Add Restart, TLS and Reconfigure TLS for Memcached (#716)

* Add Restart

Signed-off-by: Muhammad Raisul Islam Evan <[email protected]>

docs/examples/memcached/custom-config/custom-podtemplate.yaml

@@ -0,0 +1,18 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: custom-mc
+  namespace: demo
+spec:
+  version: "1.6.22"
+  replicas: 1
+  podTemplate:
+    spec:
+      containers:
+        - name: memcached
+          env:
+            - name: "Memcached_Key"
+              value: KubeDB
+            - name: "Memcached_Value"
+              value: '123'
+  deletionPolicy: WipeOut

docs/examples/memcached/custom-config/node-selector.yaml

@@ -0,0 +1,13 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcached-node-selector
+  namespace: demo
+spec:
+  version: "1.6.22"
+  replicas: 1
+  podTemplate:
+    spec:
+      nodeSelector:
+        disktype: ssd
+  deletionPolicy: WipeOut

docs/examples/memcached/custom-config/sidecar-container.yaml

@@ -0,0 +1,29 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcached-custom-sidecar
+  namespace: demo
+spec:
+  version: "1.6.22"
+  replicas: 1
+  podTemplate:
+    spec:
+      containers:
+        - name: memcached
+          resources:
+            limits:
+              cpu: 100m
+              memory: 100Mi
+            requests:
+              cpu: 100m
+              memory: 100Mi
+        - name: filebeat
+          image: evanraisul/custom_filebeat:latest
+          resources:
+            limits:
+              cpu: 300m
+              memory: 300Mi
+            requests:
+              cpu: 300m
+              memory: 300Mi
+  deletionPolicy: WipeOut

docs/examples/memcached/custom-config/with-tolerations.yaml

@@ -0,0 +1,16 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcached-with-tolerations
+  namespace: demo
+spec:
+  version: "1.6.22"
+  replicas: 1
+  podTemplate:
+    spec:
+      tolerations:
+        - key: "key1"
+          operator: "Equal"
+          value: "node1"
+          effect: "NoSchedule"
+  deletionPolicy: WipeOut

docs/examples/memcached/custom-config/without-toleration.yaml

@@ -0,0 +1,9 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcached-without-tolerations
+  namespace: demo
+spec:
+  version: "1.6.22"
+  replicas: 1
+  deletionPolicy: WipeOut

docs/examples/memcached/reconfigure-tls/issuer.yaml

@@ -0,0 +1,8 @@
+apiVersion: cert-manager.io/v1
+kind: Issuer
+metadata:
+  name: memcached-ca-issuer
+  namespace: demo
+spec:
+  ca:
+    secretName: memcached-ca

docs/examples/memcached/reconfigure-tls/mc-add-tls.yaml

@@ -0,0 +1,21 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: MemcachedOpsRequest
+metadata:
+  name: mc-add-tls
+  namespace: demo
+spec:
+  type: ReconfigureTLS
+  databaseRef:
+    name: memcd-quickstart
+  tls:
+    issuerRef:
+      name: memcached-ca-issuer
+      kind: Issuer
+      apiGroup: "cert-manager.io"
+    certificates:
+      - alias: client
+        subject:
+          organizations:
+            - memcached
+          organizationalUnits:
+            - client

docs/examples/memcached/reconfigure-tls/mc-change-issuer.yaml

@@ -0,0 +1,14 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: MemcachedOpsRequest
+metadata:
+  name: mc-change-issuer
+  namespace: demo
+spec:
+  type: ReconfigureTLS
+  databaseRef:
+    name: memcd-quickstart
+  tls:
+    issuerRef:
+      name: mc-new-issuer
+      kind: Issuer
+      apiGroup: "cert-manager.io"

docs/examples/memcached/reconfigure-tls/mc-new-issuer.yaml

@@ -0,0 +1,8 @@
+apiVersion: cert-manager.io/v1
+kind: Issuer
+metadata:
+  name: mc-new-issuer
+  namespace: demo
+spec:
+  ca:
+    secretName: memcached-new-ca

docs/examples/memcached/reconfigure-tls/mc-ops-rotate.yaml

@@ -0,0 +1,11 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: MemcachedOpsRequest
+metadata:
+  name: mc-ops-rotate
+  namespace: demo
+spec:
+  type: ReconfigureTLS
+  databaseRef:
+    name: memcd-quickstart
+  tls:
+    rotateCertificates: true

docs/examples/memcached/reconfigure-tls/mc-ops-tls-remove.yaml

@@ -0,0 +1,11 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: MemcachedOpsRequest
+metadata:
+  name: mc-ops-tls-remove
+  namespace: demo
+spec:
+  type: ReconfigureTLS
+  databaseRef:
+    name: memcd-quickstart
+  tls:
+    remove: true

docs/examples/memcached/reconfigure-tls/memcached.yaml

@@ -0,0 +1,9 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcd-quickstart
+  namespace: demo
+spec:
+  replicas: 1
+  version: "1.6.22"
+  deletionPolicy: WipeOut

docs/examples/memcached/restart/memcached.yaml

@@ -0,0 +1,20 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcd-quickstart
+  namespace: demo
+spec:
+  replicas: 1
+  version: "1.6.22"
+  podTemplate:
+    spec:
+      containers:
+        - name: memcached
+          resources:
+            limits:
+              cpu: 500m
+              memory: 128Mi
+            requests:
+              cpu: 250m
+              memory: 64Mi
+  deletionPolicy: WipeOut

docs/examples/memcached/restart/opsrequest-restart.yaml

@@ -0,0 +1,9 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: MemcachedOpsRequest
+metadata:
+  name: memcd-new
+  namespace: demo
+spec:
+  type: Restart
+  databaseRef:
+    name: memcd-quickstart

