What is Docker? Docker is an open platform for developing, publishing, and running applications. Docker enables you to decouple your application from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure just like your applications. By leveraging Docker's approach to delivering, testing, and deploying code quickly, you can significantly reduce the delay between writing code and running it in production. What is dockerfile? Docker can automatically build an image by reading the instructions in dockerfile. Dockerfile is a text file used to build an image, and the text content contains an instruction and description required to build an image. What is docker compose? Docker compose is a tool used to help define and share multi container applications. With compose, we can create a yaml file to define services, and with a command or operation, we can start all contents or close them all. Installation Install in the left menu "Docker" interface The interface after installation is as follows: Product function list and detailed explanation Image Docker images are the foundation of containers. A image has no state, it never changes. Containers A container is a running instance of a Docker image. Compose Compose is a tool for defining and running complex applications using Docker. Compose template Compose Template Defines the yaml files that make up a Compose project. Network Container networking is part of the virtual environment created by Docker for containers, allowing containers to be independent from the host's network environment. Volume A volume is a specially designated directory within one or more containers. A volume is intended for data persistence, independent of the container's lifecycle. So when a container is deleted, Docker never automatically deletes the volume. Warehouse Repositories are used to store Docker images. Setting Status of the Docker service. one, image image interface preview: pull image: pull images from Docker official repository and third-party repository example: Pull the image from the official docker repository: mysql:5.7 mysql:5.7 Explanation; mysql is the name of the image, 5.7 is the label, separated by English ":" Pull images from third-party repositories: registry.cn-shenzhen.aliyuncs.com/star7th/showdoc Explanation: The name of the third-party repository/user/image, no label defaults to: latest Import image: import image from this server Build image: build image from Dockerfile View the example of building an image: Click me to go directly to the Dockerfile to build an image example View the example of building an image: Click me to go directly to the Dockerfile to build an image example Push: push the image to the specified repository Note: You need to set up your own repository before you can push Label filling format: image name:label, the image name must be the same as the repository name to be pushed normally. As shown in the figure: Export: export the image to this server Del: delete the image, It cannot be restored after deleting the image, please pay attention to the relevant backup ID: sha256 fingerprint information of the image, which is also the ID of the image Image name: the name and label of the image, the unique identifier of the Docker image, if the "build/import image" has the same "image name: label", it will overwrite the old image size: the size of the image Creation time: the time the image was created two, container Container interface preview: Add container: create container from image, create container from Compose template Example:use the "mysql:5.7" image as an example to create a container Containers are generally created from the command line like this: docker run -d --name mysql_test -p 3361:3306 -v /docker/mysql_data/:/var/lib/mysql/ -e MYSQL_ROOT_PASSWORD=my-passwd mysql:5.7 if(window.hljsLoader && !document.currentScript.parentNode.hasAttribute('data-s9e-livepreview-onupdate')) { window.hljsLoader.highlightBlocks(document.currentScript.parentNode); } Command Explanation: run: create a container using the mysql:5.7 image -d: the container runs in the background --name: Set the container name: mysql_test -p 3361:3306: Map host 3361 port to container 3306 port -v /docker/mysql_data/:/var/lib/mysql/: Map the host /docker/mysql_data/ directory to the container /var/lib/mysql/ directory for data persistence (if the host directory does not exist will be created automatically) -e: MYSQL_ROOT_PASSWORD=my-passwd: Specify the environment variable and set the MySQL root user password to my-passwd. If this environment variable is not specified in the mysql image, the container will not be able to run Containers can be created in the panel like this: Interface explanation: Name: corresponding to --name, fill in the container name Image: select mysql:5.7 to create a container Port: corresponding to -p 3361:3306 , note: After filling in, click the + icon to take effect. Command: can be left blank Automatically delete the container after the container stops: After the container is stopped, the container will be automatically deleted. Please note that the data backup cannot be restored after deletion Limit CPU, Memory : limit the resources used by the container Volume: corresponding to -v /docker/mysql_data/:/var/lib/mysql/ , you can also add and select the volume name in the "volume interface" for data persistence, note: After filling in, click the + icon to take effect. Tag: used to identify the purpose of the container, can be left blank Env variable: corresponding to -e MYSQL_ROOT_PASSWORD=my-passwd Restart rules: Not restart: restarting the server/restarting the Docker service does not start the container Rest up immediately after closing: restart the server / restart the Docker service to automatically start the container Restart at the time of error (restart 5 times by default): The container will restart when an error occurs, and it will not restart after more than 5 times. Please check the container log to troubleshoot errors