{"id":655,"date":"2024-07-22T20:37:41","date_gmt":"2024-07-22T20:37:41","guid":{"rendered":"https:\/\/dockerpros.com\/?post_type=glossary&p=655"},"modified":"2024-07-23T12:39:45","modified_gmt":"2024-07-23T12:39:45","slug":"docker-swarm","status":"publish","type":"glossary","link":"https:\/\/dockerpros.com\/es\/wiki\/docker-swarm\/","title":{"rendered":"Docker Swarm"},"content":{"rendered":"

Understanding Docker Swarm: An Advanced Guide<\/h1>\n

Docker Swarm is a native clustering and orchestration<\/a><\/span>Orchestration refers to the automated management and coordination of complex systems and services. It optimizes processes by integrating various components, ensuring efficient operation and resource utilization. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> herramienta para gestionar un grupo de hosts de Docker como un \u00fanico host virtual. Al proporcionar una plataforma robusta para implementar, gestionar y escalar<\/a><\/span>Scaling refers to the process of adjusting the capacity of a system to accommodate varying loads. It can be achieved through vertical scaling, which enhances existing resources, or horizontal scaling, which adds additional resources. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> containerized applications, Docker Swarm enables developers and system administrators to handle multiple containers across various machines seamlessly. With its built-in load balancing<\/a><\/span>El balanceo de carga es una t\u00e9cnica fundamental de gesti\u00f3n de redes que distribuye el tr\u00e1fico entrante entre m\u00faltiples servidores. Esto garantiza una utilizaci\u00f3n \u00f3ptima de los recursos, minimiza el tiempo de respuesta y mejora la disponibilidad de las aplicaciones. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> discovery, and high availability features, Docker Swarm simplifies the orchestration<\/a><\/span>Orchestration refers to the automated management and coordination of complex systems and services. It optimizes processes by integrating various components, ensuring efficient operation and resource utilization. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> of microservices, making it a crucial component in modern DevOps practices.<\/p>\n

La arquitectura de Docker Swarm<\/h2>\n

Para comprender todo el potencial de Docker Swarm, es esencial entender su arquitectura y componentes. La arquitectura de Docker Swarm est\u00e1 dise\u00f1ada para soportar un entorno multi-host contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> entorno mediante un modelo maestro-trabajador<\/p>\n

1. Manager Nodes<\/strong><\/h3>\n

Manager nodes are responsible for managing the Swarm cluster. They maintain the state of the cluster, perform orchestration<\/a><\/span>Orchestration refers to the automated management and coordination of complex systems and services. It optimizes processes by integrating various components, ensuring efficient operation and resource utilization. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> tasks, and handle the API<\/a><\/span>Una API, o Interfaz de Programaci\u00f3n de Aplicaciones, permite que las aplicaciones de software se comuniquen e interact\u00faen entre s\u00ed. Define protocolos y herramientas para construir software y facilitar la integraci\u00f3n. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> requests from clients. Each manager node<\/a><\/span>Un Nodo Gerente es un componente cr\u00edtico en los sistemas distribuidos, responsable de orquestar tareas, gestionar recursos y garantizar la tolerancia a fallos. Mantiene el estado del cl\u00faster y coordina la comunicaci\u00f3n entre los nodos trabajadores. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> ejecuta un algoritmo de consenso Raft para garantizar que el estado del cl\u00faster sea consistente en todos los nodos gestores. En una configuraci\u00f3n t\u00edpica, se recomienda tener un n\u00famero impar de nodos gestores (por ejemplo, tres o cinco) para facilitar la elecci\u00f3n del l\u00edder y la tolerancia a fallos.<\/p>\n

2. Nodos de trabajo<\/strong><\/h3>\n

Los nodos trabajadores ejecutan las tareas que les asignan los nodos gestores. No participan en la gesti\u00f3n del cl\u00faster; en cambio, se centran \u00fanicamente en ejecutar los contenedores. Esta separaci\u00f3n de responsabilidades permite la escalabilidad, ya que se pueden agregar nodos trabajadores adicionales para manejar una carga aumentada.<\/p>\n

