mirror of
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Update test
This commit is contained in:
Gurarpit Singh
GitHub
parent
2d6f1b5b9e
commit
9649375dd1
658
plugin_test.go
658
plugin_test.go
@ -1,279 +1,411 @@
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"testing"
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"os/user"
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"path/filepath"
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"regexp"
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"strings"
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"time"
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. "github.com/franela/goblin"
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"github.com/Sirupsen/logrus"
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"github.com/aws/aws-sdk-go/aws/credentials"
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"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/sts"
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)
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func TestPlugin(t *testing.T) {
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g := Goblin(t)
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type (
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// Config holds input parameters for the plugin
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Config struct {
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Actions []string
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Vars map[string]string
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Secrets map[string]string
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InitOptions InitOptions
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FmtOptions FmtOptions
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Cacert string
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Sensitive bool
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RoleARN string
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RootDir string
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Parallelism int
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Targets []string
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VarFiles []string
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TerraformDataDir string
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}
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g.Describe("CopyTfEnv", func() {
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g.It("Should create copies of TF_VAR_ to lowercase", func() {
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// Set some initial TF_VAR_ that are uppercase
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os.Setenv("TF_VAR_SOMETHING", "some value")
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os.Setenv("TF_VAR_SOMETHING_ELSE", "some other value")
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os.Setenv("TF_VAR_BASE64", "dGVzdA==")
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// Netrc is credentials for cloning
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Netrc struct {
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Machine string
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Login string
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Password string
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}
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CopyTfEnv()
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// InitOptions include options for the Terraform's init command
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InitOptions struct {
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BackendConfig []string `json:"backend-config"`
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Lock *bool `json:"lock"`
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LockTimeout string `json:"lock-timeout"`
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}
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// Make sure new env vars exist with proper values
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g.Assert(os.Getenv("TF_VAR_something")).Equal("some value")
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g.Assert(os.Getenv("TF_VAR_something_else")).Equal("some other value")
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g.Assert(os.Getenv("TF_VAR_base64")).Equal("dGVzdA==")
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})
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})
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// FmtOptions fmt options for the Terraform's fmt command
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FmtOptions struct {
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List *bool `json:"list"`
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Write *bool `json:"write"`
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Diff *bool `json:"diff"`
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Check *bool `json:"check"`
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}
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g.Describe("tfApply", func() {
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g.It("Should return correct apply commands given the arguments", func() {
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type args struct {
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config Config
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// Plugin represents the plugin instance to be executed
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Plugin struct {
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Config Config
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Netrc Netrc
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Terraform Terraform
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}
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)
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// Exec executes the plugin
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func (p Plugin) Exec() error {
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// Install specified version of terraform
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if p.Terraform.Version != "" {
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err := installTerraform(p.Terraform.Version)
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if err != nil {
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return err
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}
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}
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if p.Config.RoleARN != "" {
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assumeRole(p.Config.RoleARN)
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}
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// writing the .netrc file with Github credentials in it.
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err := writeNetrc(p.Netrc.Machine, p.Netrc.Login, p.Netrc.Password)
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if err != nil {
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return err
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}
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var terraformDataDir string = ".terraform"
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if p.Config.TerraformDataDir != "" {
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terraformDataDir = p.Config.TerraformDataDir
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os.Setenv("TF_DATA_DIR", p.Config.TerraformDataDir)
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}
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var commands []*exec.Cmd
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commands = append(commands, exec.Command("terraform", "version"))
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CopyTfEnv()
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if p.Config.Cacert != "" {
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commands = append(commands, installCaCert(p.Config.Cacert))
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}
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commands = append(commands, deleteCache(terraformDataDir))
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commands = append(commands, initCommand(p.Config.InitOptions))
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commands = append(commands, getModules())
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// Add commands listed from Actions
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for _, action := range p.Config.Actions {
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switch action {
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case "fmt":
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commands = append(commands, tfFmt(p.Config))
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case "validate":
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commands = append(commands, tfValidate())
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case "plan":
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commands = append(commands, tfPlan(p.Config, false))
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case "plan-destroy":
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commands = append(commands, tfPlan(p.Config, true))
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case "apply":
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commands = append(commands, tfApply(p.Config))
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case "destroy":
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commands = append(commands, tfDestroy(p.Config))
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default:
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return fmt.Errorf("valid actions are: fmt, validate, plan, apply, plan-destroy, destroy. You provided %s", action)
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}
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}
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commands = append(commands, deleteCache(terraformDataDir))
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for _, c := range commands {
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if c.Dir == "" {
