forked from improving-minnesota/drone-terraform
/
main.go
100 lines (85 loc) · 1.8 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
package main
import (
"fmt"
"os"
"os/exec"
"strings"
"github.com/drone/drone-plugin-go/plugin"
)
type terraform struct {
Remote remote `json:"remote"`
DryRun bool `json:"dryRun"`
Vars map[string]string `json:"vars"`
}
type remote struct {
Backend string `json:"backend"`
Config map[string]string `json:"config"`
}
func main() {
workspace := plugin.Workspace{}
vargs := terraform{}
plugin.Param("workspace", &workspace)
plugin.Param("vargs", &vargs)
plugin.MustParse()
var commands []*exec.Cmd
remote := vargs.Remote
if remote.Backend != "" {
commands = append(commands, remoteConfigCommand(remote))
}
commands = append(commands, planCommand(vargs.Vars))
if !vargs.DryRun {
commands = append(commands, applyCommand())
}
for _, c := range commands {
c.Env = os.Environ()
c.Dir = workspace.Path
c.Stdout = os.Stdout
c.Stderr = os.Stderr
trace(c)
err := c.Run()
if err != nil {
fmt.Println("Error!")
fmt.Println(err)
os.Exit(1)
}
fmt.Println("Command completed successfully")
}
}
func remoteConfigCommand(config remote) *exec.Cmd {
args := []string{
"remote",
"config",
fmt.Sprintf("-backend=%s", config.Backend),
}
for k, v := range config.Config {
args = append(args, fmt.Sprintf("-backend-config=%s=%s", k, v))
}
return exec.Command(
"terraform",
args...,
)
}
func planCommand(variables map[string]string) *exec.Cmd {
args := []string{
"plan",
"-out=plan.tfout",
}
for k, v := range variables {
args = append(args, "-var")
args = append(args, fmt.Sprintf("%s=%s", k, v))
}
return exec.Command(
"terraform",
args...,
)
}
func applyCommand() *exec.Cmd {
return exec.Command(
"terraform",
"apply",
"plan.tfout",
)
}
func trace(cmd *exec.Cmd) {
fmt.Println("$", strings.Join(cmd.Args, " "))
}