github.com/tarrant/terraform@v0.3.8-0.20150402012457-f68c9eee638e/CHANGELOG.md (about)

     1  ## 0.4.0 (unreleased)
     2  
     3  BACKWARDS INCOMPATIBILITIES:
     4  
     5    * Commands `terraform push` and `terraform pull` are now nested under
     6      the `remote` command: `terraform remote push` and `terraform remote pull`.
     7      The old `remote` functionality is now at `terraform remote config`. This
     8      consolidates all remote state management under one command.
     9    * Period-prefixed configuration files are now ignored. This might break
    10      existing Terraform configurations if you had period-prefixed files.
    11  
    12  FEATURES:
    13  
    14    * **New provider: `dme` (DNSMadeEasy)** [GH-855]
    15    * **New provider: `docker` (Docker)** - Manage container lifecycle
    16        using the standard Docker API. [GH-855]
    17    * **New provider: `openstack` (OpenStack)** - Interact with the many resources
    18        provided by OpenStack. [GH-924]
    19    * **New command: `taint`** - Manually mark a resource as tainted, causing
    20        a destroy and recreate on the next plan/apply.
    21    * **New resource: `aws_vpn_gateway`** [GH-1137]
    22    * **New resource: `aws_elastic_network_interfaces`** [GH-1149]
    23    * **Self-variables** can be used to reference the current resource's
    24        attributes within a provisioner. Ex. `${self.private_ip_address}` [GH-1033]
    25    * **Continuous state** saving during `terraform apply`. The state file is
    26        continuously updated as apply is running, meaning that the state is
    27        less likely to become corrupt in a catastrophic case: terraform panic
    28        or system killing Terraform.
    29    * **Math operations** in interpolations. You can now do things like
    30        `${count.index+1}`. [GH-1068]
    31    * **New AWS SDK:** Move to `aws-sdk-go` (hashicorp/aws-sdk-go),
    32        a fork of the offical `awslabs` repo. We forked for stability while
    33        `awslabs` refactored the library, and will move back to the officially
    34        supported version in the next release.
    35  
    36  IMPROVEMENTS:
    37  
    38    * **New config function: `format`** - Format a string using `sprintf`
    39        format. [GH-1096]
    40    * **New config function: `replace`** - Search and replace string values.
    41        Search can be a regular expression. See documentation for more
    42        info. [GH-1029]
    43    * **New config function: `split`** - Split a value based on a delimiter.
    44        This is useful for faking lists as parameters to modules.
    45    * **New resource: `digitalocean_ssh_key`** [GH-1074]
    46    * config: Expand `~` with homedir in `file()` paths [GH-1338]
    47    * core: The serial of the state is only updated if there is an actual
    48        change. This will lower the amount of state changing on things
    49        like refresh.
    50    * core: Autoload `terraform.tfvars.json` as well as `terraform.tfvars` [GH-1030]
    51    * core: `.tf` files that start with a period are now ignored. [GH-1227]
    52    * command/remote-config: After enabling remote state, a `pull` is
    53        automatically done initially.
    54    * providers/google: Add `size` option to disk blocks for instances. [GH-1284]
    55    * providers/aws: Improve support for tagging resources.
    56    * providers/aws: Add a short syntax for Route 53 Record names, e.g.
    57        `www` instead of `www.example.com`.
    58    * providers/aws: Improve dependency violation error handling, when deleting
    59      Internet Gateways or Auto Scaling groups [GH-1325].
    60    * provider/aws: Add non-destructive updates to AWS RDS. You can now upgrade 
    61        `egine_version`, `parameter_group_name`, and `multi_az` without forcing 
    62        a new database to be created.[GH-1341]
    63  
    64  BUG FIXES:
    65  
    66    * core: module outputs can be used as inputs to other modules [GH-822]
    67    * core: Self-referencing splat variables are no longer allowed in
    68        provisioners. [GH-795][GH-868]
    69    * core: Validate that `depends_on` doesn't contain interpolations. [GH-1015]
    70    * core: Module inputs can be non-strings. [GH-819]
    71    * core: Fix invalid plan that resulted in "diffs don't match" error when
    72        a computed attribute was used as part of a set parameter. [GH-1073]
    73    * core: Fix edge case where state containing both "resource" and
    74        "resource.0" would ignore the latter completely. [GH-1086]
    75    * core: Modules with a source of a relative file path moving up
    76        directories work properly, i.e. "../a" [GH-1232]
    77    * providers/aws: manually deleted VPC removes it from the state
    78    * providers/aws: `source_dest_check` regression fixed (now works). [GH-1020]
    79    * providers/aws: Longer wait times for DB instances.
