Download RabbitMQ

Than64 MB are not recommended.Default: 128000RABBITMQ_NODENAMEThe node name should be unique per Erlang-node-and-machine combination.To run multiple nodes, see the clustering guide.Default:Unix:*rabbit@$HOSTNAMEWindows:rabbit@%COMPUTERNAME%RABBITMQ_CONFIG_FILEMain RabbitMQ config file path, for example,/etc/rabbitmq/rabbitmq.conf or /data/configuration/rabbitmq.conf for new style configuration format files.If classic config format it used, the extension must be .configDefault:Generic UNIX: $RABBITMQ_HOME/etc/rabbitmq/rabbitmq.confDebian: /etc/rabbitmq/rabbitmq.confRPM: /etc/rabbitmq/rabbitmq.confMacOS(Homebrew): ${install_prefix}/etc/rabbitmq/rabbitmq.conf,the Homebrew prefix is usually /usr/local or /opt/homebrewWindows: %APPDATA%\RabbitMQ\rabbitmq.confRABBITMQ_CONFIG_FILESPath to a directory of RabbitMQ configuration files in the new-style (.conf) format.The files will be loaded in alphabetical order. Prefixing each files with a numberis a common practice.Default:Generic UNIX: $RABBITMQ_HOME/etc/rabbitmq/conf.dDebian: /etc/rabbitmq/conf.dRPM: /etc/rabbitmq/conf.dMacOS(Homebrew): ${install_prefix}/etc/rabbitmq/conf.d,the Homebrew prefix is usually /usr/local or /opt/homebrewWindows: %APPDATA%\RabbitMQ\conf.dRABBITMQ_ADVANCED_CONFIG_FILE"Advanced" (Erlang term-based) RabbitMQ config file path with a .config file extension.For example, /data/rabbitmq/advanced.config.Default:Generic UNIX: $RABBITMQ_HOME/etc/rabbitmq/advanced.configDebian: /etc/rabbitmq/advanced.configRPM: /etc/rabbitmq/advanced.configMacOS (Homebrew): ${install_prefix}/etc/rabbitmq/advanced.config,the Homebrew prefix is usually /usr/local or /opt/homebrewWindows: %APPDATA%\RabbitMQ\advanced.configRABBITMQ_CONF_ENV_FILELocation of the file that contains environment variable definitions (without the RABBITMQ_prefix). Note that the file name on Windows is different from other operating systems.Default:Generic UNIX package: $RABBITMQ_HOME/etc/rabbitmq/rabbitmq-env.confUbuntu and Debian: /etc/rabbitmq/rabbitmq-env.confRPM: /etc/rabbitmq/rabbitmq-env.confMacOS (Homebrew): ${install_prefix}/etc/rabbitmq/rabbitmq-env.conf,the Homebrew prefix is usually /usr/local or /opt/homebrewWindows: %APPDATA%\RabbitMQ\rabbitmq-env-conf.batRABBITMQ_LOG_BASECan be used to override log files directory location.Default:Generic UNIX package: $RABBITMQ_HOME/var/log/rabbitmqUbuntu and Debian packages: /var/log/rabbitmqRPM: /var/log/rabbitmqMacOS (Homebrew): ${install_prefix}/var/log/rabbitmq,the Homebrew prefix is usually /usr/local or /opt/homebrewWindows: %APPDATA%\RabbitMQ\logRABBITMQ_MNESIA_BASEThis base directory contains sub-directories for the RabbitMQserver's node database, message store and cluster state files, one for each node,unless RABBITMQ_MNESIA_DIR is set explicitly.It is important that effective RabbitMQ user has sufficient permissionsto read, write and create files and subdirectories in this directoryat any time. This variable is typically not overridden.Usually RABBITMQ_MNESIA_DIR is overridden instead.Default:Generic UNIX package: $RABBITMQ_HOME/var/lib/rabbitmq/mnesiaUbuntu

