Upgrade Terraform to 0.8.8

[arkan]

Hey,

Thanks for your Drone plugin. We started using it, however Terraform appeared to be outdated.

This PR is just a quick upgrade to the latest available Terraform version: 0.8.7

Cheers

[jmccann]

hehehe. The question is to use package from alpine or manually control versioning in Dockerfile.

Recent work was done by @tboerger via #23 to move away from how it used to be managed (which is what you are basically asking to revert back to).

While we discuss the path to go with in the future ... you do have the option of building/hosting your own docker image of the plugin to get the version of terraform you want.

[arkan]

Thanks for the answer @jmccann - We are using our own fork for the moment.

[tboerger]

Beside that, terraform gets compiled statically compiled working on musl? Since when?

[tboerger]

I will update the alpine terraform package now.

[arkan]

@tboerger Ideally that would be great if you could derive your image from golang:1.8-alpine in order to have an autonomous build process.
This way, we could easily build new release with a simple push to Github.com and have the build process automatically handled by Docker Hub or Quay.io.

[tboerger]

Ideally the terraform package on the alpine repo gets updated... If building it doesn't fail...

[arkan]

I'm not sure we want to depend on Alpine to get the terraform package.
We have very precise needs on the Terraform version and we must be able to control the used version.
If you choose to go this way, we will have to maintain our own fork I think.

[tboerger]

In the end it's the decision of @jmccann. Currently v0.9.0 and v0.8.x fails to build on alpine.

[arkan]

Yep sure. I updated our fork to be built from a Golang-alpine image :)

[tboerger]

Why are you changing the build process now?

[jmccann]

I merged #38 which should address this. Thanks!

[jmccann]

FYI, created new docker tag jmccann/drone-terraform:1-0.8.8 for this ...