mulitier application blueprint_vRA

[jvm2016]

Hi All ,

Good Morning,

could someone from blue print development team check and validate the following scenerio which has been taken from lab HOL-1821-02-CMP.

its easy to create plain  vanila blueprint but when it come to creating blueprint for multitier application there are few options avaiable.

iam refeering to the example mentioned in above lab wherein we need to create blueprint for deployment of wordpress application using centos and software componenets which are

imported to vRAusing cloud client .below is the screen shot from lab.

and below is the screenshot of metadata.yamlthat desxcribes the dependencies among different components .

and as per above file following blueprint is deveoped which is also shown in lab .

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could someone validate that above dependencies which are shown in final blueprint are as per metadata.yaml file ??? for example where in yaml file php service is dependent on apache service.??

and similarly wordpress db is dependent on mysqlas per metadata file but not shown in final blueprint . 

Thnaks in advance.

[daphnissov]

Are you only asking about this one specific HOL, or is your question targeted at dependencies in general and how they work?

[jvm2016]

iam asking how dependencies work using example mentioned in the lab .

as per lab manual metadata.yaml is used to describe dependencies.

[daphnissov]

Yes, that is correct. Dependencies follow the tip of the arrow. So in the web server example, the CentOS configuration must be run before all others. After that, the Apache can be run which has a configuration element placed on top of it. Once those are successful, PHP can be invoked.