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Wazuh Docker deployment

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Usage

You can deploy Wazuh as a single-node or multi-node stack.

  • Single-node deployment: Deploys one Wazuh manager, indexer, and dashboard node.

  • Multi-node deployment: Deploys two Wazuh manager nodes (one master and one worker), three Wazuh indexer nodes, and a Wazuh dashboard node.

Both deployments use persistence and allow configuring certificates to secure communications between nodes. The multi-node stack is the only deployment that contains high availability.

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Single-node Deployment

  1. Clone the Wazuh repository to your system:

    git clone https://github.com/wazuh/wazuh-docker.git -b v4.10.1

    Then enter into the single-node directory to execute all the commands described below within this directory.

  2. Provide a group of certificates for each node in the stack to secure communication between the nodes. You have two alternatives to provide these certificates:

    • Generate self-signed certificates for each cluster node.

      We have created a Docker image to automate certificate generation using the Wazuh certs gen tool.

      If your system uses a proxy, add the following to the generate-indexer-certs.yml file. If not, skip this particular step:

      environment:
  - HTTP_PROXY=YOUR_PROXY_ADDRESS_OR_DNS

      A completed example looks like:

      # Wazuh App Copyright (C) 2017 Wazuh Inc. (License GPLv2)
version: '3'

services:
  generator:
    image: wazuh/wazuh-certs-generator:0.0.2
    hostname: wazuh-certs-generator
    volumes:
      - ./config/wazuh_indexer_ssl_certs/:/certificates/
      - ./config/certs.yml:/config/certs.yml
    environment:
      - HTTP_PROXY=YOUR_PROXY_ADDRESS_OR_DNS

      Execute the following command to get the desired certificates:

      docker-compose -f generate-indexer-certs.yml run --rm generator

      This saves the certificates into the config/wazuh_indexer_ssl_certs directory.

    • Provide your own certificates for each node.

      In case you have your own certificates, provision them as follows in the config/wazuh_indexer_ssl_certs directory:

      Wazuh indexer:

      config/wazuh_indexer_ssl_certs/root-ca.pem
config/wazuh_indexer_ssl_certs/wazuh.indexer-key.pem
config/wazuh_indexer_ssl_certs/wazuh.indexer.pem
config/wazuh_indexer_ssl_certs/admin.pem
config/wazuh_indexer_ssl_certs/admin-key.pem

      Wazuh manager:

      config/wazuh_indexer_ssl_certs/root-ca-manager.pem
config/wazuh_indexer_ssl_certs/wazuh.manager.pem
config/wazuh_indexer_ssl_certs/wazuh.manager-key.pem

      Wazuh dashboard:

      config/wazuh_indexer_ssl_certs/wazuh.dashboard.pem
config/wazuh_indexer_ssl_certs/wazuh.dashboard-key.pem
config/wazuh_indexer_ssl_certs/root-ca.pem

  3. Start the Wazuh single-node deployment using docker-compose:

    • Foreground:

      docker-compose up

    • Background:

      docker-compose up -d

    The default username and password for the Wazuh dashboard are admin and SecretPassword. For additional securityarrow-up-right, you can change the default password for the Wazuh indexer admin user.

Note

To know when the Wazuh indexer is up, the Wazuh dashboard container uses curl to run multiple queries to the Wazuh indexer API. You can expect to see several Failed to connect to Wazuh indexer port 9200 log messages or “ Wazuh dashboard server is not ready yet ” until the Wazuh indexer is started. Then the setup process continues normally. It takes about 1 minute for the Wazuh indexer to start up. You can find the default Wazuh indexer credentials in the docker-compose.yml file.

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Multi-node deployment

  1. Clone the Wazuh repository to your system:

    Then enter into the multi-node directory to execute all the commands described below within this directory.

  2. Provide a group of certificates for each node in the stack to secure communications between the nodes. You have two alternatives to provide these certificates:

    • Generate self-signed certificates for each cluster node.

      We have created a Docker image to automate certificate generation using the Wazuh certs gen tool.

      If your system uses a proxy, add the following to the generate-indexer-certs.yml file. If not, skip this particular step:

      A completed example looks like:

      Execute the following command to get the desired certificates:

      This saves the certificates into the config/wazuh_indexer_ssl_certs directory.

