{"id":1329,"date":"2024-07-23T12:21:18","date_gmt":"2024-07-23T12:21:18","guid":{"rendered":"https:\/\/dockerpros.com\/?post_type=glossary&#038;p=1329"},"modified":"2024-07-23T12:23:35","modified_gmt":"2024-07-23T12:23:35","slug":"etiqueta-de-dockerfile","status":"publish","type":"glossary","link":"https:\/\/dockerpros.com\/es\/wiki\/dockerfile-tag\/","title":{"rendered":"Dockerfile \u2013etiqueta"},"content":{"rendered":"<h1>Gu\u00eda completa sobre Dockerfile --tag: Una explicaci\u00f3n detallada<\/h1>\n<p>En el \u00e1mbito de la contenerizaci\u00f3n, Docker ha emergido como una potencia, facilitando la creaci\u00f3n, despliegue y gesti\u00f3n de aplicaciones en contenedores ligeros y port\u00e1tiles. Uno de los aspectos fundamentales al trabajar con Docker es el <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, a script containing a series of instructions to assemble an <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. Entre estas instrucciones, the <code>--etiqueta<\/code> (or <code>-t<\/code>) option plays a crucial role in labeling the images you create, allowing for easier identification, management, and versioning of your Docker images. This article delves into the intricacies of the <code>--etiqueta<\/code> opci\u00f3n en Dockerfiles, su uso, beneficios, mejores pr\u00e1cticas y conceptos avanzados relacionados.<\/p>\n<h2>\u00bfQu\u00e9 es el <code>--etiqueta<\/code> \u00bfOpci\u00f3n?<\/h2>\n<p>El <code>--etiqueta<\/code> option in Docker is used primarily when building images from a <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. Its principal function is to <span class=\"glossaryai-tooltip glossary-term-674\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/add\/\" target=\"_blank\">a\u00f1adir<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">La instrucci\u00f3n ADD en Docker es un comando utilizado en Dockerfiles para copiar archivos y directorios desde una m\u00e1quina anfitriona hacia una imagen de Docker durante el proceso de construcci\u00f3n. No solo facilita la transferencia de archivos locales, sino que tambi\u00e9n proporciona funcionalidades adicionales, como extraer autom\u00e1ticamente archivos comprimidos y obtener archivos remotos a trav\u00e9s de HTTP o HTTPS.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/add\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> a tag to the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> being built, which consists of a name and an optional version identifier. By convention, the format for tagging an <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> es <code><span class=\"glossaryai-tooltip glossary-term-659\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\" target=\"_blank\">repositorio<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un repositorio es una ubicaci\u00f3n centralizada donde se almacenan, gestionan y mantienen datos, c\u00f3digo o documentos. Facilita el control de versiones, la colaboraci\u00f3n y el intercambio eficiente de recursos entre los usuarios.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\">More \u00bb<\/a><\/span><\/span><span class=\"gai-tooltip-video-wrapper\"><span class=\"gai-tooltip-video\" data-src=\"https:\/\/www.youtube.com\/embed\/_OXj8BGxNPY?rel=0&#038;modestbranding=1\"><\/span><\/span><\/span><\/span><\/span>:etiqueta<\/code>, donde <code><span class=\"glossaryai-tooltip glossary-term-659\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\" target=\"_blank\">repositorio<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un repositorio es una ubicaci\u00f3n centralizada donde se almacenan, gestionan y mantienen datos, c\u00f3digo o documentos. Facilita el control de versiones, la colaboraci\u00f3n y el intercambio eficiente de recursos entre los usuarios.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\">More \u00bb<\/a><\/span><\/span><span class=\"gai-tooltip-video-wrapper\"><span class=\"gai-tooltip-video\" data-src=\"https:\/\/www.youtube.com\/embed\/_OXj8BGxNPY?rel=0&#038;modestbranding=1\"><\/span><\/span><\/span><\/span><\/span><\/code> is the name under which the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> will be stored (often on <span class=\"glossaryai-tooltip glossary-term-653\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/docker-hub\/\" target=\"_blank\">Docker Hub<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Docker Hub es un repositorio basado en la nube para almacenar y compartir im\u00e1genes de contenedores. Facilita el control de versiones, el desarrollo colaborativo y la integraci\u00f3n perfecta con Docker CLI para una gesti\u00f3n eficiente de contenedores.