In last post of this series we deployed cassandra node and configured ssl security for cassandra. In this post we will be installing RabbitMQ for vCD.
If you are not following along this series, then I recommend reading earlier posts of this series from below links:
1: vCloud Availability Introduction
2: vCloud Availability Architecture & Components
4: Install Cloud Proxy for vCD
What is RabbitMQ (RMQ)?
RabbitMQ is an open source message-queuing software which helps in facilitating message exchange between 2 or more applications. The exchange of messages is done via queue which is defined by administrator. An application can publish a message to the queue which can be retrieve or consumed by a different application.
A message can include any kind of information for example, it could have information about a process/task that should start on another application may be on another server or it could be just a simple text message.
The queue-manager software stores the messages until a receiving application connects and takes a message off the queue. The receiving application then processes the message in an appropriate manner.
Why we need RMQ for vCloud Director?
When you have a multi-cell vCD deployment in your environment, the vCD cells talks to each other and exchange information. This exchange of information is facilitated via RabbitMQ.
RabbitMQ and vCloud director utilize the Advanced Message Queuing Protocol (AMQP) to talk to each other.
When a vCloud Director Cell wishes to exchange messages (such as system notifications or any other update) with another vCloud Director cell, it places that message within an AMQP broker (Such as RMQ) in one of the queue defined by Administrator.
The recipient vCloud Director Cell then retrieves the message from the queue and processes it and if needed it can publish a message back to queue for the source cell from where message was originated.
In my lab I deployed a new CentOS 6 VM and verified its Networking,DNS and NTP is working fine.
Next is to install RabitMQ following below steps:
1: Download and Install Erlang rpm.
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[root@mgmt-rmq02 ~]# wget http://www.rabbitmq.com/releases/erlang/erlang-18.3-1.el6.x86_64.rpm [root@mgmt-rmq02 ~]# rpm -ivh erlang-18.3-1.el6.x86_64.rpm |
2: Download and Import RabbitMQ public key
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[root@mgmt-rmq02 ~]# wget https://www.rabbitmq.com/rabbitmq-signing-key-public.asc [root@mgmt-rmq02 ~]# rpm --import rabbitmq-signing-key-public.asc |
3: Download and Install RabbitMQ rpm.
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[root@mgmt-rmq02 ~]# wget http://www.rabbitmq.com/releases/rabbitmq-server/v3.6.1/rabbitmq-server-3.6.1-1.noarch.rpm [root@mgmt-rmq02 ~]# rpm -ivh rabbitmq-server-3.6.1-1.noarch.rpm |
4: Configure RabbitMQ by following below steps:
a: create testca, server and client directories in /etc/rabbitmq
[root@mgmt-rmq02 ~]# cd /etc/rabbitmq;mkdir -p testca server client
b: Create rabbitmq.config file in /etc/rabbitmq directory with below contents
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[root@mgmt-rmq02 rabbitmq]# vim /etc/rabbitmq/rabbitmq.config [{ssl, [{versions, [tlsv1, 'tlsv1.2', 