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_
   

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2. Cloud Native ?
   

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3. microservices
   conteneurs /
   docker
   kubernetes
   
   

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4. exploiter les possibilités du cloud
   écrite pour le cloud
   http://pzf.fremantle.org/2010/05/cloud-native.html
   

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5. 
   https://whvn.cc/56532
   

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6. https://whvn.cc/56532
   

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7. 
   
     
   elasticité
   

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8. https://gotocph.com/2018/sessions/612
   

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9. Yves Brissaud
    @_crev_
    eunomie
    yves.brissaud@squarescale.com
   Tech Lead
   Build Infrastructures and
   Deploy Cloud Native Applications
   Seamlessly | Automatically | Instantly
    @sqscale
    squarescale.com
   

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10. Full Remote | |
    

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11. https://wallpaperscraft.com/download/rings_rubber_background_heap_80332/3821x2560
    

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12. 
       
    

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13. idempotence
    application
    infrastructure
    

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14. https://whvn.cc/569648
    

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16. Packaging
    Immutabilité
    Idempotence
    

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17. https://www.nomadproject.io/
    

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18. Orchestrateur
    Lifecycle
    Rolling deploys
    Blue green
    Service, batch, system
    

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19. Drivers
    Docker, rkt
    JVM
    qemu
    plugins nomad >= 0.9
    

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20. Facile à déployer
    1 binaire
    linux / windows / mac
    autopilot
    

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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 {
    

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22. job "run-hook" {
    datacenters = ["dc1"]
    type = "batch"
    periodic {
    cron = "@hourly"
    prohibit_overlap = true
    }
    group "run-hook" {
    count = 1
    task "curl" {
    driver = "exec"
    

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23. job "notify-event" {
    type = "batch"
    parameterized {
    payload = "required"
    meta_required = ["email"]
    }
    group "notify" {
    task "notify" {
    driver = "docker"
    dispatch_payload {
    file = "config.json"
    

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26. https://www.consul.io/
    

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27. Service Discovery
    Service Con guration
    Service Segmentation
    

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28. Enregistre chaque service
    Health Checks (http, tcp, grpc, script)
    Découverte API / DNS (SRV)
    Service
    Discovery
    

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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
    

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30. intégration load balancers
    Trae k
    Fabio
    Envoy
    Service
    Discovery
    

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31. Distributed KV Store
    Watches
    Distributed Locks
    Service
    Con guration
    

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32. Service Access Graph
    Intentions
    Auto TLS
    encrypted communications
    authorization
    Service
    Segmentation
    

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33. Facile à
    déployer
    1 binaire
    linux / windows / mac
    autopilot
    

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36. 
       
    

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37. Déployer Consul & Nomad
    Con gurer (docker, dns, etc)
    Répétable
    
    

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38. https://www.packer.io/
    

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39. Construction d'images
    machine
    Installation /
    con guration
    

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40. AWS, Azure, GCP,
    DigitalOcean,
    OpenStack
    VirtualBox, VMware
    Docker, LXC
    ...
    

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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
    

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42. Infrastructure
    Services externes
    
    

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43. https://www.terraform.io/
    

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44. Infrastructure as Code
    

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45. Prévisualisation avant
    changement
    Gestion d'état
    

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46. Multi environments
    Modules
    Multi-providers
    

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47.  J'adore quand un plan se
    déroule sans accroc.
    - Hannibal
    

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48. 1. Construction de
    l'image système
    

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49. 2 Construction de
    l'infrastructure
    

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50. 3. Consul
    

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51. 4. Nomad
    

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52. 5. Docker
    Votre application
    

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53. Demo
    

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54. Deploying and Scaling Microservices with Docker and Kubernetes
    https://container.training/kube-selfpaced.yml.html
    

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55. +
    1 outil, 1 rôle
    ~ Consul
    Suite cohérente
    Documentation
    Facile à déployer
    

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56. +
    Développement actif
    Consul 1.4
    Nomad ~0.9
    Terraform ~0.12
    

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57. -
    kubernetes
    

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58. Hashistack
    Packer, Terraform, Consul, Nomad
    Orchestrer des applications Cloud Native avec simplicité
    Yves Brissaud
     @_crev_
    

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