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local_infra

README.md

Ambiente local

Este diretório possui Linux Ubuntu 20.04 LTS, onde configura um MicroK8s. A imagem abaixo mostra a arquitetura proposta, onde é instalado o Kong e a aplicação Flask de exemplo.

Loca infrastructure design

Requisitos

  • Vagrant (versão 2.2.19)
    • Como instalar? Execute sudo apt install vagrant
  • VirtualBox (versão 6.1.50_Ubuntu r16103)
    • Como instalar? Execute sudo apt-get install virtualbox-6.1
  • Ansible
    • Como instalar? Execute sudo apt-get install ansible

Execute o script abaixo para instalar todos os requisitos:

$ make requirements 

******************** INSTALLING SOFTWARE REQUIREMENTS **********************************
if [ -x /usr/bin/apt-get ]; then  xargs -a requirements.txt sudo apt-get install -y; fi
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
ansible is already the newest version (2.10.7+merged+base+2.10.8+dfsg-1).
vagrant is already the newest version (2.2.19+dfsg-1ubuntu1).
virtualbox is already the newest version (6.1.50-dfsg-1~ubuntu1.22.04.1).
The following packages were automatically installed and are no longer required:
  chromium-codecs-ffmpeg-extra gstreamer1.0-vaapi guile-2.2-libs libflashrom1 libftdi1-2 libgc1
  libgnome-games-support-1-3 libgnome-games-support-common libgstreamer-plugins-bad1.0-0 libllvm13
  libminizip1 libqqwing2v5 libva-wayland2
Use 'sudo apt autoremove' to remove them.
0 to upgrade, 0 to newly install, 0 to remove and 59 not to upgrade.

Instalando e usando a VM

Para criação da VM e obtenção de acesso, use o comando abaixo:

$ make

******************** DESTROYING THE VIRTUAL MACHINE **********************************
vagrant destroy -f
==> default: Destroying VM and associated drives...

vagrant status
Current machine states:

default                   not created (virtualbox)

The environment has not yet been created. Run `vagrant up` to
create the environment. If a machine is not created, only the
default provider will be shown. So if a provider is not listed,
then the machine is not created for that environment.


******************** BUILDING THE VIRTUAL MACHINE **********************************
vagrant provision
==> default: VM not created. Moving on...

vagrant status
Current machine states:

default                   not created (virtualbox)

The environment has not yet been created. Run `vagrant up` to
create the environment. If a machine is not created, only the
default provider will be shown. So if a provider is not listed,
then the machine is not created for that environment.


******************** RUNNING THE VIRTUAL MACHINE **********************************
vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Importing base box 'ubuntu/focal64'...
==> default: Matching MAC address for NAT networking...
==> default: Checking if box 'ubuntu/focal64' version '20240306.0.0' is up to date...
==> default: A newer version of the box 'ubuntu/focal64' for provider 'virtualbox' is
==> default: available! You currently have version '20240306.0.0'. The latest is version
==> default: '20240306.0.1'. Run `vagrant box update` to update.
==> default: Setting the name of the VM: local_infra_default_1711935269628_61595
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: hostonly
==> default: Forwarding ports...
    default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Running 'pre-boot' VM customizations...
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: 
    default: Vagrant insecure key detected. Vagrant will automatically replace
    default: this with a newly generated keypair for better security.
    default: 
    default: Inserting generated public key within guest...
    default: Removing insecure key from the guest if it's present...
    default: Key inserted! Disconnecting and reconnecting using new SSH key...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
==> default: Configuring and enabling network interfaces...
==> default: Mounting shared folders...
    default: /vagrant => /home/samuel/Music/desafio-devops/local_infra
==> default: Running provisioner: file...
    default: ./k8s => /home/vagrant/k8s
==> default: Running provisioner: file...
    default: ./kong => /home/vagrant/kong
==> default: Running provisioner: file...
    default: ./ansible => /home/vagrant/ansible
==> default: Running provisioner: ansible...
    default: Running ansible-playbook...

