Where we’re going, we don’t need servers!
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Microservices and Serverless continue to be two of the most hyped terms in our industry. As I’ve explored previously, some of that hype may be justified, but you need to take some time to cut to the heart of what makes them important if you want to get the most out of them. I remain convinced that Serverless technology offers the potential to make teams significantly more productive, but I still find people confused as to what serverless actually is, and whether or not things like Cloud Functions mean we no longer need to worry about microservices, and if we can pretend that servers no longer exist. In this talk, I’ll try to show just why serverless technology is so powerful, and I’ll also show how it fits in with microservices. As I will show, Microservices and Serverless goes together very well indeed - and that perhaps, just perhaps, you can stop worrying about servers.
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Where we’re going, we don’t need servers!
- 1. WHERE WE’RE GOING, WE DON’T NEED SERVERS! SAM NEWMAN https://www.flickr.com/photos/mindfrieze/4297260599/i
- 4. @samnewman Part 1: Cloud And Private Infrastructure
- 5. @samnewman Part 1: Cloud And Private Infrastructure Part 2: Serverless
- 6. @samnewman Part 1: Cloud And Private Infrastructure Part 2: Serverless Part 3: And Microservices
- 7. @samnewman Part 1: Cloud And Private Infrastructure https://www.flickr.com/photos/99095055@N04/15240217372/
- 8. @samnewman We are in love with our machines
- 10. @samnewman https://www.idc.com/getdoc.jsp?containerId=prUS45899920 65% of all IT spend is on premise as of 2020
- 11. @samnewman https://www.idc.com/getdoc.jsp?containerId=prUS45899920 65% of all IT spend is on premise as of 2020 On-premise spend {
- 12. @samnewman https://www.idc.com/getdoc.jsp?containerId=prUS45899920 65% of all IT spend is on premise as of 2020 Little change to public cloud since 2018, despite forecasts On-premise spend {
- 13. @samnewman According to IDC, over the next five years:
- 14. @samnewman “Spending on private cloud infrastructure will grow at a (compound annual growth rate) of 9.2%.” According to IDC, over the next five years:
- 15. @samnewman “Spending on private cloud infrastructure will grow at a (compound annual growth rate) of 9.2%.” According to IDC, over the next five years: Compared to the growth of public cloud over the same period being forecast as growing at 6%
- 16. @samnewman So public cloud is growing, but not as fast as private cloud
- 18. @samnewman A BRIEF (AND INCOMPLETE) HISTORY OF INFRA Physical Infrastructure
- 19. @samnewman A BRIEF (AND INCOMPLETE) HISTORY OF INFRA Physical Infrastructure Virtualised Infrastructure Early 2000
- 20. @samnewman A BRIEF (AND INCOMPLETE) HISTORY OF INFRA Physical Infrastructure Virtualised Infrastructure Early 2000 Awesome!
- 21. @samnewman A BRIEF (AND INCOMPLETE) HISTORY OF INFRA Physical Infrastructure Virtualised Infrastructure Early 2000 OpenStack 2010s Awesome!
- 22. @samnewman A BRIEF (AND INCOMPLETE) HISTORY OF INFRA Physical Infrastructure Virtualised Infrastructure Early 2000 OpenStack 2010s Awesome! Erm…
- 23. @samnewman A BRIEF (AND INCOMPLETE) HISTORY OF INFRA Physical Infrastructure Virtualised Infrastructure Early 2000 OpenStack 2010s Kubernetes-based platforms 2018+ Awesome! Erm…
- 24. @samnewman
- 29. @samnewman Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes
- 30. @samnewman Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS
- 31. @samnewman Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your App
- 32. @samnewman Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your App Needs patching and management
- 33. @samnewman You probably aren’t as good at running a data centre as Google, Amazon or Microsoft
- 34. @samnewman BETTER ON THE CLOUD? Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your App VM OS VM OS K8 K8 Container OS Your Pod
- 35. @samnewman BETTER ON THE CLOUD? Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your App VM OS VM OS K8 K8 Container OS Your Pod Cloud IAAS
- 36. @samnewman BETTER ON THE CLOUD? Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your App VM OS VM OS K8 K8 Container OS Your Pod Cloud Container Platform
