参考:

以stf-provider@.service单元文件为例

[Unit]Description=STF providerAfter=adbd.serviceBindsTo=adbd.service[Service]EnvironmentFile=/etc/environmentTimeoutStartSec=0Restart=alwaysExecStartPre=-/usr/bin/docker kill %p-%iExecStartPre=-/usr/bin/docker rm %p-%iExecStart=/usr/bin/docker run --rm \  --name %p-%i \  --net host \  openstf/stf:v2.3.1 \  stf provider \    --name "%H/%i" \    --connect-sub tcp://192.168.100.118:7250 \    --connect-push tcp://192.168.100.118:7270 \    --storage-url http://192.168.100.116/ \    --public-ip ${COREOS_PRIVATE_IPV4} \    --min-port=15000 \    --max-port=15500 \    --heartbeat-interval 10000 \    --screen-ws-url-pattern "ws://192.168.100.116/d/%i/<%= serial %>/<%= publicPort %>/"ExecStartPost=-/bin/sh /home/core/updateNginx.shExecStop=-/usr/bin/docker stop -t 10 %p-%i[X-Fleet]Conflicts=stf-provider@*.service

%p

非转义的前缀名(Unescaped prefix name)

其值就是stf-provider

%i

实例名(Instance name)

这个值取决于启动此服务时指定的名称 如fleetctl start stf-provider@1则值为1

%H

主机名(Hostname    Allows you to run the same unit file across many machines. Useful for service discovery. Example: /domains/example.com/%H:8081)

coreos中取的是/etc/hostname文件中的值

%n

Full unit name    Useful if the name of your unit is unique enough to be used as an argument on a command.

%N

Unescaped full unit name

%m

机器ID(Machine ID    Useful for namespacing etcd keys by machine. Example: /machines/%m/units)

coreos中取的是/etc/machine-id文件中的值

%b

BootID    Similar to the machine ID, but this value is random and changes on each boot