Change Dockerfile terraform version to 0.11.14

[tonejito]

Terraform was v0.11.13, might require a rebuild of the official docker image and push to DockerHub

[codecov]

Codecov Report

Merging #641 into master will not change coverage.
The diff coverage is n/a.

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##           master     #641   +/-   ##
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  Coverage   72.17%   72.17%           
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  Files          61       61           
  Lines        4633     4633           
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  Hits         3344     3344           
  Misses       1044     1044           
  Partials      245      245

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[codecov]

Codecov Report

Merging #641 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #641   +/-   ##
=======================================
  Coverage   72.17%   72.17%           
=======================================
  Files          61       61           
  Lines        4633     4633           
=======================================
  Hits         3344     3344           
  Misses       1044     1044           
  Partials      245      245

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 756bf18...419d112. Read the comment docs.

[lkysow]

Thanks for the PR! Since 0.12 is out though, I'm going to upgrade to that.
You can still use 0.11.14 though, just set the --default-tf-version=0.11.14 flag.

[pratikmallya]

@lkysow I'm sure you are aware of it, but updating atlantis to use 0.12 might break a lot of folks' state files... do you think 0.12 could be enabled optionally instead of by default? Or is the plan to just update to 0.12 and ask users to not upgrade atlantis until they migrate all their terraform configs to 0.12?

[lkysow]

@pratikmallya users just need to set --default-tf-version to whatever version they need and it won't break anything.

[tonejito]

Can we at least put the 0.11.14 version in the list of AVAILABLE_TERRAFORM_VERSIONS on the Dockerfile?. I made exactly this on a custom Dockerfile and it certainly worked.

It makes sense to keep 0.11.14 because atlantis aim to keep the latest release of each terraform version and #645 just removed 0.11.13:

# In the official Atlantis image we only have the latest of each Terrafrom version.
RUN AVAILABLE_TERRAFORM_VERSIONS="0.8.8 0.9.11 0.10.8 0.11.14 ${DEFAULT_TERRAFORM_VERSION}" && \

[lkysow]

@tonejito yes that makes sense!

[lkysow]

Also you're right, that was a mistake on my part, thanks 🍺