config: LoadDir
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9d028ab6de
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@ -66,6 +66,16 @@ func mergeConfig(c1, c2 *Config) (*Config, error) {
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c.Variables[k] = v2
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}
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// Merge outputs: If they collide, just take the latest one for now. In
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// the future, we might provide smarter merge functionality.
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c.Outputs = make(map[string]*Output)
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for k, v := range c1.Outputs {
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c.Outputs[k] = v
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}
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for k, v := range c2.Outputs {
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c.Outputs[k] = v
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}
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// Merge provider configs: If they collide, we just take the latest one
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// for now. In the future, we might provide smarter merge functionality.
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c.ProviderConfigs = make(map[string]*ProviderConfig)
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@ -1,5 +1,9 @@
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package config
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import (
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"path/filepath"
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)
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// Load loads the Terraform configuration from a given file.
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//
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// This file can be any format that Terraform recognizes, and import any
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@ -22,3 +26,31 @@ func Load(path string) (*Config, error) {
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return configTree.Flatten()
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}
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// LoadDir loads all the Terraform configuration files in a single
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// directory and merges them together.
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func LoadDir(path string) (*Config, error) {
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matches, err := filepath.Glob(filepath.Join(path, "*.tf"))
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if err != nil {
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return nil, err
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}
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var result *Config
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for _, f := range matches {
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c, err := Load(f)
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if err != nil {
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return nil, err
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}
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if result != nil {
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result, err = mergeConfig(result, c)
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if err != nil {
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return nil, err
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}
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} else {
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result = c
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}
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}
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return result, nil
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}
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@ -97,6 +97,37 @@ func TestLoad_variables(t *testing.T) {
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}
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}
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func TestLoadDir_basic(t *testing.T) {
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c, err := LoadDir(filepath.Join(fixtureDir, "dir-basic"))
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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if c == nil {
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t.Fatal("config should not be nil")
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}
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actual := variablesStr(c.Variables)
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if actual != strings.TrimSpace(dirBasicVariablesStr) {
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t.Fatalf("bad:\n%s", actual)
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}
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actual = providerConfigsStr(c.ProviderConfigs)
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if actual != strings.TrimSpace(dirBasicProvidersStr) {
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t.Fatalf("bad:\n%s", actual)
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}
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actual = resourcesStr(c.Resources)
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if actual != strings.TrimSpace(dirBasicResourcesStr) {
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t.Fatalf("bad:\n%s", actual)
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}
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actual = outputsStr(c.Outputs)
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if actual != strings.TrimSpace(dirBasicOutputsStr) {
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t.Fatalf("bad:\n%s", actual)
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}
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}
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func outputsStr(os map[string]*Output) string {
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ns := make([]string, 0, len(os))
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for n, _ := range os {
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@ -342,6 +373,43 @@ foo
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bar
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`
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const dirBasicOutputsStr = `
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web_ip
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vars
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resource: aws_instance.web.private_ip
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`
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const dirBasicProvidersStr = `
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aws
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access_key
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secret_key
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do
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api_key
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vars
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user: var.foo
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`
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const dirBasicResourcesStr = `
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aws_instance[db] (x1)
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security_groups
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vars
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resource: aws_security_group.firewall.*.id
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aws_instance[web] (x1)
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ami
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network_interface
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security_groups
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vars
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resource: aws_security_group.firewall.foo
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user: var.foo
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aws_security_group[firewall] (x5)
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`
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const dirBasicVariablesStr = `
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foo
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bar
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bar
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`
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const importProvidersStr = `
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aws
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foo
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@ -0,0 +1,17 @@
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variable "foo" {
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default = "bar";
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description = "bar";
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}
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provider "aws" {
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access_key = "foo";
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secret_key = "bar";
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}
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resource "aws_instance" "db" {
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security_groups = "${aws_security_group.firewall.*.id}"
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}
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output "web_ip" {
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value = "${aws_instance.web.private_ip}"
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}
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@ -0,0 +1,20 @@
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provider "do" {
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api_key = "${var.foo}";
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}
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resource "aws_security_group" "firewall" {
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count = 5
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}
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resource aws_instance "web" {
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ami = "${var.foo}"
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security_groups = [
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"foo",
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"${aws_security_group.firewall.foo}"
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]
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network_interface {
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device_index = 0
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description = "Main network interface"
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}
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}
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