bitnamicharts/milvus

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By VMware

Updated about 22 hours ago

Bitnami Helm chart for Milvus

Helm
Image
Data Science
Databases & Storage
Machine Learning & AI

100K+

Bitnami package for Milvus

Milvus is a cloud-native, open-source vector database solution for AI applications and similarity search. Features high scalability, hibrid search and unified lambda structure.

Overview of Milvus

Trademarks: This software listing is packaged by Bitnami. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement.

TL;DR

helm install my-release oci://registry-1.docker.io/bitnamicharts/milvus

Looking to use Milvus in production? Try VMware Tanzu Application Catalog, the commercial edition of the Bitnami catalog.

Introduction

Bitnami charts for Helm are carefully engineered, actively maintained and are the quickest and easiest way to deploy containers on a Kubernetes cluster that are ready to handle production workloads.

This chart bootstraps a Milvus Deployment in a Kubernetes cluster using the Helm package manager.

Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters.

Prerequisites

  • Kubernetes 1.23+
  • Helm 3.8.0+
  • PV provisioner support in the underlying infrastructure

Installing the Chart

To install the chart with the release name my-release:

helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/milvus

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

The command deploys milvus on the Kubernetes cluster in the default configuration. The Parameters section lists the parameters that can be configured during installation.

Tip: List all releases using helm list

Configuration and installation details

Resource requests and limits

Bitnami charts allow setting resource requests and limits for all containers inside the chart deployment. These are inside the resources value (check parameter table). Setting requests is essential for production workloads and these should be adapted to your specific use case.

To make this process easier, the chart contains the resourcesPreset values, which automatically sets the resources section according to different presets. Check these presets in the bitnami/common chart. However, in production workloads using resourcesPreset is discouraged as it may not fully adapt to your specific needs. Find more information on container resource management in the official Kubernetes documentation.

Prometheus metrics

This chart can be integrated with Prometheus by setting *.metrics.enabled (under the dataCoord, dataNode, indexCoord, indexNode, proxy, queryCoord, queryNode and rootCoord sections) to true. This will expose the Milvus native Prometheus port in both the containers and services. The services will also have the necessary annotations to be automatically scraped by Prometheus.

Prometheus requirements

It is necessary to have a working installation of Prometheus or Prometheus Operator for the integration to work. Install the Bitnami Prometheus helm chart or the Bitnami Kube Prometheus helm chart to easily have a working Prometheus in your cluster.

Integration with Prometheus Operator

The chart can deploy ServiceMonitor objects for integration with Prometheus Operator installations. To do so, set the value *.metrics.serviceMonitor.enabled=true (under the dataCoord, dataNode, indexCoord, indexNode, proxy, queryCoord, queryNode and rootCoord sections). Ensure that the Prometheus Operator CustomResourceDefinitions are installed in the cluster or it will fail with the following error:

no matches for kind "ServiceMonitor" in version "monitoring.coreos.com/v1"

Install the Bitnami Kube Prometheus helm chart for having the necessary CRDs and the Prometheus Operator.

Rolling VS Immutable tags

It is strongly recommended to use immutable tags in a production environment. This ensures your deployment does not change automatically if the same tag is updated with a different image.

Bitnami will release a new chart updating its containers if a new version of the main container, significant changes, or critical vulnerabilities exist.

Milvus configuration

The Milvus configuration file milvus.yaml is shared across the different components: rootCoord, dataCoord, indexCoord, dataNode and indexNode. This is set in the milvus.defaultConfig value. This configuration can be extended with extra settings using the milvus.extraConfig value. For specific component configuration edit the extraConfig section inside each of the previously mentioned components. Check the official Milvis documentation for the list of possible configurations.

Backup and restore

To back up and restore Helm chart deployments on Kubernetes, you need to back up the persistent volumes from the source deployment and attach them to a new deployment using Velero, a Kubernetes backup/restore tool. Find the instructions for using Velero in this guide.

Additional environment variables

In case you want to add extra environment variables (useful for advanced operations like custom init scripts), you can use the extraEnvVars property inside each of the subsections: rootCoord, dataCoord, indexCoord, dataNode, indexNode, attu and queryNode.

dataCoord:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error

rootCoord:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error

indexCoord:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error

dataNode:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error

indexNode:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error

queryNode:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error

Alternatively, you can use a ConfigMap or a Secret with the environment variables. To do so, use the extraEnvVarsCM or the extraEnvVarsSecret values.

