#terragrunt (2020-05)
Terragrunt discussions
Archive: https://archive.sweetops.com/terragrunt/
2020-05-04
2020-05-07
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Is anyone using any kind of IDE with Terragrunt autocompletion on dependencies and inputs ? I’m curious.
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@antonbabenko are you using an IDE ?
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I wrote a blog about why I find prefer Terragrunt to just Terraform: https://transcend.io/blog/why-we-use-terragrunt
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How Transcend deploys high-stakes infrastructure with confidence.
2020-05-08
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@David Nice! Can I ask about what your Terragrunt on disk structure looks like?
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Sure thing! “on disk” as in what our file structure looks like?
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Yup
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terraform
├── coreeng
│ ├── account.hcl
│ └── global
│ ├── env.hcl
│ └── us-east-1
│ ├── atlantis
│ │ └── terragrunt.hcl
│ ├── ecr
│ │ └── terragrunt.hcl
│ └── region.hcl
├── globals.hcl
├── prod
│ ├── account.hcl
│ └── prod
│ ├── env.hcl
│ ├── eu-central-1
│ │ ├── account-service
│ │ │ └── terragrunt.hcl
│ │ ├── device-service
│ │ │ └── terragrunt.hcl
│ │ ├── graph-service
│ │ │ └── terragrunt.hcl
│ │ ├── idp-service
│ │ │ └── terragrunt.hcl
│ │ ├── profile-service
│ │ │ └── terragrunt.hcl
│ │ ├── region.hcl
│ │ └── resource-service
│ │ └── terragrunt.hcl
│ ├── eu-west-1
│ │ ├── account-service
│ │ │ └── terragrunt.hcl
│ │ ├── buckets
│ │ │ ├── main.tf
│ │ │ └── terragrunt.hcl
│ │ ├── compliance-service
│ │ │ └── terragrunt.hcl
│ │ ├── device-service
│ │ │ └── terragrunt.hcl
│ │ ├── graph-service
│ │ │ └── terragrunt.hcl
│ │ ├── idp-service
│ │ │ └── terragrunt.hcl
│ │ ├── profile-service
│ │ │ └── terragrunt.hcl
│ │ ├── region.hcl
│ │ └── resource-service
│ │ └── terragrunt.hcl
│ ├── us-east-1
│ │ ├── account-service
│ │ │ └── terragrunt.hcl
│ │ ├── buckets
│ │ │ ├── main.tf
│ │ │ ├── terragrunt.hcl
│ │ │ └── tfplan
│ │ ├── compliance-service
│ │ │ └── terragrunt.hcl
│ │ ├── device-service
│ │ │ └── terragrunt.hcl
│ │ ├── graph-service
│ │ │ └── terragrunt.hcl
│ │ ├── idp-service
│ │ │ └── terragrunt.hcl
│ │ ├── profile-service
│ │ │ └── terragrunt.hcl
│ │ ├── region.hcl
│ │ └── resource-service
│ │ └── terragrunt.hcl
│ └── us-west-2
│ ├── account-service
│ │ └── terragrunt.hcl
│ ├── device-service
│ │ └── terragrunt.hcl
│ ├── graph-service
│ │ └── terragrunt.hcl
│ ├── idp-service
│ │ └── terragrunt.hcl
│ ├── profile-service
│ │ └── terragrunt.hcl
│ ├── region.hcl
│ └── resource-service
│ └── terragrunt.hcl
├── terragrunt.hcl
└── test
├── account.hcl
├── dev
│ ├── account-service.hcl
│ ├── compliance-service.hcl
│ ├── device-service.hcl
│ ├── env.hcl
│ ├── eu-central-1
│ │ ├── account-service
│ │ │ └── terragrunt.hcl
│ │ ├── device-service
│ │ │ └── terragrunt.hcl
│ │ ├── graph-service
│ │ │ └── terragrunt.hcl
│ │ ├── idp-service
│ │ │ └── terragrunt.hcl
│ │ ├── profile-service
│ │ │ └── terragrunt.hcl
│ │ ├── region.hcl
│ │ └── resource-service
│ │ └── terragrunt.hcl
│ ├── eu-west-1
│ │ ├── account-service