    80    * providers/aws: Longer wait times for route53 records (30 mins). [GH-1164]
    81    * providers/aws: Fix support for TXT records in Route 53. [GH-1213]
    82    * providers/aws: Fix support for wildcard records in Route 53. [GH-1222]
    83    * providers/aws: Fix issue with ignoring the 'self' attribute of a
    84        Security Group rule. [GH-1223]
    85    * providers/aws: Fix issue with `sql_mode` in RDS parameter group always
    86        causing an update. [GH-1225]
    87    * providers/aws: Fix dependency violation with subnets and security groups
    88        [GH-1252]
    89    * providers/aws: Fix issue with refreshing `db_subnet_groups` causing an error
    90        instead of updating state [GH-1254]
    91    * providers/aws: Prevent empty string to be used as default
    92        `health_check_type` [GH-1052]
    93    * providers/aws: Add tags on AWS IG creation, not just on update [GH-1176]
    94    * providers/digitalocean: Waits until droplet is ready to be destroyed [GH-1057]
    95    * providers/digitalocean: More lenient about 404's while waiting [GH-1062]
    96    * providers/digitalocean: FQDN for domain records in CNAME, MX, NS, etc.
    97        Also fixes invalid updates in plans. [GH-863]
    98    * providers/google: Network data in state was not being stored. [GH-1095]
    99    * providers/heroku: Fix panic when config vars block was empty. [GH-1211]
   100  
   101  PLUGIN CHANGES:
   102  
   103    * New `helper/schema` fields for resources: `Deprecated` and `Removed` allow
   104        plugins to generate warning or error messages when a given attribute is used.
   105  
   106  ## 0.3.7 (February 19, 2015)
   107  
   108  IMPROVEMENTS:
   109  
   110    * **New resources: `google_compute_forwarding_rule`, `google_compute_http_health_check`,
   111        and `google_compute_target_pool`** - Together these provide network-level
   112        load balancing. [GH-588]
   113    * **New resource: `aws_main_route_table_association`** - Manage the main routing table
   114        of a VPC. [GH-918]
   115    * **New resource: `aws_vpc_peering_connection`** [GH-963]
   116    * core: Formalized the syntax of interpolations and documented it
   117        very heavily.
   118    * core: Strings in interpolations can now contain further interpolations,
   119        e.g.: `foo ${bar("${baz}")}`.
   120    * provider/aws: Internet gateway supports tags [GH-720]
   121    * provider/aws: Support the more standard environmental variable names
   122        for access key and secret keys. [GH-851]
   123    * provider/aws: The `aws_db_instance` resource no longer requires both
   124        `final_snapshot_identifier` and `skip_final_snapshot`; the presence or
   125        absence of the former now implies the latter. [GH-874]
   126    * provider/aws: Avoid unnecessary update of `aws_subnet` when
   127        `map_public_ip_on_launch` is not specified in config. [GH-898]
   128    * provider/aws: Add `apply_method` to `aws_db_parameter_group` [GH-897]
   129    * provider/aws: Add `storage_type` to `aws_db_instance` [GH-896]
   130    * provider/aws: ELB can update listeners without requiring new. [GH-721]
   131    * provider/aws: Security group support egress rules. [GH-856]
   132    * provider/aws: Route table supports VPC peering connection on route. [GH-963]
   133    * provider/aws: Add `root_block_device` to `aws_db_instance` [GH-998]
   134    * provider/google: Remove "client secrets file", as it's no longer necessary
   135        for API authentication [GH-884].
   136    * provider/google: Expose `self_link` on `google_compute_instance` [GH-906]
   137  
   138  BUG FIXES:
   139  
   140    * core: Fixing use of remote state with plan files. [GH-741]
   141    * core: Fix a panic case when certain invalid types were used in
   142        the configuration. [GH-691]
   143    * core: Escape characters `\"`, `\n`, and `\\` now work in interpolations.
