AWS CloudFormation-将cfn-init源文件导入到环境中

Question

I would like to source a file containing many environment variable exports into the cf-init environment.

01_source_vars:
cwd: "/opt/easy-rsa"
test: "test -e /opt/easy-rsa/vars"
command: "source /opt/easy-rsa/vars"

I see that there is an "env" property for commands in cfn-init, however how can I use that when sourcing a file?

Answer 1

The env property is optional. I am not sure if you can use the variable into another set of command. If you want to use it within the command, you can use multiple commands in the command using \\n You can specify more than one command under that command line using \\n for executing the command.

Please check this code below.

command: "source file\n echo $variable\n ..."

If you have really long command, you can use the Fn::Join to simplify the value of command.