286 lines
8.1 KiB
Bash
Executable File
286 lines
8.1 KiB
Bash
Executable File
#!/bin/sh /etc/rc.common
|
|
|
|
USE_PROCD=1
|
|
START=99
|
|
|
|
extra_command "uciadd" "<interface> <device> <zone> Add docker bridge configuration to network and firewall uci config"
|
|
extra_command "ucidel" "<interface> <device> <zone> Delete docker bridge configuration from network and firewall uci config"
|
|
|
|
DOCKER_CONF_DIR="/tmp/dockerd"
|
|
DOCKERD_CONF="${DOCKER_CONF_DIR}/daemon.json"
|
|
|
|
uci_quiet() {
|
|
uci -q "${@}" >/dev/null
|
|
}
|
|
|
|
json_add_array_string() {
|
|
json_add_string "" "${1}"
|
|
}
|
|
|
|
find_network_device() {
|
|
local device="${1}"
|
|
local device_section=""
|
|
|
|
check_device() {
|
|
local cfg="${1}"
|
|
local device="${2}"
|
|
|
|
local type name
|
|
config_get type "${cfg}" type
|
|
config_get name "${cfg}" name
|
|
|
|
[ "${type}" = "bridge" ] && [ "${name}" = "${device}" ] \
|
|
&& device_section="${cfg}"
|
|
}
|
|
|
|
config_load network
|
|
config_foreach check_device device "${device}"
|
|
|
|
echo "${device_section}"
|
|
}
|
|
|
|
boot() {
|
|
uciadd
|
|
rc_procd start_service
|
|
}
|
|
|
|
uciadd() {
|
|
local iface="${1}"
|
|
local device="${2}"
|
|
local zone="${3}"
|
|
|
|
[ -z "${iface}" ] && {
|
|
iface="docker"
|
|
device="docker0"
|
|
zone="docker"
|
|
}
|
|
|
|
/etc/init.d/dockerd running && {
|
|
echo "Please stop dockerd service first"
|
|
exit 0
|
|
}
|
|
|
|
# Add network interface
|
|
if ! uci_quiet get network.${iface}; then
|
|
logger -t "dockerd-init" -p notice "Adding interface '${iface}' to network config"
|
|
uci_quiet add network interface
|
|
uci_quiet rename network.@interface[-1]="${iface}"
|
|
uci_quiet set network.@interface[-1].device="${device}"
|
|
uci_quiet set network.@interface[-1].proto="none"
|
|
uci_quiet set network.@interface[-1].auto="0"
|
|
uci_quiet commit network
|
|
fi
|
|
|
|
# Add docker bridge device
|
|
if [ "$(find_network_device "$device")" = "" ]; then
|
|
logger -t "dockerd-init" -p notice "Adding bridge device '${device}' to network config"
|
|
uci_quiet add network device
|
|
uci_quiet set network.@device[-1].type="bridge"
|
|
uci_quiet set network.@device[-1].name="${device}"
|
|
uci_quiet commit network
|
|
else
|
|
logger -t "dockerd-init" -p notice "Bridge device '${device}' already defined in network config"
|
|
fi
|
|
|
|
# Add firewall zone
|
|
if ! uci_quiet get firewall.${zone}; then
|
|
logger -t "dockerd-init" -p notice "Adding firewall zone '${zone}' to firewall config"
|
|
uci_quiet add firewall zone
|
|
uci_quiet rename firewall.@zone[-1]="${zone}"
|
|
uci_quiet set firewall.@zone[-1].input="ACCEPT"
|
|
uci_quiet set firewall.@zone[-1].output="ACCEPT"
|
|
uci_quiet set firewall.@zone[-1].forward="ACCEPT"
|
|
uci_quiet set firewall.@zone[-1].name="${zone}"
|
|
uci_quiet commit firewall
|
|
fi
|
|
|
|
# Add interface to firewall zone
|
|
if uci_quiet get firewall.${zone}; then
|
|
uci_quiet del_list firewall.${zone}.network="${iface}"
|
|
uci_quiet add_list firewall.${zone}.network="${iface}"
|
|
