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:PROPERTIES:
:ID: 9bf19a8b-5581-4be8-9892-913c51df0128
:END:
#+DATE: 2026-04-10
#+filetags: :ess:esp:microlise:manifest:
#+STARTUP: showall
#+title: ESP — The Manifest
* What Is the Manifest?
:PROPERTIES:
:RELATED: [[id:a6c345df-8db9-4538-b87e-0e72e2414905][ESP Deployment Pipeline — Index]]
:STATUS: Design not yet finalised
:END:
The manifest is a *configuration file* that describes a specific customer environment. The deployment scripts read the manifest to understand *what* to deploy, *where*, and *how*.
There will be one manifest per customer/environment combination, for example:
- ~ROMAC_DEV.json~ (or ~.yaml~, ~.psd1~ — format TBC)
- ~ROMAC_PROD.json~
- ~ACMECORP_DEV.json~
* Why the Manifest Matters
Without a manifest, the scripts would have no way of knowing:
- Which server(s) to connect to
- Which apps this customer actually uses
- What credentials to use
- What version is being deployed
- What environment-specific configuration to apply
It is the *single source of truth* for a deployment. Tier 1 loads it, validates it, and passes it to Tier 2. Tier 2 extracts values from it and passes those to Tier 3.
* Design Status
The manifest *structure has not yet been fully designed*. This is an open work item. See [[id:82c3d447-d6d3-498e-9f66-aee60c752462][ESP — Open Questions & TBC Items]] for a list of design questions to resolve.
What follows is a *proposed structure* based on what the scripts will need.
* Proposed Manifest Structure
#+BEGIN_SRC json
{
"customer": "ROMAC",
"environment": "DEV",
"version": "3.2.1",
"servers": {
"appServer": "ROMAC-DEV-APP01",
"dbServer": "ROMAC-DEV-DB01",
"citrixServer": "ROMAC-DEV-CTX01"
},
"database": {
"name": "EspBroker",
"dacpacReady": false
},
"windowsServices": {
"DLService": { "enabled": true, "installPath": "C:\\ESP\\DLService" },
"EmailService": { "enabled": true, "installPath": "C:\\ESP\\EmailService" },
"ExPlService": { "enabled": false },
"MISService": { "enabled": true, "installPath": "C:\\ESP\\MISService" },
"OutboundService": { "enabled": true, "installPath": "C:\\ESP\\OutboundService" },
"ULService": { "enabled": false }
},
"citrixApps": {
"VPlanner": { "enabled": true, "installPath": "C:\\ESP\\VPlanner" },
"VPlannerAdmin": { "enabled": true, "installPath": "C:\\ESP\\VPlannerAdmin" },
"ImportApp": { "enabled": false }
},
"citrix": {
"notificationMinutes": 15,
"sessionKillGracePeriodMinutes": 5
}
}
#+END_SRC
* Key Fields to Define
| Field | Purpose |
|-----------------------------+-------------------------------------------------------------|
| ~customer~ | Identifies the customer |
| ~environment~ | Identifies the environment (DEV/TEST/PROD) |
| ~version~ | Version of ESP being deployed |
| ~servers.*~ | Hostnames/IPs of servers to connect to |
| ~database.dacpacReady~ | Flag to indicate if DB is in a state for dacpac deployment |
| ~windowsServices.*.enabled~ | Whether this customer uses this service |
| ~citrixApps.*.enabled~ | Whether this customer uses this Citrix app |
| ~citrix.*~ | Citrix-specific config (notification timing, grace periods) |
* Manifest Validation (VALIDATE Stage)
The VALIDATE stage (see [[id:cd3cd02f-c9b3-4455-8ce5-b2a5aa458fed][ESP — Deployment Stages]]) loads the manifest and checks it is well-formed before any deployment activity. Things to validate:
- All required fields are present
- Server names are resolvable/pingable
- ~version~ matches available build artifacts
- ~dacpacReady~ flag prevents DB deployment if false
- No conflicting settings (e.g. test and prod on same server without flag)
* Manifest Location and Storage
Where manifests should live is TBC, but candidates include:
- A dedicated folder in the AzDO repo (versioned with the scripts)
- A separate config repo
- An external config store (Azure App Configuration, Key Vault, etc.)
Sensitive values (passwords, connection strings) should *never* be in the manifest file in plaintext — they should reference a secret store.
* Per-Customer App Lists
Because not all customers use all apps, the manifest is the mechanism that drives per-customer deployment. Tier 2 scripts iterate over enabled apps:
#+BEGIN_SRC powershell
foreach ($service in $manifest.WindowsServices.GetEnumerator()) {
if ($service.Value.Enabled) {
Stop-WindowsService -ServiceName $service.Key `
-ServerName $manifest.Servers.AppServer
}
}
#+END_SRC
* Environments on the Same Server
The handover document flags that some customers may have TEST and PROD on the same physical server. The manifest must account for this — likely via distinct install paths per environment and explicit environment tagging to prevent accidental cross-environment deployment.