Hashistack : orchestrer des applications Cloud Native avec simplicité

Lorsqu'on parle d'orchestration de conteneurs, d'exécution d'applications Cloud Native, tout le monde se tourne vers kubernetes. Et pourtant, d'autres solutions existent. L'une d'elle est particulièrement efficace et se base sur une suite d'outils libres développés par Hashicorp : Consul et Nomad en sont les briques principales.

Voyons ensemble et en démos comment mettre en oeuvre une telle stack et pourquoi pas vous faire changer d'avis sur l'orchestration de vos applications.

Transcript

1. Hashistack Orchestrer des applications Cloud Native avec simplicité Yves Brissaud  @_crev_
2. Cloud Native ?
3. microservices conteneurs / docker kubernetes 
4. exploiter les possibilités du cloud écrite pour le cloud http://pzf.fremantle.org/2010/05/cloud-native.html
5.  https://whvn.cc/56532
6. https://whvn.cc/56532
7.      elasticité
8. https://gotocph.com/2018/sessions/612
9. Yves Brissaud  @_crev_  eunomie  yves.brissaud@squarescale.com Tech Lead Build Infrastructures and Deploy Cloud Native Applications Seamlessly | Automatically | Instantly  @sqscale  squarescale.com
10. Full Remote | |
11. https://wallpaperscraft.com/download/rings_rubber_background_heap_80332/3821x2560
12.     
13. idempotence application infrastructure
14. https://whvn.cc/569648
16. Packaging Immutabilité Idempotence
17. https://www.nomadproject.io/
18. Orchestrateur Lifecycle Rolling deploys Blue green Service, batch, system
19. Drivers Docker, rkt JVM qemu plugins nomad >= 0.9
20. Facile à déployer 1 binaire linux / windows / mac autopilot
21. job "hello" { type = "service" datacenters = ["dc1"] group "world" { count = 3 task "hello-api" { driver = "docker" config { image = "hashicorp/http-echo" args = ["-text=Hello!"] port_map {
22. job "run-hook" { datacenters = ["dc1"] type = "batch" periodic { cron = "@hourly" prohibit_overlap = true } group "run-hook" { count = 1 task "curl" { driver = "exec"
23. job "notify-event" { type = "batch" parameterized { payload = "required" meta_required = ["email"] } group "notify" { task "notify" { driver = "docker" dispatch_payload { file = "config.json"
26. https://www.consul.io/
27. Service Discovery Service Con guration Service Segmentation
28. Enregistre chaque service Health Checks (http, tcp, grpc, script) Découverte API / DNS (SRV) Service Discovery
29. # dig srv web.service.consul ;; ANSWER SECTION: web.service.consul. 0 IN SRV 1 1 3000 2310.addr.dc1.consul. web.service.consul. 0 IN SRV 1 1 3000 2600.addr.dc1.consul. web.service.consul. 0 IN SRV 1 1 3000 2010.addr.dc1.consul. ;; ADDITIONAL SECTION: 2310.addr.dc1.consul. 0 IN A 10.2.49.9 ip-10-0-6-93.node.dc1.consul. 0 IN TXT "cluster=app" ip-10-0-6-93.node.dc1.consul. 0 IN TXT "group=worker" 2600.addr.dc1.consul. 0 IN A 10.2.96.3 ip-10-0-22-143.node.dc1.consul. 0 IN TXT "group=worker" ip-10-0-22-143.node.dc1.consul. 0 IN TXT "consul-network-se
30. intégration load balancers Trae k Fabio Envoy Service Discovery
31. Distributed KV Store Watches Distributed Locks Service Con guration
32. Service Access Graph Intentions Auto TLS encrypted communications authorization Service Segmentation
33. Facile à déployer 1 binaire linux / windows / mac autopilot
36.     
37. Déployer Consul & Nomad Con gurer (docker, dns, etc) Répétable 
38. https://www.packer.io/
39. Construction d'images machine Installation / con guration
40. AWS, Azure, GCP, DigitalOcean, OpenStack VirtualBox, VMware Docker, LXC ...
41. { "builders": [{ "type": "amazon-ebs", "region": "eu-west-1", "instance_type": "t3.small", "source_ami_filter": { "filters": { "virtualization-type": "hvm", "name": "CoreOS-stable-*", "root-device-type": "ebs" }, "owners": ["595879546273"], "most_recent": true
42. Infrastructure Services externes 
43. https://www.terraform.io/
44. Infrastructure as Code
45. Prévisualisation avant changement Gestion d'état
46. Multi environments Modules Multi-providers
47.  J'adore quand un plan se déroule sans accroc. - Hannibal
48. 1. Construction de l'image système
49. 2 Construction de l'infrastructure
50. 3. Consul
51. 4. Nomad
52. 5. Docker Votre application
53. Demo
54. Deploying and Scaling Microservices with Docker and Kubernetes https://container.training/kube-selfpaced.yml.html
55. + 1 outil, 1 rôle ~ Consul Suite cohérente Documentation Facile à déployer
56. + Développement actif Consul 1.4 Nomad ~0.9 Terraform ~0.12
57. - kubernetes
58. Hashistack Packer, Terraform, Consul, Nomad Orchestrer des applications Cloud Native avec simplicité Yves Brissaud  @_crev_