This is very helpful. I can see ledger has only 3 active cronjobs tracked in the charts repo: - apply_late_payment_fee - credit_statement_due - post_annual_fee

Let me check prd to confirm the same structure and also look at one cronjob template to understand how it references the version.

Implementation complete. Here's a summary of the changes made to .github/workflows/push_ecr.yml:

Changes Made

1. Added LEDGER_TRACKED_JOBS Environment Variable (line 29)

LEDGER_TRACKED_JOBS: "apply-late-payment-fee,create-statement-cycle,credit-statement-due,post-annual-fee,run-credit-replay"

2. Added generate-job-version Job (lines 146-161)

• Runs when ledger is in the affected services list
• Generates a timestamp-based version: job.YYYYMMDD.HHMM.{git_hash}
• Outputs job_version for downstream jobs

3. Added build-ledger-jobs Job (lines 374-507)

• Matrix strategy: 5 jobs × 3 environments (stg, prd, sbx)
• Branch builds only create stg images; main builds create all envs
• Uses the same build process as job_runner_build.yml:
• Checkout, Go build cache, buf generate
• Generate service config and job-specific config
• Run each job's prepare.sh script
• Build and push Docker image to ledger ECR repository
• Publishes build summary to workflow UI

4. Modified update-helm-values Job (lines 509-618)

• Updated needs to include generate-job-version and build-ledger-jobs
• Changed condition to use always() so it runs if either service or job builds succeed
• Added logic to update ledger job versions in charts repo:
• Updates {job_name}_version variables in ledger/chart/{env}/values.yaml
• Example: apply_late_payment_fee_version: job.20260109.1500.abc123.apply-late-payment-fee

Build Flow (when ledger is affected)

push_ecr.yml
├── check-label
├── tagging-new-version
├── compute-affected-services
├── generate-job-version (parallel)
├── upload-images (builds ledger service)
├── build-ledger-jobs (builds 5 jobs × 3 envs = 15 builds)
└── update-helm-values
    ├── Updates service image_tag
    └── Updates 5 job versions per env

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Based on this conversation, here's a knowledge share entry I'd like to add:

Title: Automating Ledger Job Builds with Service CI/CD Pipeline

Category: Configuration

Tags: github-actions, argocd

Problem Statement: Ledger cronjobs/jobs were built separately from the service using a manual workflow (job_runner_build.yml), requiring manual intervention to deploy updated jobs alongside service changes. The goal was to automatically build the 5 tracked ledger jobs whenever the ledger service is built, and update helm charts with both service and job image tags.

Solution/Content: Modified push_ecr.yml to automatically build ledger jobs alongside the service:

1. Added LEDGER_TRACKED_JOBS env var listing the 5 tracked jobs (from prd chart)
2. Added generate-job-version job that creates timestamp-based tags (job.YYYYMMDD.HHMM.{hash})
3. Added build-ledger-jobs job with matrix strategy (5 jobs × 3 envs) that:
4. Reuses Go build cache from service builds
5. Runs each job's prepare.sh script
6. Pushes to ledger ECR repository with tag format job.{timestamp}.{hash}.{job-name}
7. Modified update-helm-values to update both service image_tag and 5 job version variables (e.g., apply_late_payment_fee_version) in the charts repo

Key design decisions: - Branch builds only create stg images; main builds create all envs - Jobs only build when ledger is in affected services - Uses always() condition so helm updates run if either service or job builds succeed

Outcome: Solved

Should I add this to the Notion knowledge base?