- 39. @samnewman A service offering that abstracts away the notion of underlying machines
- 40. @samnewman KEY PROPERTIES OF SERVERLESS
- 41. @samnewman KEY PROPERTIES OF SERVERLESS No server management
- 42. @samnewman KEY PROPERTIES OF SERVERLESS No server management Autoscale based on use
- 43. @samnewman KEY PROPERTIES OF SERVERLESS No server management Autoscale based on use Implicit high availability
- 44. @samnewman KEY PROPERTIES OF SERVERLESS No server management Autoscale based on use Implicit high availability Pay as you go
- 45. @samnewman EXAMPLE SERVERLESS PRODUCTS Function As A Service (FAAS)
- 46. @samnewman EXAMPLE SERVERLESS PRODUCTS Function As A Service (FAAS) Messaging Solutions
- 47. @samnewman EXAMPLE SERVERLESS PRODUCTS Function As A Service (FAAS) Messaging Solutions Databases
- 48. @samnewman EXAMPLE SERVERLESS PRODUCTS Function As A Service (FAAS) Messaging Solutions Databases Storage
- 49. @samnewman EXAMPLE SERVERLESS PRODUCTS Function As A Service (FAAS) Messaging Solutions Databases Storage
- 50. @samnewman BETTER WITH FAAS? Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your Function Container OS Your App
- 51. @samnewman BETTER WITH FAAS? Underlying Hardware Operating System Hypervisor VM OS Container Management/Kubernetes Container OS Your Function Container OS Your App Cloud FAAS
- 53. Physical Infra Setup Compute Network Storage Virtualised Infra
- 54. Physical Infra Setup CoAAS Managed DBs Managed Services Compute Network Storage Virtualised Infra
- 55. Physical Infra Setup CoAAS Managed DBs Managed Services Compute Network Storage Virtualised Infra FAAS BAAS Messaging Serverless
- 56. Physical Infra Setup Platform As A Service CoAAS Managed DBs Managed Services Compute Network Storage Virtualised Infra FAAS BAAS Messaging Serverless
- 57. Physical Infra Setup Platform As A Service CoAAS Managed DBs Managed Services Less Infra Overhead Compute Network Storage Virtualised Infra FAAS BAAS Messaging Serverless
- 58. Physical Infra Setup Platform As A Service CoAAS Managed DBs Managed Services Less Infra Overhead Greater Control Compute Network Storage Virtualised Infra FAAS BAAS Messaging Serverless
- 59. @samnewman FAAS In A Nutshell
- 60. @samnewman FAAS IN A NUTSHELL FAAS Platform
- 61. @samnewman FAAS IN A NUTSHELL FAAS Platform Function Launched Automatically
- 62. @samnewman FAAS IN A NUTSHELL FAAS Platform Function Triggered By: Launched Automatically
- 63. @samnewman FAAS IN A NUTSHELL FAAS Platform API Call Function Triggered By: Launched Automatically
- 64. @samnewman FAAS IN A NUTSHELL FAAS Platform API Call Message Function Triggered By: Launched Automatically
- 65. @samnewman FAAS IN A NUTSHELL FAAS Platform API Call Message File Function Triggered By: Launched Automatically
- 66. @samnewman FAAS IN A NUTSHELL FAAS Platform API Call Message Time-based File Function Triggered By: Launched Automatically
- 67. @samnewman Function FAAS IN A NUTSHELL FAAS Platform API Call Message Time-based File Function Triggered By: Launched Automatically Scales up on demand
- 68. @samnewman Function FAAS IN A NUTSHELL FAAS Platform API Call Message Time-based File Function Triggered By: Launched Automatically Function Scales up on demand
- 69. @samnewman Function FAAS IN A NUTSHELL FAAS Platform API Call Message Time-based File Function Triggered By: Launched Automatically Function Function Scales up on demand
- 70. @samnewman Function FAAS IN A NUTSHELL FAAS Platform API Call Message Time-based File Function Triggered By: Launched Automatically Function Function Scales up on demand Pay as you go
- 73. @samnewman FAAS LIMITATIONS Time limited Runtime restrictions
- 74. @samnewman FAAS LIMITATIONS Time limited Runtime restrictions Stateless
- 75. @samnewman FAAS LIMITATIONS Time limited Runtime restrictions Stateless Limited ability to control scale-up
- 76. @samnewman FAAS LIMITATIONS Time limited Runtime restrictions Stateless Limited ability to control scale-up Often have to rely on platform observability
- 77. @samnewman FAAS is the best abstraction we’ve come up with for developer-friendly deployment of code since Heroku
- 79. @samnewman Less infrastructure management More focus on delivering value
- 83. @samnewman Part 3: Microservices and Serverless https://www.flickr.com/photos/mustangjoe/20437315996/
- 84. @samnewman ANATOMY OF A MICROSERVICE Shipping