   144    * core: Fix crash that could occur when there are exactly zero providers
   145        installed on a system. [GH-786]
   146    * core: JSON TF configurations can configure provisioners. [GH-807]
   147    * core: Sort `depends_on` in state to prevent unnecessary file changes. [GH-928]
   148    * core: State containing the zero value won't cause a diff with the
   149        lack of a value. [GH-952]
   150    * core: If a set type becomes empty, the state will be properly updated
   151        to remove it. [GH-952]
   152    * core: Bare "splat" variables are not allowed in provisioners. [GH-636]
   153    * core: Invalid configuration keys to sub-resources are now errors. [GH-740]
   154    * command/apply: Won't try to initialize modules in some cases when
   155        no arguments are given. [GH-780]
   156    * command/apply: Fix regression where user variables weren't asked [GH-736]
   157    * helper/hashcode: Update `hash.String()` to always return a positive index.
   158        Fixes issue where specific strings would convert to a negative index
   159        and be omitted when creating Route53 records. [GH-967]
   160    * provider/aws: Automatically suffix the Route53 zone name on record names. [GH-312]
   161    * provider/aws: Instance should ignore root EBS devices. [GH-877]
   162    * provider/aws: Fix `aws_db_instance` to not recreate each time. [GH-874]
   163    * provider/aws: ASG termination policies are synced with remote state. [GH-923]
   164    * provider/aws: ASG launch configuration setting can now be updated in-place. [GH-904]
   165    * provider/aws: No read error when subnet is manually deleted. [GH-889]
   166    * provider/aws: Tags with empty values (empty string) are properly
   167        managed. [GH-968]
   168    * provider/aws: Fix case where route table would delete its routes
   169        on an unrelated change. [GH-990]
   170    * provider/google: Fix bug preventing instances with metadata from being
   171        created [GH-884].
   172  
   173  PLUGIN CHANGES:
   174  
   175    * New `helper/schema` type: `TypeFloat` [GH-594]
   176    * New `helper/schema` field for resources: `Exists` must point to a function
   177        to check for the existence of a resource. This is used to properly
   178        handle the case where the resource was manually deleted. [GH-766]
   179    * There is a semantic change in `GetOk` where it will return `true` if
   180        there is any value in the diff that is _non-zero_. Before, it would
   181        return true only if there was a value in the diff.
   182  
   183  ## 0.3.6 (January 6, 2015)
   184  
   185  FEATURES:
   186  
   187    * **New provider: `cloudstack`**
   188  
   189  IMPROVEMENTS:
   190  
   191    * **New resource: `aws_key_pair`** - Import a public key into AWS. [GH-695]
   192    * **New resource: `heroku_cert`** - Manage Heroku app certs.
   193    * provider/aws: Support `eu-central-1`, `cn-north-1`, and GovCloud. [GH-525]
   194    * provider/aws: `route_table` can have tags. [GH-648]
   195    * provider/google: Support Ubuntu images. [GH-724]
   196    * provider/google: Support for service accounts. [GH-725]
   197  
   198  BUG FIXES:
   199  
   200    * core: temporary/hidden files that look like Terraform configurations
   201        are no longer loaded. [GH-548]
   202    * core: Set types in resources now result in deterministic states,
   203        resulting in cleaner plans. [GH-663]
   204    * core: fix issue where "diff was not the same" would come up with
   205        diffing lists. [GH-661]
   206    * core: fix crash where module inputs weren't strings, and add more
   207        validation around invalid types here. [GH-624]
   208    * core: fix error when using a computed module output as an input to
   209        another module. [GH-659]
   210    * core: map overrides in "terraform.tfvars" no longer result in a syntax
   211        error. [GH-647]
   212    * core: Colon character works in interpolation [GH-700]
   213    * provider/aws: Fix crash case when internet gateway is not attached
   214        to any VPC. [GH-664]
   215    * provider/aws: `vpc_id` is no longer required. [GH-667]
   216    * provider/aws: `availability_zones` on ELB will contain more than one
   217        AZ if it is set as such. [GH-682]
   218    * provider/aws: More fields are marked as "computed" properly, resulting
   219        in more accurate diffs for AWS instances. [GH-712]
   220    * provider/aws: Fix panic case by using the wrong type when setting
   221        volume size for AWS instances. [GH-712]
   222    * provider/aws: route table ignores routes with 'EnableVgwRoutePropagation'
   223        origin since those come from gateways. [GH-722]
   224    * provider/aws: Default network ACL ID and default security group ID
   225        support for `aws_vpc`. [GH-704]
   226    * provider/aws: Tags are not marked as computed. This introduces another
   227        issue with not detecting external tags, but this will be fixed in
   228        the future. [GH-730]
   229  
   230  ## 0.3.5 (December 9, 2014)