Sidecars

If additional containers are needed in the same pod as milvus (such as additional metrics or logging exporters), they can be defined using the sidecars parameter inside each of the subsections: rootCoord, dataCoord, indexCoord, dataNode, indexNode, attu and queryNode .

sidecars:
- name: your-image-name
  image: your-image
  imagePullPolicy: Always
  ports:
  - name: portname
    containerPort: 1234

If these sidecars export extra ports, extra port definitions can be added using the service.extraPorts parameter (where available), as shown in the example below:

service:
  extraPorts:
  - name: extraPort
    port: 11311
    targetPort: 11311

NOTE: This Helm chart already includes sidecar containers for the Prometheus exporters (where applicable). These can be activated by adding the --enable-metrics=true parameter at deployment time. The sidecars parameter should therefore only be used for any extra sidecar containers.

If additional init containers are needed in the same pod, they can be defined using the initContainers parameter. Here is an example:

initContainers:
  - name: your-image-name
    image: your-image
    imagePullPolicy: Always
    ports:
      - name: portname
        containerPort: 1234

Learn more about sidecar containers and init containers.

Update credentials

Bitnami charts configure credentials at first boot. Any further change in the secrets or credentials require manual intervention. Follow these instructions:

  • Update the user password following the upstream documentation
  • Update the password secret with the new values (replace the SECRET_NAME, PASSWORD and ROOT_PASSWORD placeholders)
kubectl create secret generic SECRET_NAME --from-literal=password=PASSWORD --from-literal=root-password=ROOT_PASSWORD --dry-run -o yaml | kubectl apply -f -
Pod affinity

This chart allows you to set your custom affinity using the affinity parameter. Find more information about Pod affinity in the kubernetes documentation.

As an alternative, use one of the preset configurations for pod affinity, pod anti-affinity, and node affinity available at the bitnami/common chart. To do so, set the podAffinityPreset, podAntiAffinityPreset, or nodeAffinityPreset parameters inside each of the subsections: rootCoord, dataCoord, indexCoord, dataNode, indexNode, attu and queryNode.

External kafka support

You may want to have Milvus connect to an external kafka rather than installing one inside your cluster. Typical reasons for this are to use a managed database service, or to share a common database server for all your applications. To achieve this, the chart allows you to specify credentials for an external database with the externalKafka parameter. You should also disable the etcd installation with the etcd.enabled option. Here is an example:

kafka:
  enabled: false
externalKafka:
  hosts:
    - externalhost
External etcd support

You may want to have Milvus connect to an external etcd rather than installing one inside your cluster. Typical reasons for this are to use a managed database service, or to share a common database server for all your applications. To achieve this, the chart allows you to specify credentials for an external database with the externalEtcd parameter. You should also disable the etcd installation with the etcd.enabled option. Here is an example:

etcd:
  enabled: false
externalEtcd:
  hosts:
    - externalhost
External S3 support

You may want to have Milvus connect to an external storage streaming rather than installing MiniIO(TM) inside your cluster. To achieve this, the chart allows you to specify credentials for an external storage streaming with the externalS3 parameter. You should also disable the MinIO(TM) installation with the minio.enabled option. Here is an example:

minio.enabled=false
externalS3.host=myexternalhost
externalS3.accessKeyID=accesskey
externalS3.accessKeySecret=secret
Ingress

This chart provides support for Ingress resources. If you have an ingress controller installed on your cluster, such as nginx-ingress-controller or contour you can utilize the ingress controller to serve your application.To enable Ingress integration, set attu.ingress.enabled to true.

The most common scenario is to have one host name mapped to the deployment. In this case, the attu.ingress.hostname property can be used to set the host name. The attu.ingress.tls parameter can be used to add the TLS configuration for this host.

However, it is also possible to have more than one host. To facilitate this, the attu.ingress.extraHosts parameter (if available) can be set with the host names specified as an array. The attu.ingress.extraTLS parameter (if available) can also be used to add the TLS configuration for extra hosts.

NOTE: For each host specified in the attu.ingress.extraHosts parameter, it is necessary to set a name, path, and any annotations that the Ingress controller should know about. Not all annotations are supported by all Ingress controllers, but this annotation reference document lists the annotations supported by many popular Ingress controllers.

Adding the TLS parameter (where available) will cause the chart to generate HTTPS URLs, and the application will be available on port 443. The actual TLS secrets do not have to be generated by this chart. However, if TLS is enabled, the Ingress record will not work until the TLS secret exists.

Learn more about Ingress controllers.

Securing traffic using TLS

This chart facilitates the creation of TLS secrets for use with the Ingress controller (although this is not mandatory). There are several common use cases:

  • Generate certificate secrets based on chart parameters.
  • Enable externally generated certificates.
  • Manage application certificates via an external service (like cert-manager).
  • Create self-signed certificates within the chart (if supported).

