butler Helm values reference

Helm values reference table for the butler application.

Key	Type	Default	Description
affinity	object	{}	Affinity rules for the butler deployment pod
autoscaling.enabled	bool	false	Enable autoscaling of butler deployment
autoscaling.maxReplicas	int	100	Maximum number of butler deployment pods
autoscaling.minReplicas	int	1	Minimum number of butler deployment pods
autoscaling.targetCPUUtilizationPercentage	int	80	Target CPU utilization of butler deployment pods
config.indexUri	string	""	URI to the DirectButler repository index file listing the configurations for each repository to be hosted by this server.
config.pathPrefix	string	"/api/butler"	The prefix of the path portion of the URL where the Butler service will be exposed. For example, if the service should be exposed at https://data.lsst.cloud/api/butler, this should be set to /api/butler
config.repositoryLabels	list	[]	List of Butler repository labels which will be hosted by this server, matching those from the index file.
global.baseUrl	string	Set by Argo CD	Base URL for the environment
global.host	string	Set by Argo CD	Host name for ingress
global.vaultSecretsPath	string	Set by Argo CD	Base path for Vault secrets
image.pullPolicy	string	"IfNotPresent"	Pull policy for the butler image
image.repository	string	"ghcr.io/lsst/daf_butler"	Image to use in the butler deployment
image.tag	string	""	Overrides the image tag whose default is the chart appVersion.
ingress.annotations	object	{}	Additional annotations for the ingress rule
nodeSelector	object	{}	Node selection rules for the butler deployment pod
podAnnotations	object	{}	Annotations for the butler deployment pod
replicaCount	int	1	Number of web deployment pods to start
resources	object	{}	Resource limits and requests for the butler deployment pod
tolerations	list	[]	Tolerations for the butler deployment pod