Using CTE with a Couchbase Database

This document describes how to integrate CTE with a Couchbase database.

Test Environment

• CTE Agent: 7.2.0.128

• CipherTrust Manager: 2.8.0

• OS: RHEL/CentOS 8.2

• Couchbase: 7.1

• File System: XFS

System Requirement Specifications

• RAM: 16 GB

• Storage: 32 GB

• CPU: 3 GHz

Steps

To integrate CTE with a Couchbase database:

1. Create a Couchbase Cluster

2. Install and Register the CTE Agent

3. Create the GuardPoints

4. Create a Bucket and Run N1QL Query

Create a Couchbase Cluster

Create a Couchbase cluster of one or more nodes. You will install Couchbase Server and CTE Agent on these nodes.

Perform the following steps on all the nodes:

1. Log on to the SSH client.

2. Install the Couchbase Server.

   dnf install -y https://packages.couchbase.com/releases/couchbase-release/couchbase-release-1.0-x86_64.rpm
   dnf install -y couchbase-server

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   Output:

   [root@NOIENC1PFL—IR30 ~]# rpm -qa | grep couch
   couchbase-server-7.1.1-3175.x86_64
   couchbase-release-1.0-11.x86_64

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3. Ensure that the couchbase-server service is running.

   service couchbase-server status

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   Output:

   [root@NOIENC1PFL—IR3O ~]# service couchbase—server status
   Redirecting to [bin/systemctl status couchbase-server.service
   o couchbase—server.service — Couchbase Server
   Loaded: loaded (/usr/lib/systemd/system/couchbase—server.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2022-07-28 10:28:39 IST; 1 months 15 days ago
   Docs: httgs:[zdocs.couchbase.com
   Main PID: 2577 (beam.smp)
   Tasks: 424 (limit: 23815)
   Memory: 1.36
   CGroup: /system.slice/couchbase—server.service
           |-2577 /opt/couchbase/lib/erlang/erts—12.1.5/bin/beam.smp -A 16 -sbwt none -- -root /opt/couchbase/lib/erlan
           |-2600 /opt/couchbase/lib/erlang/erts-12.1.5/bin/epmd -daemon
           |-2681 erl_chi1d_setup 200000
           |-2701 /opt/couchbase/bin/gosecrets
           |-2705 /opt/couchbase/lib/erlang/erts-12.1.5/bin/beam.smp -A 16 -sbt u -P 327680 -K true -swt low -sbwt none
           |-2727 er1_chi1d_setup 200000
           |-2746 sh -s disksup
           |-2748 /opt/couchbase/lib/erlang/lib/os_mon—2.7.1/priv/bin/memsup
           |-2749 /opt/couchbase/lib/erlang/lib/os_mon—2.7.1/priv/bin/cpu_sup
           |-2750 portsigar for ns_1@cb.local 2577

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4. Initialize the node.

   /opt/couchbase/bin/couchbase-cli node-init -c <Node_IP> -u <USERNAME> -p <PASSWORD> --node-init-data-path /opt/couchbase/var/lib/couchbase/data --node-init-index-path /opt/couchbase/var/lib/couchbase/data --node-init-eventing-path /opt/couchbase/var/lib/couchbase/data --node-init-analytics-path /opt/couchbase/var/lib/couchbase/data --ipv4

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   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/couchbase-cli node-init -c 10.164.11.191 -u placeholdername -p placeholderpwd --node-init-data-path /opt/couchbase/var/lib/couchbase/data --node-init-index-path /opt/couchbase/var/Iib/couchbase/data --node-init-eventing-path /opt/couchbase/var/lib/couchbase/data --node-init-analytics-path /opt/couchbase/var/lib/couchbase/data --ipv4
   SUCCESS: Node initialized
   [root@NOIENC1PFL-IR30 ~]#

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After initializing all the nodes to be part of the cluster:

1. Create the cluster on one of the nodes.

   /opt/couchbase/bin/couchbase-cli cluster-init -c 10.164.11.191 --cluster-username <CLUSTER_USERNAME> --cluster-password <CLUSTER_PASSWORD> --services data,index,query --cluster-ramsize 512 --cluster-index-ramsize 256

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   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/couchbase-cli cluster-init -c 10.164.11.191 --cluster-username admin --cluster-password pvlinux --services data,index,query --cluster-ramsize 512 --cluster-index-ramsize 256
   SUCCESS: Cluster initialized
   [root@NOIENC1PFL-IR30 ~]#

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   Note

   The ramsize of the data, index, and other files can be changed according to the system availability.