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wd, err := os.Getwd()
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if err == nil {
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c.Dir = wd
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}
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}
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if p.Config.RootDir != "" {
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c.Dir = c.Dir + "/" + p.Config.RootDir
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}
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c.Stdout = os.Stdout
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c.Stderr = os.Stderr
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if !p.Config.Sensitive {
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trace(c)
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}
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tests := []struct {
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name string
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args args
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want *exec.Cmd
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}{
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{
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"default",
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args{config: Config{}},
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exec.Command("terraform", "apply", "plan.tfout"),
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},
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{
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"with parallelism",
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args{config: Config{Parallelism: 5}},
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exec.Command("terraform", "apply", "-parallelism=5", "plan.tfout"),
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},
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{
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"with targets",
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args{config: Config{Targets: []string{"target1", "target2"}}},
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exec.Command("terraform", "apply", "--target", "target1", "--target", "target2", "plan.tfout"),
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},
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}
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err := c.Run()
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if err != nil {
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logrus.WithFields(logrus.Fields{
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"error": err,
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}).Fatal("Failed to execute a command")
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}
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logrus.Debug("Command completed successfully")
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}
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for _, tt := range tests {
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g.Assert(tfApply(tt.args.config)).Equal(tt.want)
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}
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})
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})
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g.Describe("tfDestroy", func() {
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g.It("Should return correct destroy commands given the arguments", func() {
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type args struct {
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config Config
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}
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tests := []struct {
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name string
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args args
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want *exec.Cmd
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}{
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{
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"default",
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args{config: Config{}},
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exec.Command("terraform", "destroy", "-force"),
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},
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{
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"with parallelism",
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args{config: Config{Parallelism: 5}},
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exec.Command("terraform", "destroy", "-parallelism=5", "-force"),
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},
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{
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"with targets",
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args{config: Config{Targets: []string{"target1", "target2"}}},
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exec.Command("terraform", "destroy", "-target=target1", "-target=target2", "-force"),
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},
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{
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"with vars",
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args{config: Config{Vars: map[string]string{"username": "someuser", "password": "1pass"}}},
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exec.Command("terraform", "destroy", "-var", "username=someuser", "-var", "password=1pass", "-force"),
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},
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{
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"with var-files",
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args{config: Config{VarFiles: []string{"common.tfvars", "prod.tfvars"}}},
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exec.Command("terraform", "destroy", "-var-file=common.tfvars", "-var-file=prod.tfvars", "-force"),
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},
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}
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for _, tt := range tests {
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g.Assert(tfDestroy(tt.args.config)).Equal(tt.want)
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}
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})
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})
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g.Describe("tfValidate", func() {
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g.It("Should return correct validate command", func() {
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type args struct {
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config Config
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}
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tests := []struct {
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name string
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args args
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want *exec.Cmd
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}{
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{
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"default",
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args{config: Config{VarFiles: []string{"common.tfvars", "prod.tfvars"}}},
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exec.Command("terraform", "validate"),
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},
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{
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"with no vars",
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args{config: Config{Vars: map[string]string{"var1": "value1", "var2": "value2"}}},
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exec.Command("terraform", "validate"),
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},
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{
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"with no var-files",
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args{config: Config{VarFiles: []string{"common.tfvars", "prod.tfvars"}}},
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exec.Command("terraform", "validate"),
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},
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}
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for _, tt := range tests {
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g.Assert(tfValidate()).Equal(tt.want)
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}
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})
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})
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g.Describe("tfPlan", func() {
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g.It("Should return correct plan commands given the arguments", func() {
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type args struct {
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config Config
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}
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tests := []struct {
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name string
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args args
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destroy bool
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want *exec.Cmd
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}{
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{
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"default",
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args{config: Config{}},
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false,
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exec.Command("terraform", "plan", "-out=plan.tfout"),
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},
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{
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"destroy",
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args{config: Config{}},
