flowchart TB
  reg[("Forge registry<br/>inventaire 1.0.0: e4dca78a…<br/>inventaire 1.1.0: 22368ebd…")]:::accent
  subgraph recette["Staging, port 8081"]
    rapp["inventaire.pyz"]
    rcfg["recette.env<br/>INVENTAIRE_ENV=recette"]:::muted
    rcfg --> rapp
  end
  subgraph production["Production, port 8082"]
    papp["inventaire.pyz"]
    pcfg["production.env<br/>INVENTAIRE_ENV=production"]:::muted
    pcfg --> papp
  end
  reg -->|"1. deploy 1.1.0"| rapp
  reg ==>|"2. promote: same checksum"| papp
  reg -.->|"3. roll back: 1.0.0"| papp