2. Add the remaining nodes to the cluster.

   /opt/couchbase/bin/couchbase-cli server-add -c 10.164.11.191:8091 --username <CLUSTER_USERNAME> --password <CLUSTER_PASSWORD> --server-add 10.164.14.158 --server-add-username someName --server-add-password somePassword --services data

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   Note

   Disable and stop the firewall on all the nodes.

   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/couchbase-cli server-add -c 10.164.11.191:8091 --username admin --password pvlinux --server-add 10.164.14.158 --server-add-username someName --server-add-password somePassword --services data
   SUCCESS: Server added
   [root@NOIENC1PFL-IR30 ~]#

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3. Rebalance all the nodes from any node.

   /opt/couchbase/bin/couchbase-cli rebalance -c 10.164.11.191:8091 --username <CLUSTER_USERNAME> --password <CLUSTER_PASSWORD>

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   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/couchbase-cli rebalance -c 10.164.11.191:8091 --username admin --password pvlinux
   SUCCESS: Rebalance complete
   [root@NOIENC1PFL-IR30 ~]#

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   Note

   Couchbase recommends to rebalance the nodes when they are added or removed, and on failover.

4. Ensure that all the nodes are in a healthy state.

   /opt/couchbase/bin/couchbase-cli server-list -c localhost:8091 --username <CLUSTER_USERNAME> --password <CLUSTER_PASSWORD>

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   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/couchbase-cli server-list -c localhost:8091 --username admin --password pvlinux
   ns_1@10.164.11.191 10.164.11.191:8091 healthy active
   ns_1@10.164.11.203 10.164.11.203:8091 healthy active
   ns_1@10.164.14.158 10.164.14.158:8091 healthy active

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The sample output above shows that all the nodes are healthy.

Install and Register the CTE Agent

1. Install the CTE Agent on all nodes of the Couchbase cluster.

2. Register the CTE Agent with the CipherTrust Manager.

Refer to CTE - Agent Quick Start Guide for details.

Create the GuardPoints

Perform the following steps on all the cluster nodes.

1. On the CTE client, stop the Couchbase service.

   service couchbase-server stop

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2. On the CipherTrust Manager, create the GuardPoint. While creating the GuardPoint:

   • Enter the Path of the important Couchbase database, for example, /opt/couchbase/var/lib/couchbase/data/.

   • Select the Policy Type as Standard.

   

   Note

   • If the Couchbase buckets are already created, Dataxform needs to be performed.

   • You can also create LDT policy.

   • Create a User Set with users root and couchbase, and give them the permission to perform all Actions and Effects.

   Refer to Creating GuardPointsfor details.

3. Ensure that the GuardPoint status is guarded on the CTE client.

   secfsd -status guard

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   Output:

   [root@N01ENC1PFL-IR30 data]# secfsd -status guard
   
   GuardPoint                                  Policy                  Type        ConfigState     Status      Reason
   ----------                                  ------                  ----        -----------     ------      ------
   /opt/couchbase/var/liblcouchbase/data       production_policy       local       guarded         guarded     N/A
   [root@N01ENC1PFL-IR30 data]#

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Create a Bucket and Run N1QL Query

1. Log on to the Couchbase Web Console.

2. Create a new bucket. Refer to the Couchbase documentation for details.

   Alternatively, you can use an existing sample bucket.

3. On any CTE client, check for the newly created bucket in the bucket list.

   /opt/couchbase/bin/couchbase-cli bucket-list -c localhost:8091 --username admin --password pvlinux

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   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/couchbase-cli bucket-list -c localhost:8091 --username admin --password pvlinux
   travel-sample
   bucketType: membase
   numReplicas: 1
   ramQuota: 629145600
   ramUsed: 55536304
   [root@NOIENC1PFL-IR30 ~]#

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4. Perform an operation on the bucket by running an N1QL query.

   /opt/couchbase/bin/cbq -u=admin
   select name from `travel-sample` WHERE type="airline" LIMIT 1;

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   Output:

   [root@NOIENC1PFL-IR30 ~]# /opt/couchbase/bin/cbq -u=admin
    Enter Password:
    Connected to : http://localhost:8091/. Type Ctrl-D or \QUIT to exit.
   
    Path to history file for the shell : /root/.cbq_history
   cbq> select name from `travel-sample` WHERE type="airline"  LIMIT 1;
   {
       "requestID": "54f7edb8-4511-49f2-bead-8393e62d60d3",
       "signature": {
           "name": llj0.sonll
       },
       "results": [
       {
           "name": "40-Mile Air"
       }
       ],
       "status": "success",
       "metrics": {
       "elapsedTime": "27.916695ms",
       "executionTime": "27.827434ms",
       "resultCount": 1,
       "resultSize": 37,
       "serviceLoad": 12
       }
   }
   cbq>

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