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terraform/CHANGELOG.md

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0.3.0 (unreleased)

FEATURES:

  • Modules: Configuration can now be modularized. Modules can live on GitHub, BitBucket, Git/Hg repos, HTTP URLs, and file paths. Terraform automatically downloads/updates modules for you on request.
  • New Command: init. This command initializes a Terraform configuration from an existing Terraform module (also new in 0.3).
  • New Command: destroy. This command destroys infrastructure created with apply.
  • Terraform will ask for user input to fill in required variables and provider configurations if they aren't set.
  • terraform apply MODULE can be used as a shorthand to quickly build infrastructure from a module.
  • The state file format is now JSON rather than binary. This allows for easier machine and human read/write. Old binary state files will be automatically upgraded.
  • You can now specify create_before_destroy as an option for replacement so that new resources are created before the old ones are destroyed.
  • The count metaparameter can now contain interpolations (such as variables).
  • The current index for a resource with a count set can be interpolated using ${count.index}.
  • Various paths can be interpolated with the path.X variables. For example, the path to the current module can be interpolated using ${path.module}.

IMPROVEMENTS:

  • config: Trailing commas are now allowed for the final elements of lists.
  • core: Plugins are loaded from ~/.terraform.d/plugins (Unix) or %USERDATA%/terraform.d/plugins (Windows).
  • helper/schema: Can now have default values. [GH-245]
  • providers/aws: Tag support for most resources.
  • providers/aws: New resource db_subnet_group. [GH-295]
  • providers/aws: Add map_public_ip_on_launch for subnets. [GH-285]
  • providers/aws: Add iam_instance_profile for instances. [GH-319]
  • providers/aws: Add internal option for ELBs. [GH-303]
  • providers/aws: Add ssl_certificate_id for ELB listeners. [GH-350]
  • providers/aws: Add self option for security groups for ingress rules with self as source. [GH-303]
  • providers/aws: Add iam_instance_profile option to aws_launch_configuration. [GH-371]
  • providers/google: Support target_tags for firewalls. [GH-324]
  • providers/google: google_compute_instance supports can_ip_forward [GH-375]
  • providers/google: google_compute_disk supports type to support disks such as SSDs. [GH-351]
  • provisioners/local-exec: Output from command is shown in CLI output. [GH-311]
  • provisioners/remote-exec: Output from command is shown in CLI output. [GH-311]

BUG FIXES:

  • core: Providers are validated even without a provider block. [GH-284]
  • core: In the case of error, walk all non-dependent trees.
  • core: Plugin loading from CWD works properly.
  • core: Fix many edge cases surrounding the count meta-parameter.
  • providers/aws: autoscaling_group can be launched into a vpc [GH-259]
  • providers/aws: not an error when RDS instance is deleted manually. [GH-307]
  • providers/aws: Retry deleting subnet for some time while AWS eventually destroys dependencies. [GH-357]
  • providers/aws: More robust destroy for route53 records. [GH-342]
  • providers/aws: ELB generates much more correct plans without extranneous data.
  • providers/aws: ELB works properly with dynamically changing count of instances.
  • providers/aws: Terraform can handle ELBs deleted manually. [GH-304]

0.2.2 (September 9, 2014)

IMPROVEMENTS:

  • providers/amazon: Add ebs_optimized flag. [GH-260]
  • providers/digitalocean: Handle 404 on delete
  • providers/digitalocean: Add user_data argument for creating droplets
  • providers/google: Disks can be marked auto_delete. [GH-254]

BUG FIXES:

  • core: Fix certain syntax of configuration that could cause hang. [GH-261]
  • core: -no-color flag properly disables color. [GH-250]
  • core: "~" is expanded in -var-file flags. [GH-273]
  • core: Errors with tfvars are shown in console. [GH-269]
  • core: Interpolation function calls with more than two args parse. [GH-282]
  • providers/aws: Refreshing EIP from pre-0.2 state file won't error. [GH-258]
  • providers/aws: Creating EIP without an instance/network won't fail.
  • providers/aws: Refreshing EIP manually deleted works.
  • providers/aws: Retry EIP delete to allow AWS eventual consistency to detect it isn't attached. [GH-276]
  • providers/digitalocean: Handle situations when resource was destroyed manually. [GH-279]
  • providers/digitalocean: Fix a couple scenarios where the diff was incorrect (and therefore the execution as well).
  • providers/google: Attaching a disk source (not an image) works properly. [GH-254]

0.2.1 (August 31, 2014)

IMPROVEMENTS:

  • core: Plugins are automatically discovered in the executable directory or pwd if named properly. [GH-190]
  • providers/mailgun: domain records are now saved to state

BUG FIXES:

