MCPServer v1alpha1 — toolhive.stacklok.dev

audit object

Audit defines audit logging configuration for the MCP server

enabled boolean

Enabled controls whether audit logging is enabled When true, enables audit logging with default configuration

authServerRef object

AuthServerRef optionally references a resource that configures an embedded OAuth 2.0/OIDC authorization server to authenticate MCP clients. Currently the only supported kind is MCPExternalAuthConfig (type: embeddedAuthServer).

kind string required

Kind identifies the type of the referenced resource.

enum: MCPExternalAuthConfig

name string required

Name is the name of the referenced resource in the same namespace.

minLength: 1

authzConfig object

AuthzConfig defines authorization policy configuration for the MCP server. AuthzConfig and AuthzConfigRef are mutually exclusive.

configMap object

ConfigMap references a ConfigMap containing authorization configuration Only used when Type is "configMap"

key string

Key is the key in the ConfigMap that contains the authorization configuration

name string required

Name is the name of the ConfigMap

groupClaimName string

GroupClaimName is the JWT claim key that contains group membership for the principal. When set, takes priority over the well-known defaults ("groups", "roles", "cognito:groups"). Use this for IDPs that place groups under a URI-style claim (e.g. "https://example.com/groups"). When Type is "configMap", a group_claim_name entry in the referenced ConfigMap is overridden by this field if both are set.

maxLength: 253

groupEntityType string

GroupEntityType is the Cedar entity type name used for principal parent UIDs synthesised from JWT group/role claims. Defaults to "THVGroup" when empty. Must match the entity type used in the static entity store for transitive `in` checks (e.g. `ClaimGroup → PlatformRole`) to resolve. Namespaced names (`Foo::Bar`) are not yet supported. When Type is "configMap", a group_entity_type entry in the referenced ConfigMap is overridden by this field if both are set.

pattern: ^[A-Za-z_][A-Za-z0-9_]*$

maxLength: 63

inline object

Inline contains direct authorization configuration Only used when Type is "inline"

entitiesJson string

EntitiesJSON is a JSON string representing Cedar entities. Required when transitive policies (e.g. `ClaimGroup → PlatformRole`) need a static entity store; defaults to "[]".

policies []string required

Policies is a list of Cedar policy strings

minItems: 1

primaryUpstreamProvider string

PrimaryUpstreamProvider names the upstream IDP whose access token's claims Cedar should evaluate. Deprecated: on VirtualMCPServer this field has moved to spec.authServerConfig.primaryUpstreamProvider. The old location is still read for one release for backward compatibility; the VirtualMCPServer controller emits an AuthzPrimaryUpstreamProviderDeprecated Warning event whenever it is consumed, and removal is planned for the release after the deprecation cycle. On MCPServer and MCPRemoteProxy this field has always been a structural no-op (those CRDs do not run an embedded auth server). Setting it continues to surface the AuthzPrimaryUpstreamProviderIgnored advisory condition; the deprecation does not change that behaviour.

pattern: ^[a-z0-9]([a-z0-9-]*[a-z0-9])?$

minLength: 1

maxLength: 63

roleClaimName string

RoleClaimName is the JWT claim key that contains role membership for the principal. When set, the claim is extracted separately from GroupClaimName and both are mapped to the configured GroupEntityType. When Type is "configMap", a role_claim_name entry in the referenced ConfigMap is overridden by this field if both are set.

maxLength: 253

type string required

Type is the type of authorization configuration

enum: configMap, inline

authzConfigRef object

AuthzConfigRef references a shared MCPAuthzConfig resource for authorization. The referenced MCPAuthzConfig must exist in the same namespace as this MCPServer. Mutually exclusive with authzConfig.

name string required

Name is the name of the MCPAuthzConfig resource in the same namespace.

minLength: 1

env []object

Env are environment variables to set in the MCP server container

name string required

Name of the environment variable

value string required

Value of the environment variable

externalAuthConfigRef object

ExternalAuthConfigRef references a MCPExternalAuthConfig resource for external authentication. The referenced MCPExternalAuthConfig must exist in the same namespace as this MCPServer.

