helm-release-management（头盔发布管理）

Helm Release Management

Comprehensive guidance for day-to-day Helm release operations including installation, upgrades, uninstallation, and release tracking.

When to Use

Use this skill automatically when:

• User requests deploying or installing Helm charts
• User mentions upgrading or updating Helm releases
• User wants to list or manage releases across namespaces
• User needs to check release history or status
• User requests uninstalling or removing releases

Core Release Operations

Install New Release

# Basic install
helm install <release-name> <chart> --namespace <namespace> --create-namespace

# Install with custom values
helm install myapp bitnami/nginx \
  --namespace production \
  --create-namespace \
  --values values.yaml \
  --set replicaCount=3

# Install with atomic rollback on failure
helm install myapp ./mychart \
  --namespace staging \
  --atomic \
  --timeout 5m \
  --wait

# Install from repository with specific version
helm install mydb bitnami/postgresql \
  --namespace database \
  --version 12.1.9 \
  --values db-values.yaml

# Dry-run before actual install
helm install myapp ./chart \
  --namespace prod \
  --dry-run \
  --debug

Key Flags:

• --namespace - Target namespace (ALWAYS specify explicitly)
• --create-namespace - Create namespace if it doesn't exist
• --values / -f - Specify values file(s)
• --set - Override individual values
• --atomic - Rollback automatically on failure (RECOMMENDED)
• --wait - Wait for resources to be ready
• --timeout - Maximum time to wait (default 5m)
• --dry-run --debug - Preview without installing

Upgrade Existing Release

# Basic upgrade with new values
helm upgrade myapp ./mychart \
  --namespace production \
  --values values.yaml

# Upgrade with value overrides
helm upgrade myapp bitnami/nginx \
  --namespace prod \
  --reuse-values \
  --set image.tag=1.21.0

# Upgrade with new chart version
helm upgrade mydb bitnami/postgresql \
  --namespace database \
  --version 12.2.0 \
  --atomic \
  --wait

# Install if not exists, upgrade if exists
helm upgrade --install myapp ./chart \
  --namespace staging \
  --create-namespace \
  --values values.yaml

# Force upgrade (recreate resources)
helm upgrade myapp ./chart \
  --namespace prod \
  --force \
  --recreate-pods

Key Flags:

• --reuse-values - Reuse existing values, merge with new
• --reset-values - Reset to chart defaults, ignore existing
• --install - Install if release doesn't exist
• --force - Force resource updates (use cautiously)
• --recreate-pods - Recreate pods even if no changes
• --cleanup-on-fail - Delete new resources on failed upgrade

Value Override Precedence (lowest to highest):

1. Chart default values (values.yaml in chart)
2. Previous release values (with --reuse-values)
3. Parent chart values
4. User-specified values files (-f values.yaml)
5. Individual value overrides (--set key=value)

Uninstall Release

# Basic uninstall
helm uninstall myapp --namespace production

# Uninstall but keep history (allows rollback)
helm uninstall myapp \
  --namespace staging \
  --keep-history

# Uninstall with timeout
helm uninstall myapp \
  --namespace prod \
  --timeout 10m \
  --wait

List Releases

# List releases in namespace
helm list --namespace production

# List all releases across all namespaces
helm list --all-namespaces

# List with additional details
helm list \
  --all-namespaces \
  --output yaml \
  --max 50

# List including uninstalled releases
helm list --namespace staging --uninstalled

# Filter releases by name pattern
helm list --filter '^my.*' --namespace prod

Key Flags:

• --all-namespaces / -A - List releases across all namespaces
• --all - Show all releases including failed
• --uninstalled - Show uninstalled releases
• --failed - Show only failed releases
• --pending - Show pending releases
• --filter - Filter by release name (regex)

Release Information & History

Check Release Status

# Get release status
helm status myapp --namespace production

# Show deployed resources
helm status myapp \
  --namespace prod \
  --show-resources

View Release History

# View revision history
helm history myapp --namespace production

# View detailed history
helm history myapp \
  --namespace prod \
  --output yaml \
  --max 10

Inspect Release

# Get deployed manifest
helm get manifest myapp --namespace production

# Get deployed values
helm get values myapp --namespace production

# Get all values (including defaults)
helm get values myapp --namespace prod --all

# Get release metadata
helm get metadata myapp --namespace production

# Get release notes
helm get notes myapp --namespace production

# Get everything
helm get all myapp --namespace production

For common workflows (deploy new application, update configuration, upgrade chart version, multi-environment deployment), best practices, troubleshooting, and integration with other tools, see REFERENCE.md.

Agentic Optimizations

Related Skills

• Helm Debugging - Troubleshooting failed deployments
• Helm Values Management - Advanced values configuration
• Helm Release Recovery - Rollback and recovery strategies
• ArgoCD CLI Login - GitOps integration with ArgoCD
• Kubernetes Operations - Managing deployed resources

References

• Helm Install Documentation
• Helm Upgrade Documentation
• Helm Best Practices
• Helm Values Documentation