- 85. @samnewman ANATOMY OF A MICROSERVICE Shipping Shipping Shipping
- 86. @samnewman ANATOMY OF A MICROSERVICE Shipping Shipping Shipping Multiple Instances
- 87. @samnewman ANATOMY OF A MICROSERVICE Shipping Shipping Shipping Multiple Instances
- 88. @samnewman ANATOMY OF A MICROSERVICE Shipping Shipping Shipping Multiple Instances
- 89. @samnewman ANATOMY OF A MICROSERVICE Shipping Shipping Shipping Multiple Instances Distribute across failure planes
- 90. @samnewman AZ-3AZ-2AZ-1 ANATOMY OF A MICROSERVICE Shipping Shipping Shipping Multiple Instances Distribute across failure planes
- 91. @samnewman In general, a microservice instance is assumed to be permanently running waiting for something to happen
- 92. @samnewman In general, a microservice instance is assumed to be permanently running waiting for something to happen They can be deployed on to physical machines, VMs, or containers
- 98. @samnewman Think of a function less as a code concept, more as a deployment concept
- 99. @samnewman A GOOD STARTING POINT Shipping
- 100. @samnewman A GOOD STARTING POINT Shipping Shipping <<function>>
- 101. @samnewman A GOOD STARTING POINT Shipping Shipping <<function>> Helps gain familiarity with the FAAS concepts and tooling
- 102. @samnewman A GOOD STARTING POINT Shipping Shipping <<function>> Helps gain familiarity with the FAAS concepts and tooling Single deployable
- 103. @samnewman A GOOD STARTING POINT Shipping Shipping <<function>> Helps gain familiarity with the FAAS concepts and tooling Single deployable Drastically reduced infra work
- 106. @samnewman AGGREGATES “A cluster of associated objects that are treated as a unit for the purpose of data changes” - Eric Evans, Domain-Driven Design
- 107. @samnewman AGGREGATES “A cluster of associated objects that are treated as a unit for the purpose of data changes” - Eric Evans, Domain-Driven Design We want to manage an aggregate as a single “entity” in terms of state changes
- 108. @samnewman AGGREGATES “A cluster of associated objects that are treated as a unit for the purpose of data changes” - Eric Evans, Domain-Driven Design We want to manage an aggregate as a single “entity” in terms of state changes We want all operations which manage the state to behave in a consistent fashion
- 109. @samnewman AGGREGATE MANAGEMENT AS A FUNCTION Shipping
- 110. @samnewman AGGREGATE MANAGEMENT AS A FUNCTION Shipping Identify aggregates within your microservice
- 111. @samnewman AGGREGATE MANAGEMENT AS A FUNCTION Shipping Route Delivery Consignment Identify aggregates within your microservice
- 112. @samnewman AGGREGATE MANAGEMENT AS A FUNCTION Shipping Route Delivery Consignment Identify aggregates within your microservice One function can manage all operations of the aggregate
- 113. @samnewman AGGREGATE MANAGEMENT AS A FUNCTION Shipping Route Delivery Consignment Identify aggregates within your microservice One function can manage all operations of the aggregate Hide this detail from consumers
- 119. @samnewman MORE SERVERLESS? Shipping <<function>> Shipping <<function>> Shipping <<function>> Serverless DB Autoscaling Implicit High Availability
- 120. @samnewman MORE SERVERLESS? Shipping <<function>> Shipping <<function>> Shipping <<function>> Serverless DB Autoscaling Implicit High Availability Pay for what you use
- 121. @samnewman Extreme Caution! Serverless databases can be different to what you are used to
- 123. @samnewman MESSAGING
- 124. @samnewman MESSAGING
- 125. @samnewman MESSAGING
- 126. @samnewman MESSAGING
- 127. @samnewman MESSAGING Both AWS and Azure have lots of great options
- 128. @samnewman MESSAGING Both AWS and Azure have lots of great options Again, behaviour can be different to what you’re used to
- 129. @samnewman MESSAGING Both AWS and Azure have lots of great options Again, behaviour can be different to what you’re used to For Kubernetes fans? Well…
- 131. @samnewman Pick the highest level abstraction you are happy with
- 132. Physical Infra Setup Platform As A Service CoAAS Managed DBs LessInfraOverhead MoreLowLevelAccess GreaterControl Compute Network Storage Virtualised Infra FAAS BAAS Messaging Serverless
- 133. @samnewman Offload work to someone who can do it better than you
- 134. @samnewman You won’t know until you try
- 136. @samnewman THANKS!