name string required

Name is the name of the MCPExternalAuthConfig resource

groupRef object

GroupRef references the MCPGroup this server belongs to. The referenced MCPGroup must be in the same namespace.

name string required

Name is the name of the MCPGroup resource in the same namespace

minLength: 1

oidcConfigRef object

OIDCConfigRef references a shared MCPOIDCConfig resource for OIDC authentication. The referenced MCPOIDCConfig must exist in the same namespace as this MCPServer. Per-server overrides (audience, scopes) are specified here; shared provider config lives in the MCPOIDCConfig resource. SECURITY: if this field is omitted and no other authentication source is configured, the proxy runs UNAUTHENTICATED. It accepts every request that can reach its port and forwards it to the MCP server under a synthetic local-user identity, with no token or credential check. Set this field to enforce identity-based access control per request.

audience string required

Audience is the expected audience for token validation. This MUST be unique per server to prevent token replay attacks.

minLength: 1

name string required

Name is the name of the MCPOIDCConfig resource

minLength: 1

resourceUrl string

ResourceURL is the public URL for OAuth protected resource metadata (RFC 9728). When the server is exposed via Ingress or gateway, set this to the external URL that MCP clients connect to. If not specified, defaults to the internal Kubernetes service URL.

scopes []string

Scopes is the list of OAuth scopes to advertise in the well-known endpoint (RFC 9728). If empty, defaults to ["openid"].

permissionProfile object

PermissionProfile defines the permission profile to use

key string

Key is the key in the ConfigMap that contains the permission profile Only used when Type is "configmap"

name string required

Name is the name of the permission profile If Type is "builtin", Name must be one of: "none", "network" If Type is "configmap", Name is the name of the ConfigMap

type string required

Type is the type of permission profile reference

enum: builtin, configmap

rateLimiting object

RateLimiting defines rate limiting configuration for the MCP server. Requires Redis session storage to be configured for distributed rate limiting.

perUser object

PerUser is a token bucket applied independently to each authenticated user at the server level. Requires authentication to be enabled. Each unique userID creates Redis keys that expire after 2x refillPeriod. Memory formula: unique_users_per_TTL_window * (1 + num_tools_with_per_user_limits) keys.

maxTokens integer required

MaxTokens is the maximum number of tokens (bucket capacity). This is also the burst size: the maximum number of requests that can be served instantaneously before the bucket is depleted.

format: int32

minimum: 1

refillPeriod string required

RefillPeriod is the duration to fully refill the bucket from zero to maxTokens. The effective refill rate is maxTokens / refillPeriod tokens per second. Format: Go duration string (e.g., "1m0s", "30s", "1h0m0s").

shared object

Shared is a token bucket shared across all users for the entire server.

maxTokens integer required

MaxTokens is the maximum number of tokens (bucket capacity). This is also the burst size: the maximum number of requests that can be served instantaneously before the bucket is depleted.

format: int32

minimum: 1

refillPeriod string required

RefillPeriod is the duration to fully refill the bucket from zero to maxTokens. The effective refill rate is maxTokens / refillPeriod tokens per second. Format: Go duration string (e.g., "1m0s", "30s", "1h0m0s").

tools []object

Tools defines per-tool rate limit overrides. Each entry applies additional rate limits to calls targeting a specific tool name. A request must pass both the server-level limit and the per-tool limit.

name string required

Name is the MCP tool name this limit applies to.

minLength: 1

perUser object

PerUser token bucket configuration for this tool.

maxTokens integer required

MaxTokens is the maximum number of tokens (bucket capacity). This is also the burst size: the maximum number of requests that can be served instantaneously before the bucket is depleted.

format: int32

minimum: 1

refillPeriod string required

RefillPeriod is the duration to fully refill the bucket from zero to maxTokens. The effective refill rate is maxTokens / refillPeriod tokens per second. Format: Go duration string (e.g., "1m0s", "30s", "1h0m0s").

