percona · shrutipradhan-percona · Aug 3, 2026 · Aug 4, 2026 · coderabbitai · Aug 4, 2026
@@ -0,0 +1,221 @@
+#!/bin/bash
+
+set -euo pipefail
+
+#############################################
+# Configuration
+#############################################
+
+CLUSTER_LABEL="pmm-ha-shruti-install-ha-3aug"
+REGION="ap-west"              # Change if required
+K8S_VERSION="1.36"
+NODE_TYPE="g6-standard-4"
+NODE_COUNT=7
+PMM_PW=$1 #PMM password
-PMM_PW=$1 #PMM password
+if [[ $# -ne 1 || -z "$1" ]]; then
+    echo "Usage: $0 <pmm-password>" >&2
+    exit 2
+fi
+PMM_PW="$1"
-PMM_PW=$1 #PMM password
+if [[ $# -ne 1 || -z "$1" ]]; then
+    echo "Usage: $0 <pmm-password>" >&2
+    exit 2
+fi
+PMM_PW="$1"
+#KUBECONFIG_FILE="$HOME/.kube/pmm-ha-lke-config"
+
+#############################################
+# Prerequisite Checks
+#############################################
+
+echo "Checking prerequisites..."
+
+for cmd in linode-cli jq kubectl base64; do
+    if ! command -v "$cmd" >/dev/null 2>&1; then
+        echo "ERROR: '$cmd' is not installed."
+        exit 1
+    fi
+done
-for cmd in linode-cli jq kubectl base64; do
-    if ! command -v "$cmd" >/dev/null 2>&1; then
-        echo "ERROR: '$cmd' is not installed."
-        exit 1
-    fi
-done
+for cmd in linode-cli jq kubectl base64 helm; do
+    if ! command -v "$cmd" >/dev/null 2>&1; then
+        echo "ERROR: '$cmd' is not installed."
+        exit 1
+    fi
+done
-for cmd in linode-cli jq kubectl base64; do
-    if ! command -v "$cmd" >/dev/null 2>&1; then
-        echo "ERROR: '$cmd' is not installed."
-        exit 1
-    fi
-done
+for cmd in linode-cli jq kubectl base64 helm; do
+    if ! command -v "$cmd" >/dev/null 2>&1; then
+        echo "ERROR: '$cmd' is not installed."
+        exit 1
+    fi
+done
+
+echo "All required tools found."
+echo
+
+#############################################
+# Create Cluster
+#############################################
+echo "Creating Kubernetes cluster..."
+
+linode-cli lke cluster-create \
+    --label "$CLUSTER_LABEL" \
+    --region "$REGION" \
+    --k8s_version "$K8S_VERSION" \
+    --node_pools.type "$NODE_TYPE" \
+    --node_pools.count "$NODE_COUNT"
+
+echo
+echo "Cluster creation request submitted."
+echo
+
+#############################################
+# Retrieve Cluster ID
+#############################################
+
+echo "It takes some time to Create cluster and add nodes. Please wait..."
+echo "Retrieving Cluster ID..."
+sleep 120
+
+CLUSTER_ID=""
+while [ -z "$CLUSTER_ID" ] || [ "$CLUSTER_ID" = "null" ]; do
+    CLUSTER_ID=$(linode-cli lke clusters-list --json | jq -r --arg label "$CLUSTER_LABEL" '.[] | select(.label | contains($label)) | .id')
+
+    if [ -z "$CLUSTER_ID" ] || [ "$CLUSTER_ID" = "null" ]; then
+        echo "Waiting for cluster to appear..."
+        sleep 10
+        CLUSTER_ID="" # Reset to ensure the loop expression evaluates correctly next turn
+    fi
+done
+
+echo "Cluster ID: $CLUSTER_ID"
+
+#############################################
+# Wait Until Ready
+#############################################
+
+echo "Waiting for cluster to become READY..."
+
+[ $(linode-cli lke pools-list "$CLUSTER_ID" --json | jq '.[] | .nodes[] | select(.status == "ready")' | jq -s 'length') -eq $NODE_COUNT ] && echo "Cluster is READY"
+sleep 90
+#############################################
+# Download & Export kubeconfig
+#############################################
+# Create the directory if it doesn't exist
+unset KUBECONFIG
+rm -f ~/.kube/config
+mkdir -p /tmp/HA-linode
+
+# Download kubeconfig
+linode-cli lke kubeconfig-view "$CLUSTER_ID" --json \
+| jq -r '.[0].kubeconfig' \
+| base64 --decode > /tmp/HA-linode/kubeconfig.yaml
+
+# Export KUBECONFIG
+export KUBECONFIG=/tmp/HA-linode/kubeconfig.yaml
+echo "KUBECONFIG exported: $KUBECONFIG"
+
+if [ -f /tmp/HA-linode/kubeconfig.yaml ]; then
+    export KUBECONFIG=/tmp/HA-linode/kubeconfig.yaml
+    echo "Kubeconfig downloaded successfully."
