Morning at Lohika presentation about Spring Boot Microservices and related production issues, monitoring and tools.

2. SPRING BOOT
Before and after the release
2@twincengray @morningatlohika
Oleksiy Rezchykov
February 2015

3. About me
Software Test Engineer
Last 7 years working with Java and
Spring
XP/Agile/Lean practitioner
Lazy Pragmatic programmer
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4. Plan for today:
Introduction to Spring Boot
Black magic of auto configuration
Testing in Spring Boot
Logging and Monitoring
What’s next?
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5. Context
Playtika facts
Founded in 2010
Multiplatform social games developer
Headquarters in Tel-Aviv
Offices in US, Canada, Ukraine, Belarus,
Romania and Argentina
Industry facts
Social Casino segment is growing faster than
other Social Games segments
Mobile platforms is the main focus for
developers
More about Playtika and Social Casino genre:
http://www.slideshare.net/eladkushnir/final-ccsf-elad-kushnir
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6. Intro Boot
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7. Demo application architecture
ToDo Share app – to share ToDo’s
User Service
Account Service
ToDo Service
Tests projects
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8. Auto configuration
# Initializers
org.springframework.context.ApplicationContextInitializer=
org.springframework.boot.autoconfigure.logging.AutoConfigurationReportLoggingInitializer
# Auto Configure
org.springframework.boot.autoconfigure.EnableAutoConfiguration=
org.springframework.boot.autoconfigure.aop.AopAutoConfiguration,
org.springframework.boot.autoconfigure.amqp.RabbitAutoConfiguration,
org.springframework.boot.autoconfigure.MessageSourceAutoConfiguration,
org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration,
org.springframework.boot.autoconfigure.batch.BatchAutoConfiguration,
org.springframework.boot.autoconfigure.cloud.CloudAutoConfiguration,
org.springframework.boot.autoconfigure.dao.PersistenceExceptionTranslationAutoConfiguration,
org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchRepositoriesAutoConfiguration,
org.springframework.boot.autoconfigure.data.jpa.JpaRepositoriesAutoConfiguration,
org.springframework.boot.autoconfigure.data.mongo.MongoRepositoriesAutoConfiguration,
org.springframework.boot.autoconfigure.data.solr.SolrRepositoriesAutoConfiguration,
org.springframework.boot.autoconfigure.data.rest.RepositoryRestMvcAutoConfiguration,
org.springframework.boot.autoconfigure.data.web.SpringDataWebAutoConfiguration,
org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration,
org.springframework.boot.autoconfigure.gson.GsonAutoConfiguration,
org.springframework.boot.autoconfigure.hateoas.HypermediaAutoConfiguration,
org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration,
org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration,
org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration,
org.springframework.boot.autoconfigure.jdbc.JndiDataSourceAutoConfiguration,
org.springframework.boot.autoconfigure.jdbc.XADataSourceAutoConfiguration,
org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration,
org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration,
org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration,
org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration,
org.springframework.boot.autoconfigure.jms.activemq.ActiveMQAutoConfiguration,
org.springframework.boot.autoconfigure.jms.hornetq.HornetQAutoConfiguration,
org.springframework.boot.autoconfigure.jta.JtaAutoConfiguration,
org.springframework.boot.autoconfigure.elasticsearch.ElasticsearchAutoConfiguration,
org.springframework.boot.autoconfigure.elasticsearch.ElasticsearchDataAutoConfiguration,
org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration,
org.springframework.boot.autoconfigure.groovy.template.GroovyTemplateAutoConfiguration,
org.springframework.boot.autoconfigure.jersey.JerseyAutoConfiguration,
org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration,
org.springframework.boot.autoconfigure.mail.MailSenderAutoConfiguration,
org.springframework.boot.autoconfigure.mobile.DeviceResolverAutoConfiguration,
org.springframework.boot.autoconfigure.mobile.DeviceDelegatingViewResolverAutoConfiguration,
org.springframework.boot.autoconfigure.mobile.SitePreferenceAutoConfiguration,
org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration,
org.springframework.boot.autoconfigure.mongo.MongoDataAutoConfiguration,
org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration,
org.springframework.boot.autoconfigure.reactor.ReactorAutoConfiguration,
org.springframework.boot.autoconfigure.redis.RedisAutoConfiguration,
org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration,
org.springframework.boot.autoconfigure.security.FallbackWebSecurityAutoConfiguration,
org.springframework.boot.autoconfigure.social.SocialWebAutoConfiguration,
org.springframework.boot.autoconfigure.social.FacebookAutoConfiguration,
org.springframework.boot.autoconfigure.social.LinkedInAutoConfiguration,
org.springframework.boot.autoconfigure.social.TwitterAutoConfiguration,
org.springframework.boot.autoconfigure.solr.SolrAutoConfiguration,
org.springframework.boot.autoconfigure.velocity.VelocityAutoConfiguration,
org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration,
org.springframework.boot.autoconfigure.web.EmbeddedServletContainerAutoConfiguration,
org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration,
org.springframework.boot.autoconfigure.web.ServerPropertiesAutoConfiguration,
org.springframework.boot.autoconfigure.web.MultipartAutoConfiguration,
org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration,
org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration,
org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration,
org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration,
org.springframework.boot.autoconfigure.websocket.WebSocketAutoConfiguration
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9. Auto configuration
@Configuration
@Conditional
@ConditionalOnClass/@ConditionalOnMissingClass
@ConditionalOnBean/@ConditionalOnMissongBean
@ConditionalOnProperty
@ConditionalOnResource
@ConditionalOnWebApplication/@ConditionalOnNotWebA
pplication
@ConditionalOnExpression
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10. Auto configuration WTF’s
“The Spring Boot auto-configuration tries its best to ‘do
the right thing’, but sometimes things fail and it can be hard to
tell why.”
Spring Documentation
http://docs.spring.io/spring-boot/docs/1.2.1.RELEASE/reference/htmlsingle/#howto-troubleshoot-auto-
configuration
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11. Customizing auto configuration
Let’s try…
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12. Testing with Boot
Small tests
Tests with ApplicationContext
MVC tests (standalone/WAC)
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13. Boot Integration tests
@WebIntegrationTest
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14. Logging with Boot
Supports: Log4j, Logback, Log4j2
What we need is:
External log configuration (env bound)
Re-load of log configuration
Log storing for further processing
Logstash?Graylog and stuff
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15. Actuator – Boot monitoring
/autoconfig
/beans
/configprops
/dump
/env
/health
/info
/metrics
/mappings
/shutdown
/trace
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16. Actuator Metrics
System
DataSource
Tomcat session
Custom
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17. Monitoring tools
Jconsole
YourKit
AppDynamics
NewRelic
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18. What’s next
Spring Cloud (esp. Netflix OSS integration, Amazon/Cloud
Foundry tooling)
Spring Session
Dropwizard (!?!?!)
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19. Summary
If you want to use a tool – learn it
Spring Boot is not a silver bullet
If you want to sleep at night after releases - monitor
everything and be able to re-configure your application
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20. Materials
https://github.com/mcgray/Medium-test-poc
http://www.slideshare.net/mcgray
http://spring.io/blog/
http://projects.spring.io/spring-boot/
About us
https://twitter.com/BorodaMalezhyka
#вгеймдевенасовсем
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21. Thank you!
orezchykov@playtika.com
oleksiy.rezchykov@gmail.com
@twincengray
21@twincengray @morningatlohika
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