shared object

Shared token bucket for this specific tool.

maxTokens integer required

MaxTokens is the maximum number of tokens (bucket capacity). This is also the burst size: the maximum number of requests that can be served instantaneously before the bucket is depleted.

format: int32

minimum: 1

refillPeriod string required

RefillPeriod is the duration to fully refill the bucket from zero to maxTokens. The effective refill rate is maxTokens / refillPeriod tokens per second. Format: Go duration string (e.g., "1m0s", "30s", "1h0m0s").

resourceOverrides object

ResourceOverrides allows overriding annotations and labels for resources created by the operator

proxyDeployment object

ProxyDeployment defines overrides for the Proxy Deployment resource (toolhive proxy)

affinity object

Affinity sets node/pod affinity and anti-affinity for the proxy pod. On MCPRemoteProxy, spec.podTemplateSpec also reaches the proxy pod: the two are merged per sub-field, and podTemplateSpec wins on sub-fields set in both.

nodeAffinity object

Describes node affinity scheduling rules for the pod.

preferredDuringSchedulingIgnoredDuringExecution []object

The scheduler will prefer to schedule pods to nodes that satisfy the affinity expressions specified by this field, but it may choose a node that violates one or more of the expressions. The node that is most preferred is the one with the greatest sum of weights, i.e. for each node that meets all of the scheduling requirements (resource request, requiredDuringScheduling affinity expressions, etc.), compute a sum by iterating through the elements of this field and adding "weight" to the sum if the node matches the corresponding matchExpressions; the node(s) with the highest sum are the most preferred.

preference object required

A node selector term, associated with the corresponding weight.

matchExpressions []object

A list of node selector requirements by node's labels.

key string required

The label key that the selector applies to.

operator string required

Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.

values []string

An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch.

matchFields []object

A list of node selector requirements by node's fields.

key string required

The label key that the selector applies to.

operator string required

Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.

values []string

An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch.

weight integer required

Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100.

format: int32

requiredDuringSchedulingIgnoredDuringExecution object

If the affinity requirements specified by this field are not met at scheduling time, the pod will not be scheduled onto the node. If the affinity requirements specified by this field cease to be met at some point during pod execution (e.g. due to an update), the system may or may not try to eventually evict the pod from its node.

nodeSelectorTerms []object required

Required. A list of node selector terms. The terms are ORed.

matchExpressions []object

A list of node selector requirements by node's labels.

key string required

The label key that the selector applies to.

operator string required

Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.

values []string

An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch.

matchFields []object

A list of node selector requirements by node's fields.

key string required

The label key that the selector applies to.

operator string required

Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.

values []string

An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch.

podAffinity object

Describes pod affinity scheduling rules (e.g. co-locate this pod in the same node, zone, etc. as some other pod(s)).

preferredDuringSchedulingIgnoredDuringExecution []object

The scheduler will prefer to schedule pods to nodes that satisfy the affinity expressions specified by this field, but it may choose a node that violates one or more of the expressions. The node that is most preferred is the one with the greatest sum of weights, i.e. for each node that meets all of the scheduling requirements (resource request, requiredDuringScheduling affinity expressions, etc.), compute a sum by iterating through the elements of this field and adding "weight" to the sum if the node has pods which matches the corresponding podAffinityTerm; the node(s) with the highest sum are the most preferred.

podAffinityTerm object required

Required. A pod affinity term, associated with the corresponding weight.

labelSelector object

A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

matchLabelKeys []string

MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set.

mismatchLabelKeys []string

MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set.

namespaceSelector object

A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

namespaces []string

namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace".

topologyKey string required

This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed.

weight integer required

weight associated with matching the corresponding podAffinityTerm, in the range 1-100.

format: int32

requiredDuringSchedulingIgnoredDuringExecution []object

If the affinity requirements specified by this field are not met at scheduling time, the pod will not be scheduled onto the node. If the affinity requirements specified by this field cease to be met at some point during pod execution (e.g. due to a pod label update), the system may or may not try to eventually evict the pod from its node. When there are multiple elements, the lists of nodes corresponding to each podAffinityTerm are intersected, i.e. all terms must be satisfied.