+else
+    echo "ERROR: Failed to download kubeconfig."
+    exit 1
+fi
+#############################################
+# Verify Cluster
+#############################################
+
+echo "Current Context:"
+kubectl config current-context
+
+echo
+echo "Worker Nodes:"
+kubectl get nodes
+
+echo
+echo "System Pods:"
+kubectl get pods -A
+
+#############################################
+# Finished
+#############################################
+
+echo "======================================="
+echo "Linode Kubernetes Cluster is Ready!"
+echo "Cluster ID : $CLUSTER_ID"
+echo "Kubeconfig : $KUBECONFIG"
+echo "======================================="
+
+echo "Cluster is ready for PMM HA Installation using Helm."
+
+sleep 60
+
+######################################
+#Install PMM HA dependencies
+######################################
+# 1. Create PMM Namespace on LKE
+
+kubectl create namespace pmm
+
+#2. Install PMM HA dependencies - Install operators
+
+helm repo add percona https://percona.github.io/percona-helm-charts/ --force-update
+helm repo update
+
+
+helm install pmm-operators percona/pmm-ha-dependencies --namespace pmm
+
+# Wait for all operators to be ready (typically 2-3 minutes)
+kubectl wait --for=condition=ready pod \
+  -l app.kubernetes.io/name=victoria-metrics-operator \
+  -n pmm --timeout=300s
+kubectl wait --for=condition=ready pod \
+  -l app.kubernetes.io/name=altinity-clickhouse-operator \
+  -n pmm --timeout=300s
+kubectl wait --for=condition=ready pod \
+  -l app.kubernetes.io/name=pg-operator \
+  -n pmm --timeout=300s
+echo "PMM dependencies installed successfully!"
+# check pods
+kubectl get pods -n pmm
+
+# Create secret
+PG_PW=$(openssl rand -base64 24 | tr -dc 'a-zA-Z0-9' | head -c 24)
+GF_PW=$(openssl rand -base64 24 | tr -dc 'a-zA-Z0-9' | head -c 24)
+CH_PW=$(openssl rand -base64 24 | tr -dc 'a-zA-Z0-9' | head -c 24)
+VM_PW=$(openssl rand -base64 24 | tr -dc 'a-zA-Z0-9' | head -c 24)
+
+kubectl create secret generic pmm-secret \
+  --from-literal=PMM_ADMIN_PASSWORD="$PMM_PW" \
+  --from-literal=PMM_CLICKHOUSE_USER="clickhouse_pmm" \
+  --from-literal=PMM_CLICKHOUSE_PASSWORD="$CH_PW" \
+  --from-literal=VMAGENT_remoteWrite_basicAuth_username="victoriametrics_pmm" \
+  --from-literal=VMAGENT_remoteWrite_basicAuth_password="$VM_PW" \
+  --from-literal=PG_PASSWORD="$PG_PW" \
+  --from-literal=GF_PASSWORD="$GF_PW" \
+  --namespace pmm
+echo " PMM Secrets created successfully!"
+sleep 45
+
+
+#####################################
+#Install PMM HA
+#####################################
+
+helm install pmm-ha percona/pmm-ha --namespace pmm
+
+# Wait for deployment to complete
+
+kubectl wait --for=condition=ready \
+  $(kubectl get pods -n pmm -o name | grep pmm-ha-haproxy) \
+  -n pmm --timeout=15m
+
+kubectl get pods -n pmm
+echo " HAPPY HELMING!!!!"
+
+#####################################
+# External access - LOAD BALANCER
+#####################################
+kubectl patch svc pmm-ha-haproxy \
+  -n pmm \
+  -p '{"spec":{"type":"LoadBalancer"}}'
+
+while true; do EXTERNAL_IP=$(kubectl get svc pmm-ha-haproxy -n pmm -o jsonpath='{.status.loadBalancer.ingress[0].ip}'); if [[ -n "$EXTERNAL_IP" ]]; then break; fi; echo "Waiting for LoadBalancer..."; sleep 15; done
+echo "External IP: ${EXTERNAL_IP}"
+
+
+###################################
+#Cluster Summary and pod logs
+####################################
+mkdir -p /tmp/helm-debug
+kubectl get pods -n pmm -o wide > /tmp/helm-debug/pods.txt || true
+kubectl get events -n pmm --sort-by=.metadata.creationTimestamp > /tmp/helm-debug/events.txt || true
+echo "Pod logs and events at /tmp/helm-debug"
+
+echo " CLUSTER SUMMARY---------"
+echo "External IP: ${EXTERNAL_IP}"
+echo "PMM HA is available at:"
+echo "https://${EXTERNAL_IP}"
+echo "PMM PAssword : $PMM_PW"
+echo "Clickhouse password: $CH_PW"
+echo "Postgres password: $PG_PW"
+echo "Grafana password: $GF_PW"
+echo "VM password: $VM_PW"