| Commit message (Collapse) | Author | Files | Lines |
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The email will be send for both sucessfull and failed runs.
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This way we can implement dynamic (provision-time) Floating IP, instead of a
hardcoded pre-created Floating IP address.
Related changes:
- remove =terraform-godaddy= provider, use =digitalocean_record= instead;
- create =generated-known-hosts= after provisioning instead of during
=setup.sh=: use the =$(terraform output public_floating_ip)= value to make this
file dynamic;
- remote the =$PINNED_IP= and =$TF_VAR_floating_ip= variables;
- add type and descriptions to variable declarations in Terraform recipe.
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The =terraform-godaddy= package supports only Terraform 0.11 as of now.
It is not packaged by default by nixpkgs, and the =postInstall= hook is required
because Terraform looks for providers usinthe the =terraform-provider-$name=
template, which the package doesn't follow.
I had to remove the loop on vps.tf since it requires Terraform 0.12. I'll either
wait for =terraform-godaddy= to upgrade to 0.12 or try to do it myself if it
bothers me enough.
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This way I can dynamically control whether to destroy and recreate all the
existing infrastructure entirely from scratch.
The advantages of doing so are:
- test the non-existence of local state on every deployment;
- make sure I can always recreate everything from scratch.
The disadvantages are:
- slower deployment times;
- longer downtime during deployments.
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The deployment is not quite working, and I'm unable to test right now:
DigitalOcean is returning 503 for my requests.
As of this commit, I can run =ansible-playbook provider.yml= more than once and
it will actually be idempotent.
Notes:
- SSH fingerprint are now taken from the public key file instead of manually
supplying it in the terraform template using the =digitalocean_ssh_key=
resource;
- use Ansible instead of ad-hoc Bash scripts for provisioning the Droplets
created by Terraform;
- use the =filename.env.extension= to create the concrete files in CI;
- use the =user_data= to add the know SSH key pair to the newly created Droplet;
- add =rotate-ssh-keys.sh= utils;
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Create a new backup entry before running =terraform apply=, which may (or may
not) destroy the current machine.
This shouldn't be an issue for the backup itself, since all of the data should
be stored in a separate Block Storage Volume, but we can take advantage of the
sevices already needing to be taken down in order to perform a full backup of
the data.
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