harmony/demos/cncf-k8s-quebec-meetup-september-2025/slides.md

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Voici l'histoire de Petit Poisson

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https://tryrust.org

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Demo time

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Ansible❓

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- name: Download wikipedia
  hosts: localhost
  tasks:
    - name: Download a file
      ansible.builtin.get_url:
        url: "https:/wikipedia.org/"
        dest: "/tmp/ansible-test/wikipedia.html"
        mode: '0900'

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ansible-lint download.yml

Passed: 0 failure(s), 0 warning(s) on 1 files. Last profile that met the validation criteria was 'production'.

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git push

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Terraform❓❗

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provider "docker" {}

resource "docker_network" "invalid_network" {
  name = "my-invalid-network"

  ipam_config {
    subnet = "172.17.0.0/33"
  }
}

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terraform plan

Terraform used the selected providers to generate the following execution plan.
Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # docker_network.invalid_network will be created
  + resource "docker_network" "invalid_network" {
      + driver      = (known after apply)
      + id          = (known after apply)
      + internal    = (known after apply)
      + ipam_driver = "default"
      + name        = "my-invalid-network"
      + options     = (known after apply)
      + scope       = (known after apply)

      + ipam_config {
          + subnet   = "172.17.0.0/33"
            # (2 unchanged attributes hidden)
        }
    }

Plan: 1 to add, 0 to change, 0 to destroy.

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✅

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terraform apply

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Plan: 1 to add, 0 to change, 0 to destroy.

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes

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docker_network.invalid_network: Creating...
╷
│ Error: Unable to create network: Error response from daemon: invalid network config:
│ invalid subnet 172.17.0.0/33: invalid CIDR block notation
│
│   with docker_network.invalid_network,
│   on main.tf line 11, in resource "docker_network" "invalid_network":
│   11: resource "docker_network" "invalid_network" {
│
╵

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Harmony❓❗

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Demo time

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🎼

Harmony : https://git.nationtech.io/nationtech/harmony

LinkedIn : https://www.linkedin.com/in/jean-gabriel-gill-couture/

Courriel : jg@nationtech.io