'tlsv1.1']}, {ciphers, ["ECDHE-ECDSA-AES256-GCM-SHA384","ECDHE-RSA-AES256-GCM-SHA384", "ECDHE-ECDSA-AES256-SHA384","ECDHE-RSA-AES256-SHA384", "ECDH-ECDSA-AES256-GCM-SHA384","ECDH-RSA-AES256-GCM-SHA384", "ECDH-ECDSA-AES256-SHA384","ECDH-RSA-AES256-SHA384", "DHE-RSA-AES256-GCM-SHA384","DHE-DSS-AES256-GCM-SHA384", "DHE-RSA-AES256-SHA256","DHE-DSS-AES256-SHA256","AES256-GCM-SHA384", "AES256-SHA256","ECDHE-ECDSA-AES128-GCM-SHA256", "ECDHE-RSA-AES128-GCM-SHA256","ECDHE-ECDSA-AES128-SHA256", "ECDHE-RSA-AES128-SHA256","ECDH-ECDSA-AES128-GCM-SHA256", "ECDH-RSA-AES128-GCM-SHA256","ECDH-ECDSA-AES128-SHA256", "ECDH-RSA-AES128-SHA256","DHE-RSA-AES128-GCM-SHA256", "DHE-DSS-AES128-GCM-SHA256","DHE-RSA-AES128-SHA256","DHE-DSS-AES128-SHA256", "AES128-GCM-SHA256","AES128-SHA256","ECDHE-ECDSA-AES256-SHA", "ECDHE-RSA-AES256-SHA","DHE-RSA-AES256-SHA","DHE-DSS-AES256-SHA", "ECDH-ECDSA-AES256-SHA","ECDH-RSA-AES256-SHA","AES256-SHA", "ECDHE-ECDSA-DES-CBC3-SHA","ECDHE-RSA-DES-CBC3-SHA","EDH-RSA-DES-CBC3-SHA", "EDH-DSS-DES-CBC3-SHA","ECDH-ECDSA-DES-CBC3-SHA","ECDH-RSA-DES-CBC3-SHA", "DES-CBC3-SHA","ECDHE-ECDSA-AES128-SHA","ECDHE-RSA-AES128-SHA", "DHE-RSA-AES128-SHA","DHE-DSS-AES128-SHA","ECDH-ECDSA-AES128-SHA", "ECDH-RSA-AES128-SHA","AES128-SHA","EDH-RSA-DES-CBC-SHA","DES-CBC-SHA"]}]}, {rabbit, [ {tcp_listeners, [5672]}, {ssl_listeners, [5671]}, {ssl_options, [{cacertfile,"/etc/rabbitmq/testca/cacert.pem"}, {certfile,"/etc/rabbitmq/server/cert.pem"}, {keyfile,"/etc/rabbitmq/server/key.pem"}, {versions, [tlsv1, 'tlsv1.2', 'tlsv1.1']}, {verify, verify_peer}, {padding_check, true}, {ciphers, ["ECDHE-ECDSA-AES256-GCM-SHA384","ECDHE-RSA-AES256-GCM-SHA384", "ECDHE-ECDSA-AES256-SHA384","ECDHE-RSA-AES256-SHA384", "ECDH-ECDSA-AES256-GCM-SHA384","ECDH-RSA-AES256-GCM-SHA384", "ECDH-ECDSA-AES256-SHA384","ECDH-RSA-AES256-SHA384", "DHE-RSA-AES256-GCM-SHA384","DHE-DSS-AES256-GCM-SHA384", "DHE-RSA-AES256-SHA256","DHE-DSS-AES256-SHA256","AES256-GCM-SHA384", "AES256-SHA256","ECDHE-ECDSA-AES128-GCM-SHA256", "ECDHE-RSA-AES128-GCM-SHA256","ECDHE-ECDSA-AES128-SHA256", "ECDHE-RSA-AES128-SHA256","ECDH-ECDSA-AES128-GCM-SHA256", "ECDH-RSA-AES128-GCM-SHA256","ECDH-ECDSA-AES128-SHA256", "ECDH-RSA-AES128-SHA256","DHE-RSA-AES128-GCM-SHA256", "DHE-DSS-AES128-GCM-SHA256","DHE-RSA-AES128-SHA256","DHE-DSS-AES128-SHA256", "AES128-GCM-SHA256","AES128-SHA256","ECDHE-ECDSA-AES256-SHA", "ECDHE-RSA-AES256-SHA","DHE-RSA-AES256-SHA","DHE-DSS-AES256-SHA", "ECDH-ECDSA-AES256-SHA","ECDH-RSA-AES256-SHA","AES256-SHA", "ECDHE-ECDSA-DES-CBC3-SHA","ECDHE-RSA-DES-CBC3-SHA","EDH-RSA-DES-CBC3-SHA", "EDH-DSS-DES-CBC3-SHA","ECDH-ECDSA-DES-CBC3-SHA","ECDH-RSA-DES-CBC3-SHA", "DES-CBC3-SHA","ECDHE-ECDSA-AES128-SHA","ECDHE-RSA-AES128-SHA", "DHE-RSA-AES128-SHA","DHE-DSS-AES128-SHA","ECDH-ECDSA-AES128-SHA", "ECDH-RSA-AES128-SHA","AES128-SHA","EDH-RSA-DES-CBC-SHA","DES-CBC-SHA"]}, {fail_if_no_peer_cert,false}]} ]} ]. |
d: Enable and Start RabbitMQ server service.
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[root@mgmt-rmq02 ~]# chkconfig rabbitmq-server on [root@mgmt-rmq02 rabbitmq]# service rabbitmq-server start Starting rabbitmq-server: SUCCESS rabbitmq-server. |
e: Enable RabbitMQ UI on http://server-name:15672/
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[root@mgmt-rmq02 rabbitmq]# rabbitmq-plugins enable rabbitmq_management The following plugins have been enabled: mochiweb webmachine rabbitmq_web_dispatch amqp_client rabbitmq_management_agent rabbitmq_management Applying plugin configuration to rabbit@mgmt-rmq02... started 6 plugins. |
f: Create new admin user for RMQ administration
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[root@mgmt-rmq02 rabbitmq]# rabbitmqctl add_user admin vmware Creating user "admin" ... [root@mgmt-rmq02 rabbitmq]# rabbitmqctl set_permissions -p / admin ".*" ".*" ".*" Setting permissions for user "admin" in vhost "/" ... [root@mgmt-rmq02 rabbitmq]# rabbitmqctl set_user_tags admin administrator Setting tags for user "admin" to [administrator] ... |
RabbitMQ SSL Configuration
1: Install Java on RMQ node
[root@mgmt-rmq02 ~]# rpm -ivh jdk-8u152-linux-x64.rpm
2: Create a public and a private key
Note: In below command the SAN attribute contains DNS names and IP addresses of all of the RabbitMQ hosts and the load balancer. For single RMQ node there will be only one entry.
