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****************************************************************************************************
Подключаемся к нужной машине
```sh
ssh ivanov_i@10.101.1.3 -p 22
```
Установка сервиса обмена сообщениями RabbitMQ менеджер сообщений (message broker), написан на Erlang, ближайший аналог в AWS SQS. По документации из: https://rtfm.co.ua/ru/rabbitmq-zapusk-opisanie-primery/
```sh
sudo apt-get update &&
sudo apt-get dist-upgrade &&
sudo apt install rabbitmq-server
```
Создаём пользователя и задаём пароль
```sh
sudo rabbitmqctl list_users &&
sudo rabbitmqctl add_user ivanov_i KGf4nxT8vxZWv3jqNasP &&
sudo rabbitmqctl set_user_tags ivanov_i administrator &&
sudo rabbitmqctl set_permissions -p / ivanov_i ".*" ".*" ".*" &&
sudo rabbitmqctl change_password ivanov_i KGf4nxT8vxZWv3jqNasP
```
Посмотреть список используемых плагинов:
```sh
sudo rabbitmq-plugins list
```
Активируем плагин rabbitmq_management для наблюдения за системой по HTTP https://www.rabbitmq.com/management.html https://thewebland.net/development/devops/chast-3-interfejs-upravleniya-rabbitmq/#:~:text=RabbitMQ%20Management%20%20это%20удобный%20интерфейс,и%20отправлять%20%2F%20получать%20сообщения%20вручную.
```sh
sudo rabbitmq-plugins enable rabbitmq_management
```
rabbitmq_management активирует поддержку API на порту 15672: http://192.168.0.144:15672 http://10.1.7.70:15672 http://192.168.0.83:15672
Но для активации нужно добавить пользователя, смотрим пользователей:
```sh
sudo rabbitmqctl list_users
sudo rabbitmqctl add_user admin paRabbit! или test test для локального тестового сервера
sudo rabbitmqctl set_user_tags admin administrator
sudo rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"
```
Также можно создать пользователя для публикации сообщений но уже это можно сделать через WEB интерфейс: producer lgGDWAJEwI для guest с паролем: efewG!4ev Александра: alex jefruf!43
Теперь можно логинется по test test поменять пароль можно: https://kb.vmware.com/s/article/323520#:~:text=Log%20in%20to%20the%20RabbitMQ,host%20where%20RabbitMQ%20is%20installed.
Или так можно поменять пароль: sudo rabbitmqctl change_password zenoss New-Password
producer: клиент, выполняющий отправку сообщения
queue: собственно очередь сообщений
consumer: клиент, получающий сообщения из очереди
exchange: получает сообщения от producer, и отправялет их в очереди в соответствии с его типом (см. тут https://www.rabbitmq.com/tutorials/tutorial-three-python.html)
Дальше можно пробовать отправлять данные в очередь используя допустим java библиотеку урок: https://www.youtube.com/watch?v=6lPK_LgTZ9Y
https://www.rabbitmq.com/devtools.html :
Создаю Maven проект в консоли:
```sh
cd O:\projects\Workspace_Java\
mvn archetype:generate -DgroupId=kz.istt.app -DartifactId=TransitToRabbitMQ -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 -DinteractiveMode=false
```
Открываю его в idea64 и добавляю в POM следующую зависемость из https://mvnrepository.com/artifact/com.rabbitmq/amqp-client:
```xml
<!-- https://mvnrepository.com/artifact/com.rabbitmq/amqp-client -->
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>5.14.2</version>
</dependency>
```
Также поставил C:\Program Files\Java\jdk-14.0.2 а то не запускалось, также просит рут права для IntelliJ IDEA.
