Jenkins CLI (jk)

jk is a GitHub CLI–style interface for Jenkins controllers. It provides modern, scriptable workflows for developers and operators.

Dependency Check

Before executing any jk command, verify the CLI is installed:

bash

jk --version

If the command fails or jk is not found, install it using one of these methods:

Platform	Command
macOS/Linux	`brew install avivsinai/tap/jk`
Windows	`scoop bucket add avivsinai https://github.com/avivsinai/scoop-bucket && scoop install jk`
Go	`go install github.com/avivsinai/jenkins-cli/cmd/jk@latest`
Binary	Download from GitHub Releases

Only proceed with jk commands after confirming installation succeeds.

Authentication

bash

# Login with credentials
jk auth login https://jenkins.example.com --username alice --token <API_TOKEN>

# Login with custom context name
jk auth login https://jenkins.example.com --name prod --username alice --token <TOKEN>

# Login with TLS options
jk auth login https://jenkins.example.com --username alice --token <TOKEN> --insecure
jk auth login https://jenkins.example.com --username alice --token <TOKEN> --ca-file /path/to/ca.pem

# Check auth status (active context)
jk auth status

# Logout from a context
jk auth logout              # Logout from active context
jk auth logout prod         # Logout from specific context

Options for auth login:

•--name — Context name (defaults to hostname)
•--username — Jenkins username
•--token — API token
•--insecure — Skip TLS verification
•--proxy — Proxy URL
•--ca-file — Custom CA bundle
•--set-active — Set as active context (default: true)
•--allow-insecure-store — Allow encrypted file fallback

Contexts

Contexts store controller URLs and credentials for easy switching:

bash

# List contexts (* = active)
jk context ls

# Switch active context
jk context use prod-jenkins

# Remove a context
jk context rm staging

Environment: JK_CONTEXT overrides active context.

Quick Command Reference

Task	Command
Search jobs	`jk search --job-glob 'deploy'`
List jobs	`jk job ls`
View job	`jk job view team/app`
List runs	`jk run ls team/app`
Start run	`jk run start team/app -p KEY=value`
View run	`jk run view team/app 128`
Follow logs	`jk run start team/app --follow`
Stream logs	`jk log team/app 128 --follow`
Download artifacts	`jk artifact download team/app 128`
Test report	`jk test report team/app 128`
List credentials	`jk cred ls`
List nodes	`jk node ls`
View queue	`jk queue ls`
List plugins	`jk plugin ls`

Job Discovery

bash

# Search across folders
jk search --job-glob '*deploy*' --limit 10

# Search in specific folder
jk search --folder team/services --job-glob '*api*'

# Filter by run results
jk search --job-glob '*' --filter result=FAILURE --since 7d

# With parameter filters
jk search --job-glob '*/deploy-*' --filter param.ENV=production

Job Operations

bash

# List jobs in root
jk job ls

# List jobs in folder (positional or flag)
jk job ls team/app
jk job ls --folder team/app

# View job details
jk job view team/app/pipeline

Run Management

Listing Runs

bash

# List recent runs
jk run ls team/app/pipeline

# Limit results
jk run ls team/app/pipeline --limit 50

# Filter runs
jk run ls team/app/pipeline --filter result=SUCCESS
jk run ls team/app/pipeline --filter result=FAILURE --since 7d

# Filter by parameters
jk run ls team/app/pipeline --filter param.ENV=staging

# Include queued builds
jk run ls team/app/pipeline --include-queued

# Group by parameter
jk run ls team/app/pipeline --group-by param.ENV --agg last

# With metadata for agents
jk run ls team/app/pipeline --json --with-meta

# Pagination
jk run ls team/app/pipeline --cursor <cursor-from-previous>

Starting Runs

bash

# Start a run
jk run start team/app/pipeline

# Start with parameters
jk run start team/app/pipeline -p BRANCH=main -p ENV=staging

# Start and follow logs
jk run start team/app/pipeline --follow

# Start, wait for completion (no log streaming)
jk run start team/app/pipeline --wait --timeout 10m

# Get only the result
jk run start team/app/pipeline --follow --result

# Fuzzy job matching
jk run start deploy --fuzzy

Viewing Runs

bash

# View run details
jk run view team/app/pipeline 128

# Get only result status
jk run view team/app/pipeline 128 --result

# Exit with build result code
jk run view team/app/pipeline 128 --exit-status

# Wait for completion
jk run view team/app/pipeline 128 --wait --timeout 5m

# Show summary
jk run view team/app/pipeline 128 --summary

Other Run Commands

bash

# View run parameters
jk run params team/app/pipeline

# Cancel a run
jk run cancel team/app/pipeline 128
jk run cancel team/app/pipeline 128 --mode term
jk run cancel team/app/pipeline 128 --mode kill

