/
parse_tfstate.go
146 lines (120 loc) · 3.36 KB
/
parse_tfstate.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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
package parsers
import (
"io/ioutil"
"github.com/linuxr/terragraph/configs"
"github.com/linuxr/terragraph/models"
"github.com/linuxr/terragraph/utils"
"github.com/spf13/cast"
"github.com/tidwall/gjson"
)
func ParseTfState(fp string) ([]models.Node, error) {
content, err := ioutil.ReadFile(fp)
if err != nil {
return nil, err
}
module := gjson.Get(cast.ToString(content), "values.root_module")
return ParseNodesFromTfState(module, nil)
}
func ParseNodesFromTfState(module gjson.Result, nodes []models.Node) ([]models.Node, error) {
var err error
if nodes == nil {
nodes = make([]models.Node, 0)
}
resources := module.Get("resources")
// fmt.Printf("resources: %v\n", resources)
if resources.Exists() && resources.IsArray() {
moduleAddr := module.Get("address").String()
for _, res := range resources.Array() {
node := models.Node{
Id: utils.GenUUID(),
Name: res.Get("name").String(),
ProviderName: res.Get("provider_name").String(),
ModuleAddress: moduleAddr,
Address: res.Get("address").String(),
Type: res.Get("type").String(),
DependsOn: make([]string, 0),
}
if res.Get("depends_on").IsArray() {
for _, depend := range res.Get("depends_on").Array() {
node.DependsOn = append(node.DependsOn, depend.String())
}
}
nodes = append(nodes, node)
}
}
childModules := module.Get("child_modules")
if childModules.Exists() && childModules.IsArray() {
for _, cModule := range childModules.Array() {
// fmt.Printf("child module: %v\n", cModule)
nodes, err = ParseNodesFromTfState(cModule, nodes)
if err != nil {
return nodes, err
}
}
}
return nodes, nil
}
// 先比较 addres,再比较 type
func ParseNodesWithConfig(nodes []models.Node, providers []configs.Provider) ([]models.Node, error) {
displayedNodes := make([]models.Node, 0)
for i, node := range nodes {
res := findNodeSettings(node, providers)
if res != nil {
nodes[i].Group = res.Group
nodes[i].IsDisplay = res.IsDisplay
// nodes[i].Name = res.Name
}
if nodes[i].IsDisplay {
displayedNodes = append(displayedNodes, nodes[i])
}
}
return displayedNodes, nil
}
func findNodeSettings(node models.Node, providers []configs.Provider) *configs.ProResource {
var resByType *configs.ProResource
// 先找 provider,再找resource
for _, p := range providers {
if p.Type != node.ProviderName {
continue
}
// resource 先按照address 匹配,再按照 type 匹配
for _, r := range p.Resources {
if r.Address == node.Address {
resByType = &r
break
}
if resByType == nil && r.Type == node.Type {
resByType = &r
}
}
}
return resByType
}
func ParseEdgeFromNodes(nodes []models.Node) ([]models.Edge, error) {
edges := make([]models.Edge, 0)
// 创建 nodes map,address 作为key,用于判断 depends_on 依赖的是否是资源
m := make(map[string]string)
for _, n := range nodes {
m[n.Address] = n.Id
}
for _, n := range nodes {
for _, depend := range n.DependsOn {
if id, ok := m[depend]; ok {
edges = append(edges, models.Edge{
SourceId: n.Id,
TargetId: id,
})
}
}
}
return edges, nil
}
func ParseGroupsFromNodes(nodes []models.Node) []string {
var groups = make([]string, 0)
for _, n := range nodes {
if n.Group != "" {
groups = append(groups, n.Group)
}
}
return utils.RemoveDuplicatedArr(groups)
}