Distribution-specific. RabbitMQ packages or nodes will not createany configuration files. Users and deployment tool should use the following locations when creating the files:PlatformDefault Configuration File DirectoryExample Configuration File PathsGeneric binary package$RABBITMQ_HOME/etc/rabbitmq/$RABBITMQ_HOME/etc/rabbitmq/rabbitmq.conf,$RABBITMQ_HOME/etc/rabbitmq/advanced.configDebian and Ubuntu/etc/rabbitmq//etc/rabbitmq/rabbitmq.conf,/etc/rabbitmq/advanced.configRPM-based Linux/etc/rabbitmq//etc/rabbitmq/rabbitmq.conf,/etc/rabbitmq/advanced.configWindows%APPDATA%\RabbitMQ\%APPDATA%\RabbitMQ\rabbitmq.conf,%APPDATA%\RabbitMQ\advanced.configMacOS Homebrew Formula${install_prefix}/etc/rabbitmq/,and the Homebrew cellar prefix is usually /usr/local${install_prefix}/etc/rabbitmq/rabbitmq.conf,${install_prefix}/etc/rabbitmq/advanced.configEnvironment variables can be used to override the location of the configuration file:# overrides primary config file locationRABBITMQ_CONFIG_FILE=/path/to/a/custom/location/rabbitmq.conf# overrides advanced config file locationRABBITMQ_ADVANCED_CONFIG_FILE=/path/to/a/custom/location/advanced.config# overrides environment variable file locationRABBITMQ_CONF_ENV_FILE=/path/to/a/custom/location/rabbitmq-env.confWhen Will Configuration File Changes Be Applied​rabbitmq.conf and advanced.config changes take effect after a node restart.If rabbitmq-env.conf doesn't exist, it can be created manuallyin the location specified by the RABBITMQ_CONF_ENV_FILE variable.On Windows systems, it is named rabbitmq-env-conf.bat.Windows service users will need to re-install the service ifconfiguration file location or any values in ``rabbitmq-env-conf.bat` have changed.Environment variables used by the service would not be updated otherwise.In the context of deployment automation this means that environment variablessuch as RABBITMQ_BASE and RABBITMQ_CONFIG_FILE should ideally be set before RabbitMQ is installed.This would help avoid unnecessary confusion and Windows service re-installations.How to Inspect and Verify Effective Configuration of a Running Node​It is possible to print effective configuration (user provided values from all configuration files merged into defaults) usingthe rabbitmq-diagnostics environment command:# inspect effective configuration on a noderabbitmq-diagnostics environmentto check effective configuration of a specific node, including nodes running remotely, use the -n (short for --node) switch:rabbitmq-diagnostics environment -n [node name]The command above will print applied configuration for every application (RabbitMQ, plugins, libraries) running on the node.Effective configuration is computed using the following steps:rabbitmq.conf is translated into

RabbitMQ is an open-source message broker that supports flexible and scalable message-driven processing architectures. It’s crucial for high-throughput scenarios like financial transaction processing systems and expansive e-commerce platforms. By installing RabbitMQ on Ubuntu 20.04, you can achieve seamless communication between applications, ensuring data reliability and system resilience. In this article, we will guide you through the installation process to fully leverage the potential of RabbitMQ.What is RabbitMQ?RabbitMQ is a versatile message broker that can handle multiple messaging protocols. It’s designed to provide efficient, reliable delivery of messages in complex routing scenarios. Here are some common use cases for RabbitMQ:Asynchronous Processing. RabbitMQ improves application responsiveness by handling time-consuming tasks in the background, thus decoupling application processes.Application Integration. It allows different components or services within a system to communicate seamlessly, regardless of their development language or platform.Work Queues. Distributes tasks among multiple workers or nodes, ensuring efficient load distribution and scalability.Publish/Subscribe Pattern. RabbitMQ can broadcast a single message to many consumers simultaneously, useful for real-time updates or collaborative tools.Load Balancing. By evenly distributing workloads across nodes or servers, RabbitMQ ensures optimal performance and prevents system overloads.How to Install RabbitMQ?Here’s a guide on how to install RabbitMQ on Ubuntu 20.04: 1. Update the system. Firstly, ensure your system is up to date, run the command:sudo apt update && sudo apt upgrade -y2. Add the required repositories. You need to add the official RabbitMQ signing key and repository, run the command:sudo apt install curl gnupg -ycurl -fsSL | sudo apt-key add -Now, add the repository:sudo add-apt-repository 'deb focal main'3. Install RabbitMQ Server. Now you can install RabbitMQ:sudo apt update && sudo apt install rabbitmq-server -y4. Enable and Start the RabbitMQ Service. After installation, enable and start the RabbitMQ service:sudo systemctl enable rabbitmq-serversudo systemctl start rabbitmq-serverThere won’t be any visible response to these commands, but if you’d like to verify the status:sudo systemctl status rabbitmq-server5. Access RabbitMQ Management Console. To access the RabbitMQ management console, enable the RabbitMQ management plugin:sudo rabbitmq-plugins enable rabbitmq_managementCongratulations, now, you can access the RabbitMQ management console via the web browser: to replace “your_server_IP” with your actual server’s IP address. Default

