# puertos ## Puertos * Imagen y contenedor de prueba inical ``` # descarga imagen nginx para ejemplo hub.docker.com/_/nginx docker image pull nginx # ejecutar contenedor de prueba con imagen nginx docker container run -d nginx 449b68085f6c96c9a3f9a55ea5e9f3a495e311f486e323fdcd6092311a902f56 # listar contenedor creado docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS 449b68085f6c nginx "nginx -g 'daemon of…" 2 minutes ago Up 2 minutes 80/tcp f93bf0ccdc60 ubuntu-tools "/bin/bash" 37 minutes ago Up 35 minutes # probar mostrar info del index curl localhost # servicio de nginx se expone dentro pero no fuera del contenedor curl: (7) Failed to connect to localhost port 80: Conexión rehusada ``` * Exponer puerto de contenedor a host local ``` # detener contenedores de pruebas anteriores docker stop $(docker ps -q) # ejecutar nuevo contenedor de prueba con imagen nginx # uso flag -p (publicar puerto host local), no -P (mayus, aleatoriamente) # -p sistema:contenedor docker container run -d -p 8080:80 nginx 66dd98b03d3fd28b443d1ec611d981fd18606f60c01045fc52fdd2b7406be7f7 # probar mostrar info del index curl localhost:8080 # servicio de nginx ahora se expone fuera del contenedor Welcome to nginx!

Welcome to nginx!

If you see this page, the nginx web server is successfully installed and working. Further configuration is required.

... ``` * Ver puertos expueto de contenedor ``` # listar contenedores creados en ejecucion docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS 66dd98b03d3f nginx "nginx -g 'daemon of…" 8 minutes ago Up 8 minutes 0.0.0.0:8080->80/tcp # uso comando port docker container port 66dd98b03d3f # salida 80/tcp -> 0.0.0.0:8080 ``` * Asignar puerto aleatoriemante de contenedor a host local \`\`\`shell **ejecutar nuevo contenedor de prueba con imagen nginx** **uso flag -P (mayus, aleatoriamente)** docker container run -d -P nginx 105a2e895101ab51ccad7f6c3849d0a670b491ac90eb0567b01a55fc769cbb71 **listar contenedores creados en ejecucion** docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS 105a2e895101 nginx "nginx -g 'daemon of…" 18 seconds ago Up 14 seconds 0.0.0.0:32768->80/tcp 66dd98b03d3f nginx "nginx -g 'daemon of…" 17 minutes ago Up 17 minutes 0.0.0.0:8080->80/tcp ## probar mostrar info del index curl localhost:32768 ## servicio de nginx ahora se expone fuera del contenedor con el puerto aleatorio \ Welcome to nginx! body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } \ Welcome to nginx! If you see this page, the nginx web server is successfully installed and working. Further configuration is required. ... \ \ ```` - Nota multiples servicios a exponer puertos ```shell # concatenar flags -p valor sistema:contenedor docker container run -d -p 8080:80 -p 3001:3000 -p 2222:2222 nginx ```` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://zeroidentidad.gitbook.io/docker-facilito/containers/puertos.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.