Practica final
This commit is contained in:
Guillem Hernandez Sola
88
boxes/debian/README.md
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boxes/debian/README.md
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# Debian Vagrant — Descripció i ús
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Aquest directori inclou una infraestructura Vagrant per muntar màquines Debian que suporten un petit clúster k3s d'estudi.
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Contingut
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- `Vagrantfile` — Fitxer principal per crear les màquines virtuals (controlador i agents).
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- `.vagrant/` — Estat local de Vagrant (no versionar).
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- `shared/` — Conté fitxers compartits entre host i les VM:
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- `k3s.yaml` — Fitxer kubeconfig generat pel clúster k3s dins les VM.
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- `token` — Token d'unió per a workers (k3s join token).
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Prerequisits
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- Instal·lar `Vagrant` i un provider (ex. VirtualBox). Si fas servir `libvirt` o un altre provider, configura'l prèviament.
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- Xarxa i permisos per crear màquines virtuals.
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Com arrencar el lab
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1. Situa't a la carpeta `debian`:
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```bash
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cd debian
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```
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2. Inicia totes les màquines:
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```bash
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vagrant up
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```
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3. Opcional — iniciar només una màquina concreta (ex.: `server`):
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```bash
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vagrant up server
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```
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Accedir al kubeconfig
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- Un cop el clúster està operatiu, trobaràs el `kubeconfig` generat a `shared/k3s.yaml`. Per usar-lo localment, pots fer:
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```bash
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export KUBECONFIG=$PWD/shared/k3s.yaml
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kubectl get nodes
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```
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o copiar-lo al teu fitxer de kubeconfig:
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```bash
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cp shared/k3s.yaml ~/.kube/config
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```
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Ús del token
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- El fitxer `shared/token` conté normalment el token per unir workers al clúster. No el comparteixis públicament.
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Neteja i aturada
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- Aturar màquines:
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```bash
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vagrant halt
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```
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- Destruir màquines i alliberar recursos:
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```bash
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vagrant destroy -f
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```
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Consells i consideracions
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- No versionis la carpeta `.vagrant` ni fitxers sensibles (secrets, tokens) al repositori.
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- Si utilitzes un provider diferent de VirtualBox (ex. libvirt), assegura't d'haver instal·lat i configurat el plugin de Vagrant corresponent.
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- Si el `kubeconfig` mostra nodes en estat NotReady, comprova que les VM tenen connectivitat i que k3s està en execució (`vagrant ssh server` i `sudo systemctl status k3s`).
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Vols que:
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- faci un `git commit` d'aquest `README.md`?
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- o que generi instruccions més detallades per personalitzar la topologia (nombre d'agents, recursos, etc.)?
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# Suport
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Aquest tutorial és publicat al domini públic per [Agile611](http://www.agile611.com/) sota la llicència Creative Commons Attribution-NonCommercial 4.0 International.
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[](https://creativecommons.org/licenses/by-nc/4.0/)
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Aquest fitxer README va ser escrit originalment per [Guillem Hernández Sola](https://www.linkedin.com/in/guillemhs/) i també és publicat al domini públic.
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Si us plau, contacta amb Agile611 per a més detalls.
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* [Agile611](http://www.agile611.com/)
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* Laureà Miró 309
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* 08950 Esplugues de Llobregat (Barcelona)
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[](http://www.agile611.com/)
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53
boxes/debian/Vagrantfile
vendored
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boxes/debian/Vagrantfile
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server_ip = "192.168.33.10"
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agents = { "agent1" => "192.168.33.11",
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"agent2" => "192.168.33.12",
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"agent3" => "192.168.33.13" }
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server_script = <<-SHELL
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export INSTALL_K3S_EXEC="--bind-address=#{server_ip} --node-external-ip=#{server_ip} --flannel-iface=eth1"
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curl -sfL https://get.k3s.io | sh -
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echo "Sleeping for 10 seconds to wait for k3s to start"
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sleep 10
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sudo chown vagrant:vagrant /etc/rancher/k3s/k3s.yaml
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export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
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cp /var/lib/rancher/k3s/server/token /vagrant_shared
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cp /etc/rancher/k3s/k3s.yaml /vagrant_shared
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sleep 10
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kubectl taint nodes server node-role.kubernetes.io/master=true:NoSchedule
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SHELL
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agent_script = <<-SHELL
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export K3S_TOKEN_FILE=/vagrant_shared/token
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export K3S_URL=https://#{server_ip}:6443
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export INSTALL_K3S_EXEC="--flannel-iface=eth1"
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curl -sfL https://get.k3s.io | sh -
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SHELL
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Vagrant.configure("2") do |config|
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config.vm.box = "bento/debian-13"
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config.vm.define "server", primary: true do |server|
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server.vm.network "private_network", ip: server_ip
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server.vm.synced_folder "./shared", "/vagrant_shared"
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server.vm.hostname = "server"
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server.vm.provider "virtualbox" do |vb|
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vb.memory = "2048"
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vb.cpus = "2"
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end
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server.vm.provision "shell", inline: server_script
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end
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agents.each do |agent_name, agent_ip|
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config.vm.define agent_name do |agent|
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agent.vm.network "private_network", ip: agent_ip
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agent.vm.synced_folder "./shared", "/vagrant_shared"
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agent.vm.hostname = agent_name
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agent.vm.provider "virtualbox" do |vb|
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vb.memory = "1024"
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vb.cpus = "1"
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end
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agent.vm.provision "shell", inline: agent_script
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end
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end
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end
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0
boxes/debian/shared/.gitkeep
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0
boxes/debian/shared/.gitkeep
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18
boxes/debian/shared/k3s.yaml
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boxes/debian/shared/k3s.yaml
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apiVersion: v1
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clusters:
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- cluster:
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certificate-authority-data: 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server: https://192.168.33.10:6443
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name: default
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contexts:
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- context:
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cluster: default
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user: default
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name: default
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current-context: default
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kind: Config
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users:
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- name: default
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user:
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client-certificate-data: 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client-key-data: LS0tLS1CRUdJTiBFQyBQUklWQVRFIEtFWS0tLS0tCk1IY0NBUUVFSUxnRzlEd21neFg0Q0pLSDNRUXlsZkp2b01TS0kxYTN6YzRSUEdYUHBPQmxvQW9HQ0NxR1NNNDkKQXdFSG9VUURRZ0FFRjhxcjU5THllZ1l4WllpK3BMQ0VBa1l2SVo0akkyUHZwTFgyaUxOdWN3Nlo1WVpKZ3VpNQpiNHNQS2xkY25jOVNLNi9zRkpmYys4T3JVVnMrWVdYZWNnPT0KLS0tLS1FTkQgRUMgUFJJVkFURSBLRVktLS0tLQo=
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1
boxes/debian/shared/token
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1
boxes/debian/shared/token
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K10f81f3b04b499101f26c80ff7a104605967fd6b9eee3cbd3677e4bc8b3d2a00d4::server:bd6aec9d68aadcf32bd806048147e267
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