Урок создания maven проекта: https://devcolibri.com/unit/урок-1-подготовка-и-создание-maven-проекта/
или https://www.jetbrains.com/idea/guide/tutorials/working-with-maven/creating-a-project/
Добавил в POM файл:
```xml
<repositories>
<repository>
<name>RabbitMQ</name>
<url>https://repo1.maven.org/maven2/com/rabbitmq/amqp-client/5.16.0</url>
<id>com.rabbitmq</id>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>5.16.0</version>
</dependency>
</dependencies>
```
Перезагружаем:
```sh
sudo service rabbitmq-server restart
```
****************************************************************************************************
Установка Shovels Plugin для RabbitMQ (лопата) по мотивам из: https://www.rabbitmq.com/docs/shovel
Активирую плагин командой:
```sh
sudo rabbitmq-plugins enable rabbitmq_shovel &&
sudo rabbitmq-plugins enable rabbitmq_shovel_management
```
Настраиваю Shovels Dynamic плагин в RabbitMQ через командную строку:
```sh
sudo rabbitmqctl set_parameter shovel kaz_to_kaz '{
"src-protocol": "amqp091",
"src-uri": "amqp://admin:paRabbit!@127.0.0.1:20000/transportation",
"src-queue": "TO_KAZ",
"dest-protocol": "amqp091",
"dest-uri": "amqp://admin:paRabbit!@10.101.1.11:20000/playground",
"dest-exchange": "swap",
"dest-exchange-key": ".KAZ.",
"ack-mode": "on-confirm",
"publish-properties": {
"delivery_mode": 2
}
}'
```
Для Росии такие настройки:
```sh
sudo rabbitmqctl set_parameter shovel kaz_to_rus '{
"src-protocol": "amqp091",
"src-uri": "amqp://admin:paRabbit!@127.0.0.1:20000/transportation_rus",
"src-queue": "TO_RUS",
"dest-protocol": "amqp091",
"dest-uri": "amqp://iktt_kaz:jkrjHL7xj7PrW1D@192.168.89.133:20000/playground",
"dest-exchange": "swap",
"dest-exchange-key": "KZ",
"ack-mode": "on-confirm",
"publish-properties": {
"delivery_mode": 2
}
}'
```
Для Беларусии такие настройки:
```sh
sudo rabbitmqctl set_parameter shovel kaz_to_blr '{
"src-protocol": "amqp091",
"src-uri": "amqp://admin:paRabbit!@127.0.0.1:20000/transportation_blr",
"src-queue": "TO_BLR",
"dest-protocol": "amqp091",
"dest-uri": "amqp://KZ_IKTT:DK34xDNlZQfQ551k@192.168.90.133:20000/plumber",
"dest-exchange": "eec.swap",
"dest-exchange-key": "KZ",
"ack-mode": "on-confirm",
"publish-properties": {
"delivery_mode": 2
}
}'
```
Для Армении такие настройки:
```sh
sudo rabbitmqctl set_parameter shovel kaz_to_arm '{
"src-protocol": "amqp091",
"src-uri": "amqp://admin:password@127.0.0.1:20000/transportation_arm",
"src-queue": "TO_ARM",
"dest-protocol": "amqp091",
"dest-uri": "amqp://kz_istt:password@192.168.89.158:20000/transportation",
"dest-exchange": "swap_kz",
"dest-exchange-key": "KZ_ISTT",
"ack-mode": "on-confirm",
"publish-properties": {
"delivery_mode": 2
}
}'
```
Для Кыргызстана (таможенная инфраструктура)
```sh
sudo rabbitmqctl set_parameter shovel kaz_to_kgz '{
"src-protocol": "amqp091",
"src-uri": "amqp://admin:paRabbit!@127.0.0.1:20000/transportation_kgz",
"src-queue": "TO_KGZ",
"dest-protocol": "amqp091",
"dest-uri": "amqp://kz_istt:uzZNYbVTElMDXnfwQx16@192.168.70.133:20000/transportation_kaz",
"dest-exchange": "swap",
"dest-exchange-key": "KAZ",
"ack-mode": "on-confirm",
"publish-properties": {
"delivery_mode": 2
}
}'
```
Удалять так:
```sh
sudo rabbitmqctl clear_parameter shovel kaz_to_kgz
```
Для отправки из Киргизии нам то такие настройки:
```sh
sudo rabbitmqctl set_parameter shovel kgz_to_kaz '{
"src-protocol": "amqp091",
"src-uri": "amqp://admin:pfta2OFt@127.0.0.1:20000/transportation_kaz",
"src-queue": "TO_KAZ",
"dest-protocol": "amqp091",
"dest-uri": "amqp://kg_amap:qrd2fjEjkegdi7bfb@192.168.70.134:20000/transportation_kgz",
"dest-exchange": "swap",
"dest-exchange-key": "KGZ",
"ack-mode": "on-confirm",
"publish-properties": {
"delivery_mode": 2
}
}'
```
Удалять так:
```sh
sudo rabbitmqctl clear_parameter shovel kgz_to_kaz
```
Чтобы проверить текущие параметры Shovel:
```sh
sudo rabbitmqctl list_parameters
```
А также можно взглянуть что создалось через WEB интерфейс
Не забывать что Exchange: swap должен быть не "direct" а как "topic" иначе маршрутизация не сработает.