3. Servicios y Tareas<\/strong><\/h3>\n

In Docker Swarm, a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is defined as a logical grouping of tasks. Each tarea<\/a><\/span>Una tarea es una pieza espec\u00edfica de trabajo o deber asignado a un individuo o sistema. Aborda objetivos definidos, recursos necesarios y resultados esperados, facilitando el progreso estructurado en diversos contextos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> corresponds to a contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> running on a nodo de trabajo<\/a><\/span>A worker node is a computational unit within a distributed system, responsible for executing tasks assigned by a master node. It processes data, performs computations, and maintains system efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. Services allow you to define how many replicas of a particular contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> you want to run<\/a><\/span>\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, the networks it should connect to, and the resource limits for the tasks. The swarm manager continuously monitors the state of the services and takes corrective actions as needed (e.g., restarting a failed tarea<\/a><\/span>Una tarea es una pieza espec\u00edfica de trabajo o deber asignado a un individuo o sistema. Aborda objetivos definidos, recursos necesarios y resultados esperados, facilitando el progreso estructurado en diversos contextos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>).<\/p>\n

Setting Up Docker Swarm<\/h2>\n

Configurar Docker Swarm es sencillo y se puede lograr en pocos pasos. Aqu\u00ed tienes una gu\u00eda detallada para inicializar un cl\u00faster Swarm.<\/p>\n

Paso 1: Instalar Docker<\/h3>\n

First and foremost, ensure that Docker is installed on all the nodes intended for the Swarm cluster. You can follow the official Docker installation documentation for your specific operating system.<\/p>\n

Paso 2: Inicializar el Swarm\n\nPara inicializar el Swarm, necesitamos crear un nodo manager. El nodo manager es responsable de administrar el Swarm y coordinar las tareas entre los nodos worker.\n\nPara crear un nodo manager, utilizamos el siguiente comando:\n\n```\ndocker swarm init\n```\n\nEste comando inicializar\u00e1 un nuevo Swarm y convertir\u00e1 el nodo actual en un nodo manager. El nodo manager generar\u00e1 un token que se utilizar\u00e1 para unir otros nodos al Swarm.\n\nUna vez que el Swarm est\u00e1 inicializado, podemos verificar su estado utilizando el siguiente comando:\n\n```\ndocker node ls\n```\n\nEste comando mostrar\u00e1 una lista de todos los nodos en el Swarm, incluyendo el nodo manager y cualquier nodo worker que se haya unido.\n\nAhora que tenemos un Swarm inicializado, podemos continuar con el siguiente paso para unir nodos worker al Swarm.<\/h3>\n

On the manager node<\/a><\/span>Un Nodo Gerente es un componente cr\u00edtico en los sistemas distribuidos, responsable de orquestar tareas, gestionar recursos y garantizar la tolerancia a fallos. Mantiene el estado del cl\u00faster y coordina la comunicaci\u00f3n entre los nodos trabajadores. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, usa el siguiente comando para inicializar el Swarm:<\/p>\n

