daemon
Dockerd Configuration
[root@localhost128 docker]# dockerd --help
Usage: dockerd [OPTIONS]
A self-sufficient runtime for containers.
Options:
--add-runtime runtime Register an additional OCI compatible runtime (default [])
--allow-nondistributable-artifacts list Allow push of nondistributable artifacts to registry
--api-cors-header string Set CORS headers in the Engine API
--authorization-plugin list Authorization plugins to load
--bip string Specify network bridge IP
-b, --bridge string Attach containers to a network bridge
--cgroup-parent string Set parent cgroup for all containers
--config-file string Daemon configuration file (default "/etc/docker/daemon.json")
--containerd string containerd grpc address
--containerd-namespace string Containerd namespace to use (default "moby")
--containerd-plugins-namespace string Containerd namespace to use for plugins (default "plugins.moby")
--cpu-rt-period int Limit the CPU real-time period in microseconds for the parent cgroup for all containers
--cpu-rt-runtime int Limit the CPU real-time runtime in microseconds for the parent cgroup for all containers
--cri-containerd start containerd with cri
## 持久化 Docker 状态的根目录，包括有container,image,network等等
--data-root string Root directory of persistent Docker state (default "/var/lib/docker")
-D, --debug Enable debug mode
--default-address-pool pool-options Default address pools for node specific local networks
--default-cgroupns-mode string Default mode for containers cgroup namespace ("host" | "private") (default "host")
--default-gateway ip Container default gateway IPv4 address
--default-gateway-v6 ip Container default gateway IPv6 address
--default-ipc-mode string Default mode for containers ipc ("shareable" | "private") (default "private")
--default-runtime string Default OCI runtime for containers (default "runc")
--default-shm-size bytes Default shm size for containers (default 64MiB)
--default-ulimit ulimit Default ulimits for containers (default [])
--dns list DNS server to use
--dns-opt list DNS options to use
--dns-search list DNS search domains to use
--exec-opt list Runtime execution options
--exec-root string Root directory for execution state files (default "/var/run/docker")
--experimental Enable experimental features
--fixed-cidr string IPv4 subnet for fixed IPs
--fixed-cidr-v6 string IPv6 subnet for fixed IPs
-G, --group string Group for the unix socket (default "docker")
--help Print usage
-H, --host list Daemon socket(s) to connect to
--host-gateway-ip ip IP address that the special 'host-gateway' string in --add-host resolves to. Defaults to the IP address of the
default bridge
--icc Enable inter-container communication (default true)
--init Run an init in the container to forward signals and reap processes
--init-path string Path to the docker-init binary
--insecure-registry list Enable insecure registry communication
--ip ip Default IP when binding container ports (default 0.0.0.0)
--ip-forward Enable net.ipv4.ip_forward (default true)
--ip-masq Enable IP masquerading (default true)
--ip6tables Enable addition of ip6tables rules
--iptables Enable addition of iptables rules (default true)
--ipv6 Enable IPv6 networking
--label list Set key=value labels to the daemon
--live-restore Enable live restore of docker when containers are still running
--log-driver string Default driver for container logs (default "json-file")
-l, --log-level string Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
--log-opt map Default log driver options for containers (default map[])
--max-concurrent-downloads int Set the max concurrent downloads for each pull (default 3)
--max-concurrent-uploads int Set the max concurrent uploads for each push (default 5)
--max-download-attempts int Set the max download attempts for each pull (default 5)
--metrics-addr string Set default address and port to serve the metrics api on
--mtu int Set the containers network MTU
--network-control-plane-mtu int Network Control plane MTU (default 1500)
--no-new-privileges Set no-new-privileges by default for new containers
--node-generic-resource list Advertise user-defined resource
--oom-score-adjust int Set the oom_score_adj for the daemon
-p, --pidfile string Path to use for daemon PID file (default "/var/run/docker.pid")
--raw-logs Full timestamps without ANSI coloring
--registry-mirror list Preferred Docker registry mirror
--rootless Enable rootless mode; typically used with RootlessKit
--seccomp-profile string Path to seccomp profile
--selinux-enabled Enable selinux support
--shutdown-timeout int Set the default shutdown timeout (default 15)
-s, --storage-driver string Storage driver to use
--storage-opt list Storage driver options
--swarm-default-advertise-addr string Set default address or interface for swarm advertised address
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/root/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/root/.docker/key.pem")
--tlsverify Use TLS and verify the remote
--userland-proxy Use userland proxy for loopback traffic (default true)
--userland-proxy-path string Path to the userland proxy binary
--userns-remap string User/Group setting for user namespaces
-v, --version Print version information and quit
daemon.json
配置文件的位置： /etc/docker
{
"data-root": "/var/lib/docker"
}
