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  Operating System: Debian GNU/Linux 11 (bullseye)
            Kernel: Linux 5.10.0-18-amd64
      Architecture: x86-64

# Update the software sources and install docker and related applications
    sudo apt update && sudo apt install -y docker docker.io docker-compose

# Check the status of Docker
    sudo systemctl status docker
# View Docker information
    sudo docker info
# Verify if the installation was successful    
    sudo docker run hello-world

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "max-concurrent-downloads": 3,
  "max-concurrent-uploads": 3,
  "max-download-attempts": 3,
  "registry-mirrors": ["https://modify-to-your-own.mirror.aliyuncs.com","https://hub-mirror.c.163.com","https://registry.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

# Delete all images that are not tagged and not used by containers:
$ docker image prune

# Delete all images not used by containers:
$ docker image prune -af

# Delete all stopped containers:
$ docker container prune

# Delete all unused volumes:
$ docker volume prune

# Delete all networks:
$ docker network prune

# Delete all Docker resources:
$ docker system prune

# View the IP of all containers
$ docker inspect --format='{{.Name}} - {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -aq)

# View the network configuration of a specific container, including network and IP
$ docker inspect containerId

# View the IP of a container
$ docker exec -it containerId ip addr 

{
"data-root":"/home/docker"
}

# a. Reload the configuration file after modification
sudo systemctl daemon-reload

# b. Restart the Docker service
sudo systemctl restart docker.service

# c. Check the status
sudo systemctl status docker -l

# d. View the service
sudo docker info

# Use --entrypoint to enter the container (add -it option to directly enter the container)
docker run -it --entrypoint /bin/bash --name container_name image:v30.2.9   

# ldd (Debian GLIBC 2.36-9+deb12u1) 2.36
# Copyright (C) 2022 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.  There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# Written by Roland McGrath and Ulrich Drepper.
ldd --version

# Determine which shared library files a command requires to ensure that the specified command can run reliably in an isolated system
ldd /bin/bash

{
"api-cors-header":"", // Set CORS headers in the engine API
"authorization-plugins":[], // Load authorization plugins
"bridge":"", // Attach containers to a bridge
"cgroup-parent":"", // Set the parent cgroup for all containers
"cluster-store":"", // URL of the distributed storage backend
"cluster-store-opts":{}, // Set cluster store options (default map [])
"cluster-advertise":"", // Address or interface name to advertise
"debug": true, // Enable debug mode (default false)
"default-gateway":"", // Default IPv4 gateway for containers
"default-gateway-v6":"", // Default IPv6 gateway for containers
"default-runtime":"runc", // Default OCI runtime for containers (default "runc")
"default-ulimits":{}, // Default ulimits for containers (default [])
"dns": ["192.168.1.1"], // Set the DNS addresses for containers, can be viewed in the /etc/resolv.conf file of the container
"dns-opts": [], // Additional options for the container /etc/resolv.conf file
"dns-search": [], // Set the search domains for containers, when the search domain is set to .example.com, DNS will search for both host and host.example.com when searching for a host. Note: If not set, Docker will default to the /etc/resolv.conf on the host.
"exec-opts": [], // Execution options for the runtime
"exec-root":"", // Root directory for execution state files (default "/var/run/docker")
"fixed-cidr":"", // Fixed IPv4 subnet for IPAM
"fixed-cidr-v6":"", // Fixed IPv6 subnet for IPAM
"data-root":"/var/lib/docker", // Root path used by the Docker runtime (default "/var/lib/docker")
"group": "", // Group for UNIX sockets (default "docker")
"hosts": [], // Set the hosts for containers
"icc": false, // Enable inter-container communication (default true)
"ip":"0.0.0.0", // Default IP when binding container ports (default 0.0.0.0)
"iptables": false, // Enable adding iptables rules (default true)
"ipv6": false, // Enable IPv6 networking
"ip-forward": false, // Enable net.ipv4.ip_forward (default true)
"ip-masq":false, // Enable IP masquerading (default true)
"labels":["nodeName=node-121"], // Labels for the Docker host, useful feature, for example, define: --label nodeName=host-121
"live-restore": true, // Enable Docker's live restore while containers are still running
"log-driver":"", // Default log driver for containers (default "json-file")
"log-level":"", // Set the log level ("debug", "info", "warn", "error", "fatal") (default "info")
"max-concurrent-downloads":3, // Set the maximum concurrent downloads per request (default 3)
"max-concurrent-uploads":5, // Set the maximum concurrent uploads per push (default 5)
"mtu": 0, // Set the container network MTU
"oom-score-adjust":-500, // Set the oom_score_adj for the daemon (default -500)
"pidfile": "", // PID file for the Docker daemon
"raw-logs": false, // Enable full timestamp mechanism
"selinux-enabled": false, // Enable SELinux support (default false)
"storage-driver":"", // Storage driver to use
"swarm-default-advertise-addr":"", // Interface to use for default address or cluster advertise address
"tls": true, // Enable TLS authentication (default false)
"tlscacert": "", // Path to the CA certificate file (default ~/.docker/ca.pem)
"tlscert": "", // Path to the TLS certificate file (default ~/.docker/cert.pem)
"tlskey": "", // Path to the TLS key file (default ~/.docker/key.pem)
"tlsverify": true, // Use TLS and verify the remote (default false)
"userland-proxy":false, // Use userland proxy for loopback traffic (default true)
"userns-remap":"", // User/Group setting for user namespace
"bip":"192.168.88.0/22", // Specify the bridge IP
"registry-mirrors": ["https://192.498.89.232:89"], // Set the mirror accelerator
"insecure-registries": ["192.168.0.123:12312"], // Set private registry addresses to http
"storage-opts": [
"overlay2.override_kernel_check=true",
"overlay2.size=15G"
], // Storage driver options
"log-opts": {
"max-file": "3",
"max-size": "10m",
}, // Default log driver options for containers
"iptables": false // Enable adding iptables rules (default true)
}