flux-operator-cli

What this skill does

# Flux Operator CLI

## Installation

```bash
brew install controlplaneio-fluxcd/tap/flux-operator
```

Uses `~/.kube/config`. Supports offline (no cluster) and online commands.

## Command Overview

Commands fall into two categories: **offline** (no cluster access) and **online** (requires cluster).

### Offline Commands (no cluster needed)

| Command | Purpose |
|---------|---------|
| `build instance` | Generate K8s manifests from a FluxInstance YAML |
| `build rset` | Generate K8s manifests from a ResourceSet YAML |
| `diff yaml <source> <target>` | Compare YAML files, produce RFC 6902 JSON patch |
| `patch instance` | Generate kustomize patches for upgrading Flux controllers |

### Online Commands (cluster access required)

| Command | Purpose |
|---------|---------|
| `get instance\|rset\|rsip\|all` | List Flux Operator resources and their status |
| `export report` | Export FluxReport with distribution status |
| `export resource <kind>/<name>` | Export a Flux resource as YAML/JSON |
| `reconcile instance\|rset\|rsip\|resource\|all` | Trigger reconciliation |
| `suspend instance\|rset\|rsip\|resource` | Pause reconciliation |
| `resume instance\|rset\|rsip\|resource` | Resume reconciliation |
| `delete instance\|rset\|rsip` | Delete Flux resources |
| `stats` | Reconciliation statistics and storage usage |
| `trace <kind>/<name>` | Trace object through GitOps delivery pipeline |
| `tree rset\|ks\|hr` | Visualize managed objects as a tree |
| `wait instance\|rset\|rsip` | Poll until resource is ready |
| `create secret <type>` | Create Kubernetes secrets for Flux |
| `install` | Bootstrap cluster with Flux Operator + instance |
| `uninstall` | Remove Flux Operator from cluster |
| `version` | Show CLI, operator, and distribution versions |

## Common Patterns

### Build and preview manifests locally

```bash
# Build FluxInstance manifests
flux-operator build instance -f flux-instance.yaml

# Build ResourceSet with inputs
flux-operator build rset -f resourceset.yaml \
  --inputs-from inputs.yaml

# Diff two YAML files (local or remote URLs)
flux-operator diff yaml old.yaml new.yaml -o json-patch-yaml
```

### Day-2 cluster operations

```bash
# Check status of everything
flux-operator get all -A

# Filter by readiness
flux-operator get all --ready-status=False

# Reconcile a stuck resource
flux-operator reconcile resource Kustomization/my-app -n default --wait

# Reconcile everything
flux-operator reconcile all --wait

# Trace where an object comes from in the GitOps pipeline
flux-operator trace Deployment/my-app -n default

# View the object tree under a Kustomization
flux-operator tree ks my-app -n default
```

### Upgrade Flux controllers

```bash
# Generate upgrade patches for a target version
flux-operator patch instance -f flux-instance.yaml -v v2.5

# With a custom registry
flux-operator patch instance -f flux-instance.yaml -v v2.5 \
  -r my-registry.example.com/flux

# Verify controllers updated
flux-operator get instance -A
```

### Suspend and resume for maintenance

```bash
# Suspend before maintenance
flux-operator suspend instance flux -n flux-system

# Verify suspended
flux-operator get instance flux -n flux-system

# Resume after maintenance
flux-operator resume instance flux -n flux-system --wait
```

### Delete with safety

```bash
# Delete but keep managed resources in place
flux-operator delete instance flux -n flux-system --with-suspend

# Delete and wait for completion
flux-operator delete rset my-rset -n default --wait

# Verify deletion
flux-operator get all -n default
```

### Bootstrap a cluster

```bash
# Basic install
flux-operator install

# Verify install succeeded
flux-operator get all -A

# Install with Git sync
flux-operator install \
  --instance-sync-url=https://github.com/org/fleet \
  --instance-sync-ref=main \
  --instance-sync-path=clusters/production \
  --instance-sync-creds=username:ghp_token

# Install with cluster tuning
flux-operator install \
  --instance-cluster-type=aws \
  --instance-cluster-size=large \
  --instance-cluster-multitenant
```

### Create secrets for Flux

```bash
# Git SSH auth
flux-operator create secret ssh my-ssh-secret \
  --private-key-file=id_ed25519 \
  --knownhosts-file=known_hosts \
  -n flux-system

# Container registry auth
flux-operator create secret registry my-reg-secret \
  --server=ghcr.io \
  --username=bot \
  --password-stdin \
  -n flux-system

# SOPS age encryption
flux-operator create secret sops my-sops-secret \
  --age-key-file=age.key \
  -n flux-system

# Export as YAML instead of applying (for GitOps)
flux-operator create secret basic-auth my-auth \
  --username=admin --password=secret --export
```

### Uninstall

```bash
# Full removal
flux-operator -n flux-system uninstall

# Keep the namespace
flux-operator -n flux-system uninstall --keep-namespace

# Verify removal
flux-operator version
```

## References

- [references/commands-build-diff-patch.md](references/commands-build-diff-patch.md) - Build, diff, and patch commands
- [references/commands-cluster-ops.md](references/commands-cluster-ops.md) - Cluster operations (get, reconcile, suspend, resume, etc.)
- [references/commands-secrets.md](references/commands-secrets.md) - All create secret subcommands
- [references/commands-skills.md](references/commands-skills.md) - Skills management commands

## Abbreviations

| Short | Full Resource |
|-------|--------------|
| `rset` | ResourceSet |
| `rsip` | ResourceSetInputProvider |
| `ks` | Kustomization |
| `hr` | HelmRelease |

## Tips

- Use `--export` on `create secret` commands to generate YAML without applying — useful
  for GitOps workflows where secrets are managed declaratively.

- `trace` walks backward from any Kubernetes object to find which Flux reconciler
  manages it and where the source manifests live.

- `diff yaml` accepts remote URLs (GitHub, GitLab, Gist, OCI) in addition to local files.

- `patch instance` modifies the FluxInstance YAML in-place and replaces previously
  generated patches, so it's safe to run repeatedly.

- `install` is designed for dev/test environments. For production, use Helm charts.