Refactor Docker documentation with basic commands and Docker Compose reference
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mjanez
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README.md
124
README.md
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@ -106,7 +106,7 @@ To verify a successful Docker installation, run `docker run hello-world` and `do
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versions for client and server.
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> [!NOTE]
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> Learn more about [Docker](#docker-basic-commands)/[Docker Compose](#docker-compose-basic-commands) basic commands.
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> Learn more about [Docker/Docker Compose](#docker-basic-commands) basic commands.
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>
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@ -209,31 +209,38 @@ See [CKAN images](#5-ckan-images) for more details of what happens when using de
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#### Create an extension
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You can use the ckan [extension](https://docs.ckan.org/en/latest/extensions/tutorial.html#creating-a-new-extension) instructions to create a CKAN extension, only executing the command inside the CKAN container and setting the mounted `src/` folder as output:
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docker compose -f docker-compose.dev.yml exec ckan-dev /bin/sh -c "ckan -c /srv/app/ckan.ini generate extension --output-dir /srv/app/src_extensions"
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```bash
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docker compose -f docker-compose.dev.yml exec ckan-dev /bin/sh -c "ckan -c /srv/app/ckan.ini generate extension --output-dir /srv/app/src_extensions"
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```
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Then, answer the prompts to configure the plugin:
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```bash
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Extension's name [must begin 'ckanext-']: ckanext-newextension
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Author's name []: Joe Bloggs
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Author's email []: joe@bloggs.com
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Your Github user or organization name []: joebloggs
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Brief description of the project []: test creating a new extension
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List of keywords (separated by spaces) [CKAN]: ckanext-newextension
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Do you want to include code examples? [y/N]: y
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Written: /srv/app/src_extensions/ckanext-newextension
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```
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The new extension files and directories are created in the `/srv/app/src_extensions/` folder in the running container. They will also exist in the local src/ directory as local `/src` directory is mounted as `/srv/app/src_extensions/` on the ckan container. You might need to change the owner of its folder to have the appropiate permissions.
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#### Running HTTPS on development mode
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#### Running HTTPS on development mode
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Sometimes is useful to run your local development instance under HTTPS, for instance if you are using authentication extensions like [ckanext-saml2auth](https://github.com/keitaroinc/ckanext-saml2auth). To enable it, set the following in your `.env` file:
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```
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```
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USE_HTTPS_FOR_DEV=true
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```
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```
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```ini
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USE_HTTPS_FOR_DEV=true
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```
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and update the site URL setting:
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```
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```
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CKAN_SITE_URL=https://localhost:5000
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```
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```
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```ini
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CKAN_SITE_URL=https://localhost:5000
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```
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After recreating the `ckan-dev` container, you should be able to access CKAN at https://localhost:5000
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@ -547,8 +554,8 @@ PostgreSQL offers the command line tools [`pg_dump`](https://www.postgresql.org/
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0 0 * * * /path/to/your/script/ckan_backup_custom.sh
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```
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> [!NOTE]
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> Replace `/path/to/your/script` with the actual path to the `ckan_backup_custom.sh` script.
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> [!NOTE]
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> Replace `/path/to/your/script` with the actual path to the `ckan_backup_custom.sh` script.
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8. Save and close the file.
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@ -605,89 +612,8 @@ If need to use a backup, restore it:
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```bash
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ckan -c ckan.ini user remove user_example`
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```
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### Docker. Basic commands
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#### Linux post-install steps
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[These optional post-installation procedures](https://docs.docker.com/engine/install/linux-postinstall/) shows you how to configure your Linux host machine to work better with Docker. For example, managing docker with [a non-root user](https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user).
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#### Configure Docker to start on boot
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```bash
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sudo systemctl enable docker
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# To disable this behavior, use disable instead.
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sudo systemctl disable docker
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```
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#### Clear all Docker unused objects (images, containers, networks, local volumes)
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```bash
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docker system prune # Clear all
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docker system prune -a # Clear all (includes unused and dangling containers)
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# By default, volumes are not removed to prevent important data from being deleted if there is currently no container using the volume. Use the `--volumes` flag when running the command to prune volumes: `docker system prune -a --volumes`
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docker image prune # Clear unused images
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docker container prune # Clear unused containers
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docker volume prune # Clear unused volumes
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docker network prune # Clear unused networks
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```
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### Docker Compose. Basic commands
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More info about Docker Compose commands at [docker compose reference](https://docs.docker.com/compose/reference/).
