83 lines
2.0 KiB
Bash
83 lines
2.0 KiB
Bash
#!/bin/sh
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. /etc/sysconfig/heat-params
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if [ "$NETWORK_DRIVER" != "flannel" ]; then
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exit 0
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fi
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FLANNEL_DOCKER_BRIDGE_BIN=/usr/local/bin/flannel-docker-bridge
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FLANNEL_DOCKER_BRIDGE_SERVICE=/etc/systemd/system/flannel-docker-bridge.service
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DOCKER_FLANNEL_CONF=/etc/systemd/system/docker.service.d/flannel.conf
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FLANNEL_DOCKER_BRIDGE_CONF=/etc/systemd/system/flanneld.service.d/flannel-docker-bridge.conf
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mkdir -p /etc/systemd/system/docker.service.d
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mkdir -p /etc/systemd/system/flanneld.service.d
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cat >> $FLANNEL_DOCKER_BRIDGE_BIN <<EOF1
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#!/bin/sh
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if ! [ "\$FLANNEL_SUBNET" ] && [ "\$FLANNEL_MTU" ] ; then
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echo "ERROR: missing required environment variables." >&2
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exit 1
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fi
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# NOTE(mnaser): Since Docker 1.13, it does not set the default forwarding
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# policy to ACCEPT which will cause CNI networking to fail.
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iptables -P FORWARD ACCEPT
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mkdir -p /run/flannel/
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cat > /run/flannel/docker <<EOF2
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DOCKER_NETWORK_OPTIONS="--bip=\$FLANNEL_SUBNET --mtu=\$FLANNEL_MTU"
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EOF2
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EOF1
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chown root:root $FLANNEL_DOCKER_BRIDGE_BIN
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chmod 0755 $FLANNEL_DOCKER_BRIDGE_BIN
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cat >> $FLANNEL_DOCKER_BRIDGE_SERVICE <<EOF
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[Unit]
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After=flanneld.service
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Before=docker.service
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Requires=flanneld.service
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[Service]
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Type=oneshot
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EnvironmentFile=/run/flanneld/subnet.env
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ExecStart=/usr/local/bin/flannel-docker-bridge
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[Install]
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WantedBy=docker.service
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EOF
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chown root:root $FLANNEL_DOCKER_BRIDGE_SERVICE
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chmod 0644 $FLANNEL_DOCKER_BRIDGE_SERVICE
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cat >> $DOCKER_FLANNEL_CONF <<EOF
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[Unit]
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Requires=flannel-docker-bridge.service
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After=flannel-docker-bridge.service
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[Service]
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EnvironmentFile=/run/flannel/docker
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EOF
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chown root:root $DOCKER_FLANNEL_CONF
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chmod 0644 $DOCKER_FLANNEL_CONF
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cat >> $FLANNEL_DOCKER_BRIDGE_CONF <<EOF
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[Unit]
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Requires=flannel-docker-bridge.service
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Before=flannel-docker-bridge.service
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[Install]
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Also=flannel-docker-bridge.service
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EOF
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chown root:root $FLANNEL_DOCKER_BRIDGE_CONF
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chmod 0644 $FLANNEL_DOCKER_BRIDGE_CONF
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echo "activating service flanneld"
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systemctl enable flanneld
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systemctl start flanneld
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