The panel already runs in the background using run -d by default How to use the public image container, please check its official information Stats: Real-time monitoring of the container CPU, memory, hard disk IO, network IO resource usage Terminal: Enter the container in terminal mode Note: The container needs to be in the startup state to enter the container, otherwise it will exit to the host machine Path: enter the container directory through the File manager Log: View the running log of the container Del: delete the container, The data cannot be recovered after the container is deleted. Please pay attention to the data backup . If the container has data persistence, the volume will not be been deleted Container name: Can click into it to use the "Container Configuration" and "Generate Image" functions (1) Container configuration: Click "Container Name" to view the container configuration, and click "…" to view more configurations (2) Generate mirror image: Generate mirror image of the current container, Export the compressed package after the image is generated Status: Optionally start, stop, pause, unpause, restart, reload container image: the image used by the container IP: IP address of the container CPU usage: CPU usage of the container Port (host-->container): the port that the host is mapped to the container, the left is the host Start time: the time when the container was started for the first time Execite: Select 1 or more to perform batch operations on containers: start, stop, pause, unpause, restart, reload, delete containers Third, Compose Compose interface preview: Add Compose project: build container from Compose template Check out the Docker Compose example: Click me directly to the Docker Compose example Container list: (1) Compose operation: Can choose to start, stop, pause, unpause, and restart the entire Compose project (2) Status: Can choose to start, stop, pause, unpause, restart, and reload the container (3) Terminal: Enter the container in terminal mode (4) Path: Enter the container directory through the File manager (5) Log: View the running log of the container (6) Del: delete a single container, The data cannot be recovered after deletion, please pay attention to the data backup , if the container has data persistence, the volume will not been deleted Del: delete the container of the entire Compose project, will delete all the containers in the project, the data cannot be restored after deletion, please pay attention to the data backup , if the container There is data persistence, the volume will not be deleted project name: Compose project name Number of containers: The number of containers within the project Startup time: The time when the container was started for the first time Description: Used to describe the usefulness of this project Execite: select 1 or more project for batch operation: delete Compose project Fourth, Compose template Compose template interface preview: Add: add Compose template, search local template Edit: Edit Compose template Pull image: pull the image according to the configuration of the Compose template Del: Delete the Compose template, It cannot be restored after deletion, please pay attention to the backup of the template content Template name: the name of the template Path: The storage path of the template Description: Used to describe the usefulness of this template Execite: select 1 or more templates for batch operation: delete Compose template V, Network Web interface preview: Add network: Add new network to Docker Del: delete the container network Network Name: The name of the network Show: network driver type (1) none: none mode does not use the network (2) host: host mode directly uses the host's network (3) bridge: bridge mode is bridged with the host, the default network used by the container Network number: IP range of the container network Gateway: Gateway IP address of the container network subnet Tag: used to identify the usefulness of the container network Creation time: The time when the container network was created Execite: select 1 or more networks for batch operation: delete network Six, Volume Volume interface preview: Add Volume: Add a new volume Can add a volume first, and then go to the Add Container interface to select volume Del: delete the volume, The data cannot be recovered after deleting the volume, please pay attention to the data backup Volume name: the name of the volume where the container data is persisted Mount point: the path stored in the host Name: which container is currently name using this volume Device: The device where the volume is stored Creation time: The time when the volume was created Tag: used to identify the usefulness of the volume Execite: Select one or more volumes to perform batch operations: delete the volume, The data cannot be recovered after deleting the volume, please pay attention to the data backup Seven, Repository Repository interface preview: Add Repository: add docker official library, third-party Repository The official docker library is added as follows: Edit: Edit repository Del: delete repository URL: images repository link Username: login repository user Repository name: repository name/image name Description: Used to identify the usefulness of the repository Execite: select 1 or more repository for batch operation: delete repository Eighth, Settings Setting interface preview: Docker service: The current Docker service status, start, restart, and stopp. After the Docker service is started, whether the container is started according to the restart rules Container monitor: on, off. CPU usage will no longer be monitored after shutdown Save days:: Set the monitoring storage days of the container page. Default is 30 days Registry URL: Set the acceleration URL. After setting the acceleration, you need to restart Docker manually. If you encounter problems or have good suggestions during use, please open a new thread or leave a message under this thread

