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aliyun vpn gateway cloud-init user-data
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| #cloud-config | |
| write_files: | |
| - content: | | |
| #!/bin/bash | |
| META_URL=http://100.100.100.200/2016-01-01/meta-data | |
| VPC_CIDR_BLOCK=$(curl $META_URL/vpc-cidr-block) | |
| MASK=$(echo ${VPC_CIDR_BLOCK} | sed -E 's%([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/([0-9]+)%\5%') | |
| if [ $MASK == '8' ];then | |
| PREFIX=$(echo ${VPC_CIDR_BLOCK} | sed -E 's%([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/([0-9]+)%\1.253.253%') | |
| elif [ $MASK == '16' ];then | |
| PREFIX=$(echo ${VPC_CIDR_BLOCK} | sed -E 's%([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/([0-9]+)%\1.\2.253%') | |
| elif [ $MASK == '24' ];then | |
| PREFIX=$(echo ${VPC_CIDR_BLOCK} | sed -E 's%([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/([0-9]+)%\1.\2.\3%') | |
| fi | |
| if [ ! -d /etc/dnsmasq.d ];then | |
| mkdir -p /etc/dnsmasq.d/ | |
| fi | |
| cat <<EOF >/etc/dnsmasq.d/dnsmasq-dhcp | |
| dhcp-range=${PREFIX}.100,${PREFIX}.200,255.255.255.0,6h | |
| EOF | |
| cat <<EOF >/etc/netplan/99-netcfg.yaml | |
| network: | |
| version: 2 | |
| renderer: networkd | |
| ethernets: | |
| eth0: | |
| dhcp4: yes | |
| dhcp6: no | |
| vpn_0: | |
| dhcp4: yes | |
| dhcp6: no | |
| optional: true | |
| dhcp4-overrides: | |
| use-dns: no | |
| tap_0: | |
| dhcp4: no | |
| dhcp6: no | |
| addresses: | |
| - ${PREFIX}.253/24 | |
| EOF | |
| netplan generate | |
| netplan apply | |
| owner: root:root | |
| path: /root/dnsmasq-init.sh | |
| permissions: '0644' | |
| runcmd: | |
| - /bin/bash /root/dnsmasq-init.sh |
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