feat(helm-chart): support adding providers/plugins

[GMartinez-Sisti]

what

• Closes Helm chart: support adding providers/plugins #227
• Add init container to install providers/plugins in a directory shared with atlantis,
• The implementation is simple, enabling chart users to personalize/customize it, to prevent breaking changes I haven't reused the existing initContainers key
• Add new ci config file ci-init-config-values.yaml to ensure the feature works

tests

Prepare environment (click to expand)

→ kind create cluster --name test-atlantis
Creating cluster "test-atlantis" ...
 ✓ Ensuring node image (kindest/node:v1.27.3) 🖼
 ✓ Preparing nodes 📦
 ✓ Writing configuration 📜
 ✓ Starting control-plane 🕹️
 ✓ Installing CNI 🔌
 ✓ Installing StorageClass 💾
Set kubectl context to "kind-test-atlantis"
You can now use your cluster with:

kubectl cluster-info --context kind-test-atlantis

Have a nice day! 👋

→ cd charts/atlantis

→ helm upgrade -i atlantis-test . -f ci/ci-values-init-config.yaml
Release "atlantis-test" does not exist. Installing it now.
NAME: atlantis-test
LAST DEPLOYED: Sat Jul  8 18:47:12 2023
NAMESPACE: default
STATUS: deployed
REVISION: 1
NOTES:
1. Get the application URL by running these commands:
2. Atlantis will not start successfully unless at least one of the following sets of credentials are specified (see values.yaml for detailed usage):
  - github
  - githubApp
  - gitlab
  - bitbucket

Init-config container logs (click to expand)

→ kubectl logs atlantis-test-0 -c init-config
+ TG_VERSION=v0.47.0
+ TG_SHA256_SUM=98d45f6bfbfae84b51364c1ad6920f09ecb4d834908b0535e4e331a9fc6fc75b
+ TG_FILE=/plugins/terragrunt
+ wget https://github.com/gruntwork-io/terragrunt/releases/download/v0.47.0/terragrunt_linux_amd64 -O /plugins/terragrunt
Connecting to github.com (140.82.121.4:443)
Connecting to objects.githubusercontent.com (185.199.109.133:443)
saving to '/plugins/terragrunt'
terragrunt            30% |*********                       | 13.2M  0:00:02 ETA
terragrunt           100% |********************************| 43.7M  0:00:00 ETA
'/plugins/terragrunt' saved
+ echo '98d45f6bfbfae84b51364c1ad6920f09ecb4d834908b0535e4e331a9fc6fc75b  /plugins/terragrunt'
+ sha256sum -c
/plugins/terragrunt: OK
+ chmod 755 /plugins/terragrunt
+ terragrunt -v
terragrunt version v0.47.0
+ TAC_VERSION=1.16.0
+ TAC_SHA256_SUM=fc3b069cf4ae51e9b7a7d01f09862d1974b260fffb3ec857d661d7b1756fe26f
+ TAC_FILE=/plugins/terragrunt-atlantis-config
+ wget https://github.com/transcend-io/terragrunt-atlantis-config/releases/download/v1.16.0/terragrunt-atlantis-config_1.16.0_linux_amd64.tar.gz
Connecting to github.com (140.82.121.4:443)
Connecting to objects.githubusercontent.com (185.199.108.133:443)
saving to 'terragrunt-atlantis-config_1.16.0_linux_amd64.tar.gz'
terragrunt-atlantis- 100% |********************************| 16.6M  0:00:00 ETA
'terragrunt-atlantis-config_1.16.0_linux_amd64.tar.gz' saved
+ sha256sum -c
+ echo 'fc3b069cf4ae51e9b7a7d01f09862d1974b260fffb3ec857d661d7b1756fe26f  terragrunt-atlantis-config_1.16.0_linux_amd64.tar.gz'
terragrunt-atlantis-config_1.16.0_linux_amd64.tar.gz: OK
+ tar xf terragrunt-atlantis-config_1.16.0_linux_amd64.tar.gz
+ cp -fv terragrunt-atlantis-config_1.16.0_linux_amd64/terragrunt-atlantis-config_1.16.0_linux_amd64 /plugins/terragrunt-atlantis-config
'terragrunt-atlantis-config_1.16.0_linux_amd64/terragrunt-atlantis-config_1.16.0_linux_amd64' -> '/plugins/terragrunt-atlantis-config'
+ chmod 755 /plugins/terragrunt
+ terragrunt-atlantis-config version
terragrunt-atlantis-config '1.16.0'

→ kubectl exec atlantis-test-0 -it -c atlantis -- terragrunt -v
terragrunt version v0.47.0

→ kubectl exec atlantis-test-0 -it -c atlantis -- terragrunt-atlantis-config version
terragrunt-atlantis-config '1.16.0'

[GenPage]

Just need to dance chart version bumps with other pending approved PRs

[GMartinez-Sisti]

Merged main into branch to fix conflict.

[jamengual]

@GMartinez-Sisti could you fix the conflict please?

[GMartinez-Sisti]

@GMartinez-Sisti could you fix the conflict please?

Done. My linter updated the README.md file please let me know if this is ok.

Also, I had to manually update the README.md file 😕 can we implement something like helm-docs to make it easier and standard?

[GMartinez-Sisti]

I'll fix the issues later. They are related to the schema check implementation. Related discussion on slack: https://atlantis-community.slack.com/archives/C04ES70Q6E8/p1700141493558409. TL;DR: we need guidelines on what to do when this happens.

[GMartinez-Sisti]

ℹ️ Push force to update the commit email.

[alaa-ledger]

Hey

are there any prerequisites to use initConfig that was introduced in this PR ? I keep getting atlantis: - (root): Additional property initConfig is not allowed when trying to use it.

here's an open issue describing the same thing I'm going through #340

EDIT: I had an outdated chart version, updating it fixed the error and I could run custom scripts