Comment[ {rabbit, [ {tcp_listeners, [5673]} ] }].This example will alter the port RabbitMQ listens on forAMQP 0-9-1 and AMQP 1.0 client connections from 5672 to 5673.The RabbitMQ server source repository contains an example rabbitmq.conf filenamed rabbitmq.conf.example. It contains examples ofmost of the configuration items you might want to set (with some very obscure ones omitted), along withdocumentation for those settings.Documentation guides such as Networking, TLS, orAccess Control contain many examples in relevant formats.Note that this configuration file is not to be confused with the environment variableconfiguration files, rabbitmq-env.confand rabbitmq-env-conf.bat.To override the main RabbitMQ config file location, use the RABBITMQ_CONFIG_FILE(or RABBITMQ_CONFIG_FILES to use a conf.d-style directory of sorted files) environment variables.Use .conf as file extension for the new style config format, e.g. /etc/rabbitmq/rabbitmq.conf or/data/configuration/rabbitmq/rabbitmq.confUsing a Directory of .conf Files​A conf.d-style directory of files can also be used. Use RABBITMQ_CONFIG_FILES (note the plural "_FILES")to point the node at a directory of such files:# uses a directory of .conf files loaded in alphabetical orderRABBITMQ_CONFIG_FILES=/path/to/a/custom/location/rabbitmq/conf.dTarget directory must contain a number of .conf files with the same syntax as rabbitmq.conf.They will be loaded in alphabetical order. A common naming practice uses numerical prefixesin filenames to make it easier to reason about the order, or make sure a "defaults file"is always loaded first, regardless of how many extra files are generated at deployment time:ls -lh /path/to/a/custom/location/rabbitmq/conf.d# => -r--r--r-- 1 rabbitmq rabbitmq 87B Mar 21 19:50 00-defaults.conf# => -r--r--r-- 1 rabbitmq rabbitmq 4.6K Mar 21 19:52 10-main.conf# => -r--r--r-- 1 rabbitmq rabbitmq 1.6K Mar 21 19:52 20-tls.conf#

Nodes.kubectl get nodesThe following example output shows the single node created in the previous steps. Make sure the node status is Ready.NAME STATUS ROLES AGE VERSIONaks-nodepool1-31718369-0 Ready agent 6m44s v1.15.10Deploy the applicationYou use a manifest file to create all the objects required to run the AKS Store application. A Kubernetes manifest file defines a cluster's desired state, such as which container images to run. The manifest includes the following Kubernetes deployments and services:Store front: Web application for customers to view products and place orders.Product service: Shows product information.Order service: Places orders.Rabbit MQ: Message queue for an order queue.NoteWe don't recommend running stateful containers, such as Rabbit MQ, without persistent storage for production. These are used here for simplicity, but we recommend using managed services, such as Azure CosmosDB or Azure Service Bus.In the Cloud Shell, open an editor and create a file named aks-store-quickstart.yaml.Paste the following manifest into the editor:apiVersion: apps/v1kind: StatefulSetmetadata: name: rabbitmqspec: serviceName: rabbitmq replicas: 1 selector: matchLabels: app: rabbitmq template: metadata: labels: app: rabbitmq spec: nodeSelector: "kubernetes.io/os": linux containers: - name: rabbitmq image: mcr.microsoft.com/mirror/docker/library/rabbitmq:3.10-management-alpine ports: - containerPort: 5672 name: rabbitmq-amqp - containerPort: 15672 name: rabbitmq-http env: - name: RABBITMQ_DEFAULT_USER value: "username" - name: RABBITMQ_DEFAULT_PASS value: "password" resources: requests: cpu: 10m memory: 128Mi limits: cpu: 250m memory: 256Mi volumeMounts: - name: rabbitmq-enabled-plugins mountPath: /etc/rabbitmq/enabled_plugins subPath: enabled_plugins volumes: - name: rabbitmq-enabled-plugins configMap: name: rabbitmq-enabled-plugins items: - key: rabbitmq_enabled_plugins path: enabled_plugins---apiVersion: v1data: rabbitmq_enabled_plugins: | [rabbitmq_management,rabbitmq_prometheus,rabbitmq_amqp1_0].kind: ConfigMapmetadata: name: rabbitmq-enabled-plugins ---apiVersion: v1kind: Servicemetadata: name: rabbitmqspec: selector: app: rabbitmq ports: - name: rabbitmq-amqp port: 5672 targetPort: 5672 - name: rabbitmq-http port: 15672 targetPort: 15672 type: ClusterIP---apiVersion: apps/v1kind: Deploymentmetadata: name: order-servicespec: replicas: 1 selector: matchLabels: app: order-service template: metadata: labels: app: order-service spec: nodeSelector: "kubernetes.io/os": linux containers: - name: order-service image: ghcr.io/azure-samples/aks-store-demo/order-service:latest ports: - containerPort: 3000 env: - name: ORDER_QUEUE_HOSTNAME value: "rabbitmq" - name: ORDER_QUEUE_PORT value: "5672" - name: ORDER_QUEUE_USERNAME value: "username" - name: ORDER_QUEUE_PASSWORD value: "password" - name: ORDER_QUEUE_NAME value: "orders" - name: FASTIFY_ADDRESS value: "0.0.0.0" resources: requests: cpu: 1m memory: 50Mi limits: cpu: 75m memory: 128Mi startupProbe: httpGet: path: /health port: 3000 failureThreshold: 5 initialDelaySeconds: 20 periodSeconds: 10 readinessProbe: httpGet: path: /health