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true,
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exec.Command("terraform", "plan", "-destroy"),
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},
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{
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"with vars",
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args{config: Config{Vars: map[string]string{"username": "someuser", "password": "1pass"}}},
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false,
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exec.Command("terraform", "plan", "-out=plan.tfout", "-var", "username=someuser", "-var", "password=1pass"),
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},
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{
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"with var-files",
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args{config: Config{VarFiles: []string{"common.tfvars", "prod.tfvars"}}},
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false,
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exec.Command("terraform", "plan", "-out=plan.tfout", "-var-file=common.tfvars", "-var-file=prod.tfvars"),
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},
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}
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for _, tt := range tests {
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g.Assert(tfPlan(tt.args.config, tt.destroy)).Equal(tt.want)
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}
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})
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})
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g.Describe("tfFmt", func() {
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g.It("Should return correct fmt commands given the arguments", func() {
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type args struct {
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config Config
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}
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affirmative := true
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negative := false
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tests := []struct {
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name string
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args args
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want *exec.Cmd
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}{
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{
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"default",
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args{config: Config{}},
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exec.Command("terraform", "fmt"),
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},
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{
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"with list",
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args{config: Config{FmtOptions: FmtOptions{List: &affirmative}}},
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exec.Command("terraform", "fmt", "-list=true"),
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},
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{
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"with write",
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args{config: Config{FmtOptions: FmtOptions{Write: &affirmative}}},
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exec.Command("terraform", "fmt", "-write=true"),
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},
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{
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"with diff",
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args{config: Config{FmtOptions: FmtOptions{Diff: &affirmative}}},
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exec.Command("terraform", "fmt", "-diff=true"),
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},
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{
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"with check",
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args{config: Config{FmtOptions: FmtOptions{Check: &affirmative}}},
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exec.Command("terraform", "fmt", "-check=true"),
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},
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{
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"with combination",
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args{config: Config{FmtOptions: FmtOptions{
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List: &negative,
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Write: &negative,
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Diff: &affirmative,
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Check: &affirmative,
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}}},
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exec.Command("terraform", "fmt", "-list=false", "-write=false", "-diff=true", "-check=true"),
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},
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}
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for _, tt := range tests {
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g.Assert(tfFmt(tt.args.config)).Equal(tt.want)
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}
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})
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})
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g.Describe("tfDataDir", func() {
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g.It("Should override the terraform data dir environment variable when provided", func() {
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type args struct {
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config Config
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}
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tests := []struct {
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name string
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args args
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want *exec.Cmd
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}{
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{
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"with TerraformDataDir",
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args{config: Config{TerraformDataDir: ".overriden_terraform_dir"}},
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exec.Command("terraform", "apply", ".overriden_terraform_dir.plan.tfout"),
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},
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{
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"with TerraformDataDir value as .terraform",
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args{config: Config{TerraformDataDir: ".terraform"}},
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exec.Command("terraform", "apply", "plan.tfout"),
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},
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{
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"without TerraformDataDir",
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args{config: Config{}},
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exec.Command("terraform", "apply", "plan.tfout"),
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},
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}
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for _, tt := range tests {
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os.Setenv("TF_DATA_DIR", tt.args.config.TerraformDataDir)
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applied := tfApply(tt.args.config)
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g.Assert(applied).Equal(tt.want)
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}
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})
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})
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return nil
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}
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// CopyTfEnv creates copies of TF_VAR_ to lowercase
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func CopyTfEnv() {
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tfVar := regexp.MustCompile(`^TF_VAR_.*$`)
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for _, e := range os.Environ() {
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pair := strings.SplitN(e, "=", 2)
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if tfVar.MatchString(pair[0]) {
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name := strings.Split(pair[0], "TF_VAR_")
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os.Setenv(fmt.Sprintf("TF_VAR_%s", strings.ToLower(name[1])), pair[1])
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}
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}
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}
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func assumeRole(roleArn string) {
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client := sts.New(session.New())
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duration := time.Hour * 1
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stsProvider := &stscreds.AssumeRoleProvider{
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Client: client,
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Duration: duration,
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RoleARN: roleArn,
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RoleSessionName: "drone",
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}
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value, err := credentials.NewCredentials(stsProvider).Get()
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if err != nil {
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logrus.WithFields(logrus.Fields{
|
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"error": err,
|
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}).Fatal("Error assuming role!")