docker swarm init<\/a><\/span>Docker Swarm Init es un comando utilizado para inicializar un nuevo cl\u00faster Swarm. Configura el host Docker actual como un nodo manager, habilitando la orquestaci\u00f3n de servicios a trav\u00e9s de m\u00faltiples hosts. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --advertise-addr <\/code><\/pre>\n
This command makes the current Docker host a manager node<\/a><\/span>Un Nodo Gerente es un componente cr\u00edtico en los sistemas distribuidos, responsable de orquestar tareas, gestionar recursos y garantizar la tolerancia a fallos. Mantiene el estado del cl\u00faster y coordina la comunicaci\u00f3n entre los nodos trabajadores. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in the Swarm and outputs a join token for worker nodes.<\/p>\n
Paso 3: Unir Nodos de Trabajo<\/h3>\n
On each nodo de trabajo<\/a><\/span>A worker node is a computational unit within a distributed system, responsible for executing tasks assigned by a master node. It processes data, performs computations, and maintains system efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, run<\/a><\/span>\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> the command provided during the initialization process:<\/p>\n
docker swarm join<\/a><\/span>Docker Swarm Join enables nodes to connect and form a cluster within a Docker swarm. By utilizing the `docker swarm join` command with a token and manager IP, nodes can seamlessly integrate into the orchestration framework, enhancing scalability and resource management. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --token  :2377<\/code><\/pre>\n
This command connects the nodo de trabajo<\/a><\/span>A worker node is a computational unit within a distributed system, responsible for executing tasks assigned by a master node. It processes data, performs computations, and maintains system efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to the Swarm cluster.<\/p>\n
Step 4: Verify the Swarm Status<\/h3>\n
To check the status of your Swarm, use the following command on the manager node<\/a><\/span>Un Nodo Gerente es un componente cr\u00edtico en los sistemas distribuidos, responsable de orquestar tareas, gestionar recursos y garantizar la tolerancia a fallos. Mantiene el estado del cl\u00faster y coordina la comunicaci\u00f3n entre los nodos trabajadores. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n
docker node<\/a><\/span>Docker Node is a key component in a Docker cluster, responsible for running containers and managing their lifecycle. It facilitates orchestration, scaling, and distribution of workloads across multiple environments. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> ls<\/code><\/pre>\n
Este comando enumera todos los nodos en el Swarm, junto con su estado (activo, inactivo, etc.).<\/p>\n
Managing Services<\/h2>\n
Una vez que su Swarm est\u00e9 configurado, puede comenzar a implementar servicios. Estos son algunos conceptos clave y comandos relevantes para gestionar servicios en Docker Swarm:<\/p>\n
Creando un Servicio<\/h3>\n
Para crear un servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in Docker Swarm, use the docker servicio crear<\/a><\/span>El comando `docker service create` permite a los usuarios crear y desplegar un nuevo servicio en un Docker Swarm. Permite escalar, balancear la carga y gestionar aplicaciones contenerizadas a trav\u00e9s de m\u00faltiples nodos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span><\/code> command. For example:<\/p>\n
docker servicio crear<\/a><\/span>El comando `docker service create` permite a los usuarios crear y desplegar un nuevo servicio en un Docker Swarm. Permite escalar, balancear la carga y gestionar aplicaciones contenerizadas a trav\u00e9s de m\u00faltiples nodos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --name my_service --replicas 3 nginx<\/code><\/pre>\n
Este comando crea un servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> llamado my_service<\/code> with three replicas of the nginx contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n
Updating a Service<\/h3>\n
You might need to update a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to change its configuration or imagen<\/a><\/span>An image is a visual representation of an object or scene, typically composed of pixels in digital formats. It can convey information, evoke emotions, and facilitate communication across various media. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. Utilice el docker service update<\/a><\/span>Docker Service Update enables seamless updates to running services in a Swarm cluster. It facilitates rolling updates, ensuring minimal downtime while maintaining service availability and stability. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span><\/code> comando:<\/p>\n
docker service update<\/a><\/span>Docker Service Update enables seamless updates to running services in a Swarm cluster. It facilitates rolling updates, ensuring minimal downtime while maintaining service availability and stability. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --image nginx:latest my_service<\/code><\/pre>\n
This command updates the servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to use the latest version of the nginx imagen<\/a><\/span>An image is a visual representation of an object or scene, typically composed of pixels in digital formats. It can convey information, evoke emotions, and facilitate communication across various media. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n
Scaling a Service<\/h3>\n