# keytool -genkeypair -keystore rootca.jks -storepass vmware -keyalg RSA -validity 1826 -keypass vmware -alias rabbitmq -dname “CN=*.alex.local,OU=vStellar.com, O=Alex.Co, L=Bangalore S=Karnataka C=IN” -ext san=dns:mgmt-rmq02.alex.local,ip:192.168.109.35
If you have multiple RMQ nodes that are load balanced via VIP then modify the above command as shown below
# keytool -genkeypair -keystore rootca.jks -storepass vmware -keyalg RSA -validity 365 -keypass vmware -alias rabbitmq -dname “CN=*.corp-ext.local,OU=Test, O=Corp, L=Palo Alto S=CA C=US” -ext san=dns:test2.corp-ext.local,dns:test3.corp-ext.local,dns:testrabbitmqlb.corp-ext.local,ip:172.31.3.39,ip:172.31.3.40,ip:172.31.3.41
3: Import the RabbitMQ key pair to the PKCS12 trust store
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[root@mgmt-rmq02 ~]# keytool -importkeystore -srckeystore rootca.jks -destkeystore foo.p12 -deststoretype pkcs12 -srcstorepass vmware -deststorepass vmware -alias rabbitmq Importing keystore rootca.jks to foo.p12... |
4: Convert the key pair file to PEM format
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[root@mgmt-rmq02 ~]# openssl pkcs12 -in foo.p12 -out foo.pem -passin pass:vmware -passout pass:vmware MAC verified OK |
5: Extract the encrypted private key
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[root@mgmt-rmq02 ~]# sed -n '/-----BEGIN ENCRYPTED PRIVATE KEY-----/,/-----END ENCRYPTED PRIVATE KEY-----/p' foo.pem > enc.pem |
6: Decrypt the private key
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[root@mgmt-rmq02 ~]# openssl rsa -in enc.pem -out unenc.pem -passin pass:vmware writing RSA key |
7: Extract the certificate
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[root@mgmt-rmq02 ~]# sed -n '/-----BEGIN CERTIFICATE-----/,/-----END CERTIFICATE-----/p' foo.pem > cert.pem |
8: Install the self-signed certificates by copying them to the newly created directories.
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[root@mgmt-rmq02 ~]# cp cert.pem /etc/rabbitmq/testca/cacert.pem [root@mgmt-rmq02 ~]# cp cert.pem /etc/rabbitmq/server/cert.pem [root@mgmt-rmq02 ~]# cp cert.pem /etc/rabbitmq/client/cert.pem [root@mgmt-rmq02 ~]# cp unenc.pem /etc/rabbitmq/server/key.pem [root@mgmt-rmq02 ~]# cp unenc.pem /etc/rabbitmq/client/key.pem |
9: Change the ownership of the newly created directories
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[root@mgmt-rmq02 ~]# chown -R rabbitmq: /etc/rabbitmq/testca [root@mgmt-rmq02 ~]# chown -R rabbitmq: /etc/rabbitmq/server [root@mgmt-rmq02 ~]# chown -R rabbitmq: /etc/rabbitmq/client |
10: Restart RMQ service
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[root@mgmt-rmq02 ~]# service rabbitmq-server restart Restarting rabbitmq-server: SUCCESS rabbitmq-server. |
Configure a RabbitMQ Cluster
In my lab I am not setting up RabbitMQ cluster yet. But if you want to do so then instructions are documented here
RMQ-vCD Integration
Connect to VCAV appliance via SSH and run following commands to integrate vCD with RMQ.
root@mgmt-vcav [ ~ ]# export AMQP_ADDRESS=mgmt-rmq02.alex.local
root@mgmt-vcav [ ~ ]# export VCD_USER=admin
root@mgmt-vcav [ ~ ]# export VCD_ADDRESS=192.168.109.30
root@mgmt-vcav [ ~ ]# vcav trust add –address=$AMQP_ADDRESS –port=5671 –accept-all
WARNING – Trusting 3D:DF:04:D7:5E:0C:0C:DA:2A:39:68:51:B7:4C:BB:BA:54:FF:A8:32 for mgmt-rmq02.alex.local:5671
OK
root@mgmt-vcav [ ~ ]# vcav vcd configure-amqp –vcd-address=$VCD_ADDRESS –vcd-user=$VCD_USER –vcd-password-file=~/.ssh/.vcd –amqp-address=$AMQP_ADDRESS –amqp-port=5671 –amqp-user=admin –amqp-password-file=~/.ssh/.amqp –amqp-vhost=/ –amqp-exchange=systemExchange
OK
Now if you login to vCD, you can see the presence of RMQ configuration under System > Administration > Extensibility
Click on Test AMQP Connection to verify vCD can talk to RMQ.
If you login to RMQ, you will see few queues created and vCD cell as consumer.
And that’s it for this post. In next post of this series we will deploy the vSphere Replication appliances.
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