/list

Name

olm:list

Synopsis

/olm:list [namespace] [--all-namespaces]

Description

The olm:list command lists all installed operators in an OpenShift cluster, showing their status, version, and namespace. This command provides a quick overview of the operator landscape in your cluster.

This command helps you:

• Discover what operators are currently installed
• Check operator versions and status at a glance
• Identify operators that may need attention (failed, upgrading, etc.)
• Get a comprehensive view across namespaces

The command presents information in an easy-to-read table format with key details about each operator's ClusterServiceVersion (CSV) and Subscription.

Implementation

The command performs the following steps:

1. Parse Arguments:

   • $1: Namespace (optional) - Target namespace to list operators from
   • $2: Flag (optional):
     • --all-namespaces or -A: List operators across all namespaces (default behavior if no namespace specified)

2. Prerequisites Check:

   • Verify oc CLI is installed: which oc
   • Verify cluster access: oc whoami
   • If not installed or not authenticated, provide clear instructions

3. Determine Scope:

   • If namespace is specified: List operators only in that namespace
   • If --all-namespaces flag or no arguments: List operators cluster-wide
   • Default behavior: Show all operators across all namespaces

4. Fetch Operator Data:

   • Get all ClusterServiceVersions (CSVs):

     # For specific namespace
     oc get csv -n {namespace} -o json
     
     # For all namespaces
     oc get csv --all-namespaces -o json
     

   • Get all Subscriptions:

     # For specific namespace
     oc get subscription -n {namespace} -o json
     
     # For all namespaces
     oc get subscription --all-namespaces -o json
     

5. Parse and Correlate Data:

   • For each CSV, extract:
     • Name: .metadata.name
     • Namespace: .metadata.namespace
     • Display Name: .spec.displayName
     • Version: .spec.version
     • Phase/Status: .status.phase (e.g., "Succeeded", "Installing", "Failed")
     • Install Time: .metadata.creationTimestamp
   • For each Subscription, extract:
     • Operator Name: .spec.name
     • Channel: .spec.channel
     • Source: .spec.source
     • Installed CSV: .status.installedCSV
     • Current CSV: .status.currentCSV
   • Correlate Subscriptions with CSVs to show complete operator information

6. Format Output as Table: Create a formatted table with columns:

   NAMESPACE                    OPERATOR NAME                           VERSION    STATUS      CHANNEL       SOURCE
   cert-manager-operator        cert-manager-operator                   v1.13.1    Succeeded   stable-v1     redhat-operators
   external-secrets-operator    external-secrets-operator               v0.10.5    Succeeded   stable-v0.10  redhat-operators
   openshift-pipelines          openshift-pipelines-operator-rh         v1.14.4    Succeeded   latest        redhat-operators
   

7. Add Summary Statistics:

   • Total operators installed: X
   • By status:
     • Succeeded: X
     • Installing: X
     • Upgrading: X
     • Failed: X
   • By catalog source:
     • redhat-operators: X
     • certified-operators: X
     • community-operators: X
     • custom catalogs: X

8. Highlight Issues (if any):

   • List operators with status other than "Succeeded":

     ⚠️ Operators requiring attention:
     - namespace/operator-name: Failed (reason: ...)
     - namespace/operator-name: Installing (waiting for...)
     

9. Provide Actionable Suggestions:

   • If operators are in "Failed" state, suggest: /olm:status {operator-name} {namespace} for details
   • If no operators found, suggest: /olm:search {operator-name} to find available operators
   • If upgrades available, suggest: /olm:status {operator-name} to check upgrade options

Return Value

• Success: Formatted table of installed operators with summary statistics
• Empty: No operators found message with suggestion to install operators
• Error: Connection or permission error with troubleshooting guidance
• Format:
  • Table with columns: NAMESPACE, OPERATOR NAME, VERSION, STATUS, CHANNEL, SOURCE
  • Summary statistics
  • Warnings for operators requiring attention

Examples

1. List all operators cluster-wide:

   /olm:list
   

2. List operators in a specific namespace:

   /olm:list cert-manager-operator
   ``
   

Arguments

• $1 (namespace): Target namespace to list operators from (optional)
  • If not provided, lists operators from all namespaces
  • Example: "cert-manager-operator"
• $2 (flag): Optional flag (optional)
  • --all-namespaces or -A: Explicitly list all operators cluster-wide
  • Default behavior if no namespace is provided

Notes

• Performance: For large clusters with many operators, the command may take a few seconds to collect all data
• Status Values: Common CSV status values include:
  • Succeeded: Operator is healthy and running
  • Installing: Operator is being installed
  • Upgrading: Operator is being upgraded
  • Failed: Operator installation or operation failed
  • Replacing: Old version being replaced
  • Deleting: Operator is being removed
• Correlation: The command correlates Subscriptions with CSVs to provide complete operator information
• Sorting: Results are sorted by namespace, then by operator name

Troubleshooting

• Permission denied: Ensure you have permissions to list CSVs and Subscriptions:

  oc auth can-i list csv --all-namespaces
  oc auth can-i list subscription --all-namespaces
  

• Slow response: For large clusters, use namespace-specific queries to speed up results
• Missing operators: Some operators may not have Subscriptions if installed manually; these will still appear based on CSV presence
• Version mismatch: If Subscription's installedCSV differs from currentCSV, an upgrade may be in progress

Related Commands

• /olm:status <operator-name> [namespace] - Get detailed status of a specific operator
• /olm:install <operator-name> - Install a new operator
• /olm:search <query> - Search for available operators in catalogs

Additional Resources

• Operator Lifecycle Manager Documentation