Escalabilidad<\/a><\/span>Scaling refers to the process of adjusting the capacity of a system to accommodate varying loads. It can be achieved through vertical scaling, which enhances existing resources, or horizontal scaling, which adds additional resources. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> services in Docker Swarm can be done easily. For example, to scale my_service<\/code> hasta cinco r\u00e9plicas, se usar\u00edan:<\/p>\n
docker service scale<\/a><\/span>Docker Service Scale allows users to adjust the number of service replicas in a swarm, ensuring optimal resource utilization and load balancing. This feature enhances application resilience and performance. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> mi_servicio=5<\/code><\/pre>\n
Eliminaci\u00f3n de un servicio<\/h3>\n
To remove a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, utilice el siguiente comando:<\/p>\n
docker service rm<\/a><\/span>El comando `docker service rm` se utiliza para eliminar servicios de un Docker Swarm. Este comando ayuda a gestionar los recursos de manera eficiente al eliminar servicios innecesarios o obsoletos, garantizando un rendimiento \u00f3ptimo. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> my_service<\/code><\/pre>\n
This command will stop and remove all the tasks associated with the specified servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n
Networking in Docker Swarm<\/h2>\n
Docker Swarm provides advanced networking options that enable services to communicate with each other securely and efficiently. Here are some key networking concepts:<\/p>\n
Redes Superpuestas<\/h3>\n
Las redes de superposici\u00f3n permiten que los contenedores que se ejecutan en hosts diferentes se comuniquen entre s\u00ed. Cuando creas una overlay network<\/a><\/span>Una red superpuesta es una red virtual construida sobre una red f\u00edsica existente. Permite una comunicaci\u00f3n y compartici\u00f3n de recursos eficientes, mejorando la escalabilidad y flexibilidad mientras abstrae las complejidades de la infraestructura subyacente. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, Docker Swarm handles the complexity of routing traffic between the nodes. For example:<\/p>\n
docker network create<\/a><\/span>The `docker network create` command enables users to establish custom networks for containerized applications. This facilitates efficient communication and isolation between containers, enhancing application performance and security. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --driver overlay mi_red_anidada<\/code><\/pre>\n
You can then attach services to this red<\/a><\/span>Una red, en inform\u00e1tica, es un conjunto de dispositivos interconectados que se comunican y comparten recursos. Permite el intercambio de datos, facilita la colaboraci\u00f3n y mejora la eficiencia operativa. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, allowing them to communicate without exposing ports to the host machine.<\/p>\n
Descubrimiento de servicios<\/h3>\n
Docker Swarm comes with built-in servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> discovery. When you create a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, Docker assigns it a DNS name based on the servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> name, allowing other services to discover and communicate with it seamlessly.<\/p>\n
Equilibrio de Carga\n\nLoad balancing is a critical component of modern distributed systems, ensuring that incoming requests are distributed efficiently across multiple servers or resources. This technique helps prevent any single server from becoming overwhelmed while others remain underutilized, thereby improving overall system performance, reliability, and scalability.\n\nIn a typical load balancing setup, a load balancer acts as an intermediary between clients and servers. When a client sends a request, the load balancer receives it and forwards it to one of the available servers based on a predetermined algorithm. These algorithms can vary, including round-robin, least connections, IP hash, or weighted distribution, depending on the specific needs of the system.\n\nOne of the primary benefits of load balancing is its ability to handle traffic spikes and maintain high availability. If one server fails or becomes unresponsive, the load balancer can automatically redirect traffic to other healthy servers, minimizing downtime and ensuring continuous service. This failover capability is essential for mission-critical applications that require near-zero downtime.\n\nLoad balancing also plays a crucial role in horizontal scaling. As demand increases, additional servers can be added to the pool, and the load balancer will automatically start distributing traffic to these new resources. This elasticity allows systems to handle growing workloads without significant reconfiguration or downtime.\n\nThere are different types of load balancers, including hardware-based solutions, software-based solutions, and cloud-based services. Hardware load balancers are physical devices that sit between the client and server, offering high performance and advanced features. Software load balancers, on the other hand, are applications that run on standard servers or virtual machines, providing more flexibility and easier integration with modern infrastructure.\n\nCloud-based load balancing services, such as Amazon's Elastic Load Balancing or Google Cloud Load Balancing, offer managed solutions that automatically scale with your application's needs. These services often include additional features like health checks, SSL termination, and integration with other cloud services.\n\nWhen implementing load balancing, it's important to consider factors such as session persistence, where subsequent requests from the same client are directed to the same server to maintain session state. This is particularly important for applications that rely on server-side session storage.