   231  
   232  FEATURES:
   233  
   234   * **Remote State**: State files can now be stored remotely via HTTP,
   235       Consul, or HashiCorp's Atlas.
   236   * **New Provider: `atlas`**: Retrieve artifacts for deployment from
   237       HashiCorp's Atlas service.
   238   * New `element()` function to index into arrays
   239  
   240  IMPROVEMENTS:
   241  
   242    * provider/aws: Support tenancy for aws\_instance
   243    * provider/aws: Support block devices for aws\_instance
   244    * provider/aws: Support virtual\_name on block device
   245    * provider/aws: Improve RDS reliability (more grace time)
   246    * provider/aws: Added aws\_db\_parameter\_group resource
   247    * provider/aws: Added tag support to aws\_subnet
   248    * provider/aws: Routes in RouteTable are optional
   249    * provider/aws: associate\_public\_ip\_address on aws\_launch\_configuration
   250    * provider/aws: Added aws\_network\_acl
   251    * provider/aws: Ingress rules in security groups are optional
   252    * provider/aws: Support termination policy for ASG
   253    * provider/digitalocean: Improved droplet size compatibility
   254  
   255  BUG FIXES:
   256  
   257    * core: Fixed issue causing double delete. [GH-555]
   258    * core: Fixed issue with create-before-destroy not being respected in
   259        some circumstances.
   260    * core: Fixing issue with count expansion with non-homogenous instance
   261        plans.
   262    * core: Fix issue with referencing resource variables from resources
   263        that don't exist yet within resources that do exist, or modules.
   264    * core: Fixing depedency handling for modules
   265    * core: Fixing output handling [GH-474]
   266    * core: Fixing count interpolation in modules
   267    * core: Fixing multi-var without module state
   268    * core: Fixing HCL variable declaration
   269    * core: Fixing resource interpolation for without state
   270    * core: Fixing handling of computed maps
   271    * command/init: Fixing recursion issue [GH-518]
   272    * command: Validate config before requesting input [GH-602]
   273    * build: Fixing GOPATHs with spaces
   274  
   275  MISC:
   276  
   277    * provider/aws: Upgraded to helper.Schema
   278    * provider/heroku: Upgraded to helper.Schema
   279    * provider/mailgun: Upgraded to helper.Schema
   280    * provider/dnsimple: Upgraded to helper.Schema
   281    * provider/cloudflare: Upgraded to helper.Schema
   282    * provider/digitalocean: Upgraded to helper.Schema
   283    * provider/google: Upgraded to helper.Schema
   284  
   285  ## 0.3.1 (October 21, 2014)
   286  
   287  IMPROVEMENTS:
   288  
   289    * providers/aws: Support tags for security groups.
   290    * providers/google: Add "external\_address" to network attributes [GH-454]
   291    * providers/google: External address is used as default connection host. [GH-454]
   292    * providers/heroku: Support `locked` and `personal` booleans on organization
   293        settings. [GH-406]
   294  
   295  BUG FIXES:
   296  
   297    * core: Remove panic case when applying with a plan that generates no
   298        new state. [GH-403]
   299    * core: Fix a hang that can occur with enough resources. [GH-410]
   300    * core: Config validation will not error if the field is being
   301        computed so the value is still unknown.
   302    * core: If a resource fails to create and has provisioners, it is
   303        marked as tainted. [GH-434]
   304    * core: Set types are validated to be sets. [GH-413]
   305    * core: String types are validated properly. [GH-460]
   306    * core: Fix crash case when destroying with tainted resources. [GH-412]
   307    * core: Don't execute provisioners in some cases on destroy.
   308    * core: Inherited provider configurations will be properly interpolated. [GH-418]
   309    * core: Refresh works properly if there are outputs that depend on resources
   310        that aren't yet created. [GH-483]
   311    * providers/aws: Refresh of launch configs and autoscale groups load
   312        the correct data and don't incorrectly recreate themselves. [GH-425]
   313    * providers/aws: Fix case where ELB would incorrectly plan to modify
   314        listeners (with the same data) in some cases.
