Terraform functions

https://www.terraform.io/docs/language/functions/index.html

Terraform predefined functions, Terraform do not support user defined functions.

• Numeric functions
• String functions
• Collection functions
  • index
  • keys
  • concat
  • slice
  • list
  • lookup
  • map
  • zipmap
• Encoding functions
• Filesystem functions
  • file
• Date and time functions
• Hash and crypto functions
• IP network functions
• Type conversion functions

• templatefile https://www.terraform.io/docs/language/functions/templatefile.html
• coalescehttps://www.terraform.io/docs/language/functions/coalesce.html
• tolist
• toset
• tostring
• tomap

• join

• output
• sum
• lenght

• chomp

Related

• Terraform meta argument: count
• Terraform meta argument: depends on
• Terraform collection functions
• Local values

See also

• Terraform functions, Terraform collection functions: tolist, toset, length, sum, file, join, depends_on, zipmap, replace, lookup, read files, concat, merge, templatefile, for_each, format, element, slice, try, filebase64, upper, filemd5, coalesce
• Terraform, OpenTofu, Installation, Terraform AWS, Terraform GCP, Terraform commands, Terraform Cloud, Terraform Enterprise (TFE), HCL, HIL, meta-arguments, providers, modules, resource, provisioners, data sources, backends: remote backends, examples, configuration files, state files, variables, types, Terraform Registry, conditionals: depends_on, functions, Blocks, dynamic blocks, errors, Terragrunt, Terraformer, Terratest, Terraform certifications, Terraform map type, Terraform Associate, Terraform: list type, TF_VAR_, TF_LOG, Terraform provider versioning, Terraform Style Conventions, Required version, Terraform plugin, Terraform Named Values, tags, Changelog, tfsec, tflint, Operators, Expressions: for, splat, Debugging, Namespaces, Terraform Landing Zones, CDKTF, Atmos