|
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}
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os.Setenv("AWS_ACCESS_KEY_ID", value.AccessKeyID)
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os.Setenv("AWS_SECRET_ACCESS_KEY", value.SecretAccessKey)
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os.Setenv("AWS_SESSION_TOKEN", value.SessionToken)
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}
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|
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func deleteCache(terraformDataDir string) *exec.Cmd {
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return exec.Command(
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"rm",
|
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"-rf",
|
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terraformDataDir,
|
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)
|
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}
|
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|
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func getModules() *exec.Cmd {
|
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return exec.Command(
|
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"terraform",
|
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"get",
|
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)
|
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}
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|
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func initCommand(config InitOptions) *exec.Cmd {
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args := []string{
|
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"init",
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}
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|
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for _, v := range config.BackendConfig {
|
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args = append(args, fmt.Sprintf("-backend-config=%s", v))
|
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}
|
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|
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// True is default in TF
|
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if config.Lock != nil {
|
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args = append(args, fmt.Sprintf("-lock=%t", *config.Lock))
|
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}
|
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|
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// "0s" is default in TF
|
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if config.LockTimeout != "" {
|
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args = append(args, fmt.Sprintf("-lock-timeout=%s", config.LockTimeout))
|
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}
|
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|
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// Fail Terraform execution on prompt
|
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args = append(args, "-input=false")
|
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|
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return exec.Command(
|
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"terraform",
|
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args...,
|
||||
)
|
||||
}
|
||||
|
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func installCaCert(cacert string) *exec.Cmd {
|
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ioutil.WriteFile("/usr/local/share/ca-certificates/ca_cert.crt", []byte(cacert), 0644)
|
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return exec.Command(
|
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"update-ca-certificates",
|
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)
|
||||
}
|
||||
|
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func trace(cmd *exec.Cmd) {
|
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fmt.Println("$", strings.Join(cmd.Args, " "))
|
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}
|
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|
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func tfApply(config Config) *exec.Cmd {
|
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args := []string{
|
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"apply",
|
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}
|
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for _, v := range config.Targets {
|
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args = append(args, "--target", fmt.Sprintf("%s", v))
|
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}
|
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if config.Parallelism > 0 {
|
||||
args = append(args, fmt.Sprintf("-parallelism=%d", config.Parallelism))
|
||||
}
|
||||
if config.InitOptions.Lock != nil {
|
||||
args = append(args, fmt.Sprintf("-lock=%t", *config.InitOptions.Lock))
|
||||
}
|
||||
if config.InitOptions.LockTimeout != "" {
|
||||
args = append(args, fmt.Sprintf("-lock-timeout=%s", config.InitOptions.LockTimeout))
|
||||
}
|
||||
args = append(args, getTfoutPath())
|
||||
|
||||
return exec.Command(
|
||||
"terraform",
|
||||
args...,
|
||||
)
|
||||
}
|
||||
|
||||
func tfDestroy(config Config) *exec.Cmd {
|
||||
args := []string{
|
||||
"destroy",
|
||||
}
|
||||
for _, v := range config.Targets {
|
||||
args = append(args, fmt.Sprintf("-target=%s", v))
|
||||
}
|
||||
args = append(args, varFiles(config.VarFiles)...)
|
||||
args = append(args, vars(config.Vars)...)
|
||||
if config.Parallelism > 0 {
|
||||
args = append(args, fmt.Sprintf("-parallelism=%d", config.Parallelism))
|
||||
}
|
||||
if config.InitOptions.Lock != nil {
|
||||
args = append(args, fmt.Sprintf("-lock=%t", *config.InitOptions.Lock))
|
||||
}
|
||||
if config.InitOptions.LockTimeout != "" {
|
||||
args = append(args, fmt.Sprintf("-lock-timeout=%s", config.InitOptions.LockTimeout))
|
||||
}
|
||||
args = append(args, "-force")
|
||||
return exec.Command(
|
||||
"terraform",
|
||||
args...,
|
||||
)
|
||||
}
|
||||
|
||||
func tfPlan(config Config, destroy bool) *exec.Cmd {
|
||||
args := []string{
|
||||
"plan",
|
||||
}
|
||||
|
||||
if destroy {
|
||||
args = append(args, "-destroy")
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("-out=%s", getTfoutPath()))
|
||||
}
|
||||
|
||||
for _, v := range config.Targets {
|
||||
args = append(args, "--target", fmt.Sprintf("%s", v))
|
||||
}
|
||||
args = append(args, varFiles(config.VarFiles)...)