aaPanel_Kern Okay, when I good understand the database will be accessible from 127.0.0.1:3361, but when I install in Docker another webserver (Nginx, Apache, LiteSpeed Demyx...) how will be open pages?

【Docker Module】User Manual

aaPanel_Kern

Stealth
Change to another port, or use the panel site proxy.
https://www.aapanel.com/forum/d/13700-docker-module-docker-compose-to-build-your-own-nextcloud-private-cloud-space

Stealth

Reverse proxy, thank you 🙂

aaP_vutn0911

My server already have docker installed manual before. But at the last update, my Docker menu show no docker installed

aaPanel_Kern

aaP_vutn0911
Check for this soft link file: ls /usr/bin/docker-compose
If not, try to execute the soft link command: ln -sf /usr/local/bin/docker-compose /usr/bin/docker-compose
Also try to install again. The original docker will take over directly. Data will not be lost

cacatuamae

Seems like there's something wrong. I 've tried reinstalling, updating and the fix button, same result: I can't get it working to create a docker-compose template, seems like docker compose is not even a part of the system.

aaPanel_Kern

cacatuamae
View the file using the command
ls -al /usr/local/bin/docker-compose /usr/bin/docker-compose

cacatuamae

aaPanel_Kern
As I said, it's so frustrating dealing with this kind of issue with aaPanel, it should be so simple to just use a panel but sometimes I feel like it's much worse, I have to try a lot of workarounds to do basic stuff, like this. I tried installing docker-compose with no success, the docker is installed via app manager but doesn't show up as so:

Trully, I'm getting tired of this...

aaPanel_Kern

cacatuamae
Which one can be used first.
Try the following command. Can the Docker interface be resolved?
ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

cacatuamae

aaPanel_Kern

cacatuamae
docker-compose -v

cacatuamae

aaPanel_Kern

cacatuamae
Try these two commands.
ls -al /usr/local/bin/docker-compose /usr/bin/docker-compose
ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
If not, can we give you information?
The server makes a snapshot backup first, if possible, please send it to kern@aapanel.com.
It is recommended to fill in the following
Post link:
SSH IP address, account password and port:
aapanel login link address and account password:

No post link will not be able to know which user's information is

cacatuamae

aaPanel_Kern
Here you have it:

aaPanel_Kern

cacatuamae
is the problem solved?

cacatuamae

aaPanel_Kern not at all, still running on the same issues.

aaPanel_Kern

cacatuamae
Download the installation script
wget http://download.bt.cn/install/0/docker_install.sh
Uninstall the currently installed docker first
/bin/bash /www/server/panel/install/docker_install.sh uninstall

Try to reinstall, and check whether there is any error during the installation.

hardik

How can i allow docker to allow use GPU?

There is no option to pass "--gpus all -t nvidia/cuda" as docker command while starting container

aaPanel_Kern

hardik
Hello, it is recommended to use the command line to create related containers, and then to the panel for management

hardik

how can i give container access to use GPU of my hardware?

aaPanel_Kern

hardik
Hello, suggest you find the official docker materials.