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wdconinc merged 2 commits into from
Dec 30, 2025
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docs: update architecture diagram for three-track build structure #116

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docs: update architecture.md mermaid diagram for three-track build
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29 changes: 15 additions & 14 deletions docs/architecture.md
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Expand Up @@ -4,29 +4,30 @@ The EIC container infrastructure uses a multi-stage build approach with separate

## Build Strategy

The container build follows a two-track approach:
The container build follows a three-track approach:

```mermaid
flowchart TB
subgraph "Builder Track"
subgraph "Builder Concretization Track"
A[builder_image<br/>debian_stable_base] --> B[builder_concretization_default<br/>Concretize spack environment]
B --> C[builder_installation_default<br/>Build packages]
C --> D[builder_concretization_custom<br/>Concretize custom versions]
D --> E[builder_installation_custom<br/>Build custom packages]
B --> C[builder_concretization_custom<br/>Concretize custom versions]
end

subgraph "Builder Installation Track"
B --> D[builder_installation_default<br/>Build packages]
C --> E[builder_installation_custom<br/>Build custom packages]
end

subgraph "Runtime Track"
F[runtime_image<br/>debian_stable_base] --> G[runtime_concretization_default<br/>Copy spack.lock from builder]
G --> H[runtime_installation_default<br/>Install from buildcache]
H --> I[runtime_concretization_custom<br/>Copy custom spack.lock]
I --> J[runtime_installation_custom<br/>Install custom from buildcache]
J --> K[Final Image<br/>eic_ci / eic_xl]
F[runtime_image<br/>debian_stable_base] --> G[runtime_default<br/>Copy spack.lock, install from buildcache]
G --> H[runtime_custom<br/>Copy custom spack.lock, install from buildcache]
H --> K[Final Image<br/>eic_ci / eic_xl]
end

C -.->|spack.lock| G
C -.->|buildcache| H
E -.->|spack.lock| I
E -.->|buildcache| J
D -.->|spack.lock| G
D -.->|buildcache| G
E -.->|spack.lock| H
E -.->|buildcache| H
```

## Multi-Architecture Support
Expand Down