Stage 4 — Runtime

Five modules covering the runtime half of DevSecOps: the controls that operate after the artifact is deployed. Stage 0–3 catch issues at design, code, build, and deploy. Stage 4 catches what gets through.

Modules

What You Should Be Able to Do After Stage 4

  • Replace static secrets in workloads with workload identity or Vault dynamic secrets
  • Deploy and tune Falco for runtime detection
  • Run a continuous evidence collection pipeline
  • Conduct a blameless postmortem and ship the improvements
  • Design a chaos game day
  • Assemble the full reference pipeline from M05–M19

The Shift-Right Half

  Shift-Left (M05-M15)                Shift-Right (M16-M20)
  -------------------                 ----------------------
  SAST, secrets, SCA, SBOM            Secret management
  Image scan, IaC scan                Runtime detection
  Pipeline hardening, OIDC            IR, compliance
  Signing, attestations, policy       Capstone
  ---------------                     ---------------
  Prevent the issue                   Catch the issue
  Cheap, fast, deterministic         Costlier, slower, exploratory
  Coverage = "we ran the scanner"     Coverage = "we know what to do"

The two halves are not redundant; they are complementary. A mature DevSecOps program has both, integrated.

The Mature State

The capstone (M20) is the destination. The path is the 19 prior modules. After the capstone, the pipeline is:

  • Preventing 95% of issues at design/code/build (M01–M15)
  • Detecting 99% of remaining issues at runtime (M17)
  • Responding to detected issues in under 30 minutes (M19)
  • Producing audit evidence continuously (M18)
  • Improving with every incident (the loop-back)

The pipeline is never “done.” It is a living system that grows with the org, the threats, and the regulations.