Application
Villains CrimesGive Me Crimes of GruGive Me Information of Gru
@alexsotob5
Villains Database Application
Villains CrimesGive Me Crimes of GruGive Me Information of Gru
@alexsotob6
Villains Database Application
@alexsotob6
Villains Database Application
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Villains Database Application
Consumer
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Villains Database Application
Consumer Producer
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Villains Database Application
Consumer Producer
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Villains Database Application
Consumer ProducerGET /villains/Gru
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Villains Database Application
Consumer ProducerGET /crimes/GruGET /villains/Gru
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Villains Database Application
Consumer ProducerGET /crimes/Gru
[{ "name": "Moon", "villain": "Gru", "wiki": "/wiki/Moon"}]
GET /villains/Gru
@alexsotob6
Villains Database Application
Consumer ProducerGET /crimes/Gru
[{ "name": "Moon", "villain": "Gru", "wiki": "/wiki/Moon"}]
GET /villains/Gru
"name": “Gru”,"areaOfInfluence": "World""crimes": [{ "name": "Moon", "wiki": "/wiki/Moon" }]
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Destroying Production Deployment
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@alexsotob9
Unit Tests and Mock
@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
10
@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
10
CheapNo setup of environment
@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
10
CheapNo setup of environment
FastMocks
@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
10
CheapNo setup of environment
FastMocks
ReliableAll local, no flaky
@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
10
CheapNo setup of environment
FastMocks
ReliableAll local, no flaky
TargetedYou know where it failed
@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
10
CheapNo setup of environment
FastMocks
ReliableAll local, no flaky
Not TrustworthyHow you understand the system
TargetedYou know where it failed
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Integration Tests
@alexsotob
Advantages Disadvantages
Integration Tests
12
@alexsotob
Advantages Disadvantages
Integration Tests
12
TrustworthyThey are real
@alexsotob
Advantages Disadvantages
Integration Tests
12
TrustworthyThey are real
SlowBoot service and dependencies
@alexsotob
Advantages Disadvantages
Integration Tests
12
TrustworthyThey are real
Not ReliableMay fail for any external reason
SlowBoot service and dependencies
@alexsotob
Advantages Disadvantages
Integration Tests
12
TrustworthyThey are real
Not ReliableMay fail for any external reason
SlowBoot service and dependencies
Become e2eYou easily end up with e2e tests
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Manual Tests
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Contract Tests
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Ownership of the Contracts
@alexsotob
OwnershipDifferent Approaches
16
@alexsotob
> Provider Contractsprovider centric, consumers adapts all or nothing
OwnershipDifferent Approaches
16
@alexsotob
> Provider Contractsprovider centric, consumers adapts all or nothing
> Consumer Contractsindividual consumer’s needs
OwnershipDifferent Approaches
16
@alexsotob
> Provider Contractsprovider centric, consumers adapts all or nothing
> Consumer Contractsindividual consumer’s needs
> Consumer-driven Contractsrepresentation of a provider's obligations to all its consumers
OwnershipDifferent Approaches
16
@alexsotob17
Consumer Side
Consumer Test
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Consumer Side
Stub Server
Consumer Test
Expectations
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Consumer Side
Stub Server
Consumer Test
Expectations
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Consumer Side
Stub Server
Consumer Test
Expectations
GET /crimes/Gru
@alexsotob17
Consumer Side
Stub Server
Consumer Test
Expectations
GET /crimes/Gru
[{"name":...]}
@alexsotob17
Consumer Side
Stub Server
Consumer Test
Expectations
GET /crimes/Gru
[{"name":...]}
@alexsotob17
Consumer Side
Stub Server
Consumer Test
Expectations
GET /crimes/Gru
[{"name":...]}
Sharing
Provider Side
Sharing
Provider
Provider Side
Sharing
Test
Provider
Provider Side
Sharing
Test
Provider
Provider Side
Sharing
Test
Provider
GET /crimes/Gru
[{"name":...]}
Provider Side
Sharing
Test
Provider
GET /crimes/Gru
[{"name":...]}
Provider Side
Sharing
Test
Provider
GET /crimes/Gru
[{"name":...]}
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Contract Tests Testing FrameworksConsumer Driven Contracts
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@alexsotob20
> Pact FoundationPact specification v3
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> Pact FoundationPact specification v3
> Integration with several languagesJVM, Ruby, Python, Go, .Net, Swift, JS
@alexsotob20
> Pact FoundationPact specification v3
> Integration with several languagesJVM, Ruby, Python, Go, .Net, Swift, JS
> Pact BrokerSharing contracts, API documentation, Overview of services
@alexsotob20
> Pact FoundationPact specification v3
> Integration with several languagesJVM, Ruby, Python, Go, .Net, Swift, JS
> Pact BrokerSharing contracts, API documentation, Overview of services
> Arquillian AlgeronArquillian ecosystem + Pact, Publishers/Retrievers, JBoss Forge
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Building With Certainty
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Deploy with Certainty
@alexsotob
Deploying ConsumerSteps on CI (Commit Stage)
23
@alexsotob
> Execute BuildPublish contracts as artefact version
Deploying ConsumerSteps on CI (Commit Stage)
23
@alexsotob
> Execute BuildPublish contracts as artefact version
> Run Head Provider Contract TestsCheck contract compatibility against version contract
Deploying ConsumerSteps on CI (Commit Stage)
23
@alexsotob
> Execute BuildPublish contracts as artefact version
> Run Head Provider Contract TestsCheck contract compatibility against version contract
> Run Prod Provider Contract TestsCheck contract compatibility against version contract
Deploying ConsumerSteps on CI (Commit Stage)
23
@alexsotob
> Execute BuildPublish contracts as artefact version
> Run Head Provider Contract TestsCheck contract compatibility against version contract
> Run Prod Provider Contract TestsCheck contract compatibility against version contract
> Release ConsumerTag contract with environment name
Deploying ConsumerSteps on CI (Commit Stage)
23
@alexsotob
Deploying ProviderSteps on CI (Commit Stage)
24
@alexsotob
> Execute BuildRun as usual
Deploying ProviderSteps on CI (Commit Stage)
24
@alexsotob
> Execute BuildRun as usual
> Run Provider Contract TestsCheck contract compatibility against latest contract
Deploying ProviderSteps on CI (Commit Stage)
24
@alexsotob
> Execute BuildRun as usual
> Run Provider Contract TestsCheck contract compatibility against latest contract
> Run Prod Provider Contract TestsCheck contract compatibility against environment contract
Deploying ProviderSteps on CI (Commit Stage)
24
@alexsotob
> Execute BuildRun as usual
> Run Provider Contract TestsCheck contract compatibility against latest contract
> Run Prod Provider Contract TestsCheck contract compatibility against environment contract
> Release Provider
Deploying ProviderSteps on CI (Commit Stage)
24
@alexsotob25
Automate Everything Enjoy your Vacations
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Let’s Wind Down
@alexsotob
Conclusions
27
@alexsotob
Conclusions
27
> End To End TestsLate feedback Expensive change Difficult to orchestrate
@alexsotob
Conclusions
27
> End To End TestsLate feedback Expensive change Difficult to orchestrate
> Consumer Driven ContractsFail fast Independent deployments Improve communication
More Info
https://github.com/arquillian-testing-microservices/
https://www.manning.com/books/testing-java-microservices
@alexsotob
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