# Rerun a build (with same parameters)
jk run rerun team/app/pipeline 128
jk run rerun team/app/pipeline 128 --follow

Logs

bash

# View console log (snapshot)
jk log team/app/pipeline 128

# Stream live logs
jk log team/app/pipeline 128 --follow

# Custom poll interval
jk log team/app/pipeline 128 --follow --interval 2s

# Plain output (no decorations)
jk log team/app/pipeline 128 --plain

Artifacts

bash

# List artifacts
jk artifact ls team/app/pipeline 128

# Download all artifacts
jk artifact download team/app/pipeline 128

# Download with pattern filter
jk artifact download team/app/pipeline 128 --pattern "**/*.jar"
jk artifact download team/app/pipeline 128 -p "reports/**/*.xml"

# Output directory
jk artifact download team/app/pipeline 128 -o ./artifacts/

# Allow empty result (no error if no matches)
jk artifact download team/app/pipeline 128 -p "*.log" --allow-empty

Test Results

bash

# View test report
jk test report team/app/pipeline 128

# JSON output
jk test report team/app/pipeline 128 --json

Credentials

bash

# List credentials (system scope)
jk cred ls

# List folder-scoped credentials
jk cred ls --scope folder --folder team/app

# Create secret text
jk cred create-secret --id my-secret --secret "value"
jk cred create-secret --id my-secret --secret "value" --description "API key"

# Create from stdin
echo "secret-value" | jk cred create-secret --id my-secret --from-stdin

# Folder-scoped credential
jk cred create-secret --id my-secret --secret "value" --scope folder --folder team/app

# Delete credential (system scope only)
jk cred rm my-secret

Node Management

bash

# List nodes
jk node ls

# Cordon node (mark temporarily offline)
jk node cordon agent-01
jk node cordon agent-01 --message "Maintenance"

# Uncordon node (bring back online)
jk node uncordon agent-01

# Remove node
jk node rm agent-01

Queue Management

bash

# List queued items
jk queue ls

# Cancel queued item
jk queue cancel <item-id>

Plugin Management

bash

# List installed plugins
jk plugin ls

# Install plugin (prompts for confirmation)
jk plugin install docker-workflow

# Install without confirmation
jk plugin install docker-workflow --yes

# Install specific version
jk plugin install docker-workflow@1.26

# Enable/disable plugin
jk plugin enable docker-workflow
jk plugin disable docker-workflow

Output Modes

All commands support structured output:

bash

# JSON output
jk run ls team/app --json

# YAML output
jk run ls team/app --yaml

# Filter with jq expression
jk run ls team/app --json --jq '.items[0].number'

# Go template
jk run ls team/app --json --template '{{range .items}}{{.number}}{{end}}'

# Quiet mode (minimal output)
jk run start team/app --quiet

Global Options

•-c, --context <name> — Use specific context
•--json — JSON output
•--yaml — YAML output
•--format json|yaml — Output format
•--jq <expr> — Filter JSON with jq expression
•-t, --template <tmpl> — Format with Go template
•-q, --quiet — Suppress non-essential output

Environment Variables

•JK_CONTEXT — Override active context

Exit Codes

Code	Meaning
0	Success
1	General error
2	Validation error
3	Not found
4	Authentication failure
5	Permission denied
6	Connectivity failure
7	Timeout
8	Feature unsupported

With --follow or --wait, build results use additional codes:

Code	Result
0	SUCCESS
10	UNSTABLE
11	FAILURE
12	ABORTED
13	NOT_BUILT
14	RUNNING

References

•Full command reference: See references/commands.md