Add CircleCI integration

[alikhajeh1]

@sashman is already working on this, https://github.com/infracost/infracost-orb

[m-yosefpor]

Now that we have docker image on dockerhub, can we just use that instead of building it in the orb file? @sashman

[m-yosefpor]

I've created a PR for the above comment: infracost/infracost-orb#2

[sashman]

I'll take this

[sashman]

Working on infracost/infracost-orb#1 next

[amioranza]

Hi, this issue has any updates? I'm really interested to integrate infracost at circleci.

[alikhajeh1]

@amioranza yep! I've simplified the CI script so it can be re-used across GitHub, GitLab and CircleCI, the refactor will be merged today/tmrw and I'll update the orb to use it next right after that :)

[amioranza]

Awesome!!! Thanks.

[alikhajeh1]

@amioranza this is now released, please see https://github.com/infracost/infracost-orb

1. I added support for GitHub and BitBucket and tested using their cloud offerings, are you using one of these? I also added 2 envs that can be useful for self-hosted ones but I haven't tested those.
2. If you're using BitBucket, please note that it does not show commit comments in the pull request page so you have to check the commit's comments page to see the Infracost output.

What's your take on infracost CI integrations storing the infracost output from the current branch as an artifact in the build, useful for future reference or is the diff comment enough?

I'll close the issue but feel free to comment to let me know how it goes.

[amioranza]

Hi @alikhajeh1:
First of all thanks for your works.

1. We use github cloud. I'll integrate the new orb and test it.
2. As bitbucket is not our current scenario, it is ok for me.

I think that infracost comment is enough, it we need to see the history we can go to the PR and look at the comments.