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/docker-hub\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> or a <span class=\"glossaryai-tooltip glossary-term-737\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/private-registry\/\" target=\"_blank\">registro privado<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un registro privado es un repositorio seguro para administrar y almacenar im\u00e1genes de contenedores, lo que permite a las organizaciones controlar el acceso, mejorar la seguridad y agilizar los procesos de implementaci\u00f3n dentro de su infraestructura.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/private-registry\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>), y <code>tag<\/code> es opcional <span class=\"glossaryai-tooltip glossary-term-678\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/label\/\" target=\"_blank\">label<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/label\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> that represents the version of the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. If no tag is specified, Docker automatically assigns the <code>latest<\/code> etiqueta por defecto.<\/p>\n<p>For instance, if you have a <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to build a web application, you might choose to tag your <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> de la siguiente manera:<\/p>\n<pre><code class=\"language-bash\">docker build --tag my-web-app:v1.0 .<\/code><\/pre>\n<p>En este comando, <code>my-web-app<\/code> es el <span class=\"glossaryai-tooltip glossary-term-659\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\" target=\"_blank\">repositorio<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un repositorio es una ubicaci\u00f3n centralizada donde se almacenan, gestionan y mantienen datos, c\u00f3digo o documentos. Facilita el control de versiones, la colaboraci\u00f3n y el intercambio eficiente de recursos entre los usuarios.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\">More \u00bb<\/a><\/span><\/span><span class=\"gai-tooltip-video-wrapper\"><span class=\"gai-tooltip-video\" data-src=\"https:\/\/www.youtube.com\/embed\/_OXj8BGxNPY?rel=0&#038;modestbranding=1\"><\/span><\/span><\/span><\/span><\/span> name, and <code>v1.0<\/code> is the version tag. This structured approach contributes to better <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> management and facilitates a smooth deployment process.<\/p>\n<h2>\u00bfPor Qu\u00e9 Usar Etiquetas?<\/h2>\n<p>El uso de etiquetas en tus im\u00e1genes de Docker es esencial por varias razones:\n\n1. **Versionamiento**: Las etiquetas te permiten mantener diferentes versiones de una imagen. Por ejemplo, puedes tener una etiqueta \"latest\" para la versi\u00f3n m\u00e1s reciente y etiquetas espec\u00edficas como \"v1.0\" o \"v2.0\" para versiones anteriores. Esto facilita la gesti\u00f3n y el despliegue de diferentes versiones de tu aplicaci\u00f3n.\n\n2. **Organizaci\u00f3n**: Las etiquetas ayudan a organizar tus im\u00e1genes de manera l\u00f3gica. Puedes usar etiquetas para indicar el entorno (por ejemplo, \"dev\", \"test\", \"prod\") o para agrupar im\u00e1genes relacionadas. Esto mejora la claridad y la gesti\u00f3n de tus recursos.\n\n3. **Reproducibilidad**: Al usar etiquetas espec\u00edficas, puedes asegurarte de que siempre est\u00e1s utilizando la misma versi\u00f3n de una imagen. Esto es crucial para la reproducibilidad en entornos de desarrollo y producci\u00f3n, ya que garantiza que todos los despliegues se basen en la misma base de c\u00f3digo.\n\n4. **Seguridad**: Las etiquetas pueden incluir informaci\u00f3n sobre la seguridad de una imagen, como la fecha de la \u00faltima actualizaci\u00f3n o la presencia de vulnerabilidades conocidas. Esto te permite tomar decisiones informadas sobre qu\u00e9 im\u00e1genes usar en tus despliegues.\n\n5. **Colaboraci\u00f3n**: En equipos de desarrollo, las etiquetas facilitan la colaboraci\u00f3n al proporcionar una forma clara de referirse a versiones espec\u00edficas de una imagen. Esto reduce la confusi\u00f3n y mejora la comunicaci\u00f3n entre los miembros del equipo.\n\n6. **Automatizaci\u00f3n**: Las etiquetas son fundamentales para la automatizaci\u00f3n de procesos de construcci\u00f3n y despliegue. Herramientas como Jenkins, GitLab CI\/CD y otros sistemas de integraci\u00f3n continua pueden utilizar etiquetas para desencadenar acciones espec\u00edficas, como la construcci\u00f3n de una nueva imagen o el despliegue en un entorno determinado.\n\n7. **Auditor\u00eda y cumplimiento**: Las etiquetas pueden incluir metadatos que facilitan la auditor\u00eda y el cumplimiento de normativas. Por ejemplo, puedes etiquetar im\u00e1genes con informaci\u00f3n sobre la licencia del software o los requisitos de cumplimiento espec\u00edficos.