│ │ │ └── terragrunt.hcl
│ │ ├── compliance-service
│ │ │ └── terragrunt.hcl
│ │ ├── device-service
│ │ │ └── terragrunt.hcl
│ │ ├── graph-service
│ │ │ └── terragrunt.hcl
│ │ ├── idp-service
│ │ │ └── terragrunt.hcl
│ │ ├── profile-service
│ │ │ └── terragrunt.hcl
│ │ ├── region.hcl
│ │ └── resource-service
│ │ └── terragrunt.hcl
│ ├── graph-service.hcl
│ ├── idp-service.hcl
│ ├── profile-service.hcl
│ ├── resource-service.hcl
│ ├── us-east-1
│ │ ├── account-service
│ │ │ └── terragrunt.hcl
│ │ ├── compliance-service
│ │ │ └── terragrunt.hcl
│ │ ├── device-service
│ │ │ └── terragrunt.hcl
│ │ ├── graph-service
│ │ │ └── terragrunt.hcl
│ │ ├── idp-service
│ │ │ └── terragrunt.hcl
│ │ ├── profile-service
│ │ │ └── terragrunt.hcl
│ │ ├── region.hcl
│ │ └── resource-service
│ │ └── terragrunt.hcl
│ └── us-west-2
│ ├── account-service
│ │ └── terragrunt.hcl
│ ├── device-service
│ │ └── terragrunt.hcl
│ ├── graph-service
│ │ └── terragrunt.hcl
│ ├── idp-service
│ │ └── terragrunt.hcl
│ ├── profile-service
│ │ └── terragrunt.hcl
│ ├── region.hcl
│ └── resource-service
│ └── terragrunt.hcl
└── qa
├── env.hcl
├── eu-central-1
│ ├── account-service
│ │ └── terragrunt.hcl
│ ├── device-service
│ │ └── terragrunt.hcl
│ ├── graph-service
│ │ └── terragrunt.hcl
│ ├── idp-service
│ │ └── terragrunt.hcl
│ ├── profile-service
│ │ └── terragrunt.hcl
│ ├── region.hcl
│ └── resource-service
│ └── terragrunt.hcl
├── eu-west-1
│ ├── account-service
│ │ └── terragrunt.hcl
│ ├── compliance-service
│ │ └── terragrunt.hcl
│ ├── device-service
│ │ └── terragrunt.hcl
│ ├── graph-service
│ │ └── terragrunt.hcl
│ ├── idp-service
│ │ └── terragrunt.hcl
│ ├── profile-service
│ │ └── terragrunt.hcl
│ ├── region.hcl
│ └── resource-service
│ └── terragrunt.hcl
├── us-east-1
│ ├── account-service
│ │ └── terragrunt.hcl
│ ├── compliance-service
│ │ └── terragrunt.hcl
│ ├── device-service
│ │ └── terragrunt.hcl
│ ├── graph-service
│ │ └── terragrunt.hcl
│ ├── idp-service
│ │ └── terragrunt.hcl
│ ├── profile-service
│ │ └── terragrunt.hcl
│ ├── region.hcl
│ └── resource-service
│ └── terragrunt.hcl
└── us-west-2
├── account-service
│ └── terragrunt.hcl
├── device-service
│ └── terragrunt.hcl
├── graph-service
│ └── terragrunt.hcl
├── idp-service
│ └── terragrunt.hcl
├── profile-service
│ └── terragrunt.hcl
├── region.hcl
└── resource-service
└── terragrunt.hcl
102 directories, 114 files
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Sharing locals between terragrunt.hcl’s still isn’t a thing in TG AFAIK. There are a few interesting PRs/ideas how to DRY up this somewhat
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account>env>region>thing
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I suppose with Atlantis involved, DRY code isn’t necessarily what you want given triggers off an individual file
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Have you come up with any nice ways to layout your TG code while mainting Atlantis triggering on scoped events? convention over configuration?
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I believe you can share locals through read_terragrunt_config
, unless I’m misunderstanding what you’re trying to share. And yep, we like lots and lots of small files because our Atlantis config generation is automated.