docs/examples/memcached/tls/mc-tls.yaml

@@ -0,0 +1,19 @@
+apiVersion: kubedb.com/v1
+kind: Memcached
+metadata:
+  name: memcd-quickstart
+  namespace: demo
+spec:
+  replicas: 1
+  version: "1.6.22"
+  tls:
+    issuerRef:
+      apiGroup: "cert-manager.io"
+      kind: Issuer
+      name: memcached-ca-issuer
+    certificates:
+      - alias: client
+        ipAddresses:
+          - 127.0.0.1
+          - 192.168.0.252
+  deletionPolicy: WipeOut

docs/examples/memcached/tls/memcached-ca-issuer.yaml

@@ -0,0 +1,8 @@
+apiVersion: cert-manager.io/v1
+kind: Issuer
+metadata:
+  name: memcached-ca-issuer
+  namespace: demo
+spec:
+  ca:
+    secretName: memcached-ca

docs/guides/memcached/README.md

@@ -15,34 +15,30 @@ aliases:
 
 > New to KubeDB? Please start [here](/docs/README.md).
 
-## Supported Memcached Features
-
-| Features                               | Availability |
-| ------------------------------------   | :----------: |
-| Clustering                             |   ✗   |
-| Persistent Volume                      |   ✗   |
-| Instant Backup                         |   ✗   |
-| Scheduled Backup                       |   ✗   |
-| Initialize using Snapshot              |   ✗   |
-| Initialize using Script                |   ✗   |
-| Multiple Memcached Versions         |   ✓   |
-| Custom Configuration                   |   ✓   |
-| Externally manageable Auth Secret	     |   ✗   |
-| Reconfigurable Health Checker		     |   ✓   |
-| Using Custom docker image              |   ✓   |
-| Builtin Prometheus Discovery           |   ✓   |
-| Using Prometheus operator              |   ✓   |
-| Automated Version Update               |   ✓   |
-| Automated Vertical Scaling             |   ✓   |
-| Automated Horizontal Scaling           |   ✓   |
-| Automated db-configure Reconfiguration |   ✓   |
-| TLS: Add, Remove, Update, Rotate ( Cert Manager )	|✗|
-| Automated Volume Expansion	           |   ✗   |
-| Autoscaling (Vertically)               |   ✓   |
-| Grafana Dashboard               |   ✓   |
-| Alert Dashboard	               |   ✗   |
+## Overview
+`Memcached` is an in-memory key-value store that allows for high-performance, low-latency data caching. It is often used to speed up dynamic web applications by offloading frequent, computationally expensive database queries and storing data that needs to be retrieved fast. Memcached is frequently used in contexts where the rapid retrieval of tiny data items, such as session data, query results, and user profiles, is critical for increasing application performance. It is especially well-suited for use cases requiring scalability, distributed caching, and high throughput, making it a popular choice for powering online and mobile apps, particularly in high-concurrency environments. Memcached is a simple, extremely efficient caching layer that minimizes stress on backend systems and improves performance for applications that require real-time data.
 
+## Supported Memcached Features
 
+| Features                                              | Availability |
+| ----------------------------------------------------- | :----------: |
+| Custom Configuration                                  |   ✓   |
+| Externally manageable Auth Secret	                    |   ✓   |
+| Reconfigurable Health Checker		                      |   ✓   |
+| Using Custom docker image                             |   ✓   |
+| Builtin Prometheus Discovery                          |   ✓   |
+| Operator Managed Prometheus Discovery                 |   ✓   |
+| Automated Version Update                              |   ✓   |
+| Automated Vertical Scaling                            |   ✓   |
+| Automated Horizontal Scaling                          |   ✓   |
+| Automated db-configure Reconfiguration                |   ✓   |
+| Authentication & Authorization                        |   ✓   |
+| TLS: Add, Remove, Update, Rotate ( Cert Manager )	    |   ✓   |
+| Autoscaling (Vertically)                              |   ✓   |
+| Multiple Memcached Versions                           |   ✓   |
+| Monitoring using Prometheus and Grafana               |   ✓   |
+| Monitoring Grafana Dashboard                          |   ✓   |
+| Alert Grafana Dashboard	                              |   ✓   |
 
 ## Life Cycle of a Memcached Object
 

docs/guides/memcached/autoscaler/_index.md

@@ -5,6 +5,6 @@ menu:
     identifier: auto-scaling
     name: Autoscaling
     parent: mc-memcached-guides
-    weight: 47
+    weight: 90
 menu_name: docs_{{ .version }}
 ---

docs/guides/memcached/autoscaler/compute/_index.md

@@ -5,6 +5,6 @@ menu:
     identifier: compute-auto-scaling
     name: Compute Autoscaling
     parent: auto-scaling
-    weight: 46
+    weight: 91
 menu_name: docs_{{ .version }}
 ---

docs/guides/memcached/concepts/_index.md

@@ -5,6 +5,6 @@ menu:
     identifier: mc-concepts-memcached
     name: Concepts
     parent: mc-memcached-guides
-    weight: 20
+    weight: 30
 menu_name: docs_{{ .version }}
 ---

docs/guides/memcached/custom-configuration/_index.md

@@ -5,6 +5,6 @@ menu:
     identifier: custom-configuration
     name: Custom Configuration
     parent: mc-memcached-guides
-    weight: 30
+    weight: 40
 menu_name: docs_{{ .version }}
 ---

docs/guides/memcached/custom-configuration/using-config-file.md

@@ -3,7 +3,7 @@ title: Run Memcached with Custom Configuration
 menu:
   docs_{{ .version }}:
     identifier: mc-using-config-file-configuration
-    name: Config File
+    name: Customize Configurations
     parent: custom-configuration
     weight: 10
 menu_name: docs_{{ .version }}