\n\nEn resumen, el uso de etiquetas en tus im\u00e1genes de Docker es una pr\u00e1ctica recomendada que mejora la gesti\u00f3n, la seguridad, la colaboraci\u00f3n y la automatizaci\u00f3n de tus despliegues.<\/p>\n<h3>1. <strong>Control de Versiones<\/strong><\/h3>\n<p>Las etiquetas permiten el control de versiones de tus im\u00e1genes. Al etiquetar im\u00e1genes con n\u00fameros de versi\u00f3n espec\u00edficos (por ejemplo, <code>v1.0<\/code>, <code>v1.1<\/code>, etc.), you can easily roll back to a previous version if needed. This is particularly useful in production environments where stability is paramount.<\/p>\n<h3>2. <strong>Claridad y Organizaci\u00f3n<\/strong><\/h3>\n<p>Las etiquetas proporcionan claridad y organizaci\u00f3n a tus im\u00e1genes de Docker. Al utilizar etiquetas significativas, como indicar el entorno (por ejemplo, <code>development<\/code>, <code>staging<\/code>, o <code>production<\/code>), you can easily identify the purpose of each <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> without confusion.<\/p>\n<h3>3. <strong>Colaboraci\u00f3n<\/strong><\/h3>\n<p>In collaborative environments, multiple developers may be working on the same project. Tags help maintain consistent <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> versions across different team members and ensure that everyone is working with the same base.<\/p>\n<h3>4. <strong>Automated Deployments<\/strong><\/h3>\n<p>Tags are crucial for automated deployment pipelines. Continuous Integration\/Continuous Deployment (CI\/CD) systems can use tags to determine which version of an <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to deploy. By tagging images appropriately, you ensure that the correct version is deployed in the right environment.<\/p>\n<h2>How to Use the <code>--etiqueta<\/code> Option<\/h2>\n<p>Para utilizar eficazmente el <code>--etiqueta<\/code> opci\u00f3n, necesitas entender su colocaci\u00f3n en el <code>docker build<\/code> comando y las implicaciones del etiquetado.<\/p>\n<h3>Sintaxis b\u00e1sica<\/h3>\n<p>La sintaxis b\u00e1sica para usar el <code>--etiqueta<\/code> opci\u00f3n en el <code>docker build<\/code> El comando es:<\/p>\n<pre><code class=\"language-bash\">docker build --tag : <\/code><\/pre>\n<p>Here, &#8220; represents the build context, which is usually the path to your <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> and any files it needs to build the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n<h3>Ejemplo de uso<\/h3>\n<p>Let\u2019s consider a practical example. Assume you have a simple web application with a <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> located in the application&#8217;s root directory. You can build the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> and tag it using the following command:<\/p>\n<pre><code class=\"language-bash\">docker build --etiqueta my-web-app:latest .<\/code><\/pre>\n<p>This command builds the Docker <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> from the provided <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> and assigns it the tag <code>my-web-app:latest<\/code>.<\/p>\n<h3>Multiple Tags<\/h3>\n<p>You can tag an <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> with multiple tags in a single build command by using the <code>--etiqueta<\/code> opci\u00f3n m\u00faltiples veces<\/p>\n<pre><code class=\"language-bash\">docker build --tag my-web-app:latest --tag my-web-app:v1.0 .<\/code><\/pre>\n<p>This approach allows you to maintain a clear versioning structure while also keeping the latest version accessible.<\/p>\n<h2>Mejores Pr\u00e1cticas para el Etiquetado<\/h2>\n<p>To maximize the benefits of tagging images, here are some best practices to consider:<\/p>\n<h3>1. <strong>Use Semantic Versioning<\/strong><\/h3>\n<p>Adopta una estrategia de versionado consistente, como Semantic Versioning (SemVer). Este m\u00e9todo utiliza un n\u00famero de versi\u00f3n de tres partes: <code>Mayor.Menor.Parche<\/code>. Por ejemplo, si introduces un cambio que rompe la compatibilidad, incrementa la versi\u00f3n mayor; para nuevas caracter\u00edsticas, incrementa la versi\u00f3n menor; y para correcciones de errores, incrementa la versi\u00f3n de parche.<\/p>\n<h3>2. <strong>Avoid <code>latest<\/code> Cuando sea posible<\/strong><\/h3>\n<p>While using the <code>latest<\/code> tag is convenient, it can lead to ambiguity. It is often unclear which version of the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is actually running. Instead, prefer specific version tags when deploying in production environments.