uci_quiet commit firewall
|
|
fi
|
|
|
|
reload_config
|
|
}
|
|
|
|
ucidel() {
|
|
local iface="${1}"
|
|
local device="${2}"
|
|
local zone="${3}"
|
|
|
|
[ -z "${iface}" ] && {
|
|
iface="docker"
|
|
device="docker0"
|
|
zone="docker"
|
|
}
|
|
|
|
/etc/init.d/dockerd running && {
|
|
echo "Please stop dockerd service first"
|
|
exit 0
|
|
}
|
|
|
|
# Remove network device
|
|
if uci_quiet delete network.$(find_network_device "${device}"); then
|
|
logger -t "dockerd-init" -p notice "Deleting bridge device '${device}' from network config"
|
|
uci_quiet commit network
|
|
fi
|
|
|
|
# Remove network interface
|
|
if uci_quiet get network.${iface}; then
|
|
logger -t "dockerd-init" -p notice "Deleting interface '${iface}' from network config"
|
|
uci_quiet delete network.${iface}
|
|
uci_quiet commit network
|
|
fi
|
|
|
|
# Remove interface from firewall zone
|
|
if uci_quiet get firewall.${zone}; then
|
|
logger -t "dockerd-init" -p notice "Deleting network interface '${iface}' in zone '${zone}' from firewall config"
|
|
uci_quiet del_list firewall.${zone}.network="${iface}"
|
|
uci_quiet commit firewall
|
|
# Remove Firewall zone if network is empty
|
|
if ! uci_quiet get firewall.${zone}.network; then
|
|
logger -t "dockerd-init" -p notice "Deleting firewall zone '${zone}' from firewall config"
|
|
uci_quiet delete firewall.${zone}
|
|
fi
|
|
uci_quiet commit firewall
|
|
fi
|
|
|
|
reload_config
|
|
}
|
|
|
|
process_config() {
|
|
local alt_config_file data_root log_level iptables bip
|
|
|
|
[ -f /etc/config/dockerd ] || {
|
|
# Use the daemon default configuration
|
|
DOCKERD_CONF=""
|
|
return 0
|
|
}
|
|
|
|
# reset configuration
|
|
rm -fr "${DOCKER_CONF_DIR}"
|
|
mkdir -p "${DOCKER_CONF_DIR}"
|
|
|
|
config_load 'dockerd'
|
|
config_get alt_config_file globals alt_config_file
|
|
[ -n "${alt_config_file}" ] && [ -f "${alt_config_file}" ] && {
|
|
ln -s "${alt_config_file}" "${DOCKERD_CONF}"
|
|
return 0
|
|
}
|
|
|
|
config_get data_root globals data_root "/opt/docker/"
|
|
config_get log_level globals log_level "warn"
|
|
config_get_bool iptables globals iptables "1"
|
|
|
|
# Don't add these options by default
|
|
# omission == docker defaults
|
|
config_get log_driver globals log_driver ""
|
|
config_get bip globals bip ""
|
|
config_get registry_mirrors globals registry_mirrors ""
|
|
config_get hosts globals hosts ""
|
|
config_get dns globals dns ""
|
|
config_get_bool ipv6 globals ipv6 ""
|
|
config_get ip globals ip ""
|
|
config_get fixed_cidr globals fixed_cidr ""
|
|
config_get fixed_cidr_v6 globals fixed_cidr_v6 ""
|
|
|
|
. /usr/share/libubox/jshn.sh
|
|
json_init
|
|
json_add_string "data-root" "${data_root}"
|
|
json_add_string "log-level" "${log_level}"
|
|
json_add_boolean "iptables" "${iptables}"
|
|
[ -z "${log_driver}" ] || json_add_string "log-driver" "${log_driver}"
|
|
[ -z "${bip}" ] || json_add_string "bip" "${bip}"
|
|
[ -z "${registry_mirrors}" ] || json_add_array "registry-mirrors"
|
|
[ -z "${registry_mirrors}" ] || config_list_foreach globals registry_mirrors json_add_array_string