    • Provide your own certificates for each node.

      In case you have your own certificates, provision them as follows:

      Wazuh indexer:

      Wazuh manager:

      Wazuh dashboard:

  3. Start the Wazuh multi-node deployment using docker-compose:

    • Foreground:

    • Background:

    The default username and password for the Wazuh dashboard are admin and SecretPassword. For additional security, you can change the default password for the Wazuh indexer admin user.

Note

To know when the Wazuh indexer is up, the Wazuh dashboard container uses curl to run multiple queries to the Wazuh indexer API. You can expect to see several Failed to connect to Wazuh indexer port 9200 log messages or “Wazuh dashboard server is not ready yet” until the Wazuh indexer is started. Then the setup process continues normally. It takes about 1 minute for the Wazuh indexer to start up. You can find the default Wazuh indexer credentials in the docker-compose.yml file.

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Build docker images locally

You can modify and build the Wazuh manager, indexer, and dashboard images locally.

  1. Clone the Wazuh repository to your system:

    git clone https://github.com/wazuh/wazuh-docker.git -b v4.10.1

  2. For versions up to 4.3.4, enter into the build-docker-images directory and build the Wazuh manager, indexer, and dashboard images:

    For version 4.3.5 and above, run the image creation script:

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Change the password of Wazuh users

To improve security, you can change the default password of the Wazuh users. There are two types of Wazuh users:

  • Wazuh indexer users

  • Wazuh API users

To change the password of these Wazuh users, perform the following steps. You must run the commands from your single-node/ or multi-node/ directory, depending on your Wazuh on Docker deployment.

Wazuh indexer users

To change the password of the default admin and kibanaserver users, do the following. You can only change one at a time.

Warning

If you have custom users, add them to the internal_users.yml file. Otherwise, executing this procedure deletes them.

Closing your Wazuh dashboard session

Before starting the password change process, we recommend to log out of your Wazuh dashboard session.

If you don't log out, persistent session cookies might cause errors when accessing Wazuh after changing user passwords.

Setting a new hash

  1. Stop the deployment stack if it’s running:

  2. Run this command to generate the hash of your new password. Once the container launches, input the new password and press Enter.

  3. Copy the generated hash.

  4. Open the config/wazuh_indexer/internal_users.yml file. Locate the block for the user you are changing password for.

  5. Replace the hash.

    • admin user

    • kibanaserver user

Setting the new password

Warning

Don't use the $ or & characters in your new password. These characters can cause errors during deployment.

  1. Open the docker-compose.yml file. Change all occurrences of the old password with the new one. For example, for a single-node deployment:

    • admin user

    • kibanaserver user

Applying the changes

  1. Start the deployment stack.

  2. Run docker ps and note the name of the first Wazuh indexer container. For example, single-node-wazuh.indexer-1, or multi-node-wazuh1.indexer-1.

  3. Run docker exec -it <WAZUH_INDEXER_CONTAINER_NAME> bash to enter the container. For example:

  4. Set the following variables:

  5. Wait for the Wazuh indexer to initialize properly. The waiting time can vary from two to five minutes. It depends on the size of the cluster, the assigned resources, and the speed of the network. Then, run the securityadmin.sh script to apply all changes.

    Single-node clusterMulti-node cluster

  6. Exit the Wazuh indexer container and login with the new credentials on the Wazuh dashboard.

Wazuh API

The wazuh-wui user is the user to connect with the Wazuh API by default. Follow these steps to change the password.

Note

The password for Wazuh API users must be between 8 and 64 characters long. It must contain at least one uppercase and one lowercase letter, a number, and a symbol.

  1. Open the file config/wazuh_dashboard/wazuh.yml and modify the value of password parameter.

  2. Open the docker-compose.yml file. Change all occurrences of the old password with the new one.

  3. Recreate the Wazuh containers:

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Exposed ports

By default, the stack exposes the following ports:

1514

Wazuh TCP

1515

Wazuh TCP

514

Wazuh UDP

55000

Wazuh API

9200

Wazuh indexer HTTPS

443

Wazuh dashboard HTTPS

Note

Docker doesn’t reload the configuration dynamically. You need to restart the stack after changing the configuration of a component.

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