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eff8a30757
...
b9f038548c
13 changed files with 21 additions and 219 deletions
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@ -1,22 +0,0 @@
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apiVersion: argoproj.io/v1alpha1
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kind: Application
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metadata:
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name: podinfo
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namespace: argocd
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annotations:
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argocd.argoproj.io/sync-wave: "10"
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spec:
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project: workshop
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source:
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repoURL: https://github.com/shautvast/ops-demo
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targetRevision: HEAD
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path: manifests/apps/podinfo
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destination:
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server: https://kubernetes.default.svc
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namespace: podinfo
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syncPolicy:
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automated:
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prune: true
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selfHeal: true
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syncOptions:
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- CreateNamespace=true
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@ -1,28 +0,0 @@
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apiVersion: argoproj.io/v1alpha1
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kind: Application
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metadata:
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name: ingress-nginx
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namespace: argocd
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annotations:
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argocd.argoproj.io/sync-wave: "3"
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spec:
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project: workshop
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sources:
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- repoURL: https://kubernetes.github.io/ingress-nginx
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chart: ingress-nginx
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targetRevision: "4.12.0"
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helm:
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valueFiles:
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- $values/manifests/networking/ingress-nginx/values.yaml
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- repoURL: https://github.com/shautvast/ops-demo
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targetRevision: HEAD
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ref: values
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destination:
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server: https://kubernetes.default.svc
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namespace: ingress-nginx
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syncPolicy:
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automated:
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prune: true
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selfHeal: true
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syncOptions:
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- CreateNamespace=true
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@ -1,22 +0,0 @@
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apiVersion: argoproj.io/v1alpha1
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kind: Application
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metadata:
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name: metallb-config
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namespace: argocd
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annotations:
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argocd.argoproj.io/sync-wave: "2"
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spec:
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project: workshop
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source:
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repoURL: https://github.com/shautvast/ops-demo
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targetRevision: HEAD
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path: manifests/networking/metallb
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directory:
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include: "metallb-config.yaml"
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destination:
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server: https://kubernetes.default.svc
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namespace: metallb-system
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syncPolicy:
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automated:
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prune: true
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selfHeal: true
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@ -1,34 +0,0 @@
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apiVersion: argoproj.io/v1alpha1
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kind: Application
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metadata:
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name: metallb
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namespace: argocd
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annotations:
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argocd.argoproj.io/sync-wave: "1"
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spec:
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project: workshop
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ignoreDifferences:
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- group: apiextensions.k8s.io
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kind: CustomResourceDefinition
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jsonPointers:
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- /spec/conversion/webhook/clientConfig/caBundle
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sources:
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- repoURL: https://metallb.github.io/metallb
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chart: metallb
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targetRevision: "0.14.9"
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helm:
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valueFiles:
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- $values/manifests/networking/metallb/values.yaml
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- repoURL: https://github.com/shautvast/ops-demo
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targetRevision: HEAD
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ref: values
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destination:
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server: https://kubernetes.default.svc
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namespace: metallb-system
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syncPolicy:
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automated:
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prune: true
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selfHeal: true
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syncOptions:
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- CreateNamespace=true
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- ServerSideApply=true
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@ -49,7 +49,6 @@ Maak de volgende bestanden aan:
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> [!TIP]
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> **Wat dit doet**
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>
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> - Dit is de Helm-values file voor MetalLB.
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> - In deze workshop-VM kun je hem leeg laten; de standaard chart-values zijn genoeg.
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@ -61,7 +60,6 @@ Maak de volgende bestanden aan:
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> [!TIP]
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> **Wat dit doet**
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>
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> - `IPAddressPool` bepaalt uit welke range MetalLB IP's mag uitdelen.
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> - `L2Advertisement` maakt die pool zichtbaar op je host-only netwerk via ARP.
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> - Daardoor kan je laptop services op dat IP direct bereiken.
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@ -90,7 +88,6 @@ spec:
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> [!TIP]
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> **Wat dit doet**
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>
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> - Installeert MetalLB via ArgoCD als aparte `Application`.
