jochen
6ec4139871
Making every soft dependency a provision made it hard: a mesh without influxdb could not assign
grafana, and one with influxdb in its catalogue would install it for grafana. A requirement may now
be written {"name": ..., "optional": true}. It resolves as a hard one when a provider is assigned or
reachable, and is otherwise absent: never refused, nothing installed for it. Its binding, credential
and only-when-bound files are left out, its ${bound:...|default:...} placeholders take their
defaults, the module check refuses one that could render empty, and plan and node list it unbound.
22 lines
835 B
Go
22 lines
835 B
Go
package main
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import (
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"fmt"
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"github.com/novox/mesh-controller/internal/catalogue"
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)
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// unboundLines say which optional requirements of a machine's modules nothing assigned answers
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// (novox/hq ADR 0330 §7): left unbound rather than refused, with nothing installed for them, so the
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// module runs without — and said, because a data source that never appears is otherwise a silence.
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// Each binds without anybody's act on the first composition after a provider is assigned.
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func unboundLines(plan catalogue.Resolution) []string {
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lines := make([]string, 0, len(plan.Absent))
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for _, a := range plan.Absent {
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lines = append(lines, fmt.Sprintf(
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" unbound %s, optional for %s — nothing assigned provides it; it binds once a provider is "+
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"assigned (novox/hq ADR 0330)", a.Requirement, a.Consumer))
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}
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return lines
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}
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