   315    * providers/aws: Retry destroying internet gateway for some amount of time
   316        if there is a dependency violation since it is probably just eventual
   317        consistency (public facing resources being destroyed). [GH-447]
   318    * providers/aws: Retry deleting security groups for some amount of time
   319        if there is a dependency violation since it is probably just eventual
   320        consistency. [GH-436]
   321    * providers/aws: Retry deleting subnet for some amount of time if there is a
   322        dependency violation since probably asynchronous destroy events take
   323        place still. [GH-449]
   324    * providers/aws: Drain autoscale groups before deleting. [GH-435]
   325    * providers/aws: Fix crash case if launch config is manually deleted. [GH-421]
   326    * providers/aws: Disassociate EIP before destroying.
   327    * providers/aws: ELB treats subnets as a set.
   328    * providers/aws: Fix case where in a destroy/create tags weren't reapplied. [GH-464]
   329    * providers/aws: Fix incorrect/erroneous apply cases around security group
   330        rules. [GH-457]
   331    * providers/consul: Fix regression where `key` param changed to `keys. [GH-475]
   332  
   333  ## 0.3.0 (October 14, 2014)
   334  
   335  FEATURES:
   336  
   337    * **Modules**: Configuration can now be modularized. Modules can live on
   338      GitHub, BitBucket, Git/Hg repos, HTTP URLs, and file paths. Terraform
   339      automatically downloads/updates modules for you on request.
   340    * **New Command: `init`**. This command initializes a Terraform configuration
   341      from an existing Terraform module (also new in 0.3).
   342    * **New Command: `destroy`**. This command destroys infrastructure
   343      created with `apply`.
   344    * Terraform will ask for user input to fill in required variables and
   345      provider configurations if they aren't set.
   346    * `terraform apply MODULE` can be used as a shorthand to quickly build
   347      infrastructure from a module.
   348    * The state file format is now JSON rather than binary. This allows for
   349      easier machine and human read/write. Old binary state files will be
   350      automatically upgraded.
   351    * You can now specify `create_before_destroy` as an option for replacement
   352      so that new resources are created before the old ones are destroyed.
   353    * The `count` metaparameter can now contain interpolations (such as
   354      variables).
   355    * The current index for a resource with a `count` set can be interpolated
   356      using `${count.index}`.
   357    * Various paths can be interpolated with the `path.X` variables. For example,
   358      the path to the current module can be interpolated using `${path.module}`.
   359  
   360  IMPROVEMENTS:
   361  
   362    * config: Trailing commas are now allowed for the final elements of lists.
   363    * core: Plugins are loaded from `~/.terraform.d/plugins` (Unix) or
   364      `%USERDATA%/terraform.d/plugins` (Windows).
   365    * command/show: With no arguments, it will show the default state. [GH-349]
   366    * helper/schema: Can now have default values. [GH-245]
   367    * providers/aws: Tag support for most resources.
   368    * providers/aws: New resource `db_subnet_group`. [GH-295]
   369    * providers/aws: Add `map_public_ip_on_launch` for subnets. [GH-285]
   370    * providers/aws: Add `iam_instance_profile` for instances. [GH-319]
   371    * providers/aws: Add `internal` option for ELBs. [GH-303]
   372    * providers/aws: Add `ssl_certificate_id` for ELB listeners. [GH-350]
   373    * providers/aws: Add `self` option for security groups for ingress
   374        rules with self as source. [GH-303]
   375    * providers/aws: Add `iam_instance_profile` option to
   376        `aws_launch_configuration`. [GH-371]
   377    * providers/aws: Non-destructive update of `desired_capacity` for
   378        autoscale groups.
   379    * providers/aws: Add `main_route_table_id` attribute to VPCs. [GH-193]
   380    * providers/consul: Support tokens. [GH-396]
   381    * providers/google: Support `target_tags` for firewalls. [GH-324]
   382    * providers/google: `google_compute_instance` supports `can_ip_forward` [GH-375]
   383    * providers/google: `google_compute_disk` supports `type` to support disks
   384        such as SSDs. [GH-351]
   385    * provisioners/local-exec: Output from command is shown in CLI output. [GH-311]
   386    * provisioners/remote-exec: Output from command is shown in CLI output. [GH-311]
   387  
   388  BUG FIXES:
   389  
   390    * core: Providers are validated even without a `provider` block. [GH-284]
   391    * core: In the case of error, walk all non-dependent trees.
   392    * core: Plugin loading from CWD works properly.
