Usare la tecnologia Container su AWS
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I container sono una tecnologia che permette di eseguire un'applicazione, con le relative dipendenze, in processi e risorse isolate all’interno di un sistema operativo condiviso. Consentono di creare con la massima semplicità un pacchetto contenente codice, configurazioni base e dipendenze di un'applicazione, da impiegare come elemento atomico per ottenere ambienti uniformi, efficienza operativa, produttività di sviluppo e controllo delle versioni. In questa sessione approfondiremo come usare i container sul cloud AWS per creare applicazioni a microservizi affidabili e scalabili sfruttando i vantaggi del cloud, ad esempio l'elasticità, la disponibilità, la sicurezza e le economie di scala.
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Usare la tecnologia Container su AWS
- 1. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved.© 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Containers at AWS November 2018 Massimo Re Ferré, Principal Solutions Architect AWS
- 2. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. It all starts with an app https://github.com/mreferre/yelb
- 3. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. It all starts with an app https://github.com/mreferre/yelb
- 4. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. It all starts with an app How does the setup of this small piece look like? https://github.com/mreferre/yelb
- 5. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. In short: a big mess A lot of All these stuff are very much “OS distribution sensitive” Linux Linux Linux
- 6. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. In short: a big mess Not to mention packages incompatibilities across multiple applications running on the same host/OS Linux
- 7. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Enter Docker dockerfile docker build docker image docker run Linux docker container Docker runtime Complete Decoupling Start of my image. It could be an OS (e.g. Ubuntu) or it could be a higher level abstraction (e.g. Node installed on an OS)
- 8. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Enter Docker My Laptop docker image(s) docker container(s)
- 9. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Single-instance containers deployments OS Instance Easy, all is good
- 10. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Multi-instance containers deployments OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance Hard, not very practical and not scalable
- 11. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Multi-instance containers deployments Orchestrator OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance Agent Agent Agent Agent Agent AgentAgent
- 12. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Multi-instance containers deployments OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance Agent Agent Agent Agent Agent AgentAgent Orchestrator How do we solve the control plane problem?
- 13. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. AWS Lambda Amazon EC2 Bare Metal Amazon EKS VMcontainerfunction Amazon Lightsail Levelofabstraction Provider space (managed by AWS) Consumer space (managed by the customer) Amazon ECS physicalserver
- 14. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Elastic Container Service (ECS): the user view EC2 Container Instance EC2 Container Instance EC2 Container Instance EC2 Container Instance EC2 Container Instance EC2 Container Instance EC2 Container Instance Agent Agent Agent Agent Agent AgentAgent ECS Control Plane (managed service) ECS Cluster Resource
- 15. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. What is EKS? “Run Kubernetes for me.”
- 16. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. What customers asked us “Give us an upstream experience.” “Please don’t fork.” “Make sure it’s compatible”
- 17. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. EKS (High level architecture) Availability Zone 1 Master Master Availability Zone 2 Availability Zone 3 Master Workers Workers Workers Customer Account AWS Managed
- 18. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. EKS (High level consumption flow) mycluster.eks.amazonaws.com Availability Zone 1 Availability Zone 2 Availability Zone 3 Kubectl
- 19. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Multi-instance containers deployments OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance OS Instance Agent Agent Agent Agent Agent AgentAgent Orchestrator How do we solve the data plane problem?
- 20. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. AWS Lambda Amazon EC2 AWS Fargate Amazon EKS VMcontainerfunction Amazon Lightsail Levelofabstraction Provider space (managed by AWS) Consumer space (managed by the customer) Amazon ECS physicalserver Bare Metal
- 21. © 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved. AWS Fargate