Use HCP Consul and HCP Vault for the Consul and Vault clusters used in E2E testing. This has the following benefits:
* Without the need to support mTLS bootstrapping for Consul and Vault, we can simplify the mTLS configuration by leaning on Terraform instead of janky bash shell scripting.
* Vault bootstrapping is no longer required, so we can eliminate even more janky shell scripting
* Our E2E exercises HCP, which is important to us as an organization
* With the reduction in configurability, we can simplify the Terraform configuration and drop the complicated `provision.sh`/`provision.ps1` scripts we were using previously. We can template Nomad configuration files and upload them with the `file` provisioner.
* Packer builds for Linux and Windows become much simpler.
tl;dr way less janky shell scripting!
This allows us to spin up e2e clusters with mTLS configured for all HashiCorp services, i.e. Nomad, Consul, and Vault. Used it for testing #11089 .
mTLS is disabled by default. I have not updated Windows provisioning scripts yet - Windows also lacks ACL support from before. I intend to follow up for them in another round.
Ease spinning up a cluster, where binaries are fetched from arbitrary
urls. These could be CircleCI `build-binaries` job artifacts, or
presigned S3 urls.
Co-authored-by: Tim Gross <tgross@hashicorp.com>
Ensure that the e2e clusters are isolated and never attempt to autojoin
with another e2e cluster.
This ensures that each cluster servers have a unique `ConsulAutoJoin`,
to be used for discovery.
Adds a `nomad_acls` flag to our Terraform stack that bootstraps Nomad ACLs via
a `local-exec` provider. There's no way to set the `NOMAD_TOKEN` in the Nomad
TF provider if we're bootstrapping in the same Terraform stack, so instead of
using `resource.nomad_acl_token`, we also bootstrap a wide-open anonymous
policy. The resulting management token is exported as an environment var with
`$(terraform output environment)` and tests that want stricter ACLs will be
able to write them using that token.
This should also provide a basis to do similar work with Consul ACLs in the
future.
Have Terraform run the target-specific `provision.sh`/`provision.ps1` script
rather than the test runner code which needs to be customized for each
distro. Use Terraform's detection of variable value changes so that we can
re-run the provisioning without having to re-install Nomad on those specific
hosts that need it changed.
Allow the configuration "profile" (well-known directory) to be set by a
Terraform variable. The default configurations are installed during Packer
build time, and symlinked into the live configuration directory by the
provision script. Detect changes in the file contents so that we only upload
custom configuration files that have changed between Terraform runs