   393    * core: Fix many edge cases surrounding the `count` meta-parameter.
   394    * core: Strings in the configuration can escape double-quotes with the
   395        standard `\"` syntax.
   396    * core: Error parsing CLI config will show properly. [GH-288]
   397    * core: More than one Ctrl-C will exit immediately.
   398    * providers/aws: autoscaling_group can be launched into a vpc [GH-259]
   399    * providers/aws: not an error when RDS instance is deleted manually. [GH-307]
   400    * providers/aws: Retry deleting subnet for some time while AWS eventually
   401        destroys dependencies. [GH-357]
   402    * providers/aws: More robust destroy for route53 records. [GH-342]
   403    * providers/aws: ELB generates much more correct plans without extranneous
   404        data.
   405    * providers/aws: ELB works properly with dynamically changing
   406        count of instances.
   407    * providers/aws: Terraform can handle ELBs deleted manually. [GH-304]
   408    * providers/aws: Report errors properly if RDS fails to delete. [GH-310]
   409    * providers/aws: Wait for launch configuration to exist after creation
   410        (AWS eventual consistency) [GH-302]
   411  
   412  ## 0.2.2 (September 9, 2014)
   413  
   414  IMPROVEMENTS:
   415  
   416    * providers/amazon: Add `ebs_optimized` flag. [GH-260]
   417    * providers/digitalocean: Handle 404 on delete
   418    * providers/digitalocean: Add `user_data` argument for creating droplets
   419    * providers/google: Disks can be marked `auto_delete`. [GH-254]
   420  
   421  BUG FIXES:
   422  
   423    * core: Fix certain syntax of configuration that could cause hang. [GH-261]
   424    * core: `-no-color` flag properly disables color. [GH-250]
   425    * core: "~" is expanded in `-var-file` flags. [GH-273]
   426    * core: Errors with tfvars are shown in console. [GH-269]
   427    * core: Interpolation function calls with more than two args parse. [GH-282]
   428    * providers/aws: Refreshing EIP from pre-0.2 state file won't error. [GH-258]
   429    * providers/aws: Creating EIP without an instance/network won't fail.
   430    * providers/aws: Refreshing EIP manually deleted works.
   431    * providers/aws: Retry EIP delete to allow AWS eventual consistency to
   432        detect it isn't attached. [GH-276]
   433    * providers/digitalocean: Handle situations when resource was destroyed
   434        manually. [GH-279]
   435    * providers/digitalocean: Fix a couple scenarios where the diff was
   436        incorrect (and therefore the execution as well).
   437    * providers/google: Attaching a disk source (not an image) works
   438        properly. [GH-254]
   439  
   440  ## 0.2.1 (August 31, 2014)
   441  
   442  IMPROVEMENTS:
   443  
   444    * core: Plugins are automatically discovered in the executable directory
   445        or pwd if named properly. [GH-190]
   446    * providers/mailgun: domain records are now saved to state
   447  
   448  BUG FIXES:
   449  
   450    * core: Configuration parses when identifier and '=' have no space. [GH-243]
   451    * core: `depends_on` with `count` generates the proper graph. [GH-244]
   452    * core: Depending on a computed variable of a list type generates a
   453        plan without failure. i.e. `${type.name.foos.0.bar}` where `foos`
   454        is computed. [GH-247]
   455    * providers/aws: Route53 destroys in parallel work properly. [GH-183]
   456  
   457  ## 0.2.0 (August 28, 2014)
   458  
   459  BACKWARDS INCOMPATIBILITIES:
   460  
   461    * We've replaced the configuration language in use from a C library to
   462      a pure-Go reimplementation. In the process, we removed some features
   463      of the language since it was too flexible:
   464      * Semicolons are no longer valid at the end of lines
   465      * Keys cannot be double-quoted strings: `"foo" = "bar"` is no longer
   466        valid.
   467      * JSON style maps `{ "foo": "bar" }` are no longer valid outside of JSON.
   468        Maps must be in the format of `{ foo = "bar" }` (like other objects
   469        in the config)
   470    * Heroku apps now require (will not validate without) `region` and
   471      `name` due to an upstream API change. [GH-239]
   472  
   473  FEATURES:
   474  
   475    * **New Provider: `google`**: Manage Google Compute instances, disks,
   476        firewalls, and more.
   477    * **New Provider: `mailgun`**: Manage mailgun domains.
