Merge pull request #27 from truefoundry/add-script

add boostrap script

scripts/boostrap_cluster.sh

@@ -0,0 +1,180 @@
+#!/bin/bash
+
+# Function to display messages in green color
+print_green() {
+    echo "$(tput setaf 2)$1$(tput sgr0)"
+}
+
+# Function to display messages in yellow color
+print_yellow() {
+    echo "$(tput setaf 3)$1$(tput sgr0)"
+}
+
+# Function to display messages in red color
+print_red() {
+    echo "$(tput setaf 1)$1$(tput sgr0)"
+}
+
+# Function to check if Helm is installed
+check_helm_installed() {
+    if ! [ -x "$(command -v helm)" ]; then
+        print_red "Helm is not installed. Please install Helm first."
+        exit 1
+    fi
+}
+
+# Function to check if a Kubernetes cluster is reachable
+check_kubernetes_cluster() {
+    if ! kubectl cluster-info > /dev/null 2>&1; then
+        print_red "Kubernetes cluster is not reachable. Please ensure you have a working cluster."
+        exit 1
+    fi
+}
+
+# Function to check if a kubectl context is set
+check_kubectl_context() {
+    local current_context
+
+    current_context=$(kubectl config current-context)
+
+    if [ -z "$current_context" ]; then
+        print_yellow "No kubectl context is set."
+        read -rp "Please set the desired kubectl context and press Enter to continue: " _unused
+    else
+        print_yellow "Current kubectl context: $current_context"
+        read -rp "Is this the correct cluster you want to proceed with? (y/N): " confirm
+
+        if [[ "$confirm" != [Yy] && -z "$confirm" ]]; then
+            print_red "Aborting installation."
+            exit 1
+        fi
+    fi
+}
+
+# Function to check if the ArgoCD CRDs are installed
+check_argocd_crds_installed() {
+    if kubectl get crd | grep -q 'argoproj.io'; then
+        print_yellow "At least one ArgoCD CRD is already installed."
+        return 0
+    fi
+
+    return 1
+}
+
+check_istio_crds_installed() {
+    if kubectl get crd | grep -q 'istio.io'; then
+        print_yellow "At least one Istio CRD is already installed."
+        return 0
+    fi
+
+    return 1
+}
+
+# Function to check if Helm chart is already installed
+check_chart_installed() {
+    local chart_name=$1
+    local chart_namespace=$2
+
+    if helm list -n "$chart_namespace" | grep -q "$chart_name"; then
+        print_yellow "The '$chart_name' chart is already installed in the '$chart_namespace' namespace."
+        return 0
+    fi
+
+    return 1
+}
+
+# Function to install a Helm chart
+install_helm_chart() {
+    local chart_repo=$1
+    local chart_name=$2
+    local chart_namespace=$3
+    local chart_version=$4
+    local tenant_name=$5
+    local cluster_token=$6
+
+    print_green "Installing '$chart_name' chart in the '$chart_namespace' namespace..."
+
+    if [ "$chart_name" == "tfy-agent" ]; then
+        helm install "$chart_name" -n "$chart_namespace" --version "$chart_version" \
+        --set config.tenantName="$tenant_name" \
+        --set config.controlPlaneURL="https://$tenant_name.truefoundry.cloud" \
+        --set config.clusterToken="$cluster_token" \
+        truefoundry/"$chart_name" --create-namespace
+    else
+        helm install "$chart_name" -n "$chart_namespace" --version "$chart_version" "$chart_repo"/"$chart_name" --create-namespace
+    fi
+
+    print_green "The '$chart_name' chart has been successfully installed."
+}
+
+
+install_argocd_helm_chart() {
+    helm install argocd argo/argo-cd --version 5.16.13 \
+    --namespace argocd --create-namespace --wait \
+    --set applicationSet.enabled=false \
+    --set notifications.enabled=false \
+    --set dex.enabled=false \
+    --set server.extraArgs[0]="--insecure" \
+    --set server.extraArgs[1]='--application-namespaces="*"' \
+    --set controller.extraArgs[0]='--application-namespaces="*"'
+}
+
+# Function to guide the user through the installation process
+installation_guide() {
+    local tenant_name=$1
+    local cluster_token=$2
+    print_yellow "Starting TrueFoundry agent installation..."
+    echo
+
+    # Check if Helm is installed
+    check_helm_installed
+
+    # Check if Kubernetes cluster is reachable
+    check_kubernetes_cluster
+
+    # Check if kubectl context is set and confirm with the user
+    check_kubectl_context
+
+    # Guide the user through installing Argocd chart if not already installed
+    print_yellow "Let's start by installing Argocd..."
+
+    if check_argocd_crds_installed; then
+        # ArgoCD CRDs are already installed, skip the entire ArgoCD installation
+        print_yellow "Skipping argocd installation."
+    else
+        helm repo add argo https://argoproj.github.io/argo-helm
+        install_argocd_helm_chart
+        install_helm_chart "argo" "argo-rollouts" "argo-rollouts" "2.25.0"
+    fi
+
+    if check_istio_crds_installed; then
+        # Istio CRDs are already installed, skip the entire Istio installation
+        print_yellow "Skipping istio charts installation."
+    else
+        helm repo add istio https://istio-release.storage.googleapis.com/charts
+        install_helm_chart "istio" "base" "istio-system" "1.15.3"
+        install_helm_chart "istio" "istiod" "istio-system" "1.15.3"
+    fi
+
+    # Guide the user through installing Tfy-agent chart
+    print_yellow "Next, we'll install the tfy-agent chart..."
+
+    if check_chart_installed "tfy-agent" "tfy-agent"; then
+        print_yellow "The 'tfy-agent' chart is already installed. Skipping tfy-agent installation."
+    else
+        helm repo add truefoundry https://truefoundry.github.io/infra-charts/
+        install_helm_chart "truefoundry" "tfy-agent" "tfy-agent" "0.1.1" "$tenant_name" "$cluster_token"
+    fi
+
+    # Completion message
+    print_green "Congratulations! The installation process is complete."
+}
+
+# Start the installation guide with tenantName and clusterToken as arguments
+if [ $# -lt 2 ]; then
+    echo "Error: Insufficient arguments. Please provide the tenantName and clusterToken."
+    echo "Usage: $0 <tenantName> <clusterToken>"
+    exit 1
+fi
+
+installation_guide "$1" "$2"