Here’s a directory tree (with some DNS and other duplicated things removed) from one of our projects:
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infra
├── README.md
├── admin
│ ├── common.block
│ ├── datadog
│ │ ├── env-dev
│ │ │ ├── secrets
│ │ │ │ └── terragrunt.hcl
│ │ │ └── terragrunt.hcl
│ │ └── provider.hcl
│ ├── organizations
│ │ ├── atlantis
│ │ │ └── terragrunt.hcl
│ │ ├── commons
│ │ │ └── terragrunt.hcl
│ │ ├── identity
│ │ │ └── terragrunt.hcl
│ │ ├── provider.block
│ │ ├── sandbox
│ │ │ └── terragrunt.hcl
│ │ ├── staging
│ │ │ └── terragrunt.hcl
│ │ ├── testing
│ │ │ └── terragrunt.hcl
│ │ └── transcend
│ │ ├── provider.block
│ │ └── terragrunt.hcl
│ ├── people.json
│ ├── policies
│ │ ├── admin.tf
│ │ ├── admin_no_user_iam.tf
│ │ ├── ci_policy.tf
│ │ └── terragrunt.hcl
│ ├── roles
│ │ ├── atlantis_org
│ │ │ ├── admin
│ │ │ │ └── terragrunt.hcl
│ │ │ └── atlantis
│ │ │ └── terragrunt.hcl
│ │ ├── commons_org
│ │ │ ├── atlantis
│ │ │ │ └── terragrunt.hcl
│ │ │ └── ecr_role
│ │ │ └── terragrunt.hcl
│ │ ├── identity_org
│ │ │ ├── access_admin_role
│ │ │ │ └── terragrunt.hcl
│ │ │ └── atlantis
│ │ │ └── terragrunt.hcl
│ │ ├── role_provider.block
│ │ ├── sandbox_org
│ │ │ ├── admin
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── atlantis
│ │ │ │ └── terragrunt.hcl
│ │ │ └── ci
│ │ │ └── terragrunt.hcl
│ │ ├── staging_org
│ │ │ ├── admin
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── atlantis
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── ci
│ │ │ │ └── terragrunt.hcl
│ │ │ └── integrations_admin
│ │ │ └── terragrunt.hcl
│ │ ├── testing_org
│ │ │ ├── admin
│ │ │ │ └── terragrunt.hcl
│ │ │ └── atlantis
│ │ │ └── terragrunt.hcl
│ │ └── transcend_org
│ │ ├── admin
│ │ │ └── terragrunt.hcl
│ │ ├── admin_no_iam
│ │ │ └── terragrunt.hcl
│ │ ├── atlantis
│ │ │ └── terragrunt.hcl
│ │ ├── ci
│ │ │ └── terragrunt.hcl
│ │ ├── integrations_admin
│ │ │ └── terragrunt.hcl
│ │ └── role_provider.block
│ ├── terragrunt-config-admin.hcl
│ └── users
│ ├── datadog
│ └── identity_org
│ ├── access_key_management
│ │ └── terragrunt.hcl
│ ├── not_robots
│ │ └── terragrunt.hcl
│ └── robots
│ └── terragrunt.hcl
├── admin-dashboard
│ └── env-dev
│ └── terragrunt.hcl
├── atlantis
│ ├── ami
│ │ ├── README.md
│ │ ├── main.pkr.hcl
│ │ ├── terragroan.js
│ │ └── user_whitelist.js
│ ├── instance
│ │ └── terragrunt.hcl
│ └── secrets
│ └── terragrunt.hcl
├── backend
│ ├── README.md
│ ├── ecr
│ │ └── terragrunt.hcl
│ ├── env-dev
│ │ ├── alb
│ │ │ └── terragrunt.hcl
│ │ ├── buckets
│ │ │ └── terragrunt.hcl
│ │ ├── database
│ │ │ ├── primary
│ │ │ │ └── terragrunt.hcl
│ │ │ └── recovery
│ │ │ ├── kms_lookup
│ │ │ │ └── terragrunt.hcl
│ │ │ └── terragrunt.hcl
│ │ ├── ecs
│ │ │ ├── cluster
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── common.hcl
│ │ │ ├── container
│ │ │ │ ├── secrets
│ │ │ │ │ └── terragrunt.hcl
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── daemon_container
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── daemon_service
│ │ │ │ └── terragrunt.hcl
│ │ │ ├── service
│ │ │ │ └── terragrunt.hcl
│ │ │ └── task_permissions
│ │ │ └── terragrunt.hcl
│ │ ├── security_groups
│ │ │ ├── alb
│ │ │ │ └── terragrunt.hcl
│ │ │ └── rds
│ │ │ ├── primary
│ │ │ │ └── terragrunt.hcl
│ │ │ └── recovery
│ │ │ └── terragrunt.hcl
│ │ ├── ses_forwarding
│ │ │ └── terragrunt.hcl
│ │ ├── ssm_bastion
│ │ │ └── terragrunt.hcl
│ │ └── vpc
│ │ ├── main
│ │ │ └── terragrunt.hcl
│ │ └── recovery
│ │ └── terragrunt.hcl
│ └── env-local
│ ├── comment_attachments_bucket
│ │ └── terragrunt.hcl
│ ├── communication_emails_bucket
│ │ └── terragrunt.hcl
│ ├── company_uploads_bucket
│ │ └── terragrunt.hcl
│ ├── dsr_assembly_bucket
│ │ └── terragrunt.hcl
│ └── ses_forwarding
│ └── terragrunt.hcl
├── cdn_transcend_io
│ └── env-dev
│ └── terragrunt.hcl
├── codelabs
│ ├── bower_deps_bucket
│ │ └── terragrunt.hcl
│ ├── env-dev
│ │ └── terragrunt.hcl
│ └── homepage_images
│ └── terragrunt.hcl
├── cognito
│ ├── README.md
│ └── user_group
│ └── env-dev
│ ├── secrets
│ │ └── terragrunt.hcl
│ └── terragrunt.hcl
├── common.tf
├── commons
│ └── s3_state
│ ├── main.tf