  • core: Configuration parses when identifier and '=' have no space. [GH-243]
  • core: depends_on with count generates the proper graph. [GH-244]
  • core: Depending on a computed variable of a list type generates a plan without failure. i.e. ${type.name.foos.0.bar} where foos is computed. [GH-247]
  • providers/aws: Route53 destroys in parallel work properly. [GH-183]

0.2.0 (August 28, 2014)

BACKWARDS INCOMPATIBILITIES:

  • We've replaced the configuration language in use from a C library to a pure-Go reimplementation. In the process, we removed some features of the language since it was too flexible:
    • Semicolons are no longer valid at the end of lines
    • Keys cannot be double-quoted strings: "foo" = "bar" is no longer valid.
    • JSON style maps { "foo": "bar" } are no longer valid outside of JSON. Maps must be in the format of { foo = "bar" } (like other objects in the config)
  • Heroku apps now require (will not validate without) region and name due to an upstream API change. [GH-239]

FEATURES:

  • New Provider: google: Manage Google Compute instances, disks, firewalls, and more.
  • New Provider: mailgun: Manage mailgun domains.
  • New Function: concat: Concatenate multiple strings together. Example: concat(var.region, "-", var.channel).

IMPROVEMENTS:

  • core: "~/.terraformrc" (Unix) or "%APPDATA%/terraform.rc" (Windows) can be used to configure custom providers and provisioners. [GH-192]
  • providers/aws: EIPs now expose allocation_id and public_ip attributes.
  • providers/aws: Security group rules can be updated without a destroy/create.
  • providers/aws: You can enable and disable dns settings for VPCs. [GH-172]
  • providers/aws: Can specify a private IP address for aws_instance [GH-217]

BUG FIXES:

  • core: Variables are validated to not contain interpolations. [GH-180]
  • core: Key files for provisioning can now contain ~ and will be expanded to the user's home directory. [GH-179]
  • core: The file() function can load files in sub-directories. [GH-213]
  • core: Fix issue where some JSON structures didn't map properly into Terraform structures. [GH-177]
  • core: Resources with only file() calls will interpolate. [GH-159]
  • core: Variables work in block names. [GH-234]
  • core: Plugins are searched for in the same directory as the executable before the PATH. [GH-157]
  • command/apply: "tfvars" file no longer interferes with plan apply. [GH-153]
  • providers/aws: Fix issues around failing to read EIPs. [GH-122]
  • providers/aws: Autoscaling groups now register and export load balancers. [GH-207]
  • providers/aws: Ingress results are treated as a set, so order doesn't matter anymore. [GH-87]
  • providers/aws: Instance security groups treated as a set [GH-194]
  • providers/aws: Retry Route53 requests if operation failed because another operation is in progress [GH-183]
  • providers/aws: Route53 records with multiple record values work. [GH-221]
  • providers/aws: Changing AMI doesn't result in errors anymore. [GH-196]
  • providers/heroku: If you delete the config_vars block, config vars are properly nuked.
  • providers/heroku: Domains and drains are deleted before the app.
  • providers/heroku: Moved from the client library bgentry/heroku-go to cyberdelia/heroku-go [GH-239].
  • providers/heroku: Plans without a specific plan name for heroku_addon work. [GH-198]

PLUGIN CHANGES:

  • New Package: helper/schema. This introduces a high-level framework for easily writing new providers and resources. The Heroku provider has been converted to this as an example.

0.1.1 (August 5, 2014)

FEATURES:

  • providers/heroku: Now supports creating Heroku Drains [GH-97]

IMPROVEMENTS:

  • providers/aws: Launch configurations accept user data [GH-94]
  • providers/aws: Regions are now validated [GH-96]
  • providers/aws: ELB now supports health check configurations [GH-109]

BUG FIXES:

  • core: Default variable file "terraform.tfvars" is auto-loaded. [GH-59]
  • core: Multi-variables (foo.*.bar) work even when count = 1. [GH-115]
  • core: file() function can have string literal arg [GH-145]
  • providers/cloudflare: Include the proper bins so the cloudflare provider is compiled
  • providers/aws: Engine version for RDS now properly set [GH-118]
  • providers/aws: Security groups now depend on each other and
  • providers/aws: DB instances now wait for destroys, have proper dependencies and allow passing skip_final_snapshot
  • providers/aws: Add associate_public_ip_address as an attribute on the aws_instance resource [GH-85]
  • providers/aws: Fix cidr blocks being updated [GH-65, GH-85]
  • providers/aws: Description is now required for security groups
  • providers/digitalocean: Private IP addresses are now a separate attribute
  • provisioner/all: If an SSH key is given with a password, a better error message is shown. [GH-73]

0.1.0 (July 28, 2014)

  • Initial release