\n\nAnother consideration is the use of content delivery networks (CDNs) in conjunction with load balancing. CDNs can cache static content closer to end-users, reducing the load on origin servers and improving response times. Load balancers can then focus on distributing dynamic content and API requests.\n\nSecurity is also a key aspect of load balancing. Many load balancers offer features like SSL\/TLS termination, which offloads the cryptographic processing from backend servers, improving performance. They can also provide protection against common attacks like DDoS by filtering malicious traffic before it reaches the application servers.\n\nMonitoring and analytics are essential components of an effective load balancing strategy. By tracking metrics such as response times, error rates, and server utilization, administrators can make informed decisions about capacity planning and performance optimization.\n\nIn conclusion, load balancing is a fundamental technique for building scalable, reliable, and high-performance distributed systems. By intelligently distributing traffic across multiple resources, it ensures optimal resource utilization, improves fault tolerance, and provides a seamless experience for end-users. As systems continue to grow in complexity and scale, the importance of effective load balancing strategies will only increase.<\/h3>\n
Docker Swarm automatically load balances traffic between the replicas of a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. By default, Docker uses a round-robin approach to distribute requests evenly, ensuring that no single contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is overwhelmed with traffic.<\/p>\n
Gesti\u00f3n de Secretos y Configuraciones<\/h2>\n
In a microservices architecture, managing sensitive information (such as passwords and API<\/a><\/span>Una API, o Interfaz de Programaci\u00f3n de Aplicaciones, permite que las aplicaciones de software se comuniquen e interact\u00faen entre s\u00ed. Define protocolos y herramientas para construir software y facilitar la integraci\u00f3n. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> keys) and configurations is crucial. Docker Swarm provides a built-in mechanism for handling secrets and configurations securely.<\/p>\n
Gesti\u00f3n de Secretos<\/h3>\n
You can create a secreto<\/a><\/span>El concepto de \"secreto\" abarca informaci\u00f3n retenida de otros, a menudo por razones de privacidad, seguridad o confidencialidad. Comprender sus implicaciones es crucial en campos como la protecci\u00f3n de datos y la teor\u00eda de la comunicaci\u00f3n. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in Docker Swarm using the following command:<\/p>\n
echo \"my_secret_password\" | docker secreto<\/a><\/span>El concepto de \"secreto\" abarca informaci\u00f3n retenida de otros, a menudo por razones de privacidad, seguridad o confidencialidad. Comprender sus implicaciones es crucial en campos como la protecci\u00f3n de datos y la teor\u00eda de la comunicaci\u00f3n. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> create my_secret -<\/code><\/pre>\n
To use this secreto<\/a><\/span>El concepto de \"secreto\" abarca informaci\u00f3n retenida de otros, a menudo por razones de privacidad, seguridad o confidencialidad. Comprender sus implicaciones es crucial en campos como la protecci\u00f3n de datos y la teor\u00eda de la comunicaci\u00f3n. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> en un servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, you can specify it as part of the servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> definition:<\/p>\n
docker servicio crear<\/a><\/span>El comando `docker service create` permite a los usuarios crear y desplegar un nuevo servicio en un Docker Swarm. Permite escalar, balancear la carga y gestionar aplicaciones contenerizadas a trav\u00e9s de m\u00faltiples nodos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --name my_service --secret my_secret nginx<\/code><\/pre>\n
El secreto<\/a><\/span>El concepto de \"secreto\" abarca informaci\u00f3n retenida de otros, a menudo por razones de privacidad, seguridad o confidencialidad. Comprender sus implicaciones es crucial en campos como la protecci\u00f3n de datos y la teor\u00eda de la comunicaci\u00f3n. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> will be accessible to the contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> at \/run\/secrets\/my_secret<\/code>.<\/p>\n
Gesti\u00f3n de Configuraciones<\/h3>\n
Docker Swarm tambi\u00e9n te permite gestionar datos de configuraci\u00f3n. Puedes crear una configuraci\u00f3n utilizando un comando similar:<\/p>\n
echo \"my_config_value\" | docker configuraci\u00f3n<\/a><\/span>La configuraci\u00f3n se refiere a los ajustes que determinan c\u00f3mo funciona el software o el hardware. Incluye par\u00e1metros que influyen en el rendimiento, la seguridad y la funcionalidad, permitiendo experiencias de usuario personalizadas. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> crear my_config<\/code><\/pre>\n
To use the configuration in a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n
docker servicio crear<\/a><\/span>El comando `docker service create` permite a los usuarios crear y desplegar un nuevo servicio en un Docker Swarm. Permite escalar, balancear la carga y gestionar aplicaciones contenerizadas a trav\u00e9s de m\u00faltiples nodos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --name my_service --config my_config nginx<\/code><\/pre>\n
The configuration will be accessible to the contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> at \/run\/configs\/my_config<\/code>.<\/p>\n
Monitoring and Logging in Docker Swarm<\/h2>\n
