{"id":963,"date":"2026-01-02T11:55:04","date_gmt":"2026-01-02T10:55:04","guid":{"rendered":"https:\/\/vermiip.es\/blog\/?p=963"},"modified":"2026-01-02T11:55:05","modified_gmt":"2026-01-02T10:55:05","slug":"docker-compose-hola-mundo-en-docker-compose-yml","status":"publish","type":"post","link":"https:\/\/vermiip.es\/blog\/docker-compose-hola-mundo-en-docker-compose-yml\/","title":{"rendered":"Docker Compose: Hola mundo en docker-compose.yml"},"content":{"rendered":"<p>Docker Compose es una herramienta que facilita la gesti\u00f3n de aplicaciones multi-contenedor en Docker. Gracias a su archivo de configuraci\u00f3n <code>docker-compose.yml<\/code>, puedes definir y ejecutar todos los componentes necesarios para poner en marcha una aplicaci\u00f3n sencilla o compleja. En este art\u00edculo, aprenderemos a crear un primer ejemplo pr\u00e1ctico de un archivo <code>docker-compose.yml<\/code> que nos ayudar\u00e1 a entender los conceptos fundamentales de Docker Compose.<\/p>\n<h2>\u00bfQu\u00e9 es Docker Compose?<\/h2>\n<p>Docker Compose es una herramienta que permite definir y ejecutar aplicaciones compuestas por m\u00faltiples contenedores. A trav\u00e9s de un archivo de configuraci\u00f3n en formato YAML, se pueden especificar los servicios, redes y vol\u00famenes que componen la aplicaci\u00f3n. Esto es particularmente \u00fatil para desarrollos y entornos de pruebas, donde la replicaci\u00f3n del entorno de producci\u00f3n es clave.<\/p>\n<h2>Instalaci\u00f3n de Docker y Docker Compose<\/h2>\n<p>Antes de comenzar a trabajar con Docker Compose, aseg\u00farate de tener Docker instalado en tu m\u00e1quina. La instalaci\u00f3n incluye Docker Compose en versiones recientes. Para verificar si tienes Docker y Docker Compose correctamente instalados, utiliza los siguientes comandos:<\/p>\n<pre><code>docker --version\ndocker-compose --version\n<\/code><\/pre>\n<p>Si no tienes Docker instalado, puedes seguir las instrucciones en la <a href=\"https:\/\/docs.docker.com\/get-docker\/\">documentaci\u00f3n oficial de Docker<\/a>.<\/p>\n<h2>Creando tu primer archivo docker-compose.yml<\/h2>\n<p>Comencemos creando un archivo b\u00e1sico <code>docker-compose.yml<\/code> que ejecutar\u00e1 una aplicaci\u00f3n web simple utilizando Nginx. Este ser\u00e1 un ejemplo ideal para entender c\u00f3mo funciona la estructura del archivo y c\u00f3mo se levantan los servicios.<\/p>\n<h3>Estructura del archivo docker-compose.yml<\/h3>\n<p>A continuaci\u00f3n, te mostramos la estructura del archivo <code>docker-compose.yml<\/code> que vamos a crear:<\/p>\n<pre><code>version: '3.8'\n\nservices:\n  web:\n    image: nginx:alpine\n    ports:\n      - \"8080:80\"\n    volumes:\n      - .\/html:\/usr\/share\/nginx\/html\n<\/code><\/pre>\n<h3>Descripci\u00f3n de cada secci\u00f3n<\/h3>\n<ul>\n<li><strong>version:<\/strong> Especifica la versi\u00f3n del formato del archivo YAML que est\u00e1s utilizando (en este caso, &#8216;3.8&#8217;).<\/li>\n<li><strong>services:<\/strong> Define los servicios que conforman la aplicaci\u00f3n. En este caso, solo hay un servicio llamado <code>web<\/code>.<\/li>\n<li><strong>image:<\/strong> Especifica la imagen de Docker que se utilizar\u00e1. Aqu\u00ed usamos <code>nginx:alpine<\/code>, que es una versi\u00f3n ligera de Nginx.<\/li>\n<li><strong>ports:<\/strong> Mapea el puerto 80 del contenedor al puerto 8080 de tu m\u00e1quina local.<\/li>\n<li><strong>volumes:<\/strong> Permite enlazar el directorio local <code>.\/html<\/code> al directorio donde Nginx busca los archivos HTML.<\/li>\n<\/ul>\n<h3>Creando la estructura de archivos<\/h3>\n<p>Ahora, dentro de tu directorio de trabajo, crea una carpeta llamada <code>html<\/code>. En esta carpeta, coloca un archivo llamado <code>index.html<\/code> con el siguiente contenido:<\/p>\n<pre><code>&lt;!DOCTYPE html&gt;\n&lt;html lang=\"es\"&gt;\n&lt;head&gt;\n    &lt;meta charset=\"UTF-8\"&gt;\n    &lt;title&gt;Hola Mundo desde Nginx&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n    &lt;h1&gt;\u00a1Hola Mundo! Bienvenido a Nginx en Docker Compose.