│ ├── terragrunt.hcl
│ └── vars.tf
├── constants
│ ├── README.md
│ ├── atlantis_org_id.tf
│ ├── commons_org_id.tf
│ ├── identity_org_id.tf
│ ├── prod_admin_no_iam_role_arn.tf
│ ├── prod_admin_role_arn.tf
│ ├── sandbox_admin_role_arn.tf
│ ├── sandbox_org_id.tf
│ ├── staging_admin_role_arn.tf
│ ├── staging_org_id.tf
│ ├── terragrunt.hcl
│ ├── testing_org_id.tf
│ └── transcend_org_id.tf
├── datadog
│ └── agent_container
│ └── env-dev
│ ├── secrets
│ │ └── terragrunt.hcl
│ └── terragrunt.hcl
├── externally_available_ecr
│ ├── ci-base
│ │ ├── Dockerfile
│ │ └── terragrunt.hcl
│ ├── ci-base-docker
│ │ ├── Dockerfile
│ │ └── terragrunt.hcl
│ ├── ci-base-go
│ │ ├── Dockerfile
│ │ └── terragrunt.hcl
│ ├── ci-base-pre-commit
│ │ ├── Dockerfile
│ │ └── terragrunt.hcl
│ ├── ci-base-puppeteer
│ │ ├── Dockerfile
│ │ └── terragrunt.hcl
│ └── sombra
│ └── terragrunt.hcl
├── firelens
│ └── container_definition
│ └── terragrunt.hcl
├── get_dot_env.sh
├── guardduty
│ ├── sandbox_org
│ │ ├── california
│ │ │ └── terragrunt.hcl
│ │ ├── frankfurt
│ │ │ └── terragrunt.hcl
│ │ ├── ireland
│ │ │ └── terragrunt.hcl
│ │ ├── ohio
│ │ │ └── terragrunt.hcl
│ │ └── virginia
│ │ └── terragrunt.hcl
│ ├── staging_org
│ │ ├── california
│ │ │ └── terragrunt.hcl
│ │ ├── frankfurt
│ │ │ └── terragrunt.hcl
│ │ ├── ireland
│ │ │ └── terragrunt.hcl
│ │ ├── ohio
│ │ │ └── terragrunt.hcl
│ │ └── virginia
│ │ └── terragrunt.hcl
│ └── transcend_org
│ ├── california
│ │ └── terragrunt.hcl
│ ├── frankfurt
│ │ └── terragrunt.hcl
│ ├── ireland
│ │ └── terragrunt.hcl
│ ├── ohio
│ │ └── terragrunt.hcl
│ └── virginia
│ └── terragrunt.hcl
├── homebrew
│ └── README.md
├── homepage
│ └── www_redirect
│ └── terragrunt.hcl
├── lambda_at_edge
│ └── env-dev
│ ├── 404_redirect
│ │ └── terragrunt.hcl
│ ├── cognito_auth
│ │ └── terragrunt.hcl
│ └── version
│ └── terragrunt.hcl
├── log_buckets
│ ├── commons
│ │ └── ireland
│ │ └── terragrunt.hcl
│ └── env-dev
│ ├── ireland
│ │ └── terragrunt.hcl
│ └── virginia
│ └── terragrunt.hcl
├── misc-assets-transcend
│ └── terragrunt.hcl
├── package.json
├── privacy-center
│ └── env-dev
│ └── terragrunt.hcl
├── spa-static-server
│ └── terragrunt.hcl
├── terragrunt-config-atlantis.hcl
├── terragrunt-config-commons.hcl
├── terragrunt-config-dev.hcl
├── terragrunt-config-local.hcl
├── terragrunt-config-prod.hcl
├── terragrunt-config-staging.hcl
├── terragrunt-config-testing.hcl
└── vault
├── README.md
├── ami
│ ├── README.md
│ └── main.pkr.hcl
├── env-dev
│ ├── cluster
│ │ ├── secrets
│ │ │ └── terragrunt.hcl
│ │ └── terragrunt.hcl
│ └── settings
│ ├── audit
│ │ └── terragrunt.hcl
│ ├── auth_backends
│ │ └── aws
│ │ └── terragrunt.hcl
│ ├── mounts
│ │ └── kv
│ │ └── terragrunt.hcl
│ └── roles
│ ├── atlantis_role
│ │ └── terragrunt.hcl
│ └── developer_role
│ └── terragrunt.hcl
├── provider.block
├── signRequest.js
├── vault-config-dev.block
├── vault-config-prod.block
└── vault-config-staging.block
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Those are just directories with terragrunt files, so it doesn’t include any of our terraform (though we mostly use open source modules).
I also removed all the directories for staging/prod, as they are almost always the exact same as our env-dev directories. I’m not sure this is the best possible directory setup, but we haven’t had any troubles with it really.
At the very top level of this structure, we have files named “terragrunt-config-dev”, “terragrunt-config-staging”, etc. that set up remote state, common inputs, tags, AWS infro, etc.
We use the *.block
files as common code (like providers) to generate and insert into our other terragrunt modules
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We don’t use as many regions as it looks like you do yet, but we often have duplication across accounts/envs, and for those we do essentially duplicate the terragrunt config and let Atlantis take care of it
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e.g. to keep all the services using the same source remote release in lockstep across regions (so you only have to bump versions in one place) in the env.yaml for a given environment there is a place holder for each service version, but then bumping anything in there triggers all Atlantis projects to plan