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```bash
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# Basic. All containers or specific container: <container>
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## Starts existing containers for a service.
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docker compose start <container>
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## Restarts existing containers/container for a service.
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docker compose restart <container>
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## Stops running containers without removing them.
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docker compose stop <container>
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## Pauses running containers of a service.
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docker compose pause <container>
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## Unpauses paused containers of a service.
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docker compose unpause <container>
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# Display the logs of a container. Is it possible to retrieve only the last n seconds or other
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docker logs [--since 60s] <container> -f
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## Lists containers.
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docker compose ps
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## Remove all docker compose project
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docker compose rm <container>
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# Build.
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## Builds, (re)creates, starts, and attaches to containers for a service.
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docker compose [-f <docker compose-file>] up
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## Build & up all the containers.
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docker compose [-f <docker compose-file>] up -d --build
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## Build & up an specific container.
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docker compose [-f <docker compose-file>] up -d --build <container>
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## To avoid using a cache of the previous build while creating a new image.
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docker compose [-f <docker compose-file>] build --no-cache
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## Build a project with a specific Docker Compose prefix.
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docker compose [-f <docker compose-file>] -p <my_project> up -d --build
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## Log the build
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docker compose build --no-cache &> docker_build.log
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# Down
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# Stops containers and removes containers, networks, volumes, and images created by up.
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docker compose [-p <my_project>] down
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```
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For more information about Docker and Docker Compose's basic commands and post-installation procedures, see [Docker/Docker Compose Info](./doc/info_docker.md)
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### Docker Compose. Configure a docker compose service to start on boot
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To have Docker Compose run automatically when you reboot a machine, you can follow the steps below:
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@ -0,0 +1,80 @@
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# Docker. Basic commands
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## Linux post-install steps
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[These optional post-installation procedures](https://docs.docker.com/engine/install/linux-postinstall/) shows you how to configure your Linux host machine to work better with Docker. For example, managing docker with [a non-root user](https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user).
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### Configure Docker to start on boot
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```bash
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sudo systemctl enable docker
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# To disable this behavior, use disable instead.
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sudo systemctl disable docker
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```
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### Clear all Docker unused objects (images, containers, networks, local volumes)
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```bash
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docker system prune # Clear all
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docker system prune -a # Clear all (includes unused and dangling containers)
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# By default, volumes are not removed to prevent important data from being deleted if there is currently no container using the volume. Use the `--volumes` flag when running the command to prune volumes: `docker system prune -a --volumes`
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docker image prune # Clear unused images
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docker container prune # Clear unused containers
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docker volume prune # Clear unused volumes
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docker network prune # Clear unused networks
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```
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## Docker Compose. Basic commands
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More info about Docker Compose commands at [docker compose reference](https://docs.docker.com/compose/reference/).
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```bash
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# Basic. All containers or specific container: <container>
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## Starts existing containers for a service.
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docker compose start <container>
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## Restarts existing containers/container for a service.
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docker compose restart <container>
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## Stops running containers without removing them.
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docker compose stop <container>
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## Pauses running containers of a service.
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docker compose pause <container>
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## Unpauses paused containers of a service.
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docker compose unpause <container>
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# Display the logs of a container. Is it possible to retrieve only the last n seconds or other
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docker logs [--since 60s] <container> -f
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## Lists containers.
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docker compose ps
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## Remove all docker compose project
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docker compose rm <container>
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# Build.
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## Builds, (re)creates, starts, and attaches to containers for a service.
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docker compose [-f <docker compose-file>] up
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## Build & up all the containers.
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docker compose [-f <docker compose-file>] up -d --build
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## Build & up an specific container.
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docker compose [-f <docker compose-file>] up -d --build <container>
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## To avoid using a cache of the previous build while creating a new image.
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docker compose [-f <docker compose-file>] build --no-cache
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## Build a project with a specific Docker Compose prefix.
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docker compose [-f <docker compose-file>] -p <my_project> up -d --build
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## Log the build
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docker compose build --no-cache &> docker_build.log
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# Down
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# Stops containers and removes containers, networks, volumes, and images created by up.
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docker compose [-p <my_project>] down
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```
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