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> - De chart komt van de upstream Helm repo; jouw repo levert de values via `$values/...`.
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> - `sync-wave: "1"` zorgt dat MetalLB eerst klaar is.
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@ -137,7 +134,6 @@ spec:
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> [!TIP]
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> **Wat dit doet**
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>
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> - Past jouw IP-pool/L2-config toe als losse ArgoCD `Application`.
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> - Die split houdt "installatie" en "runtime-config" van MetalLB uit elkaar.
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> - `sync-wave: "2"` laat dit pas lopen nadat MetalLB zelf staat.
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@ -175,7 +171,6 @@ spec:
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> [!TIP]
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> **Wat dit doet**
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>
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> - Zet ingress-nginx neer met een `LoadBalancer` service.
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> - Dat service-IP wordt vast op `192.168.56.200` gezet.
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> - Zo kun je stabiele hostnames gebruiken met `nip.io`.
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@ -198,7 +193,6 @@ controller:
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> [!TIP]
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> **Wat dit doet**
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>
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> - Installeert ingress-nginx via ArgoCD.
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> - Ook hier: chart upstream, values uit jouw repo.
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> - `sync-wave: "3"` laat ingress pas starten nadat MetalLB + config klaar zijn.
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@ -220,7 +214,7 @@ spec:
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helm:
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valueFiles:
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- $values/manifests/networking/ingress-nginx/values.yaml
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- repoURL: https://github.com/shautvast/ops-demo
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- repoURL: JOUW_FORK_URL
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targetRevision: HEAD
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ref: values
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destination:
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@ -234,12 +228,11 @@ spec:
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- CreateNamespace=true
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```
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## kubectl -n argocd patch application root --type merge -p '{"metadata":{"annotations":{"argocd.argoproj.io/refresh":"hard"}}}'
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---
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### 3. Alles committen en pushen
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> **HOST**
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>
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> ```bash
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> git add apps/networking/ manifests/networking/
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> git commit -m "feat: MetalLB + Ingress-Nginx"
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@ -249,7 +242,6 @@ spec:
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Wacht tot beide applications Synced zijn, en controleer dan:
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> **VM**
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>
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> ```bash
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> kubectl get svc -n ingress-nginx
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> # NAME TYPE EXTERNAL-IP PORT(S)
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@ -259,7 +251,6 @@ Wacht tot beide applications Synced zijn, en controleer dan:
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Vanuit je laptop:
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> **HOST**
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>
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> ```bash
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> curl http://192.168.56.200
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> # 404 van Nginx — klopt, nog geen Ingress-regel
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@ -277,7 +268,6 @@ Vanuit je laptop:
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> [!TIP]
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> **Wat dit doet**
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>
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> - Definieert de HTTP-route voor podinfo.
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> - `ingressClassName: nginx` bindt deze Ingress aan ingress-nginx.
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> - De hostnaam met `nip.io` wijst naar jouw MetalLB IP.
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@ -304,7 +294,6 @@ spec:
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```
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> **HOST**
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>
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> ```bash
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> git add manifests/apps/podinfo/ingress.yaml
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> git commit -m "feat: voeg podinfo Ingress toe"
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@ -321,7 +310,6 @@ Pas `manifests/argocd/values.yaml` aan. Zoek het uitgecommentarieerde ingress-bl
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> [!TIP]
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> **Wat dit doet**
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>
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> - Schakelt ingress in voor de ArgoCD server zelf.
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> - Daarna kun je ArgoCD via browser-URL gebruiken in plaats van port-forward.
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> - De `hostname` moet matchen met het IP dat ingress-nginx exposeert.
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@ -337,7 +325,6 @@ ingress:
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```
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> **HOST**
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>
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> ```bash
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> git add manifests/argocd/values.yaml
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> git commit -m "feat: schakel ArgoCD ingress in"
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@ -361,14 +348,11 @@ speaker:
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operator: Exists
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effect: NoSchedule
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```
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> [!TIP]
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> **Wat dit doet**
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>
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> - `tolerations` zijn alleen nodig als je cluster control-plane `NoSchedule` taints gebruikt.
