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atmos terraform generate backends command (#200)
* SAdd `atmos terraform generate backends` command * SAdd `atmos terraform generate backends` command * SAdd `atmos terraform generate backends` command
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| package cmd | ||
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| import ( | ||
| e "github.com/cloudposse/atmos/internal/exec" | ||
| u "github.com/cloudposse/atmos/pkg/utils" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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| // terraformGenerateBackendsCmd generates backend configs for all terraform components | ||
| var terraformGenerateBackendsCmd = &cobra.Command{ | ||
| Use: "backends", | ||
| Short: "Execute 'terraform generate backends' command", | ||
| Long: `This command generates backend configs for all terraform components`, | ||
| FParseErrWhitelist: struct{ UnknownFlags bool }{UnknownFlags: false}, | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| err := e.ExecuteTerraformGenerateBackendsCmd(cmd, args) | ||
| if err != nil { | ||
| u.PrintErrorToStdErrorAndExit(err) | ||
| } | ||
| }, | ||
| } | ||
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| func init() { | ||
| terraformGenerateBackendsCmd.DisableFlagParsing = false | ||
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| terraformGenerateBackendsCmd.PersistentFlags().String("format", "hcl", "Output format.\n"+ | ||
| "Supported formats: hcl, json ('hcl' is default).\n"+ | ||
| "atmos terraform generate backends --format=hcl/json") | ||
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| terraformGenerateCmd.AddCommand(terraformGenerateBackendsCmd) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package exec | ||
|
|
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| import ( | ||
| "fmt" | ||
| c "github.com/cloudposse/atmos/pkg/config" | ||
| u "github.com/cloudposse/atmos/pkg/utils" | ||
| "github.com/spf13/cobra" | ||
| "path" | ||
| "path/filepath" | ||
| ) | ||
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| // ExecuteTerraformGenerateBackendsCmd executes `terraform generate backends` command | ||
| func ExecuteTerraformGenerateBackendsCmd(cmd *cobra.Command, args []string) error { | ||
| flags := cmd.Flags() | ||
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| format, err := flags.GetString("format") | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if format != "" && format != "json" && format != "hcl" { | ||
| return fmt.Errorf("invalid '--format' argument '%s'. Valid values are 'json' and 'hcl", format) | ||
| } | ||
| if format == "" { | ||
| format = "hcl" | ||
| } | ||
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| return ExecuteTerraformGenerateBackends(format) | ||
| } | ||
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| // ExecuteTerraformGenerateBackends generates backend configs for all terraform components | ||
| func ExecuteTerraformGenerateBackends(format string) error { | ||
| var configAndStacksInfo c.ConfigAndStacksInfo | ||
| stacksMap, err := FindStacksMap(configAndStacksInfo, false) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| fmt.Println() | ||
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| var ok bool | ||
| var componentsSection map[string]any | ||
| var terraformSection map[string]any | ||
| var componentSection map[string]any | ||
| var backendSection map[any]any | ||
| var backendType string | ||
| processedTerraformComponents := map[string]any{} | ||
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| for _, stackSection := range stacksMap { | ||
| if componentsSection, ok = stackSection.(map[any]any)["components"].(map[string]any); !ok { | ||
| continue | ||
| } | ||
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| if terraformSection, ok = componentsSection["terraform"].(map[string]any); !ok { | ||
| continue | ||
| } | ||
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| for componentName, compSection := range terraformSection { | ||
| if componentSection, ok = compSection.(map[string]any); !ok { | ||
| continue | ||
| } | ||
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| // Find terraform component. | ||
| // If `component` attribute is present, it's the terraform component. | ||
| // Otherwise, the YAML component name is the terraform component. | ||
| terraformComponent := componentName | ||
| if componentAttribute, ok := componentSection["component"].(string); ok { | ||
| terraformComponent = componentAttribute | ||
| } | ||
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| // If the terraform component has been already processed, continue | ||
| if u.MapKeyExists(processedTerraformComponents, terraformComponent) { | ||
| continue | ||
| } | ||
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| processedTerraformComponents[terraformComponent] = terraformComponent | ||
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| // Component backend | ||
| if backendSection, ok = componentSection["backend"].(map[any]any); !ok { | ||
| continue | ||
| } | ||
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| // Backend type | ||
| if backendType, ok = componentSection["backend_type"].(string); !ok { | ||
| continue | ||
| } | ||
|
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| // Component metadata | ||
| metadataSection := map[any]any{} | ||
| if metadataSection, ok = componentSection["metadata"].(map[any]any); ok { | ||
| if componentType, ok := metadataSection["type"].(string); ok { | ||
| // Don't process abstract components | ||
| if componentType == "abstract" { | ||
| continue | ||
| } | ||
| } | ||
| } | ||
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| // Absolute path to the terraform component | ||
| backendFilePath := path.Join( | ||
| c.Config.BasePath, | ||
| c.Config.Components.Terraform.BasePath, | ||
| terraformComponent, | ||
| "backend.tf", | ||
| ) | ||
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| if format == "json" { | ||
| backendFilePath = backendFilePath + ".json" | ||
| } | ||
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| backendFileAbsolutePath, err := filepath.Abs(backendFilePath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| // Write the backend config to the file | ||
| u.PrintMessage(fmt.Sprintf("Writing backend config for the terraform component '%s' to file '%s'", terraformComponent, backendFilePath)) | ||
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| if format == "json" { | ||
| componentBackendConfig := generateComponentBackendConfig(backendType, backendSection) | ||
| err = u.WriteToFileAsJSON(backendFileAbsolutePath, componentBackendConfig, 0644) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } else if format == "hcl" { | ||
| err = u.WriteTerraformBackendConfigToFileAsHcl(backendFileAbsolutePath, backendType, backendSection) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } else { | ||
| return fmt.Errorf("invalid '--format' argument '%s'. Valid values are 'hcl' (default) and 'json", format) | ||
| } | ||
| } | ||
| } | ||
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| fmt.Println() | ||
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| return nil | ||
| } |
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