<\/p>\n<h3>3. <strong>Use Descriptive Tags<\/strong><\/h3>\n<p>Choose descriptive tags that convey meaningful information about the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, such as the environment or the purpose of the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. For example, tags like <code>mi-aplicacion-web:desarrollo<\/code> or <code>mi-aplicacion-web:prod<\/code> Proporcionar contexto \u00fatil.<\/p>\n<h3>4. <strong>Limpiar etiquetas antiguas<\/strong><\/h3>\n<p>Regularly review and clean up old and unused tags from your Docker environment. This practice helps save disk space and keeps your <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> <span class=\"glossaryai-tooltip glossary-term-659\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\" target=\"_blank\">repositorio<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un repositorio es una ubicaci\u00f3n centralizada donde se almacenan, gestionan y mantienen datos, c\u00f3digo o documentos. Facilita el control de versiones, la colaboraci\u00f3n y el intercambio eficiente de recursos entre los usuarios.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/repository\/\">More \u00bb<\/a><\/span><\/span><span class=\"gai-tooltip-video-wrapper\"><span class=\"gai-tooltip-video\" data-src=\"https:\/\/www.youtube.com\/embed\/_OXj8BGxNPY?rel=0&#038;modestbranding=1\"><\/span><\/span><\/span><\/span><\/span> organized.<\/p>\n<h3>5. <strong>Automatizaci\u00f3n de etiquetado en CI\/CD\n\nEn el mundo del desarrollo de software, la integraci\u00f3n continua y la entrega continua (CI\/CD) son pr\u00e1cticas fundamentales para garantizar la calidad y la eficiencia del proceso de desarrollo. Una parte crucial de este proceso es el etiquetado de versiones, que permite identificar y rastrear diferentes versiones de un software a lo largo de su ciclo de vida.\n\nEl etiquetado manual de versiones puede ser propenso a errores y consumir mucho tiempo, especialmente en proyectos grandes con m\u00faltiples colaboradores. Es aqu\u00ed donde la automatizaci\u00f3n del etiquetado en CI\/CD se vuelve invaluable. Al automatizar este proceso, los equipos de desarrollo pueden garantizar la consistencia, reducir errores y ahorrar tiempo valioso.\n\nExisten varias herramientas y enfoques para automatizar el etiquetado en CI\/CD:\n\n1. Git Hooks: Los hooks de Git son scripts que se ejecutan autom\u00e1ticamente en respuesta a eventos espec\u00edficos en un repositorio de Git. Se pueden utilizar para automatizar el proceso de etiquetado cuando se crea una nueva versi\u00f3n o se fusiona una rama.\n\n2. Acciones de GitHub: Para los proyectos alojados en GitHub, las Acciones de GitHub proporcionan una forma poderosa de automatizar flujos de trabajo, incluido el etiquetado de versiones. Se pueden configurar para que se ejecuten en eventos espec\u00edficos, como la creaci\u00f3n de una nueva versi\u00f3n o la fusi\u00f3n de una solicitud de extracci\u00f3n.\n\n3. GitLab CI\/CD: Similar a las Acciones de GitHub, GitLab CI\/CD ofrece una forma de automatizar el etiquetado de versiones como parte de la canalizaci\u00f3n de CI\/CD. Se pueden definir scripts personalizados para crear etiquetas basadas en reglas predefinidas o desencadenantes.\n\n4. Jenkins: Jenkins es una herramienta popular de automatizaci\u00f3n de CI\/CD que se puede configurar para automatizar el etiquetado de versiones como parte de la canalizaci\u00f3n de compilaci\u00f3n. Se pueden utilizar plugins y scripts personalizados para crear etiquetas basadas en criterios espec\u00edficos.\n\n5. Herramientas de gesti\u00f3n de versiones: Algunas herramientas de gesti\u00f3n de versiones, como Semantic Versioning (SemVer), proporcionan directrices y herramientas para automatizar el proceso de etiquetado basado en reglas predefinidas.\n\nAl automatizar el etiquetado en CI\/CD, los equipos de desarrollo pueden garantizar que cada versi\u00f3n de su software est\u00e9 correctamente etiquetada y sea f\u00e1cilmente identificable. Esto no solo mejora la trazabilidad y la capacidad de auditor\u00eda, sino que tambi\u00e9n facilita la implementaci\u00f3n y el mantenimiento de diferentes versiones del software.\n\nAdem\u00e1s, la automatizaci\u00f3n del etiquetado puede integrarse con otras herramientas y procesos de CI\/CD, como las pruebas automatizadas, la implementaci\u00f3n y la monitorizaci\u00f3n. Esto crea un flujo de trabajo cohesivo y eficiente que abarca todo el ciclo de vida del desarrollo de software.\n\nEn conclusi\u00f3n, la automatizaci\u00f3n del etiquetado en CI\/CD es una pr\u00e1ctica valiosa que puede mejorar significativamente la eficiencia y la calidad del proceso de desarrollo de software. Al aprovechar las herramientas y enfoques adecuados, los equipos de desarrollo pueden garantizar la consistencia, reducir errores y ahorrar tiempo valioso en el proceso de etiquetado de versiones.