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>
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> **Termen uitgelegd**
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>
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>- `speaker`: de MetalLB component die op nodes draait en op het netwerk "antwoordt" voor een toegewezen
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> LoadBalancer-IP (in L2-modus via ARP).
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> - `tolerations`: een Kubernetes-mechanisme waarmee een pod toch op een node mag landen die een `taint` heeft.
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@ -381,7 +365,7 @@ Commit en push daarna opnieuw, zodat ArgoCD MetalLB met deze values heruitrolt.
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## Verwacht resultaat
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| URL | App |
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| ------------------------------------ | -------------- |
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|--------------------------------------|----------------|
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| http://podinfo.192.168.56.200.nip.io | podinfo v6.6.2 |
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| http://argocd.192.168.56.200.nip.io | ArgoCD UI |
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@ -392,7 +376,7 @@ Beide bereikbaar vanaf je laptop zonder port-forward.
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## Probleemoplossing
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| Symptoom | Oplossing |
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| ------------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
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|---------------------------------------|--------------------------------------------------------------------------------------------------------------------|
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| `EXTERNAL-IP` blijft `<pending>` | MetalLB is nog niet klaar — check `kubectl get pods -n metallb-system` |
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| curl naar 192.168.56.200 time-out | VirtualBox host-only adapter niet geconfigureerd — zie vm-setup.md |
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| nip.io resolvet niet | Tijdelijk DNS-probleem, probeer opnieuw of voeg toe aan `/etc/hosts` |
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@ -1,34 +0,0 @@
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: podinfo
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namespace: podinfo
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: podinfo
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template:
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metadata:
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labels:
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app: podinfo
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spec:
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containers:
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- name: podinfo
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image: ghcr.io/stefanprodan/podinfo:6.6.2
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ports:
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- containerPort: 9898
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name: http
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env:
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- name: PODINFO_UI_COLOR
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value: "#2ecc71"
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readinessProbe:
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httpGet:
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path: /readyz
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port: 9898
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initialDelaySeconds: 5
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periodSeconds: 10
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resources:
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requests:
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cpu: 50m
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memory: 64Mi
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@ -1,4 +0,0 @@
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apiVersion: v1
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kind: Namespace
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metadata:
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name: podinfo
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@ -1,12 +0,0 @@
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apiVersion: v1
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kind: Service
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metadata:
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name: podinfo
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namespace: podinfo
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spec:
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selector:
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app: podinfo
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ports:
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- port: 80
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targetPort: 9898
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name: http
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@ -12,13 +12,14 @@ server:
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- --insecure
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# ── Exercise 03: uncomment this block after Ingress-Nginx is deployed ──────
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ingress:
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enabled: true
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ingressClassName: nginx
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hostname: argocd.192.168.56.200.nip.io
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annotations:
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nginx.ingress.kubernetes.io/ssl-passthrough: "false"
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nginx.ingress.kubernetes.io/backend-protocol: "HTTP"
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# ingress:
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# enabled: true
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# ingressClassName: nginx
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# hostname: argocd.192.168.56.200.nip.io
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# annotations:
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# nginx.ingress.kubernetes.io/ssl-passthrough: "false"
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# nginx.ingress.kubernetes.io/backend-protocol: "HTTP"
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# ──────────────────────────────────────────────────────────────────────────
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configs:
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params:
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|
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@ -1,8 +0,0 @@
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apiVersion: metallb.io/v1beta1
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kind: L2Advertisement
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metadata:
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name: workshop-l2
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namespace: metallb-system
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spec:
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ipAddressPools:
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- workshop-pool
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@ -1,11 +0,0 @@
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controller:
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ingressClassResource:
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name: nginx
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default: true
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service:
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type: LoadBalancer
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loadBalancerIP: "192.168.56.200"
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resources:
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requests:
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cpu: 100m
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memory: 128Mi
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@ -1,8 +0,0 @@
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apiVersion: metallb.io/v1beta1
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kind: IPAddressPool
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metadata:
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||||
name: workshop-pool
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namespace: metallb-system
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spec:
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addresses:
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||||
- 192.168.56.200-192.168.56.220
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