|
||||
args = append(args, vars(config.Vars)...)
|
||||
if config.Parallelism > 0 {
|
||||
args = append(args, fmt.Sprintf("-parallelism=%d", config.Parallelism))
|
||||
}
|
||||
if config.InitOptions.Lock != nil {
|
||||
args = append(args, fmt.Sprintf("-lock=%t", *config.InitOptions.Lock))
|
||||
}
|
||||
if config.InitOptions.LockTimeout != "" {
|
||||
args = append(args, fmt.Sprintf("-lock-timeout=%s", config.InitOptions.LockTimeout))
|
||||
}
|
||||
return exec.Command(
|
||||
"terraform",
|
||||
args...,
|
||||
)
|
||||
}
|
||||
|
||||
func tfValidate() *exec.Cmd {
|
||||
args := []string{
|
||||
"validate",
|
||||
}
|
||||
return exec.Command(
|
||||
"terraform",
|
||||
args...,
|
||||
)
|
||||
}
|
||||
|
||||
func tfFmt(config Config) *exec.Cmd {
|
||||
args := []string{
|
||||
"fmt",
|
||||
}
|
||||
if config.FmtOptions.List != nil {
|
||||
args = append(args, fmt.Sprintf("-list=%t", *config.FmtOptions.List))
|
||||
}
|
||||
if config.FmtOptions.Write != nil {
|
||||
args = append(args, fmt.Sprintf("-write=%t", *config.FmtOptions.Write))
|
||||
}
|
||||
if config.FmtOptions.Diff != nil {
|
||||
args = append(args, fmt.Sprintf("-diff=%t", *config.FmtOptions.Diff))
|
||||
}
|
||||
if config.FmtOptions.Check != nil {
|
||||
args = append(args, fmt.Sprintf("-check=%t", *config.FmtOptions.Check))
|
||||
}
|
||||
return exec.Command(
|
||||
"terraform",
|
||||
args...,
|
||||
)
|
||||
}
|
||||
|
||||
func getTfoutPath() string {
|
||||
terraformDataDir := os.Getenv("TF_DATA_DIR")
|
||||
if terraformDataDir == ".terraform" || terraformDataDir == "" {
|
||||
return "plan.tfout"
|
||||
} else {
|
||||
return fmt.Sprintf("%s.plan.tfout", terraformDataDir)
|
||||
}
|
||||
}
|
||||
|
||||
func vars(vs map[string]string) []string {
|
||||
var args []string
|
||||
for k, v := range vs {
|
||||
args = append(args, "-var", fmt.Sprintf("%s=%s", k, v))
|
||||
}
|
||||
return args
|
||||
}
|
||||
|
||||
func varFiles(vfs []string) []string {
|
||||
var args []string
|
||||
for _, v := range vfs {
|
||||
args = append(args, fmt.Sprintf("-var-file=%s", v))
|
||||
}
|
||||
return args
|
||||
}
|
||||
|
||||
// helper function to write a netrc file.
|
||||
// The following code comes from the official Git plugin for Drone:
|
||||
// https://github.com/drone-plugins/drone-git/blob/8386effd2fe8c8695cf979427f8e1762bd805192/utils.go#L43-L68
|
||||
func writeNetrc(machine, login, password string) error {
|
||||
if machine == "" {
|
||||
return nil
|
||||
}
|
||||
out := fmt.Sprintf(
|
||||
netrcFile,
|
||||
machine,
|
||||
login,
|
||||
password,
|
||||
)
|
||||
|
||||
home := "/root"
|
||||
u, err := user.Current()
|
||||
if err == nil {
|
||||
home = u.HomeDir
|
||||
}
|
||||
path := filepath.Join(home, ".netrc")
|
||||
return ioutil.WriteFile(path, []byte(out), 0600)
|
||||
}
|
||||
|
||||
const netrcFile = `
|
||||
machine %s
|
||||
login %s
|
||||
password %s
|
||||
`
|
||||
|
||||
Loading…
Reference in New Issue
Block a user