<\/strong><\/h3>\n<p>Integra el etiquetado en tus pipelines de CI\/CD para automatizar el proceso de versionamiento de tus im\u00e1genes. Puedes generar etiquetas din\u00e1micamente basadas en el n\u00famero de compilaci\u00f3n, el hash del commit o la versi\u00f3n de lanzamiento.<\/p>\n<h2>Conceptos avanzados relacionados con <code>--etiqueta<\/code><\/h2>\n<h3>Building Multistage Images<\/h3>\n<p>Las compilaciones multietapa permiten crear im\u00e1genes m\u00e1s peque\u00f1as y eficientes al separar los entornos de desarrollo y producci\u00f3n. Puedes etiquetar cada etapa del proceso de compilaci\u00f3n, lo que puede ser \u00fatil para depurar y optimizar. <span class=\"glossaryai-tooltip glossary-term-739\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image-layers\/\" target=\"_blank\">image layers<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Las capas son componentes fundamentales en el software de dise\u00f1o y edici\u00f3n gr\u00e1fica, permitiendo la manipulaci\u00f3n no destructiva de elementos. Cada capa puede contener im\u00e1genes, efectos o ajustes diferentes, lo que posibilita un control preciso sobre la composici\u00f3n y los efectos visuales.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image-layers\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n<p>Here\u2019s a simple example of a multistage <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n<pre><code class=\"language-Dockerfile\"># Builder stage\nFROM <span class=\"glossaryai-tooltip glossary-term-684\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/node\/\" target=\"_blank\">nodo<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/node\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:14 AS builder\n<span class=\"glossaryai-tooltip glossary-term-675\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/workdir\/\" target=\"_blank\">WORKDIR<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">La instrucci\u00f3n `WORKDIR` en Dockerfile establece el directorio de trabajo para las instrucciones posteriores. Simplifica la gesti\u00f3n de rutas, ya que todas las rutas relativas se resolver\u00e1n desde este directorio, mejorando la claridad de la compilaci\u00f3n.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/workdir\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> \/app\n<span class=\"glossaryai-tooltip glossary-term-673\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/copy\/\" target=\"_blank\">COPIA<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">COPY is a command in computer programming and data management that facilitates the duplication of files or data from one location to another, ensuring data integrity and accessibility.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/copy\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> package*.json en el directorio actual\n<span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">CORRE<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> npm install\n<span class=\"glossaryai-tooltip glossary-term-673\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/copy\/\" target=\"_blank\">COPIA<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">COPY is a command in computer programming and data management that facilitates the duplication of files or data from one location to another, ensuring data integrity and accessibility.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/copy\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> . .\n<span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">CORRE<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> npm <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> build\n\n# Production stage\nFROM nginx:alpine\n<span class=\"glossaryai-tooltip glossary-term-673\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/copy\/\" target=\"_blank\">COPIA<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">COPY is a command in computer programming and data management that facilitates the duplication of files or data from one location to another, ensuring data integrity and accessibility.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/copy\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --from=builder \/app\/dist \/usr\/share\/nginx\/html<\/code><\/pre>\n<p>You can tag the final <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n<pre><code class=\"language-bash\">docker build --tag my-web-app:prod .<\/code><\/pre>\n<h3>Res\u00famenes de im\u00e1genes de Docker<\/h3>\n<p>When you push an <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to a <span class=\"glossaryai-tooltip glossary-term-658\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/registry\/\" target=\"_blank\">registry<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un registro es una base de datos centralizada que almacena informaci\u00f3n sobre diversas entidades, como instalaciones de software, configuraciones del sistema o datos de usuario. Es un componente fundamental para la gesti\u00f3n y configuraci\u00f3n del sistema.