Control Plane

Mount Volumeset to Workload

mount_volumeset_to_workload

Idempotent

Attach a volumeset to a workload by adding a mount to its FIRST container. Additive: existing mounts and stored data stay as they are, a mount path already in use is refused, and a read-write-once volumeset another workload uses is refused; the workload rolls out again to pick up the mount. Creates the volumeset when missing; size/fileSystemType/performanceClass apply ONLY on that create path and are ignored when the volumeset already exists. Workload-type rule: ext4/xfs (read-write-once) volumesets require a stateful or vm workload and bind to ONE workload; shared-filesystem volumesets mount on any workload type.

Input Schema

Name	Required	Description
`gvc`	Yes	GVC name.
`org`	No	Organization slug.
`size`	No	Initial capacity in GB, CREATE-ONLY (ignored when the volumeset already exists; run_volumeset_command expandVolume grows it). Required when creating. Min 10 (200 for high-throughput-ssd), max 65536.
`tags`	No	Optional tags for the volumeset; use them like Kubernetes labels for governance and search.
`mountPath`	No	Mount path inside the container (defaults to /mnt/{volumesetName}). Normalized before validation (".." resolved, "//" collapsed); reserved paths /dev, /dev/log, /tmp, /var, /var/log are rejected.
`description`	No	Volumeset description so operators know what data lives here (treat it like a Kubernetes annotation).
`workloadName`	Yes	Existing workload name to mount storage into; pass the name only, not a link.
`volumesetName`	No	Optional volumeset resource name, not a link. Omit to use {workloadName}-vol. If this volumeset does not exist yet, `size` is required so the tool can create it before mounting.
`fileSystemType`	No	File system type — CREATE-ONLY (ignored when the volumeset already exists); default xfs. ext4/xfs are read-write-once (stateful or vm workloads only); shared is read-write-many (any workload type).
`performanceClass`	No	Performance class — CREATE-ONLY (ignored when the volumeset already exists); default general-purpose-ssd. high-throughput-ssd requires size ≥ 200; shared pairs only with fileSystemType shared.

Output Schema

Name	Required	Description
`ok`	Yes
`data`	No	The full result. Read this, not only the summary.
`details`	No
`summary`	Yes
`nextSteps`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 28, 2026

removedInput schema / properties / recoveryPolicy

Removed value: -{
-  "description": "What a NEW replica does when a matching volume already exists: \"retain\" (default) reuses the data, \"recycle\" starts fresh (schema/volumeSpec recoveryPolicy).",
-  "enum": [
-    "retain",
-    "recycle"
-  ],
-  "type": "string"
-}

Changed2 schema fields changedOct 22, 2026

changedInput schema / properties / gvc / description

Previous value: -"GVC slug. If the user named none, list_resources (kind \"gvc\") and let them choose."New value: +"GVC name."

changedInput schema / properties / size / description

Previous value: -"Initial capacity in GB — CREATE-ONLY (ignored when the volumeset already exists; expand_volumeset grows it). Required when creating. Min 10 (200 for high-throughput-ssd), max 65536."New value: +"Initial capacity in GB, CREATE-ONLY (ignored when the volumeset already exists; run_volumeset_command expandVolume grows it). Required when creating. Min 10 (200 for high-throughput-ssd), max 65536."

Changed29 schema fields changedSep 30, 2026

removedInput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedInput schema / additionalProperties
```
Removed value: -false
```
removedInput schema / properties / description / maxLength
```
Removed value: -250
```

changedInput schema / properties / gvc / description

Previous value: -"GVC slug (lowercase kebab-case). Use the GVC the user named; otherwise discover with list_resources (kind=\"gvc\") and let them choose — never guess (a wrong GVC targets the wrong environment)."New value: +"GVC slug. If the user named none, list_resources (kind \"gvc\") and let them choose."

removedInput schema / properties / gvc / maxLength
```
Removed value: -63
```
removedInput schema / properties / gvc / minLength
```
Removed value: -1
```

removedInput schema / properties / gvc / pattern

Removed value: -"^[a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?$"

removedInput schema / properties / mountPath / minLength
```
Removed value: -1
```

changedInput schema / properties / org / description

Previous value: -"Organization slug (lowercase kebab-case). NEVER guess — if the user has not named one, ask. On org-not-found, stop and ask; do not retry variants."New value: +"Organization slug."

removedInput schema / properties / org / maxLength
```
Removed value: -63
```
removedInput schema / properties / org / minLength
```
Removed value: -1
```

removedInput schema / properties / org / pattern

Removed value: -"^[a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?$"

removedInput schema / properties / tags / items / additionalProperties
```
Removed value: -false
```
removedInput schema / properties / tags / items / properties / key / minLength
```
Removed value: -1
```
removedInput schema / properties / tags / maxItems
```
Removed value: -50
```
removedInput schema / properties / volumesetName / maxLength
```
Removed value: -64
```
removedInput schema / properties / volumesetName / minLength
```
Removed value: -2
```
removedInput schema / properties / volumesetName / pattern
```
Removed value: -"^[a-z]([-a-z0-9])*[a-z0-9]$"
```
removedInput schema / properties / workloadName / maxLength
```
Removed value: -64
```
removedInput schema / properties / workloadName / minLength
```
Removed value: -2
```
removedInput schema / properties / workloadName / pattern
```
Removed value: -"^[a-z]([-a-z0-9])*[a-z0-9]$"
```

changedInput schema / required

Previous value: -[
-  "org",
-  "gvc",
-  "workloadName"
-]New value: +[
+  "gvc",
+  "workloadName"
+]

removedOutput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedOutput schema / additionalProperties
```
Removed value: -false
```

changedOutput schema / properties / data / description

Previous value: -"The full machine-readable result — list rows, the resource object, query results. Read THIS, not just the summary."New value: +"The full result. Read this, not only the summary."

addedOutput schema / properties / details
```
Added value: +{
+  "type": "string"
+}
```

removedOutput schema / properties / nextSteps / description

Removed value: -"Recommended follow-up actions for this task, in order."

removedOutput schema / properties / ok / description
```
Removed value: -"Whether the call succeeded."
```
removedOutput schema / properties / summary / description
```
Removed value: -"One-line summary of the result."
```

First observedJun 28, 2026

TDQS

Score is being calculated.

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