devstack-plugin-container/devstack/lib/docker

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#!/bin/bash
# Dependencies:
#
# - functions
# - ``STACK_USER`` must be defined
# - ``ETCD_PORT`` must be defined if on swarm mode
# stack.sh
# ---------
# - install_docker
# Save trace setting
_XTRACE_DOCKER=$(set +o | grep xtrace)
set +o xtrace
# Defaults
# --------
DOCKER_ENGINE_SOCKET_FILE=${DOCKER_ENGINE_SOCKET_FILE:-/var/run/docker.sock}
DOCKER_ENGINE_PORT=${DOCKER_ENGINE_PORT:-2375}
SWARM_MODE=$(trueorfalse False SWARM_MODE)
# Functions
# ---------
function check_docker {
if is_ubuntu; then
dpkg -s docker-engine > /dev/null 2>&1 || dpkg -s docker-ce > /dev/null 2>&1
else
rpm -q docker-engine > /dev/null 2>&1 || rpm -q docker > /dev/null 2>&1 || rpm -q docker-ce > /dev/null 2>&1
fi
}
function install_docker {
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
local lsb_dist=${os_VENDOR,,}
local dist_version=${os_CODENAME}
local arch=$(dpkg --print-architecture)
if is_ubuntu; then
apt_get install linux-image-extra-$(uname -r) linux-image-extra-virtual
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository -y \
"deb [arch=${arch}] https://download.docker.com/linux/${lsb_dist} \
${dist_version} \
stable"
REPOS_UPDATED=False apt_get_update
apt_get install docker-ce
elif is_fedora; then
if [[ "$lsb_dist" = "centos" ]]; then
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
elif [[ "$lsb_dist" = "fedora" ]]; then
sudo dnf config-manager \
--add-repo \
https://download.docker.com/linux/fedora/docker-ce.repo
fi
yum_install docker-ce
fi
}
function configure_docker {
# After an ./unstack it will be stopped. So it is ok if it returns exit-code == 1
sudo systemctl stop docker.service || true
local cluster_store_opts=""
if [[ "$SWARM_MODE" = "True" ]]; then
cluster_store_opts+="\"cluster-store\": \"etcd://localhost:$ETCD_PORT\","
fi
local docker_config_file=/etc/docker/daemon.json
sudo mkdir -p $(dirname ${docker_config_file})
cat <<EOF | sudo tee $docker_config_file >/dev/null
{
$cluster_store_opts
"group": "$STACK_USER",
"hosts": [
"unix://$DOCKER_ENGINE_SOCKET_FILE",
"tcp://0.0.0.0:$DOCKER_ENGINE_PORT"
]
}
EOF
# NOTE(hongbin): We override ExecStart to workaround issue 22339.
# https://github.com/docker/docker/issues/22339
local docker_drop_in_file=/etc/systemd/system/docker.service.d/docker.conf
sudo mkdir -p $(dirname ${docker_drop_in_file})
cat <<EOF | sudo tee $docker_drop_in_file >/dev/null
[Service]
ExecStart=
ExecStart=/usr/bin/dockerd --config-file=$docker_config_file
EOF
sudo systemctl daemon-reload
sudo systemctl --no-block restart docker.service
}
function stop_docker {
sudo systemctl stop docker.service || true
}
# Restore xtrace
$_XTRACE_DOCKER