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Not sure if that makes sense
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OK, so you have a shit ton of dirs and individual files to toggle too
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(not just me then)
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So you have thing>environment>region, interesting
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Yep, I love my small files. All the modules have really small blast radius in case anything goes wrong, or if I ever need to refactor/migrate resources to different terraform state
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Aye, nice
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For that particular project, here is the cloc
results:
cloc –vcs git .
cloc --vcs git .
533 text files.
510 unique files.
Complex regular subexpression recursion limit (32766) exceeded at /usr/local/Cellar/cloc/1.84/libexec/bin/cloc line 9879.
Complex regular subexpression recursion limit (32766) exceeded at /usr/local/Cellar/cloc/1.84/libexec/bin/cloc line 9879.
38 files ignored.
github.com/AlDanial/cloc v 1.84 T=0.44 s (1133.1 files/s, 48260.4 lines/s)
--------------------------------------------------------------------------------
Language files blank comment code
--------------------------------------------------------------------------------
HCL 451 3267 2393 13403
JavaScript 18 130 365 627
Markdown 9 134 0 222
JSON 7 0 0 191
Dockerfile 5 33 36 128
Bourne Again Shell 2 28 16 90
Bourne Shell 3 5 6 8
--------------------------------------------------------------------------------
SUM: 495 3597 2816 14669
--------------------------------------------------------------------------------
So while we have tons of HCL, the files on average are <30 lines of actual code
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I’m waiting for some PRs to drop but I think about a DRY refactor
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Yeah same, but still a few :p
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I want something like Hiera for Terraform
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Hey :wave: - Terragrunt v0.23.18 brought a nice new function: sops_decrypt_file
it allows you to decrypt either a JSON or YAML file that has been created with Mozilla’s sops
and use it as inputs to Terraform. Looks like a reasonable solution for those initial an innoying static keys and passwords that you’d otherwise have to manually create somewhere. https://terragrunt.gruntwork.io/docs/reference/built-in-functions/#sops_decrypt_file
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Terragrunt 2 layer approach isn’t ideal
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Have you played around with pulumi at all? You could probably reduce a lot of boilerplate with the higher level language constructs
2020-05-09
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Yeah, not keen. I want a DSL, not a full fledged language and it still uses the TF providers under the covers
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2020-05-11
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read_terragrunt_config
doesn’t let you share locals between files, you can do stuff with inputs….but not locals…
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You can use locals in inputs, but they aren’t quite the same
2020-05-17
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Hey :wave: - Terragrunt v0.23.18 brought a nice new function: sops_decrypt_file
it allows you to decrypt either a JSON or YAML file that has been created with Mozilla’s sops
and use it as inputs to Terraform. Looks like a reasonable solution for those initial an innoying static keys and passwords that you’d otherwise have to manually create somewhere. https://terragrunt.gruntwork.io/docs/reference/built-in-functions/#sops_decrypt_file
Terragrunt allows you to use built-in functions anywhere in terragrunt.hcl
, just like Terraform.