&lt;\/h1&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<h2>Ejecuci\u00f3n de la aplicaci\u00f3n<\/h2>\n<p>Con el archivo <code>docker-compose.yml<\/code> y el contenido HTML preparados, es momento de levantar la aplicaci\u00f3n. Abre tu terminal, navega al directorio donde guardaste el archivo <code>docker-compose.yml<\/code> y ejecuta el siguiente comando:<\/p>\n<pre><code>docker-compose up\n<\/code><\/pre>\n<p>Al ejecutar el comando anterior, Docker Compose descargar\u00e1 la imagen de Nginx si no est\u00e1 presente localmente, crear\u00e1 el contenedor y levantar\u00e1 el servicio. Ver\u00e1s en la terminal los logs de Nginx.<\/p>\n<p>Una vez que todo est\u00e9 en marcha, abre tu navegador y dir\u00edgete a <code>http:\/\/localhost:8080<\/code>. Deber\u00edas ver el mensaje \u201c\u00a1Hola Mundo! Bienvenido a Nginx en Docker Compose.\u201d.<\/p>\n<h2>Conclusiones<\/h2>\n<p>Docker Compose simplifica la orquestaci\u00f3n de aplicaciones que requieren m\u00faltiples contenedores y recursos. En este tutorial, hemos creado un archivo <code>docker-compose.yml<\/code> sencillo y hemos levantado un servidor Nginx que sirve contenido est\u00e1tico. Este es solo el comienzo y puedes extender esto para manejar bases de datos, servicios de backend, y m\u00e1s.<\/p>\n<p>Para m\u00e1s informaci\u00f3n sobre Docker y Docker Compose, no dudes en consultar nuestros otros art\u00edculos relacionados donde profundizamos en otras caracter\u00edsticas y comandos.<\/p>\n<h3>Fuentes y lecturas recomendadas<\/h3>\n<ul>\n<li><a href=\"https:\/\/docs.docker.com\/compose\/\">Documentaci\u00f3n oficial de Docker Compose<\/a><\/li>\n<li><a href=\"https:\/\/vermiip.es\/blog\/docker-compose-estructura-basica\">Docker Compose: Estructura b\u00e1sica<\/a><\/li>\n<li><a href=\"https:\/\/www.digitalocean.com\/community\/tutorials\/understanding-docker-compose\">Entendiendo Docker Compose<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Docker Compose es una herramienta que facilita la gesti\u00f3n de aplicaciones multi-contenedor en Docker. Gracias a su archivo de configuraci\u00f3n docker-compose.yml, puedes definir y ejecutar todos los componentes necesarios para poner en marcha una aplicaci\u00f3n sencilla o compleja. En este art\u00edculo, aprenderemos a crear un primer ejemplo pr\u00e1ctico de un archivo docker-compose.yml que nos ayudar\u00e1 a entender los conceptos fundamentales de Docker Compose.<\/p>\n","protected":false},"author":1,"featured_media":964,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[183],"tags":[224,127],"class_list":["post-963","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-docker","tag-docker-compose","tag-hola-mundo"],"_wp_attached_file":null,"_wp_attachment_metadata":null,"_wp_old_slug":null,"_aioseop_description":null,"_wp_attachment_image_alt":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Docker Compose: Hola mundo en docker-compose.yml - Ver mi IP<\/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:\/\/vermiip.es\/blog\/docker-compose-hola-mundo-en-docker-compose-yml\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Docker Compose: Hola mundo en docker-compose.yml - Ver mi IP\" \/>\n<meta property=\"og:description\" content=\"Docker Compose es una herramienta que facilita la gesti\u00f3n de aplicaciones multi-contenedor en Docker. Gracias a su archivo de configuraci\u00f3n docker-compose.yml, puedes definir y ejecutar todos los componentes necesarios para poner en marcha una aplicaci\u00f3n sencilla o compleja. 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