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VAULT-31181: Add pipeline tool to Vault #28536

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VAULT-31181: Add pipeline tool to Vault #28536

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@ryancragun ryancragun commented Sep 30, 2024

Description

As the Vault pipeline and release processes evolve over time, so too must the tooling that drives them. Historically we've utilized a combination of CI features and shell scripts that are wrapped into make targets to drive our CI. While this
approach has worked, it requires careful consideration of what features to use (bash in CI almost never matches bash in developer machines, etc.) and often requires a deep understanding of several CLI tools (jq, etc). make itself also has limitations in user experience, e.g. passing flags.

As we're all in on Github Actions as our pipeline coordinator, continuing to utilize and build CLI tools to perform our pipeline tasks makes sense. This PR adds a new CLI tool called pipeline which we can use to build new isolated tasks that we can string together in Github Actions. We intend to use this utility as the interface for future release automation work, see VAULT-27514.

For the first task in this new pipeline tool, I've chosen to build a small command that allows us to list Vault versions between a range. The goal is to utilize this tool on all active branches to automatically populate a list of all N-3 versions relative to that Vault edition and branch. We'll feed that list of released versions into our Enos sampling algorithm and make all of those versions candidates in our upgrade testing scenarios, allowing us to test upgrades from all supported versions over the lifecycle of a given Vault version. As it's automated and dynamic we will no longer have to maintain a list of initial versions on each branch. See VAULT-31180 and VAULT-31182.

We also create a new tools Go module so that our pipeline tooling dependencies ought not interfere with those required to build Vault.

TODO only if you're a HashiCorp employee

  • Backport Labels: If this PR is in the ENT repo and needs to be backported, backport
    to N, N-1, and N-2, using the backport/ent/x.x.x+ent labels. If this PR is in the CE repo, you should only backport to N, using the backport/x.x.x label, not the enterprise labels.
    • If this fixes a critical security vulnerability or severity 1 bug, it will also need to be backported to the current LTS versions of Vault. To ensure this, use all available enterprise labels.
  • ENT Breakage: If this PR either 1) removes a public function OR 2) changes the signature
    of a public function, even if that change is in a CE file, double check that
    applying the patch for this PR to the ENT repo and running tests doesn't
    break any tests. Sometimes ENT only tests rely on public functions in CE
    files.
  • Jira: If this change has an associated Jira, it's referenced either
    in the PR description, commit message, or branch name.
  • RFC: If this change has an associated RFC, please link it in the description.
  • ENT PR: If this change has an associated ENT PR, please link it in the
    description. Also, make sure the changelog is in this PR, not in your ENT PR.

@ryancragun ryancragun requested a review from a team as a code owner September 30, 2024 17:20
@github-actions github-actions bot added the hashicorp-contributed-pr If the PR is HashiCorp (i.e. not-community) contributed label Sep 30, 2024
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github-actions bot commented Sep 30, 2024

CI Results:
All Go tests succeeded! ✅

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github-actions bot commented Sep 30, 2024

Build Results:
All builds succeeded! ✅

As the Vault pipeline and release processes evolves over time, so too must
the tooling that drives it. Historically we've utilized a combination of CI
features and shell scripts that are wrapped into make targets to drive
our CI. While this approach has worked, it requires careful consideration
of what features to use (bash in CI almost never matches bash in developer
machines, etc.) and often requires a deep understanding of several CLI
tools (jq, etc). `make` itself also has limitations in user experience, e.g.
passing flags.

As we're all in on Github Actions as our pipeline coordinator, continuing to
utilize and build CLI tools to perform our pipeline tasks makes sense.
This PR adds a new CLI tool called `pipeline` which we can use to build
new isolated tasks that we can string together in Github Actions. We intend
to use this utility as the interface for future release automation work,
see VAULT-27514.

For the first task in this new pipeline tool, I've chosen to build a
small command that allows us to list Vault versions between a range.
The goal is to utilize this tool on all active branches to automatically
populate a list of all N-3 versions relative to that Vault edition and
branch. We'll feed that list of released versions into our Enos sampling
algorithm and make all of those versions candidates in our upgrade
testing scenarios, allowing us to test upgrades from all supported
versions over the lifecycle of a given Vault version. As it's automated
and dyanmic we will no longer have to maintain a list of initial
versions on each branch.

We also create a new tools Go module so that our pipeline tooling
dependencies will not be required to build Vault.

Signed-off-by: Ryan Cragun <me@ryan.ec>
Signed-off-by: Ryan Cragun <me@ryan.ec>
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This is an awesome step forward on how we test upgrades as well as paving a path for integrating more robust automation in our pipeline in the future! 🔥

Signed-off-by: Ryan Cragun <me@ryan.ec>
Signed-off-by: Ryan Cragun <me@ryan.ec>
Signed-off-by: Ryan Cragun <me@ryan.ec>
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