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Heres a step-by-step guide to setting up a **RabbitMQ cluster with replication** correctly:
---
## **Step 1: Prepare the Servers**
Ensure you have at least **three** nodes (recommended for HA) with:
- Ubuntu 22.04 (or a supported OS)
- Sufficient CPU/RAM based on workload
- Open necessary firewall ports (**5672, 15672, 25672**)
Set hostnames for clarity:
```bash
sudo hostnamectl set-hostname rabbitmq-node1 # Change for each node
```
---
## **Step 2: Install Erlang and RabbitMQ**
Run the following on **all nodes**:
### **1. Add the RabbitMQ Repository**
```bash
sudo apt update
sudo apt install -y curl gnupg
curl -fsSL https://packagecloud.io/rabbitmq/rabbitmq-server/gpgkey | sudo tee /usr/share/keyrings/rabbitmq-key.asc
echo "deb [signed-by=/usr/share/keyrings/rabbitmq-key.asc] https://packagecloud.io/rabbitmq/rabbitmq-server/ubuntu/ $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/rabbitmq.list
```
### **2. Install Erlang and RabbitMQ**
```bash
sudo apt update
sudo apt install -y rabbitmq-server
```
### **3. Enable RabbitMQ**
```bash
sudo systemctl enable --now rabbitmq-server
```
---
## **Step 3: Configure Clustering**
### **1. Stop RabbitMQ on All Nodes**
```bash
sudo systemctl stop rabbitmq-server
```
### **2. Configure Cookie for Clustering**
Run on **all nodes** (same cookie ensures clustering works):
```bash
echo "MY_CLUSTER_COOKIE" | sudo tee /var/lib/rabbitmq/.erlang.cookie
sudo chmod 600 /var/lib/rabbitmq/.erlang.cookie
```
Replace `"MY_CLUSTER_COOKIE"` with a strong, identical value on all nodes.
---
## **Step 4: Join Nodes to the Cluster**
Perform this on **nodes 2 and 3**, joining them to **node1**:
```bash
sudo rabbitmqctl stop_app
sudo rabbitmqctl join_cluster rabbit@rabbitmq-node1
sudo rabbitmqctl start_app
```
Check cluster status:
```bash
sudo rabbitmqctl cluster_status
```
---
## **Step 5: Enable High Availability (HA) Mirroring**
To replicate all queues, run on **any one node**:
```bash
rabbitmqctl set_policy ha-all "^.*" '{"ha-mode":"all","ha-sync-mode":"automatic"}'
```
This ensures all queues are **replicated across all nodes**.
---
## **Step 6: Enable Management UI**
Run on **each node** to enable the web interface:
```bash
sudo rabbitmq-plugins enable rabbitmq_management
```
Access at:
**http://[NODE_IP]:15672**
(Default login: `guest/guest`, change this for security.)
---
## **Step 7: Test the Cluster**
Run on **each node**:
```bash
rabbitmqctl list_queues
```
Queues should be visible and synchronized.
---
## **Step 8: Enable Auto-Recovery** (Optional)
Edit `/etc/rabbitmq/rabbitmq.conf` on **each node** and add:
```ini
cluster_formation.peer_discovery_backend = classic_config
cluster_formation.classic_config.nodes.1 = rabbit@rabbitmq-node1
cluster_formation.classic_config.nodes.2 = rabbit@rabbitmq-node2
cluster_formation.classic_config.nodes.3 = rabbit@rabbitmq-node3
```
Then restart RabbitMQ:
```bash
sudo systemctl restart rabbitmq-server
```
---
## **Step 9: Secure the Cluster** (Recommended)
### **1. Create an Admin User**
```bash
rabbitmqctl add_user admin StrongPassword123!
rabbitmqctl set_user_tags admin administrator
rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"
```
Then **disable the guest account**:
```bash
rabbitmqctl delete_user guest
```
### **2. Enable TLS (Optional)**
For security, configure TLS in `/etc/rabbitmq/rabbitmq.conf`. Refer to RabbitMQs [TLS guide](https://www.rabbitmq.com/ssl.html).
