[improvement] Add new flavors (#325)

* Add new flavors

Author: amold1

hack/generate-flavors.sh

@@ -4,17 +4,35 @@ set -euo pipefail
 
 REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 FLAVORS_DIR="${REPO_ROOT}/templates/flavors"
+SUPPORTED_DISTROS=(
+    "rke2"
+    "k3s"
+    "kubeadm"
+)
+SUPPORTED_CLUSTERCLASSES=(
+    "clusterclass-kubeadm"
+)
 
-for name in $(find "${FLAVORS_DIR}/"* -maxdepth 0 -type d -print0 | xargs -0 -I {} basename {} | grep -v base | grep -v clusterclass-base ); do
+for clusterclass in ${SUPPORTED_CLUSTERCLASSES[@]}; do
     # clusterctl expects clusterclass not have the "cluster-template" prefix
     # except for the actual cluster template using the clusterclass
-    if [[ "$name" == clusterclass* ]]; then
-        kustomize build "${FLAVORS_DIR}/${name}" > "${REPO_ROOT}/templates/${name}.yaml"
-	cp "${FLAVORS_DIR}/${name}/cluster-template.yaml" "${REPO_ROOT}/templates/cluster-template-${name}.yaml"
-    else
-        kustomize build "${FLAVORS_DIR}/${name}" > "${REPO_ROOT}/templates/cluster-template-${name}.yaml"
-    fi
+    echo "****** Generating clusterclass-${clusterclass} flavor ******"
+    kustomize build "${FLAVORS_DIR}/${clusterclass}" > "${REPO_ROOT}/templates/${clusterclass}.yaml"
+    cp "${FLAVORS_DIR}/${clusterclass}/cluster-template.yaml" "${REPO_ROOT}/templates/cluster-template-${clusterclass}.yaml"
+done
+
+
+for distro in ${SUPPORTED_DISTROS[@]}; do
+    for name in $(find "${FLAVORS_DIR}/${distro}/"* -maxdepth 0 -type d -print0 | xargs -0 -I {} basename {}); do
+        if [[ ${name} == "default" ]]; then
+            echo "****** Generating ${distro} flavor ******"
+            kustomize build "${FLAVORS_DIR}/${distro}/${name}" > "${REPO_ROOT}/templates/cluster-template-${distro}.yaml"
+        else
+            echo "****** Generating ${distro}-${name} flavor ******"
+            kustomize build "${FLAVORS_DIR}/${distro}/${name}" > "${REPO_ROOT}/templates/cluster-template-${distro}-${name}.yaml"
+        fi
+    done
 done
 
 # move the default template to the default file expected by clusterctl
-mv "${REPO_ROOT}/templates/cluster-template-default.yaml" "${REPO_ROOT}/templates/cluster-template.yaml"
+mv "${REPO_ROOT}/templates/cluster-template-kubeadm.yaml" "${REPO_ROOT}/templates/cluster-template.yaml"

templates/addons/cilium-network-policies/ciliumNetworkPolicies.yaml

@@ -35,8 +35,6 @@ data:
           toPorts:
             - ports:
                 - port: "6443"
-                - port: "2379"
-                - port: "2380"
 ---
 apiVersion: addons.cluster.x-k8s.io/v1beta1
 kind: ClusterResourceSet

templates/flavors/README.md

@@ -4,7 +4,7 @@ resources:
   - clusterClass.yaml
   - kubeadmControlPlaneTemplate.yaml
   - linodeClusterTemplate.yaml
-  - ../default
+  - ../kubeadm/default
 
 transformers:
   - replacementTransformer.yaml
@@ -47,4 +47,4 @@ patches:
     patch: |-
       kind: KubeadmConfigTemplate
       metadata:
-        name: kubeadm-worker
+        name: kubeadm-worker

templates/flavors/clusterclass-kubeadm/kustomization.yaml

@@ -1,20 +1,11 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
+
 resources:
   - ../default
-  - ../../addons/cluster-autoscaler
+  - ../../../addons/cluster-autoscaler
+
 patches:
-  - target:
-      group: cluster.x-k8s.io
-      version: v1beta1
-      kind: Cluster
-    patch: |-
-      apiVersion: cluster.x-k8s.io/v1beta1
-      kind: Cluster
-      metadata:
-        name: ${CLUSTER_NAME}
-        labels:
-          cluster-autoscaler: "true"
   - target:
       group: cluster.x-k8s.io
       version: v1beta1
@@ -27,3 +18,14 @@ patches:
         annotations:
           cluster.x-k8s.io/cluster-api-autoscaler-node-group-min-size: ${WORKER_MACHINE_MIN:-"1"}
           cluster.x-k8s.io/cluster-api-autoscaler-node-group-max-size: ${WORKER_MACHINE_MAX:-"10"}
+  - target:
+      group: cluster.x-k8s.io
+      version: v1beta1
+      kind: Cluster
+    patch: |-
+      apiVersion: cluster.x-k8s.io/v1beta1
+      kind: Cluster
+      metadata:
+        name: ${CLUSTER_NAME}
+        labels:
+          cluster-autoscaler: "true"

templates/flavors/default/kustomization.yaml

@@ -100,6 +100,7 @@ spec:
       nodeName: '{{ ds.meta_data.label }}'
     preK3sCommands:
       - |
+        mkdir -p /etc/rancher/k3s/config.yaml.d/
         echo "node-ip: $(ip a s eth1 |grep 'inet ' |cut -d' ' -f6|cut -d/ -f1)" >> /etc/rancher/k3s/config.yaml.d/capi-config.yaml
       - sed -i '/swap/d' /etc/fstab
       - swapoff -a

templates/flavors/k3s/ciliumNetworkPolicies.yaml

@@ -1,11 +1,11 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-  - ../base
+  - ../../../infra
   - k3sControlPlane.yaml
   - k3sConfigTemplate.yaml
-  - ciliumNetworkPolicies.yaml
   - secret.yaml
+  - ../../../addons/cilium-network-policies
 patches:
   - target:
       group: cluster.x-k8s.io