In the first two cases, a certificate and a key are needed. Files are expected in .pem format.

Here is an example of a certificate file:

NOTE: There may be more than one certificate if there is a certificate chain.

-----BEGIN CERTIFICATE-----
MIID6TCCAtGgAwIBAgIJAIaCwivkeB5EMA0GCSqGSIb3DQEBCwUAMFYxCzAJBgNV
...
jScrvkiBO65F46KioCL9h5tDvomdU1aqpI/CBzhvZn1c0ZTf87tGQR8NK7v7
-----END CERTIFICATE-----

Here is an example of a certificate key:

-----BEGIN RSA PRIVATE KEY-----
MIIEogIBAAKCAQEAvLYcyu8f3skuRyUgeeNpeDvYBCDcgq+LsWap6zbX5f8oLqp4
...
wrj2wDbCDCFmfqnSJ+dKI3vFLlEz44sAV8jX/kd4Y6ZTQhlLbYc=
-----END RSA PRIVATE KEY-----
  • If using Helm to manage the certificates based on the parameters, copy these values into the certificate and key values for a given *.ingress.secrets entry.
  • If managing TLS secrets separately, it is necessary to create a TLS secret with name INGRESS_HOSTNAME-tls (where INGRESS_HOSTNAME is a placeholder to be replaced with the hostname you set using the *.ingress.hostname parameter).
  • If your cluster has a cert-manager add-on to automate the management and issuance of TLS certificates, add to *.ingress.annotations the corresponding ones for cert-manager.
  • If using self-signed certificates created by Helm, set both *.ingress.tls and *.ingress.selfSigned to true.

Parameters

Global parameters
NameDescriptionValue
global.imageRegistryGlobal Docker image registry""
global.imagePullSecretsGlobal Docker registry secret names as an array[]
global.defaultStorageClassGlobal default StorageClass for Persistent Volume(s)""
global.security.allowInsecureImagesAllows skipping image verificationfalse
global.compatibility.openshift.adaptSecurityContextAdapt the securityContext sections of the deployment to make them compatible with Openshift restricted-v2 SCC: remove runAsUser, runAsGroup and fsGroup and let the platform use their allowed default IDs. Possible values: auto (apply if the detected running cluster is Openshift), force (perform the adaptation always), disabled (do not perform adaptation)auto
Common parameters
NameDescriptionValue
kubeVersionOverride Kubernetes version""
nameOverrideString to partially override common.names.fullname""
fullnameOverrideString to fully override common.names.fullname""
commonLabelsLabels to add to all deployed objects{}
commonAnnotationsAnnotations to add to all deployed objects{}
clusterDomainKubernetes cluster domain namecluster.local
extraDeployArray of extra objects to deploy with the release[]
enableServiceLinksWhether information about services should be injected into all pods' environment variablefalse
diagnosticMode.enabledEnable diagnostic mode (all probes will be disabled and the command will be overridden)false
diagnosticMode.commandCommand to override all containers in the deployments/statefulsets["sleep"]
diagnosticMode.argsArgs to override all containers in the deployments/statefulsets["infinity"]
Common Milvus Parameters
NameDescriptionValue
milvus.image.registryMilvus image registryREGISTRY_NAME
milvus.image.repositoryMilvus image repositoryREPOSITORY_NAME/milvus
milvus.image.digestMilvus image digest in the way sha256:aa.... Please note this parameter, if set, will override the tag""
milvus.image.pullPolicyMilvus image pull policyIfNotPresent
milvus.image.pullSecretsMilvus image pull secrets[]
milvus.image.debugEnable debug modefalse
milvus.auth.enabledenable Milvus authenticationfalse
milvus.auth.usernameMilvus usernameuser
milvus.auth.passwordMilvus username password""
milvus.auth.rootPasswordMilvus root password""
milvus.auth.existingSecretName of a secret containing the Milvus password""
milvus.auth.existingSecretPasswordKeyName of the secret key containing the Milvus password""
milvus.defaultConfigMilvus components default configuration""
milvus.extraConfigExtra configuration parameters{}
milvus.existingConfigMapname of a ConfigMap with existing configuration for the default configuration""
milvus.extraConfigExistingConfigMapname of a ConfigMap with existing configuration for the Dashboard""
initJob.forceRunForce the run of the credential jobfalse
initJob.image.registryPyMilvus image registryREGISTRY_NAME
initJob.image.repositoryPyMilvus image repository

Note: the README for this chart is longer than the DockerHub length limit of 25000, so it has been trimmed. The full README can be found at https://github.com/bitnami/charts/blob/main/bitnami/milvus/README.md

Docker Pull Command

docker pull bitnamicharts/milvus
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