Monitoring and logging are critical for maintaining the health of your applications in a production environment. Docker Swarm does not come with built-in monitoring tools, but it integrates seamlessly with third-party solutions such as Prometheus, ELK Stack<\/a><\/span>A stack is a data structure that operates on a Last In, First Out (LIFO) principle, where the most recently added element is the first to be removed. It supports two primary operations: push and pop. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, and Grafana.<\/p>\n
Monitoring with Prometheus<\/h3>\n
Integrating Prometheus with Docker Swarm allows you to collect metrics from your containers and visualize them in real-time. You can use the following steps to set up Prometheus:<\/p>\n
    \n
  1. Deploy a Prometheus servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in your Swarm.<\/li>\n
  2. Configure sus servicios para exponer<\/a><\/span>\"EXPOSE\" es una herramienta eficaz utilizada en diversos campos, incluida la ciberseguridad y el desarrollo de software, para identificar vulnerabilidades y deficiencias en los sistemas, garantizando que se implementen medidas de seguridad robustas. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> m\u00e9tricas.<\/li>\n
  3. Configurar un archivo de configuraci\u00f3n de Prometheus para extraer m\u00e9tricas de tus servicios.\n\nPrometheus es una herramienta de monitoreo y alerta de c\u00f3digo abierto que recopila m\u00e9tricas de servicios configurados. Para configurar Prometheus para extraer m\u00e9tricas de tus servicios, sigue estos pasos:\n\n1. Instala Prometheus en tu sistema. Puedes descargar la \u00faltima versi\u00f3n desde el sitio web oficial de Prometheus.\n\n2. Crea un archivo de configuraci\u00f3n de Prometheus, generalmente llamado prometheus.yml. Este archivo define qu\u00e9 servicios monitorear y c\u00f3mo extraer sus m\u00e9tricas.\n\n3. En el archivo de configuraci\u00f3n, especifica los endpoints de tus servicios que Prometheus debe monitorear. Por ejemplo:\n\n```yaml\nglobal:\n  scrape_interval: 15s\n\nscrape_configs:\n  - job_name: 'servicio1'\n    static_configs:\n      - targets: ['localhost:9090']\n\n  - job_name: 'servicio2'\n    static_configs:\n      - targets: ['localhost:9091']\n```\n\nEn este ejemplo, Prometheus monitorear\u00e1 dos servicios: servicio1 en el puerto 9090 y servicio2 en el puerto 9091.\n\n4. Inicia Prometheus con el archivo de configuraci\u00f3n:\n\n```bash\nprometheus --config.file=prometheus.yml\n```\n\nPrometheus ahora comenzar\u00e1 a extraer m\u00e9tricas de los servicios especificados en el archivo de configuraci\u00f3n.\n\n5. Para visualizar las m\u00e9tricas extra\u00eddas, abre Prometheus en tu navegador web en http:\/\/localhost:9090. Desde all\u00ed, puedes explorar las m\u00e9tricas disponibles y crear paneles de control personalizados.\n\nRecuerda que tus servicios deben exponer un endpoint de m\u00e9tricas en el formato esperado por Prometheus (generalmente en formato Prometheus Exposition Format) para que Prometheus pueda extraer las m\u00e9tricas correctamente.<\/li>\n<\/ol>\n
    Registro de logs con ELK Stack<\/h3>\n
    El ELK Stack<\/a><\/span>A stack is a data structure that operates on a Last In, First Out (LIFO) principle, where the most recently added element is the first to be removed. It supports two primary operations: push and pop. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> (Elasticsearch, Logstash, Kibana) is a powerful solution for aggregating and visualizing logs. You can set up the ELK Stack<\/a><\/span>A stack is a data structure that operates on a Last In, First Out (LIFO) principle, where the most recently added element is the first to be removed. It supports two primary operations: push and pop. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> alongside Docker Swarm to centralize logging:<\/p>\n
      \n
    1. Deploy an Elasticsearch servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/li>\n
    2. Utiliza Logstash para recopilar registros de tus servicios y enviarlos a Elasticsearch.<\/li>\n
    3. Use Kibana para visualizar y analizar los logs.<\/li>\n<\/ol>\n
      Alta disponibilidad y tolerancia a fallos<\/h2>\n
      One of the key advantages of using Docker Swarm is its built-in high availability and fault tolerance features. Swarm automatically monitors the state of services and nodes, taking corrective actions to ensure that the desired state is maintained.<\/p>\n
      Node Failures<\/h3>\n
      Si un manager node<\/a><\/span>Un Nodo Gerente es un componente cr\u00edtico en los sistemas distribuidos, responsable de orquestar tareas, gestionar recursos y garantizar la tolerancia a fallos. Mantiene el estado del cl\u00faster y coordina la comunicaci\u00f3n entre los nodos trabajadores. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> fails, Docker Swarm will elect a new leader from the remaining manager nodes using the Raft consensus algorithm. This ensures that the cluster continues to operate smoothly even in the event of nodo<\/a><\/span>Node, o Node.js, es un entorno de ejecuci\u00f3n de JavaScript basado en el motor V8 de Chrome, que permite la programaci\u00f3n del lado del servidor. Permite a los desarrolladores construir aplicaciones de red escalables utilizando una arquitectura as\u00edncrona basada en eventos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> failures.<\/p>\n
      Service Failures<\/h3>\n