2020-05-18
2020-05-20
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Checkout terraform version manager written by me, supports pip, docker and homebrew !!
Its already becoming popular with 40 .
Terraform & Terragrunt Version Manager. Contribute to aaratn/terraenv development by creating an account on GitHub.
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related, i had been using tfenv, tgenv, helmenv, pyenv, and rvm until i recently learned of https://github.com/asdf-vm/asdf which also has support for many more things.
Extendable version manager with support for Ruby, Node.js, Elixir, Erlang & more - asdf-vm/asdf
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@Joey So this supports brew and raw git installation, its hard to ensure consistency
which is the case with tfenv and tgenv too and thats the reason I chose to write this in python and produce binaries which are available in form of brew, pip and docker images
Extendable version manager with support for Ruby, Node.js, Elixir, Erlang & more - asdf-vm/asdf
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lol
2020-05-21
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Hello! Does anyone here have any clever ways of actually managing the remote state infra thats created by terragrunt? (s3/dynamo). How does one remove/delete it in a sane manner
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Don’t know how much this will go towards alleviating your problem/request, but we’re managing terraform state buckets with terraform.
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Terraform module that provision an S3 bucket to store the terraform.tfstate
file and a DynamoDB table to lock the state file to prevent concurrent modifications and state corruption. - cloudposse…
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See PR#46 which is a clever way of doing this. Haven’t yet fully reviewed it…
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Interesting topic… I think it sort of lives forever and requires manual cleanup. I do believe there is a generate
command that can help you generate the code to create the state resources: https://terragrunt.gruntwork.io/docs/features/keep-your-remote-state-configuration-dry/#using-the-generate-property-to-generate-terraform-code-for-managing-remote-state - not sure how useful that would be. You’d then have local state for those resources.
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Hmm… that doesn’t create the actual bucket or table though. Maybe there should be a PR for a destroy command that cleans up those resources.
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Terragrunt is a really nice wrapper to automate the creation of S3 bucket and DynamoDB table. I'm actually using terragrunt to spawn demo enviroment for different development teams. So each tea…
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What is it you want to achieve? I’m leaning towards it being uncommon that you’d actually want to remove the state bucket / dynamodb lock table.
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we have preview environments that use terragrunt to spin up some infra. Once they are torn down it would be nice to have some way to clean up the state resources as well
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That’s what I thought might be the answer - I think you could simply use the aws cli and the parameters from the terragrunt.hcl files or something?
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and thats what I thought might be the easiest answer as well
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just thought there might be something more nicer out there, guess not
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If you could create your environments in their own account, you could nuke everything using something like: https://github.com/gruntwork-io/cloud-nuke
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There are hooks in Terragrunt, so you could programmatically clean up the bucket and table in an after hook on destroy-all or something? https://terragrunt.gruntwork.io/docs/features/before-and-after-hooks/
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I think the problem is that you could destroy the bucket on an infrastructure that contains many states and end up with a lot of left over infrastructure to clean up.
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If you were running this alongside other important environments you’d have a fun task on your hands.
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Personally, I wrap my Terragrunt commands in rake / ruby so I can be a bit more flexible and add extra validations to running things.
