Push

Push mirrors container images discovered in your Kubernetes cluster to AWS ECR. It discovers images from Pods (optionally filtered), creates ECR repositories on-demand, and performs a registry-to-registry copy while preserving multi-arch manifests (or a single platform when specified).

Quick Examples

# Push all images from all namespaces to ECR in eu-west-1
krane push -A -r eu-west-1

# Dry-run (show what would be pushed)
krane push -A -d

# Restrict to a single platform
krane push -A -p linux/amd64

# Skip tags that already exist in ECR
krane push -A -S

# Limit concurrency to 5 parallel transfers
krane push -A -c 5

How it Works

1. Discover images from Pods (namespace-scoped or cluster-wide)
2. Filter by image names and/or namespaces (prefix or regex)
3. Ensure target ECR repositories exist
4. Authenticate to ECR and mirror images
5. Optionally limit to a specific platform (e.g., linux/amd64)
6. Process images concurrently with a worker pool

See also:

• Core Flags
• Push Filters
• Concurrency