---
## **Step 10: Setup Monitoring (Optional)**
Install **Prometheus & Grafana** or use **RabbitMQ Prometheus plugin**:
```bash
sudo rabbitmq-plugins enable rabbitmq_prometheus
```
---
Now your RabbitMQ cluster is fully set up with **replication and high availability**! 🚀
---
<br>
<br>
<br>
<br>
# Instructions to fix **unexpected** configuration errors
If you can't find the RabbitMQ config file under `/etc/rabbitmq`, it may not exist by default. You need to **create it manually**. Here's how:
## **1⃣ Create the Configuration File**
RabbitMQ uses either a **`.conf` file** (modern format) or a **`.config` file** (legacy format). The recommended format is `.conf`.
Create the file if it doesn't exist:
```bash
sudo nano /etc/rabbitmq/rabbitmq.conf
```
Then add the following cluster configuration:
```
cluster_formation.peer_discovery_backend = classic_config
cluster_formation.classic_config.nodes.1 = rabbit@rabbitmq-main
cluster_formation.classic_config.nodes.2 = rabbit@rabbitmq-replica
```
Save and exit (`CTRL+X`, then `Y`, then `Enter`).
---
## **2⃣ Set Correct Permissions**
Ensure the RabbitMQ user can read it:
```bash
sudo chown rabbitmq:rabbitmq /etc/rabbitmq/rabbitmq.conf
sudo chmod 644 /etc/rabbitmq/rabbitmq.conf
```
---
## **3⃣ Restart RabbitMQ**
After modifying the configuration, restart the RabbitMQ service:
```bash
sudo systemctl restart rabbitmq-server
```
Check the status:
```bash
sudo systemctl status rabbitmq-server
```
---
## **4⃣ Verify the Cluster Configuration**
After restarting, verify that clustering is working:
```bash
rabbitmqctl cluster_status
```
If the nodes are listed correctly, your setup is working.
---
## **5⃣ If Using the Legacy `.config` Format**
Some older installations use an **Erlang-based configuration file** (`rabbitmq.config`). If you prefer that, create:
```bash
sudo nano /etc/rabbitmq/rabbitmq.config
```
Add this:
```erlang
[
{rabbit, [
{cluster_formation, [
{peer_discovery_backend, classic_config},
{classic_config, [
{nodes, ['rabbit@rabbitmq-main', 'rabbit@rabbitmq-replica']}
]}
]}
]}
].
```
Then restart RabbitMQ:
```bash
sudo systemctl restart rabbitmq-server
```
---
### **🔍 Troubleshooting**
**RabbitMQ doesn't restart?**
Check logs for errors:
```bash
sudo journalctl -u rabbitmq-server --no-pager | tail -50
```
**Cluster not forming?**
Try forcing a node to join manually:
```bash
rabbitmqctl stop_app
rabbitmqctl join_cluster rabbit@rabbitmq-main
rabbitmqctl start_app
```
---
<br>
<br>
<br>
<br>
# Instructions to fix **unexpected** management UI authentication errors
stackoverflow answer [link](https://stackoverflow.com/a/40845332/27251837)
## Answer
### ❌ **Cannot login with guest/guest credentials**
I had the same Problem..
I installed RabbitMQ and Enabled Web Interface also but still couldn't sign in with any user i newly created, this is because you need to be administrator to access this.
Do not create any config file and mess with it..
This is what i did then,
1. Add a new/fresh user, say user test and password test:
```bash
rabbitmqctl add_user test test
```
2. Give administrative access to the new user:
```bash
rabbitmqctl set_user_tags test administrator
```
3. Set permission to newly created user:
```bash
rabbitmqctl set_permissions -p / test ".*" ".*" ".*"
```
That's it, enjoy :)