|
|
[ -z "${registry_mirrors}" ] || json_close_array
|
|
[ -z "${hosts}" ] || json_add_array "hosts"
|
|
[ -z "${hosts}" ] || config_list_foreach globals hosts json_add_array_string
|
|
[ -z "${hosts}" ] || json_close_array
|
|
[ -z "${dns}" ] || json_add_array "dns"
|
|
[ -z "${dns}" ] || config_list_foreach globals dns json_add_array_string
|
|
[ -z "${dns}" ] || json_close_array
|
|
[ -z "${ipv6}" ] || json_add_boolean "ipv6" "${ipv6}"
|
|
[ -z "${ip}" ] || json_add_string "ip" "${ip}"
|
|
[ -z "${fixed_cidr}" ] || json_add_string "fixed-cidr" "${fixed_cidr}"
|
|
[ -z "${fixed_cidr_v6}" ] || json_add_string "fixed-cidr-v6" "${fixed_cidr_v6}"
|
|
json_dump > "${DOCKERD_CONF}"
|
|
|
|
[ "${iptables}" -eq "1" ] && config_foreach iptables_add_blocking_rule firewall
|
|
}
|
|
|
|
start_service() {
|
|
local nofile=$(cat /proc/sys/fs/nr_open)
|
|
|
|
process_config
|
|
|
|
procd_open_instance
|
|
procd_set_param stderr 1
|
|
if [ -z "${DOCKERD_CONF}" ]; then
|
|
procd_set_param command /usr/bin/dockerd
|
|
else
|
|
procd_set_param command /usr/bin/dockerd --config-file="${DOCKERD_CONF}"
|
|
fi
|
|
procd_set_param limits nofile="${nofile} ${nofile}"
|
|
procd_close_instance
|
|
}
|
|
|
|
reload_service() {
|
|
process_config
|
|
procd_send_signal dockerd
|
|
}
|
|
|
|
service_triggers() {
|
|
procd_add_reload_trigger 'dockerd'
|
|
}
|
|
|
|
iptables_add_blocking_rule() {
|
|
local cfg="${1}"
|
|
|
|
local device=""
|
|
local extra_iptables_args=""
|
|
|
|
handle_iptables_rule() {
|
|
local interface="${1}"
|
|
local outbound="${2}"
|
|
local extra_iptables_args="${3}"
|
|
|
|
local inbound=""
|
|
|
|
. /lib/functions/network.sh
|
|
network_get_physdev inbound "${interface}"
|
|
|
|
[ -z "${inbound}" ] && {
|
|
logger -t "dockerd-init" -p notice "Unable to get physical device for interface ${interface}"
|
|
return
|
|
}
|
|
|
|
# Wait for a maximum of 10 second per command, retrying every millisecond
|
|
local iptables_wait_args="--wait 10 --wait-interval 1000"
|
|
|
|
# Ignore errors as it might already be present
|
|
iptables ${iptables_wait_args} --table filter --new DOCKER-USER 2>/dev/null
|
|
if ! iptables ${iptables_wait_args} --table filter --check DOCKER-USER --in-interface "${inbound}" --out-interface "${outbound}" ${extra_iptables_args} --jump REJECT 2>/dev/null; then
|
|
logger -t "dockerd-init" -p notice "Drop traffic from ${inbound} to ${outbound}"
|
|
iptables ${iptables_wait_args} --table filter --insert DOCKER-USER --in-interface "${inbound}" --out-interface "${outbound}" ${extra_iptables_args} --jump REJECT
|
|
fi
|
|
}
|
|
|
|
config_get device "${cfg}" device
|
|
|
|
[ -z "${device}" ] && {
|
|
logger -t "dockerd-init" -p notice "No device configured for ${cfg}"
|
|
return
|
|
}
|
|
|
|
config_get extra_iptables_args "${cfg}" extra_iptables_args
|
|
config_list_foreach "${cfg}" blocked_interfaces handle_iptables_rule "${device}" "${extra_iptables_args}"
|
|
}
|
|
|
|
stop_service() {
|
|
if /etc/init.d/dockerd running; then
|
|
service_stop "/usr/bin/dockerd"
|
|
fi
|
|
}
|