服务器

在dockerfile中给指定文件添加多行，注意echo后面的$符号

[root@master01 ovn-node]# cat dockerfile 
FROM ovn-node:2.11.2

# sed 删除指定行
RUN sed -i \'53d\' /root/start-ovs.sh

# 用echo添加多行内容
RUN echo $\'OVERLAY_ENDPOINT=`hostname -i`\\n\\
ovs-vsctl set open . external-ids:ovn-encap-ip=${OVERLAY_ENDPOINT}\\n\\
\\n\\
# create a bridge , then mapping outside port\\n\\
ovs-vsctl add-br br-ex\\n\\
ovs-vsctl set Open_vSwitch . external-ids:ovn-bridge-mappings=phyNet:br-ex\\n\\
\\n\\
# add nic
ovs-vsctl add-port br-ex ${OVN_PHYNET_NIC}\\n\\
\\n\\
tail -f /var/log/openvswitch/ovs-vswitchd.log\\n\'\\
>> /root/start-ovs.sh

CMD [/bin/bash,/root/start-ovs.sh]

结果： 注意多行文本中# 注释行，并没有输入到指定文件中

[root@master01 ovn-node]# cat /root/start-ovs.sh
# Set remote ovn-sb for ovn-controller to connect to
ovs-vsctl set open . external-ids:ovn-remote=tcp:${OVN_SB_SERVICE_HOST}:${OVN_SB_SERVICE_PORT}
ovs-vsctl set open . external-ids:ovn-encap-type=geneve

OVERLAY_ENDPOINT=`hostname -i`
ovs-vsctl set open . external-ids:ovn-encap-ip=${OVERLAY_ENDPOINT}

ovs-vsctl add-br br-ex
ovs-vsctl set Open_vSwitch . external-ids:ovn-bridge-mappings=phyNet:br-ex

ovs-vsctl add-port br-ex ${OVN_PHYNET_NIC}

tail -f /var/log/openvswitch/ovs-vswitchd.log

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持亿速云。