PLAY [localhost] ***************************************************************

TASK [Gathering Facts] *********************************************************
ok: [localhost]

TASK [INSTALL THE COMMON REQUIREMENTS] *****************************************

TASK [common : Update package cache] *******************************************
changed: [localhost]

TASK [common : Upgrade all packages] *******************************************
ok: [localhost]

TASK [common : Install prerequisites for MicroK8s installation] ****************
ok: [localhost] => (item=curl)
ok: [localhost] => (item=iptables)
ok: [localhost] => (item=snapd)

TASK [CREATE AND CONFIGURE A MICROK8S CLUSTER] *********************************

TASK [microk8s : Install MicroK8s using snap] **********************************
changed: [localhost]

TASK [microk8s : Check MicroK8s status] ****************************************
changed: [localhost]

TASK [microk8s : Create .kube directory] ***************************************
ok: [localhost]

TASK [microk8s : Checking if the group exists] *********************************
ok: [localhost]

TASK [microk8s : Add Ansible user to microk8s group] ***************************
ok: [localhost]

TASK [microk8s : Change ownership to Ansible user (and group)] *****************
ok: [localhost]

TASK [microk8s : Add kubectl and helm aliases] *********************************
ok: [localhost] => (item={'alias': 'kubectl', 'command': 'microk8s kubectl'})
ok: [localhost] => (item={'alias': 'helm', 'command': 'microk8s helm'})

TASK [microk8s : Enable add-ons] ***********************************************
changed: [localhost]

TASK [microk8s : Instal Metallb] ***********************************************
changed: [localhost]

TASK [ENABLE KUBERNETES CLUSTER MONITORING] ************************************

TASK [monitoring : Enable MicroK8s monitoring add-ons (metrics-server, observability, and dashboard)] ***
changed: [localhost]

TASK [INSTALL THE KONG INTO THE MICROK8S] **************************************

TASK [kong : Creates a directory for the Gateway CRD configuration file] *******
ok: [localhost]

TASK [kong : Copy the Gateway CRD configuration file] **************************
ok: [localhost]

TASK [kong : Install Kubernetes Gateway API] ***********************************
changed: [localhost]

TASK [kong : Install Kubernetes Gateway CRD] ***********************************
changed: [localhost]

TASK [kong : Add Kong helm repo] ***********************************************
changed: [localhost]

TASK [kong : Update Helm repo] *************************************************
changed: [localhost]

TASK [kong : Check if the Kong namespace exists] *******************************
changed: [localhost]

TASK [kong : Install KIC Helm] *************************************************
skipping: [localhost]

TASK [INSTALL ARGO CD INTO THE MICROK8S] ***************************************

TASK [argocd : Creates a directory for the Apllication.yaml Kubernetes configuration file] ***
ok: [localhost]

TASK [argocd : Copy the Gateway CRD configuration file] ************************
ok: [localhost]

TASK [argocd : Create namespace argocd] ****************************************
fatal: [localhost]: FAILED! => {"changed": true, "cmd": ["microk8s.kubectl", "create", "namespace", "argocd"], "delta": "0:00:02.898286", "end": "2024-04-01 08:38:06.886221", "msg": "non-zero return code", "rc": 1, "start": "2024-04-01 08:38:03.987935", "stderr": "Error from server (AlreadyExists): namespaces \"argocd\" already exists", "stderr_lines": ["Error from server (AlreadyExists): namespaces \"argocd\" already exists"], "stdout": "", "stdout_lines": []}
...ignoring

TASK [argocd : Deploy Argo CD into MicroK8s] ***********************************
changed: [localhost]

TASK [argocd : Deploy Argo CD Flask Application into the MicroK8s] *************
changed: [localhost]

PLAY RECAP *********************************************************************
localhost                  : ok=26   changed=14   unreachable=0    failed=0    skipped=1    rescued=0    ignored=1  


vagrant status
Current machine states:

default                   running (virtualbox)

The VM is running. To stop this VM, you can run `vagrant halt` to
shut it down forcefully, or you can run `vagrant suspend` to simply
suspend the virtual machine. In either case, to restart it again,
simply run `vagrant up`.

vagrant ssh
Welcome to Ubuntu 20.04.6 LTS (GNU/Linux 5.4.0-173-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/pro

 System information disabled due to load higher than 2.0


Expanded Security Maintenance for Applications is not enabled.

0 updates can be applied immediately.

Enable ESM Apps to receive additional future security updates.
See https://ubuntu.com/esm or run: sudo pro status

New release '22.04.3 LTS' available.
Run 'do-release-upgrade' to upgrade to it.


*** System restart required ***
Last login: Mon Apr  1 01:40:04 2024 from 192.168.56.1

Para parar a VM, execute:

$  vagrant halt
==> default: Attempting graceful shutdown of VM...

Por fim, deve-se executar o seguinte comando para destruir a VM:

$ vagrant destroy -f
==> default: Destroying VM and associated drives...