Rollout Management

Advanced15 minTrending

Manage deployment rollouts including monitoring progress, pausing, resuming, and rolling back to previous versions.

Prerequisites

-kubectl configured
-An existing deployment

Steps

Check rollout status

Monitor the progress of a deployment rollout.

$ kubectl rollout status deployment/<deployment-name>

View rollout history

See previous revisions of a deployment including change causes.

$ kubectl rollout history deployment/<deployment-name>

Add --revision=N to see the details of a specific revision.

Pause a rollout

Pause a rollout mid-way to inspect or run canary tests before proceeding.

$ kubectl rollout pause deployment/<deployment-name>

Resume a paused rollout

Continue a paused rollout after validation.

$ kubectl rollout resume deployment/<deployment-name>

Rollback to the previous revision

Revert a deployment to its last known good state.

$ kubectl rollout undo deployment/<deployment-name>

Use --to-revision=N to roll back to a specific revision number from the history.

Full Script

full-script.sh

#!/bin/bash
# Rollout Management
set -euo pipefail

DEPLOYMENT=${1:?"Usage: $0 <deployment-name> [namespace]"}
NS=${2:-"default"}

echo "=== Deployment Status ==="
kubectl get deployment "$DEPLOYMENT" -n "$NS" -o wide

echo ""
echo "=== Rollout Status ==="
kubectl rollout status deployment/"$DEPLOYMENT" -n "$NS" --timeout=5s 2>&1 || true

echo ""
echo "=== Rollout History ==="
kubectl rollout history deployment/"$DEPLOYMENT" -n "$NS"

echo ""
echo "=== Current ReplicaSets ==="
kubectl get rs -n "$NS" -l "app=$DEPLOYMENT" -o wide 2>/dev/null || kubectl get rs -n "$NS" | head -10

echo ""
echo "=== Rollout Commands ==="
echo "Rollback:  kubectl rollout undo deployment/$DEPLOYMENT -n $NS"
echo "Pause:     kubectl rollout pause deployment/$DEPLOYMENT -n $NS"
echo "Resume:    kubectl rollout resume deployment/$DEPLOYMENT -n $NS"
echo "Revision:  kubectl rollout undo deployment/$DEPLOYMENT -n $NS --to-revision=N"

FAQ

Discussion

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#!/bin/bash # Rollout Management set -euo pipefail DEPLOYMENT=${1:?"Usage: $0 <deployment-name> [namespace]"} NS=${2:-"default"} echo "=== Deployment Status ===" kubectl get deployment "$DEPLOYMENT" -n "$NS" -o wide echo "" echo "=== Rollout Status ===" kubectl rollout status deployment/"$DEPLOYMENT" -n "$NS" --timeout=5s 2>&1 || true echo "" echo "=== Rollout History ===" kubectl rollout history deployment/"$DEPLOYMENT" -n "$NS" echo "" echo "=== Current ReplicaSets ===" kubectl get rs -n "$NS" -l "app=$DEPLOYMENT" -o wide 2>/dev/null || kubectl get rs -n "$NS" | head -10 echo "" echo "=== Rollout Commands ===" echo "Rollback: kubectl rollout undo deployment/$DEPLOYMENT -n $NS" echo "Pause: kubectl rollout pause deployment/$DEPLOYMENT -n $NS" echo "Resume: kubectl rollout resume deployment/$DEPLOYMENT -n $NS" echo "Revision: kubectl rollout undo deployment/$DEPLOYMENT -n $NS --to-revision=N"