      Si un tarea<\/a><\/span>Una tarea es una pieza espec\u00edfica de trabajo o deber asignado a un individuo o sistema. Aborda objetivos definidos, recursos necesarios y resultados esperados, facilitando el progreso estructurado en diversos contextos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> fails or a contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> stops unexpectedly, Docker Swarm will automatically restart the tarea<\/a><\/span>Una tarea es una pieza espec\u00edfica de trabajo o deber asignado a un individuo o sistema. Aborda objetivos definidos, recursos necesarios y resultados esperados, facilitando el progreso estructurado en diversos contextos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> on the same or a different nodo de trabajo<\/a><\/span>A worker node is a computational unit within a distributed system, responsible for executing tasks assigned by a master node. It processes data, performs computations, and maintains system efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, ensuring that the desired number of replicas is maintained.<\/p>\n
      Advanced Docker Swarm Features<\/h2>\n
      Docker Swarm ofrece varias caracter\u00edsticas avanzadas que mejoran su funcionalidad:\n\n- **Redes de Overlay**: Docker Swarm crea autom\u00e1ticamente redes de overlay para la comunicaci\u00f3n entre contenedores en diferentes nodos. Estas redes permiten que los contenedores se comuniquen entre s\u00ed como si estuvieran en la misma red, independientemente de su ubicaci\u00f3n f\u00edsica.\n\n- **Balanceo de Carga**: Swarm incluye un balanceador de carga integrado que distribuye el tr\u00e1fico entrante entre los contenedores de una tarea. Esto garantiza que ninguna instancia individual se sobrecargue y que la aplicaci\u00f3n permanezca receptiva incluso bajo una carga pesada.\n\n- **Actualizaciones Continuas**: Docker Swarm admite actualizaciones continuas, lo que permite actualizar las aplicaciones sin tiempo de inactividad. Las nuevas versiones de los servicios se implementan gradualmente, y Swarm monitorea la salud de las nuevas instancias antes de reemplazar completamente las antiguas.\n\n- **Almacenamiento Distribuido**: Swarm puede utilizar vol\u00famenes de Docker para proporcionar almacenamiento persistente para los contenedores. Estos vol\u00famenes pueden distribuirse en m\u00faltiples nodos, garantizando que los datos est\u00e9n disponibles incluso si un nodo falla.\n\n- **Escalado Autom\u00e1tico**: Docker Swarm puede escalar autom\u00e1ticamente los servicios seg\u00fan la demanda. Cuando la carga aumenta, Swarm puede crear autom\u00e1ticamente m\u00e1s instancias de un servicio para manejar el tr\u00e1fico adicional.\n\n- **Descubrimiento de Servicios**: Swarm incluye un mecanismo de descubrimiento de servicios incorporado que permite a los contenedores encontrar y comunicarse entre s\u00ed sin configuraci\u00f3n manual. Esto simplifica el proceso de construcci\u00f3n y despliegue de aplicaciones distribuidas.\n\n- **Seguridad**: Docker Swarm proporciona varias caracter\u00edsticas de seguridad, incluyendo el cifrado de la comunicaci\u00f3n entre nodos, la autenticaci\u00f3n de clientes y la autorizaci\u00f3n basada en roles. Estas caracter\u00edsticas ayudan a proteger el cl\u00faster contra el acceso no autorizado y las amenazas potenciales.\n\n- **Integraci\u00f3n con Docker Compose**: Docker Swarm se integra perfectamente con Docker Compose, lo que permite definir y administrar aplicaciones de m\u00faltiples contenedores utilizando archivos YAML. Esto facilita el despliegue y la gesti\u00f3n de aplicaciones complejas en un entorno Swarm.\n\n- **Monitoreo y Registro**: Swarm proporciona herramientas integradas para monitorear la salud de los servicios y recopilar registros de los contenedores. Esto ayuda a los administradores a identificar y resolver problemas r\u00e1pidamente, garantizando la confiabilidad general del cl\u00faster.\n\n- **Extensibilidad**: Docker Swarm es altamente extensible, lo que permite a los usuarios agregar complementos y herramientas de terceros para mejorar su funcionalidad. Esto incluye integraciones con sistemas de orquestaci\u00f3n populares como Kubernetes y Mesos.\n\nEstas caracter\u00edsticas avanzadas hacen de Docker Swarm una herramienta poderosa para administrar y orquestar contenedores en un entorno de producci\u00f3n. Al aprovechar estas capacidades, las organizaciones pueden construir aplicaciones escalables, confiables y seguras que puedan manejar las demandas de las cargas de trabajo modernas.<\/p>\n
      Rolling Updates<\/h3>\n
      Rolling updates allow you to update your services without downtime. When you deploy a new version of a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, Swarm updates the replicas gradually, ensuring that a specified number of replicas are always running. You can configure the update parameters with the following command:<\/p>\n
      docker service update<\/a><\/span>Docker Service Update enables seamless updates to running services in a Swarm cluster. It facilitates rolling updates, ensuring minimal downtime while maintaining service availability and stability. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --image nginx:latest --update-parallelism 1 --update-delay 10s my_service<\/code><\/pre>\n
      Service Constraints<\/h3>\n
      Servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> constraints allow you to control where services run<\/a><\/span>\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in the Swarm. For example, you can specify that a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> should only run<\/a><\/span>\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> on nodes with a specific label<\/a><\/span>En los sistemas de gesti\u00f3n y clasificaci\u00f3n de datos, una \"etiqueta\" sirve como descriptor que categoriza e identifica elementos. Las etiquetas mejoran la organizaci\u00f3n de datos, facilitan la recuperaci\u00f3n y mejoran la comprensi\u00f3n dentro de conjuntos de datos complejos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n