labelSelector object

A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

matchLabelKeys []string

MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set.

mismatchLabelKeys []string

MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set.

namespaceSelector object

A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

namespaces []string

namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace".

topologyKey string required

This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed.

podAntiAffinity object

Describes pod anti-affinity scheduling rules (e.g. avoid putting this pod in the same node, zone, etc. as some other pod(s)).

preferredDuringSchedulingIgnoredDuringExecution []object

The scheduler will prefer to schedule pods to nodes that satisfy the anti-affinity expressions specified by this field, but it may choose a node that violates one or more of the expressions. The node that is most preferred is the one with the greatest sum of weights, i.e. for each node that meets all of the scheduling requirements (resource request, requiredDuringScheduling anti-affinity expressions, etc.), compute a sum by iterating through the elements of this field and subtracting "weight" from the sum if the node has pods which matches the corresponding podAffinityTerm; the node(s) with the highest sum are the most preferred.

podAffinityTerm object required

Required. A pod affinity term, associated with the corresponding weight.

labelSelector object

A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

matchLabelKeys []string

MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set.

mismatchLabelKeys []string

MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set.

namespaceSelector object

A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

namespaces []string

namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace".

topologyKey string required

This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed.

weight integer required

weight associated with matching the corresponding podAffinityTerm, in the range 1-100.

format: int32

requiredDuringSchedulingIgnoredDuringExecution []object

If the anti-affinity requirements specified by this field are not met at scheduling time, the pod will not be scheduled onto the node. If the anti-affinity requirements specified by this field cease to be met at some point during pod execution (e.g. due to a pod label update), the system may or may not try to eventually evict the pod from its node. When there are multiple elements, the lists of nodes corresponding to each podAffinityTerm are intersected, i.e. all terms must be satisfied.

labelSelector object

A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

matchLabelKeys []string

MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set.

mismatchLabelKeys []string

MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set.

namespaceSelector object

A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces.

matchExpressions []object

matchExpressions is a list of label selector requirements. The requirements are ANDed.

key string required

key is the label key that the selector applies to.

operator string required

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values []string

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

matchLabels object

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

namespaces []string

namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace".

topologyKey string required

This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed.

annotations object

Annotations to add or override on the resource

env []object

Env are environment variables to set in the proxy container (thv run process) These affect the toolhive proxy itself, not the MCP server it manages Use TOOLHIVE_DEBUG=true to enable debug logging in the proxy

name string required

Name of the environment variable

value string required

Value of the environment variable

imagePullSecrets []object

ImagePullSecrets allows specifying image pull secrets for the proxy runner These are applied to both the Deployment and the ServiceAccount

name string

Name of the referent. This field is effectively required, but due to backwards compatibility is allowed to be empty. Instances of this type with an empty value here are almost certainly wrong. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names

labels object

Labels to add or override on the resource

nodeSelector object

NodeSelector constrains the proxy pod to nodes with matching labels. Mirrors the scheduling control podTemplateSpec gives the MCP server pod, so the proxy can be steered onto the same nodes (e.g. a pre-warmed pool). On MCPRemoteProxy, spec.podTemplateSpec also reaches the proxy pod: the two maps are merged, and podTemplateSpec wins on keys set in both.

podTemplateMetadataOverrides object

ResourceMetadataOverrides defines metadata overrides for a resource

annotations object

Annotations to add or override on the resource

labels object

Labels to add or override on the resource

tolerations []object

Tolerations allow the proxy pod to schedule onto tainted nodes, such as a dedicated pre-warmed pool. On MCPRemoteProxy, spec.podTemplateSpec also reaches the proxy pod, and this list is atomic: a podTemplateSpec that sets tolerations replaces this field rather than adding to it.

