terraform/CHANGELOG.md

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).
• command/show: With no arguments, it will show the default state. [GH-349]
• 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/aws: Non-destructive update of desired_capacity for autoscale groups.
• providers/aws: Add main_route_table_id attribute to VPCs. [GH-193]
• 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.
• core: Strings in the configuration can escape double-quotes with the standard \" syntax.
• core: Error parsing CLI config will show properly. [GH-288]
• core: More than one Ctrl-C will exit immediately.
• 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]
• providers/aws: Report errors properly if RDS fails to delete. [GH-310]
• providers/aws: Wait for launch configuration to exist after creation (AWS eventual consistency) [GH-302]

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