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Merge pull request #219 from jfortin-sap/add-terraform-subcommand
Add terraform subcommand
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// Copyright (c) 2018 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package cmd | ||
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import ( | ||
"errors" | ||
"fmt" | ||
"os" | ||
"os/exec" | ||
"path/filepath" | ||
"strings" | ||
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"github.com/spf13/cobra" | ||
) | ||
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// NewTerraformCmd returns a new terraform command. | ||
func NewTerraformCmd(targetReader TargetReader) *cobra.Command { | ||
return &cobra.Command{ | ||
Use: "terraform <args>", | ||
SilenceUsage: true, | ||
RunE: func(cmd *cobra.Command, args []string) error { | ||
target := targetReader.ReadTarget(pathTarget) | ||
if !CheckShootIsTargeted(target) { | ||
return errors.New("no shoot targeted") | ||
} | ||
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arguments := "terraform " + strings.Join(args[:], " ") | ||
terraform(arguments) | ||
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return nil | ||
}, | ||
} | ||
} | ||
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// terraform executes a terraform command on targeted cluster | ||
func terraform(args string) { | ||
_, err := exec.LookPath("terraform") | ||
if err != nil { | ||
fmt.Println("Terraform is not installed on your system") | ||
os.Exit(2) | ||
} | ||
var target Target | ||
ReadTarget(pathTarget, &target) | ||
gardenName := target.Stack()[0].Name | ||
pathTerraform := "" | ||
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if target.Target[1].Kind == "project" { | ||
pathTerraform = filepath.Join(pathGardenHome, "cache", gardenName, "projects", target.Target[1].Name, target.Target[2].Name, "terraform") | ||
} else if target.Target[1].Kind == "seed" { | ||
pathTerraform = filepath.Join(pathGardenHome, "cache", gardenName, "seeds", target.Target[1].Name, target.Target[2].Name, "terraform") | ||
} | ||
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if (strings.HasSuffix(args, "init")) { | ||
pathTerraform = downloadTerraformFiles("infra") | ||
fmt.Println("Downloaded terraform config to " + pathTerraform) | ||
} | ||
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_, err = os.Stat(pathTerraform) | ||
if os.IsNotExist(err) { | ||
fmt.Println("Please run terraform init first to fetch terraform config") | ||
os.Exit(2) | ||
} | ||
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err = os.Chdir(pathTerraform) | ||
if err != nil { | ||
fmt.Println("Could not move into the directory " + pathTerraform) | ||
os.Exit(2) | ||
} | ||
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err = ExecCmd(nil, args, false) | ||
checkError(err) | ||
} |