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AppsCode
  • KubeDB

    Run Production-Grade Databases on Kubernetes

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    Stash

    Backup and Recovery Solution for Kubernetes

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    KubeVault

    Run Production-Grade Vault on Kubernetes

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    Voyager

    Secure HAProxy Ingress Controller for Kubernetes

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    ConfigSyncer

    Kubernetes Configuration Syncer

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    Guard

    Kubernetes Authentication WebHook Server

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    KubeDB

    KubeDB simplifies Provision, Upgrade, Scaling, Volume Expansion, Monitor, Backup, Restore for various Databases in Kubernetes on any Public & Private Cloud

    • task_altLower administrative burden
    • task_altNative Kubernetes Support
    • task_altPerformance
    • task_altAvailability and durability
    • task_altManageability
    • task_altCost-effectiveness
    • task_altSecurity
    Stash

    A complete Kubernetes native disaster recovery solution for backup and restore your volumes and databases in Kubernetes on any public and private clouds.

    • task_altDeclarative API
    • task_altBackup Kubernetes Volumes
    • task_altBackup Database
    • task_altMultiple Storage Support
    • task_altDeduplication
    • task_altData Encryption
    • task_altVolume Snapshot
    • task_altPolicy Based Backup
    KubeVault

    KubeVault is a Git-Ops ready, production-grade solution for deploying and configuring Hashicorp's Vault on Kubernetes.

    • task_altVault Kubernetes Deployment
    • task_altAuto Initialization & Unsealing
    • task_altVault Backup & Restore
    • task_altConsume KubeVault Secrets with CSI
    • task_altManage DB Users Privileges
    • task_altStorage Backend
    • task_altAuthentication Method
    • task_altDatabase Secret Engine
    Voyager

    Secure HAProxy Ingress Controller for Kubernetes

    • task_altHTTP & TCP
    • task_altSSL
    • task_altPlatform support
    • task_altHAProxy
    • task_altPrometheus
    • task_altLet's Encrypt
    configsyncer

    Kubernetes Configuration Syncer

    • task_altConfiguration Syncer
    Guard

    Kubernetes Authentication WebHook Server

    • task_altIdentity Providers
    • task_altCLI
    • task_altRBAC
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You are looking at the documentation of a prior release. To read the documentation of the latest release, please visit here.

New to KubeDB? Please start here.

Memcached

What is Memcached

Memcached is a Kubernetes Custom Resource Definitions (CRD). It provides declarative configuration for Memcached in a Kubernetes native way. You only need to describe the desired database configuration in a Memcached object, and the KubeDB operator will create Kubernetes objects in the desired state for you.

Memcached Spec

As with all other Kubernetes objects, a Memcached needs apiVersion, kind, and metadata fields. It also needs a .spec section. Below is an example of a Memcached object.

apiVersion: kubedb.com/v1alpha1
kind: Memcached
metadata:
  name: mc1
  namespace: demo
spec:
  replicas: 3
  version: 1.5.3-alpine
  nodeSelector:
    disktype: ssd
  doNotPause: true
  monitor:
    agent: coreos-prometheus-operator
    prometheus:
      namespace: demo
      labels:
        app: kubedb
      interval: 10s
  resources:
    requests:
      memory: "64Mi"
      cpu: "250m"
    limits:
      memory: "128Mi"
      cpu: "500m"

spec.replicas

spec.replicas is an optional field that specifies the number of desired Instances/Replicas of Memcached database. If you do not specify .spec.replicas, then it defaults to 1.

spec.version

spec.version is a required field specifying the version of Memcached database. Here the database version is 1.5.3-alpine.

spec.nodeSelector

spec.nodeSelector is an optional field that specifies a map of key-value pairs. For the pod to be eligible to run on a node, the node must have each of the indicated key-value pairs as labels (it can have additional labels as well). To learn more, see here .

spec.doNotPause

spec.doNotPause is an optional field that tells KubeDB operator that if this Memcached object is deleted, whether it should be reverted automatically. This should be set to true for production databases to avoid accidental deletion. If not set or set to false, deleting a Memcached object put the database into a dormant state.

spec.imagePullSecret

KubeDB provides the flexibility of deploying Memcached database from a private Docker registry. To learn how to deploym Memcached from a private registry, please visit here.

spec.monitor

Memcached managed by KubeDB can be monitored with builtin-Prometheus and CoreOS-Prometheus operator out-of-the-box. To learn more,

spec.resources

spec.resources is an optional field. This can be used to request compute resources required by the database pods. To learn more, visit here.

Next Steps

  • Learn how to use KubeDB to run a Memcached database here.
  • Wondering what features are coming next? Please visit here.
  • Want to hack on KubeDB? Check our contribution guidelines.

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