effect string

Effect indicates the taint effect to match. Empty means match all taint effects. When specified, allowed values are NoSchedule, PreferNoSchedule and NoExecute.

key string

Key is the taint key that the toleration applies to. Empty means match all taint keys. If the key is empty, operator must be Exists; this combination means to match all values and all keys.

operator string

Operator represents a key's relationship to the value. Valid operators are Exists, Equal, Lt, and Gt. Defaults to Equal. Exists is equivalent to wildcard for value, so that a pod can tolerate all taints of a particular category. Lt and Gt perform numeric comparisons (requires feature gate TaintTolerationComparisonOperators).

tolerationSeconds integer

TolerationSeconds represents the period of time the toleration (which must be of effect NoExecute, otherwise this field is ignored) tolerates the taint. By default, it is not set, which means tolerate the taint forever (do not evict). Zero and negative values will be treated as 0 (evict immediately) by the system.

format: int64

value string

Value is the taint value the toleration matches to. If the operator is Exists, the value should be empty, otherwise just a regular string.

proxyService object

ProxyService defines overrides for the Proxy Service resource (points to the proxy deployment)

annotations object

Annotations to add or override on the resource

labels object

Labels to add or override on the resource

resources object

Resources defines the resource requirements for the MCP server container

limits object

Limits describes the maximum amount of compute resources allowed

cpu string

CPU is the CPU limit in cores (e.g., "500m" for 0.5 cores)

memory string

Memory is the memory limit in bytes (e.g., "64Mi" for 64 megabytes)

requests object

Requests describes the minimum amount of compute resources required

cpu string

CPU is the CPU limit in cores (e.g., "500m" for 0.5 cores)

memory string

Memory is the memory limit in bytes (e.g., "64Mi" for 64 megabytes)

secrets []object

Secrets are references to secrets to mount in the MCP server container

key string required

Key is the key in the secret itself

name string required

Name is the name of the secret

targetEnvName string

TargetEnvName is the environment variable to be used when setting up the secret in the MCP server If left unspecified, it defaults to the key

sessionStorage object

SessionStorage configures session storage for stateful horizontal scaling. When nil, no session storage is configured.

address string

Address is the Redis server address (required when provider is redis)

minLength: 1

db integer

DB is the Redis database number

format: int32

minimum: 0

keyPrefix string

KeyPrefix is an optional prefix for all Redis keys used by ToolHive

passwordRef object

PasswordRef is a reference to a Secret key containing the Redis password

key string required

Key is the key within the secret

name string required

Name is the name of the secret

provider string required

Provider is the session storage backend type

enum: memory, redis

telemetryConfigRef object

TelemetryConfigRef references an MCPTelemetryConfig resource for shared telemetry configuration. The referenced MCPTelemetryConfig must exist in the same namespace as this MCPServer. Cross-namespace references are not supported for security and isolation reasons.

name string required

Name is the name of the MCPTelemetryConfig resource

minLength: 1

serviceName string

ServiceName overrides the telemetry service name for this specific server. This MUST be unique per server for proper observability (e.g., distinguishing traces and metrics from different servers sharing the same collector). If empty, defaults to the server name with "thv-" prefix at runtime.

toolConfigRef object

ToolConfigRef references a MCPToolConfig resource for tool filtering and renaming. The referenced MCPToolConfig must exist in the same namespace as this MCPServer. Cross-namespace references are not supported for security and isolation reasons.

name string required

Name is the name of the MCPToolConfig resource in the same namespace

volumes []object

Volumes are volumes to mount in the MCP server container

hostPath string required

HostPath is the path on the host to mount

mountPath string required

MountPath is the path in the container to mount to

name string required

Name is the name of the volume

readOnly boolean

ReadOnly specifies whether the volume should be mounted read-only

webhookConfigRef object

WebhookConfigRef references a MCPWebhookConfig resource for webhook middleware configuration. The referenced MCPWebhookConfig must exist in the same namespace as this MCPServer.

name string required

Name is the name of the MCPWebhookConfig resource