-
Definir archivo opciones contenedores de servicio
docker-compose.yml editado
Versiones de archivo: https://docs.docker.com/compose/compose-file/
# editar contenido de docker-compose.yml en arbol de identaciones
version: "3.7"
services:
nginx:
image: nginx
ports:
- "80:80"
# a nivel del archivo en la terminal levantar el servicio usando el archivo
cd servicios
docker-compose up
# salida
Creating network "servicios_default" with the default driver
Creating servicios_nginx_1 ... done
Attaching to servicios_nginx_1
# log al acceder desde el navegador
nginx_1 | 172.23.0.1 - - [13/Mar/2020:10:55:07 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36" "-"
nginx_1 | 2020/03/13 10:55:08 [error] 6#6: *1 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.23.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "localhost", referrer: "http://localhost/"
nginx_1 | 172.23.0.1 - - [13/Mar/2020:10:55:08 +0000] "GET /favicon.ico HTTP/1.1" 404 555 "http://localhost/" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36" "-"
# salida con Ctrl+C, ver ayuda
^CGracefully stopping... (press Ctrl+C again to force)
Stopping servicios_nginx_1 ... done
docker-compose --help
...
build Build or rebuild services
bundle Generate a Docker bundle from the Compose file
config Validate and view the Compose file
create Create services
down Stop and remove containers, networks, images, and volumes
events Receive real time events from containers
exec Execute a command in a running container
help Get help on a command
images List images
kill Kill containers
logs View output from containers
pause Pause services
port Print the public port for a port binding
ps List containers
...
start Start services
stop Stop services
top Display the running processes
unpause Unpause services
up Create and start containers
version Show the Docker-Compose version information
# ver ayuda, comando up
docker-compose up --help
...
-d, --detach Detached mode: Run containers in the background,
print new container names. Incompatible with
--abort-on-container-exit.
--no-color Produce monochrome output.
--quiet-pull Pull without printing progress information
--no-deps Don't start linked services.
--force-recreate Recreate containers even if their configuration
and image haven't changed.
...
in the Compose file.
--exit-code-from SERVICE Return the exit code of the selected service
container. Implies --abort-on-container-exit.
--scale SERVICE=NUM Scale SERVICE to NUM instances. Overrides the
`scale` setting in the Compose file if present.- Eliminar contenedores de servicio y configuraciones
# uso comando down
cd servicios
docker-compose down
# salida
Stopping servicios_nginx_1 ... done
Removing servicios_nginx_1 ... done
Removing network servicios_default- Personalizar nombre servicio contenedor
# editar docker-compose.yml
version: "3.7"
services:
nginx:
image: nginx
container_name: nginx # <-
ports:
- "80:80"- Agregar servicio en contenedor
# editar docker-compose.yml
version: "3.7"
services:
nginx:
image: nginx
container_name: nginx
ports:
- "80:80"
mysql:
image: mysql
container_name: mysql
# probar creando con opciones antes de cambios
cd servicios
docker-compose up
Creating network "servicios_default" with the default driver
Creating nginx ... done
Attaching to nginx
^CGracefully stopping... (press Ctrl+C again to force)
Stopping nginx ... done
# probar compose con los ultimos cambios del docker-compose.yml
cd servicios
docker-compose up -d
Starting nginx ... done
Creating mysql ... done
# ver contendores de servicios en ejecucion
docker-compose ps
Name Command State Ports
-----------------------------------------------------------------
mysql docker-entrypoint.sh mysqld Exit 1
nginx nginx -g daemon off; Up 0.0.0.0:80->80/tcp
# ver registro logs del servicio que no se activo
docker-compose logs mysql
#salida
Attaching to mysql
mysql | 2020-03-13 16:06:58+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.19-1debian10 started.
mysql | 2020-03-13 16:07:01+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
mysql | 2020-03-13 16:07:01+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.19-1debian10 started.
mysql | 2020-03-13 16:07:01+00:00 [ERROR] [Entrypoint]: Database is uninitialized and password option is not specified
mysql | You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD and MYSQL_RANDOM_ROOT_PASSWORD
# para arreglar, eliminar contenedores definidos en el .yml
docker-compose down
Stopping nginx ... done
Removing mysql ... done
Removing nginx ... done
Removing network servicios_default
# agregar opciones de entorno requeridas del servicio mysql
version: "3.7"
services:
nginx:
image: nginx
container_name: nginx
ports:
- "80:80"
mysql:
image: mysql
container_name: mysql
environment:
MYSQL_ROOT_PASSWORD: root # <-
# probar nuevamente servicios queden en ejecución
docker-compose up -d
Creating network "servicios_default" with the default driver
Creating mysql ... done
Creating nginx ... done
# ver si todos los servicios definidos estan en ejecución
Name Command State Ports
-----------------------------------------------------------------
mysql docker-entrypoint.sh mysqld Up 3306/tcp, 33060/tcp
nginx nginx -g daemon off; Up 0.0.0.0:80->80/tcp
# exponer puerto servicio mysql y actualizar contendores
...
mysql:
image: mysql
container_name: mysql
ports:
- "3306:3306" # <-
environment:
MYSQL_ROOT_PASSWORD: root
# actualizar
docker-compose up -d
Recreating mysql ...
Recreating mysql ... done
# ver cambios en ejecucion
docker-compose ps
Name Command State Ports
-------------------------------------------------------------------------------
mysql docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcp, 33060/tcp
nginx nginx -g daemon off; Up 0.0.0.0:80->80/tcp