[英]How to pass aws_elastic_beanstalk_environment settings to a Terraform module
I'm using a Terraform module to manage AWS Elastic Beanstalk applications and environments, and want to pass a list of environment variables to the module. 我正在使用Terraform模块来管理AWS Elastic Beanstalk应用程序和环境,并希望将环境变量列表传递给模块。
For lack of a better solution, I'm currently passing in a flat list of names and values, and declare a fixed number of setting
stanzas (see below). 由于缺乏更好的解决方案,我目前正在传递一个名单和值的平面列表,并声明固定数量的
setting
节(见下文)。 This seems to work, unless of course someone's going to pass in more environment variables than I expected. 这似乎有效,除非当然有人会传递比我预期更多的环境变量。
So - is there a better way to achieve this? 那么 - 有更好的方法来实现这一目标吗?
# file: main.tf
variable env_vars {
default = ["FIRST_ENV_VAR", "1", "SECOND_ENV_VAR", "2"]
}
provider "aws" {
region = "eu-central-1"
}
module "beanstalk-app" {
source = "./beanstalk"
env_vars = "${var.env_vars}"
}
# file: beanstalk/main.tf
variable "env_vars" {
type = "list"
}
resource "aws_elastic_beanstalk_application" "app" {
name = "myapp"
}
resource "aws_elastic_beanstalk_environment" "env" {
name = "myapp-env"
application = "${aws_elastic_beanstalk_application.app.name}"
solution_stack_name = "64bit Amazon Linux 2016.03 v2.1.3 running Tomcat 8 Java 8"
setting {
namespace = "aws:elasticbeanstalk:application:environment"
name = "${element(var.env_vars, 0)}"
value = "${element(var.env_vars, 1)}"
}
setting {
namespace = "aws:elasticbeanstalk:application:environment"
name = "${element(var.env_vars, 2)}"
value = "${element(var.env_vars, 3)}"
}
setting {
namespace = "aws:elasticbeanstalk:application:environment"
name = "${element(var.env_vars, 4)}"
value = "${element(var.env_vars, 5)}"
}
}
In HCL repeated object blocks are equivalent to a list (see here . Therefore you can pass a variable (list of maps) to settings
. 在HCL中,重复的对象块相当于一个列表(请参见此处 。因此,您可以将变量(地图列表)传递给
settings
。
variable "settings" {
type = "list"
default = [
{
namespace = "aws:elasticbeanstalk:application:environment"
name = "FOO"
value = "BAR"
},
{
namespace = "aws:elasticbeanstalk:application:environment"
name = "BAZ"
value = "HAZ"
},
]
}
resource "aws_elastic_beanstalk_environment" "env" {
name = "myapp-env"
application = "${aws_elastic_beanstalk_application.app.name}"
solution_stack_name = "64bit Amazon Linux 2016.03 v2.1.3 running Tomcat 8 Java 8"
setting = ["${var.settings}"]
}
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