github.com/zntrio/harp/v2@v2.0.9/pkg/tasks/from/hcl.go (about)

     1  // Licensed to Elasticsearch B.V. under one or more contributor
     2  // license agreements. See the NOTICE file distributed with
     3  // this work for additional information regarding copyright
     4  // ownership. Elasticsearch B.V. licenses this file to you under
     5  // the Apache License, Version 2.0 (the "License"); you may
     6  // not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing,
    12  // software distributed under the License is distributed on an
    13  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    14  // KIND, either express or implied.  See the License for the
    15  // specific language governing permissions and limitations
    16  // under the License.
    17  
    18  package from
    19  
    20  import (
    21  	"context"
    22  	"fmt"
    23  	"io"
    24  
    25  	bundlev1 "github.com/zntrio/harp/v2/api/gen/go/harp/bundle/v1"
    26  	"github.com/zntrio/harp/v2/pkg/bundle"
    27  	"github.com/zntrio/harp/v2/pkg/bundle/hcl"
    28  	"github.com/zntrio/harp/v2/pkg/tasks"
    29  )
    30  
    31  // JSONMapTask implements secret-container creation from JSON Map.
    32  type HCLTask struct {
    33  	HCLReader    tasks.ReaderProvider
    34  	OutputWriter tasks.WriterProvider
    35  }
    36  
    37  // Run the task.
    38  func (t *HCLTask) Run(ctx context.Context) error {
    39  	var (
    40  		reader io.Reader
    41  		writer io.Writer
    42  		b      *bundlev1.Bundle
    43  		err    error
    44  	)
    45  
    46  	// Create input reader
    47  	reader, err = t.HCLReader(ctx)
    48  	if err != nil {
    49  		return fmt.Errorf("unable to read input reader: %w", err)
    50  	}
    51  
    52  	// Parse input as HCL configuration object.
    53  	cfg, err := hcl.Parse(reader, "input", "hcl")
    54  	if err != nil {
    55  		return fmt.Errorf("unable to parse input HCL: %w", err)
    56  	}
    57  
    58  	// Build the container from hcl dsl
    59  	b, err = bundle.FromHCL(cfg)
    60  	if err != nil {
    61  		return fmt.Errorf("unable to create container from hcl: %w", err)
    62  	}
    63  
    64  	// Create output writer
    65  	writer, err = t.OutputWriter(ctx)
    66  	if err != nil {
    67  		return fmt.Errorf("unable to open output writer: %w", err)
    68  	}
    69  
    70  	// Dump bundle
    71  	if err = bundle.ToContainerWriter(writer, b); err != nil {
    72  		return fmt.Errorf("unable to produce exported bundle: %w", err)
    73  	}
    74  
    75  	// No error
    76  	return nil
    77  }