2020-05-22
2020-05-28
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Is possible to define “projects” in terragrunt.hcl ? Like project: foo with path: a/b/c and then if is possible to run terragrunt apply –project foo
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Not that I’m aware of @muhaha but that does sound interesting… I’ve wrapped calling terragrunt in a rake task so that I can do something like rake tg:apply[<account>/<module>]
or rake tg:apply[<account>]
for an apply-all. Our directory structure is rather deep to allow for expansion into multiple regions and we have multiple accounts per environment which presents interesting challenges. I think the CloudPosse team would be open to discussing the feature and possibly accept a PR?
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here is more info https://sweetops.slack.com/archives/CQCDCLA1M/p1590742750321200 , but … I just found https://mbtproject.github.io/mbt/ Now I at least know what I am looking for … “Monorepo build tool language agnostic”
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btw, terragrunt is by cloudposse?
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Or is it Gruntworks?? I forget
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did not find any community forum/slack channel thoi
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@Tim Birkett https://github.com/gruntwork-io/terragrunt/issues/1206 I created issue for this
Hello, Would be great to have something for handling monorepo use cases ( especially in CI ): Folder structure: azure(dir) westeurope project1 main.tf terragrunt.hcl project2 main.tf terragrunt.hcl…
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not too sure i understand your definition of project, but have you seen --terragrunt-working-dir
?
https://terragrunt.gruntwork.io/docs/reference/cli-options/#terragrunt-working-dir
Terragrunt forwards all arguments and options to Terraform. Learn more about CLI options in Terragrunt.
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or the *-all
commands?
https://terragrunt.gruntwork.io/docs/features/execute-terraform-commands-on-multiple-modules-at-once/
Learn how to avoid tedious tasks of running commands on each module separately.
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@loren you should be able to define projects and paths in yaml, toml, json
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Atlantis: Terraform Pull Request Automation
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i don’t understand the “should”?
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then triggering terraform apply -p PROJECT1
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in my proposal
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i’m just pointing you towards the features that terragrunt supports today that seem to get you closer to your goal, you can use them however you like
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terragrunt does handle git diff ?
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how terragrunt will get info about what project has been changed?
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i dont event need --terragrunt-working-dir
flag, i can use cd $working_dir
in shell
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That would be your CI tools job really. To work out from changed files whether it should run something.
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terragrunt has no integration with git or any source control system
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of course it can be inotify
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point is that terragrunt is not ready for larger monorepos and CI
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i have a setup not unlike your folder structure, and works fine for me ¯_(ツ)_/¯
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i just use a small custom utility to control what modules i want it to apply. terragrunt doesn’t care about all that
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how are you handling situation if someone will create PR
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then CI mechanism must determine what project is changed
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yes, my utility is integrated with git
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to trigger terragrunt on those project/module
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is it avaialbe as opensource? i am interested how are you doingit
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That is not difficult, most CI utilities have that functionality.
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nope
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oh sure
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@Tim Birkett what utilities? there is no one
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but the base of the logic is this function:
def _get_changed_dirs(include, commit_range):
changed_files = utils.check_output(
['git', 'diff', '--name-only', commit_range],
stdout_callback=None
).decode('utf-8').split()
changed_dirs = {os.path.dirname(f) for f in changed_files}
return set(itertools.chain.from_iterable([
wcmatch.glob.globfilter(
changed_dirs, item, flags=wcmatch.glob.EXTGLOB)
for item in include
]))
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you have to depend on raw git command
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yes, git libraries are pretty horrible in general
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i am using same mechanism, i have defined projects in json with name and path, and if diff is from that paths => run terragrunt with that path
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What is wrong with that solution?
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atlantis handle it very well, so why not to use terragrunt for it
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if its not git based, it can still calculate sha
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I thought Atlantis did it based on the info in the webhook it receives. You can run Terragrunt in Atlantis and configure Atlantis to trigger terragrunt in the correct “project” can’t you?
2020-05-29
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Hey all, I’m using the generate
block to create a backend for me, however I notice the tags dont get passed to it.
remote_state {
backend = "s3"
generate = {
path = "backend.tf"
if_exists = "overwrite"
}
config = {
bucket = format("%s-state-%s", local.role_name, local.aws_region)
key = "terraform.tfstate"
region = local.aws_region
encrypt = true
dynamodb_table = format("%s-locks", local.role_name)
s3_bucket_tags = local.tags
dynamodb_table_tags = local.tags
skip_bucket_accesslogging = true
}
}
any way I can pass the tags?