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/registry\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, Docker assigns a unique digest to each <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> based on its content. This digest ensures that you are always pulling the exact version of the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, regardless of tags. Using digests can provide an additional layer of certainty when deploying images.<\/p>\n<p>To find the digest of an <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, use the command:<\/p>\n<pre><code class=\"language-bash\">docker inspect --format='{{index .RepoDigests 0}}' my-web-app:latest<\/code><\/pre>\n<h3>Using Labels for Metadata<\/h3>\n<p>Besides tagging, you can use labels in your Docker images to <span class=\"glossaryai-tooltip glossary-term-674\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/add\/\" target=\"_blank\">a\u00f1adir<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">La instrucci\u00f3n ADD en Docker es un comando utilizado en Dockerfiles para copiar archivos y directorios desde una m\u00e1quina anfitriona hacia una imagen de Docker durante el proceso de construcci\u00f3n. No solo facilita la transferencia de archivos locales, sino que tambi\u00e9n proporciona funcionalidades adicionales, como extraer autom\u00e1ticamente archivos comprimidos y obtener archivos remotos a trav\u00e9s de HTTP o HTTPS.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/add\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> metadata. Labels provide a way to store additional information about the <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, such as versioning, authorship, and support links. Here\u2019s how to use labels in a <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>:<\/p>\n<pre><code class=\"language-Dockerfile\">LABEL version=\"1.0\"\nLABEL maintainer=\"yourname@example.com\"<\/code><\/pre>\n<p>When combined with tagging, labels can enhance the manageability and traceability of your images.<\/p>\n<h2>Conclusi\u00f3n<\/h2>\n<p>El <code>--etiqueta<\/code> option in Docker is a powerful tool that plays a critical role in <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> management, version control, and deployment processes. By understanding how to effectively utilize this option and adhering to best practices, you can maintain a clean, efficient, and organized Docker environment. As you delve deeper into the world of Docker, remember that tagging is just one piece of the puzzle. Leveraging advanced concepts such as multistage builds, <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> digests, and labels will further enhance your containerization strategies, ultimately leading to more robust and scalable applications. Embrace the power of <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> tagging, and take your <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> management skills to the next level.<\/p>","protected":false},"excerpt":{"rendered":"<p>El <span class=\"glossaryai-tooltip glossary-term-652\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\" target=\"_blank\">Dockerfile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Un Dockerfile es un script que contiene una serie de instrucciones para automatizar la creaci\u00f3n de im\u00e1genes Docker. Especifica la imagen base, las dependencias de la aplicaci\u00f3n y la configuraci\u00f3n, facilitando el despliegue consistente en diferentes entornos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/dockerfile\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> `\u2013tag` option allows users to specify a name and optional version for the Docker <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> being built. This tagging facilitates <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">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.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> management and version control in containerized environments.<\/p>","protected":false},"author":1,"featured_media":1971,"parent":0,"template":"","glossary-cat":[],"class_list":["post-1329","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dockerfile -tag - 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\/etiqueta-de-dockerfile\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dockerfile -tag - Dockerpros\" \/>\n<meta property=\"og:description\" content=\"The Dockerfile `--tag` option allows users to specify a name and optional version for the Docker image being built. 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