   478    * **New Function: `concat`**: Concatenate multiple strings together.
   479      Example: `concat(var.region, "-", var.channel)`.
   480  
   481  IMPROVEMENTS:
   482  
   483    * core: "~/.terraformrc" (Unix) or "%APPDATA%/terraform.rc" (Windows)
   484      can be used to configure custom providers and provisioners. [GH-192]
   485    * providers/aws: EIPs now expose `allocation_id` and `public_ip`
   486        attributes.
   487    * providers/aws: Security group rules can be updated without a
   488        destroy/create.
   489    * providers/aws: You can enable and disable dns settings for VPCs. [GH-172]
   490    * providers/aws: Can specify a private IP address for `aws_instance` [GH-217]
   491  
   492  BUG FIXES:
   493  
   494    * core: Variables are validated to not contain interpolations. [GH-180]
   495    * core: Key files for provisioning can now contain `~` and will be expanded
   496        to the user's home directory. [GH-179]
   497    * core: The `file()` function can load files in sub-directories. [GH-213]
   498    * core: Fix issue where some JSON structures didn't map properly into
   499       Terraform structures. [GH-177]
   500    * core: Resources with only `file()` calls will interpolate. [GH-159]
   501    * core: Variables work in block names. [GH-234]
   502    * core: Plugins are searched for in the same directory as the executable
   503        before the PATH. [GH-157]
   504    * command/apply: "tfvars" file no longer interferes with plan apply. [GH-153]
   505    * providers/aws: Fix issues around failing to read EIPs. [GH-122]
   506    * providers/aws: Autoscaling groups now register and export load
   507      balancers. [GH-207]
   508    * providers/aws: Ingress results are treated as a set, so order doesn't
   509        matter anymore. [GH-87]
   510    * providers/aws: Instance security groups treated as a set [GH-194]
   511    * providers/aws: Retry Route53 requests if operation failed because another
   512        operation is in progress [GH-183]
   513    * providers/aws: Route53 records with multiple record values work. [GH-221]
   514    * providers/aws: Changing AMI doesn't result in errors anymore. [GH-196]
   515    * providers/heroku: If you delete the `config_vars` block, config vars
   516        are properly nuked.
   517    * providers/heroku: Domains and drains are deleted before the app.
   518    * providers/heroku: Moved from the client library bgentry/heroku-go to
   519        cyberdelia/heroku-go [GH-239].
   520    * providers/heroku: Plans without a specific plan name for
   521        heroku\_addon work. [GH-198]
   522  
   523  PLUGIN CHANGES:
   524  
   525    * **New Package:** `helper/schema`. This introduces a high-level framework
   526      for easily writing new providers and resources. The Heroku provider has
   527      been converted to this as an example.
   528  
   529  ## 0.1.1 (August 5, 2014)
   530  
   531  FEATURES:
   532  
   533    * providers/heroku: Now supports creating Heroku Drains [GH-97]
   534  
   535  IMPROVEMENTS:
   536  
   537    * providers/aws: Launch configurations accept user data [GH-94]
   538    * providers/aws: Regions are now validated [GH-96]
   539    * providers/aws: ELB now supports health check configurations [GH-109]
   540  
   541  BUG FIXES:
   542  
   543    * core: Default variable file "terraform.tfvars" is auto-loaded. [GH-59]
   544    * core: Multi-variables (`foo.*.bar`) work even when `count = 1`. [GH-115]
   545    * core: `file()` function can have string literal arg [GH-145]
   546    * providers/cloudflare: Include the proper bins so the cloudflare
   547        provider is compiled
   548    * providers/aws: Engine version for RDS now properly set [GH-118]
   549    * providers/aws: Security groups now depend on each other and
   550    * providers/aws: DB instances now wait for destroys, have proper
   551        dependencies and allow passing skip_final_snapshot
   552    * providers/aws: Add associate_public_ip_address as an attribute on
   553        the aws_instance resource [GH-85]
   554    * providers/aws: Fix cidr blocks being updated [GH-65, GH-85]
   555    * providers/aws: Description is now required for security groups
   556    * providers/digitalocean: Private IP addresses are now a separate
   557        attribute
   558    * provisioner/all: If an SSH key is given with a password, a better
   559        error message is shown. [GH-73]
   560  
   561  ## 0.1.0 (July 28, 2014)
   562  
   563    * Initial release
   564  
   565