      docker servicio crear<\/a><\/span>El comando `docker service create` permite a los usuarios crear y desplegar un nuevo servicio en un Docker Swarm. Permite escalar, balancear la carga y gestionar aplicaciones contenerizadas a trav\u00e9s de m\u00faltiples nodos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --name my_service --constraint 'nodo<\/a><\/span>Node, o Node.js, es un entorno de ejecuci\u00f3n de JavaScript basado en el motor V8 de Chrome, que permite la programaci\u00f3n del lado del servidor. Permite a los desarrolladores construir aplicaciones de red escalables utilizando una arquitectura as\u00edncrona basada en eventos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.labels.my_label == true' nginx<\/code><\/pre>\n
      Gesti\u00f3n de Recursos<\/h3>\n
      Docker Swarm allows you to define resource limits for services, ensuring that no single servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> can consume all the resources of a nodo<\/a><\/span>Node, o Node.js, es un entorno de ejecuci\u00f3n de JavaScript basado en el motor V8 de Chrome, que permite la programaci\u00f3n del lado del servidor. Permite a los desarrolladores construir aplicaciones de red escalables utilizando una arquitectura as\u00edncrona basada en eventos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. You can specify CPU and memory limits when creating a servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n
      docker servicio crear<\/a><\/span>El comando `docker service create` permite a los usuarios crear y desplegar un nuevo servicio en un Docker Swarm. Permite escalar, balancear la carga y gestionar aplicaciones contenerizadas a trav\u00e9s de m\u00faltiples nodos. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --name my_service --limit-cpu 0.5 --limit-memory 512M nginx<\/code><\/pre>\n
      Conclusi\u00f3n<\/h2>\n
      Docker Swarm provides a robust platform for contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> orchestration<\/a><\/span>Orchestration refers to the automated management and coordination of complex systems and services. It optimizes processes by integrating various components, ensuring efficient operation and resource utilization. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, enabling developers and system administrators to deploy, manage, and scale containerized applications with ease. Its native clustering capabilities, combined with features such as servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> discovery, load balancing<\/a><\/span>El balanceo de carga es una t\u00e9cnica fundamental de gesti\u00f3n de redes que distribuye el tr\u00e1fico entrante entre m\u00faltiples servidores. Esto garantiza una utilizaci\u00f3n \u00f3ptima de los recursos, minimiza el tiempo de respuesta y mejora la disponibilidad de las aplicaciones. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, and secrets management, make it an ideal choice for microservices architectures.<\/p>\n
      By understanding the architecture, setup, servicio<\/a><\/span>Service refers to the act of providing assistance or support to fulfill specific needs or requirements. In various domains, it encompasses customer service, technical support, and professional services, emphasizing efficiency and user satisfaction. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> management, networking, and advanced features of Docker Swarm, you can leverage its full potential to create resilient and scalable applications. Whether you are working on a small project or a large enterprise application, mastering Docker Swarm is an essential step towards effective contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> orchestration<\/a><\/span>Orchestration refers to the automated management and coordination of complex systems and services. It optimizes processes by integrating various components, ensuring efficient operation and resource utilization. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in a distributed environment.<\/p>","protected":false},"excerpt":{"rendered":"
      Docker Swarm is a contenedor<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> orchestration<\/a><\/span>Orchestration refers to the automated management and coordination of complex systems and services. It optimizes processes by integrating various components, ensuring efficient operation and resource utilization. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> Herramienta que permite la gesti\u00f3n de un cl\u00faster de motores Docker. Simplifica escalar<\/a><\/span>Scaling refers to the process of adjusting the capacity of a system to accommodate varying loads. It can be achieved through vertical scaling, which enhances existing resources, or horizontal scaling, which adds additional resources. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> and deployment, ensuring high availability and load balancing<\/a><\/span>El balanceo de carga es una t\u00e9cnica fundamental de gesti\u00f3n de redes que distribuye el tr\u00e1fico entrante entre m\u00faltiples servidores. Esto garantiza una utilizaci\u00f3n \u00f3ptima de los recursos, minimiza el tiempo de respuesta y mejora la disponibilidad de las aplicaciones. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> entre servicios.<\/p>","protected":false},"author":1,"featured_media":1426,"parent":0,"template":"","glossary-cat":[],"class_list":["post-655","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nDocker Swarm - Dockerpros<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dockerpros.com\/es\/wiki\/docker-swarm\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Docker Swarm - Dockerpros\" \/>\n<meta property=\"og:description\" content=\"Docker Swarm is a container orchestration tool that enables the management of a cluster of Docker engines. 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