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scale_down.sh
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scale_down.sh
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#!/bin/bash
NAMESPACES="united-manufacturing-hub mgmtcompanion"
REPLICA_FILE="replica_counts.txt"
# Ensure the replica file is empty
echo "" >$REPLICA_FILE
for NAMESPACE in $NAMESPACES; do
# Scale down Deployments
for DEPLOYMENT in $(sudo $(which kubectl) get deployments -n $NAMESPACE -o jsonpath='{.items[*].metadata.name}' --kubeconfig /etc/rancher/k3s/k3s.yaml); do
# Get current replica count
CURRENT_REPLICA=$(sudo $(which kubectl) get deployment $DEPLOYMENT -n $NAMESPACE -o jsonpath='{.spec.replicas}' --kubeconfig /etc/rancher/k3s/k3s.yaml)
echo "Deployment $DEPLOYMENT has $CURRENT_REPLICA replicas. Scaling down to 0."
# Save to file
echo "Deployment $DEPLOYMENT $CURRENT_REPLICA" >>$REPLICA_FILE
# Scale down
sudo $(which kubectl) scale deployment $DEPLOYMENT --replicas=0 -n $NAMESPACE --kubeconfig /etc/rancher/k3s/k3s.yaml
done
# Scale down StatefulSets
for STATEFULSET in $(sudo $(which kubectl) get statefulsets -n $NAMESPACE -o jsonpath='{.items[*].metadata.name}' --kubeconfig /etc/rancher/k3s/k3s.yaml); do
# Get current replica count
CURRENT_REPLICA=$(sudo $(which kubectl) get statefulset $STATEFULSET -n $NAMESPACE -o jsonpath='{.spec.replicas}' --kubeconfig /etc/rancher/k3s/k3s.yaml)
echo "StatefulSet $STATEFULSET has $CURRENT_REPLICA replicas. Scaling down to 0."
# Save to file
echo "StatefulSet $STATEFULSET $CURRENT_REPLICA" >>$REPLICA_FILE
# Scale down
sudo $(which kubectl) scale statefulset $STATEFULSET --replicas=0 -n $NAMESPACE --kubeconfig /etc/rancher/k3s/k3s.yaml
done
done