diff options
Diffstat (limited to 'vendor/github.com/hashicorp/terraform/terraform/eval_provider.go')
-rw-r--r-- | vendor/github.com/hashicorp/terraform/terraform/eval_provider.go | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/terraform/terraform/eval_provider.go b/vendor/github.com/hashicorp/terraform/terraform/eval_provider.go new file mode 100644 index 0000000..092fd18 --- /dev/null +++ b/vendor/github.com/hashicorp/terraform/terraform/eval_provider.go | |||
@@ -0,0 +1,164 @@ | |||
1 | package terraform | ||
2 | |||
3 | import ( | ||
4 | "fmt" | ||
5 | |||
6 | "github.com/hashicorp/terraform/config" | ||
7 | ) | ||
8 | |||
9 | // EvalSetProviderConfig sets the parent configuration for a provider | ||
10 | // without configuring that provider, validating it, etc. | ||
11 | type EvalSetProviderConfig struct { | ||
12 | Provider string | ||
13 | Config **ResourceConfig | ||
14 | } | ||
15 | |||
16 | func (n *EvalSetProviderConfig) Eval(ctx EvalContext) (interface{}, error) { | ||
17 | return nil, ctx.SetProviderConfig(n.Provider, *n.Config) | ||
18 | } | ||
19 | |||
20 | // EvalBuildProviderConfig outputs a *ResourceConfig that is properly | ||
21 | // merged with parents and inputs on top of what is configured in the file. | ||
22 | type EvalBuildProviderConfig struct { | ||
23 | Provider string | ||
24 | Config **ResourceConfig | ||
25 | Output **ResourceConfig | ||
26 | } | ||
27 | |||
28 | func (n *EvalBuildProviderConfig) Eval(ctx EvalContext) (interface{}, error) { | ||
29 | cfg := *n.Config | ||
30 | |||
31 | // If we have a configuration set, then merge that in | ||
32 | if input := ctx.ProviderInput(n.Provider); input != nil { | ||
33 | // "input" is a map of the subset of config values that were known | ||
34 | // during the input walk, set by EvalInputProvider. Note that | ||
35 | // in particular it does *not* include attributes that had | ||
36 | // computed values at input time; those appear *only* in | ||
37 | // "cfg" here. | ||
38 | rc, err := config.NewRawConfig(input) | ||
39 | if err != nil { | ||
40 | return nil, err | ||
41 | } | ||
42 | |||
43 | merged := cfg.raw.Merge(rc) | ||
44 | cfg = NewResourceConfig(merged) | ||
45 | } | ||
46 | |||
47 | // Get the parent configuration if there is one | ||
48 | if parent := ctx.ParentProviderConfig(n.Provider); parent != nil { | ||
49 | merged := cfg.raw.Merge(parent.raw) | ||
50 | cfg = NewResourceConfig(merged) | ||
51 | } | ||
52 | |||
53 | *n.Output = cfg | ||
54 | return nil, nil | ||
55 | } | ||
56 | |||
57 | // EvalConfigProvider is an EvalNode implementation that configures | ||
58 | // a provider that is already initialized and retrieved. | ||
59 | type EvalConfigProvider struct { | ||
60 | Provider string | ||
61 | Config **ResourceConfig | ||
62 | } | ||
63 | |||
64 | func (n *EvalConfigProvider) Eval(ctx EvalContext) (interface{}, error) { | ||
65 | return nil, ctx.ConfigureProvider(n.Provider, *n.Config) | ||
66 | } | ||
67 | |||
68 | // EvalInitProvider is an EvalNode implementation that initializes a provider | ||
69 | // and returns nothing. The provider can be retrieved again with the | ||
70 | // EvalGetProvider node. | ||
71 | type EvalInitProvider struct { | ||
72 | Name string | ||
73 | } | ||
74 | |||
75 | func (n *EvalInitProvider) Eval(ctx EvalContext) (interface{}, error) { | ||
76 | return ctx.InitProvider(n.Name) | ||
77 | } | ||
78 | |||
79 | // EvalCloseProvider is an EvalNode implementation that closes provider | ||
80 | // connections that aren't needed anymore. | ||
81 | type EvalCloseProvider struct { | ||
82 | Name string | ||
83 | } | ||
84 | |||
85 | func (n *EvalCloseProvider) Eval(ctx EvalContext) (interface{}, error) { | ||
86 | ctx.CloseProvider(n.Name) | ||
87 | return nil, nil | ||
88 | } | ||
89 | |||
90 | // EvalGetProvider is an EvalNode implementation that retrieves an already | ||
91 | // initialized provider instance for the given name. | ||
92 | type EvalGetProvider struct { | ||
93 | Name string | ||
94 | Output *ResourceProvider | ||
95 | } | ||
96 | |||
97 | func (n *EvalGetProvider) Eval(ctx EvalContext) (interface{}, error) { | ||
98 | result := ctx.Provider(n.Name) | ||
99 | if result == nil { | ||
100 | return nil, fmt.Errorf("provider %s not initialized", n.Name) | ||
101 | } | ||
102 | |||
103 | if n.Output != nil { | ||
104 | *n.Output = result | ||
105 | } | ||
106 | |||
107 | return nil, nil | ||
108 | } | ||
109 | |||
110 | // EvalInputProvider is an EvalNode implementation that asks for input | ||
111 | // for the given provider configurations. | ||
112 | type EvalInputProvider struct { | ||
113 | Name string | ||
114 | Provider *ResourceProvider | ||
115 | Config **ResourceConfig | ||
116 | } | ||
117 | |||
118 | func (n *EvalInputProvider) Eval(ctx EvalContext) (interface{}, error) { | ||
119 | // If we already configured this provider, then don't do this again | ||
120 | if v := ctx.ProviderInput(n.Name); v != nil { | ||
121 | return nil, nil | ||
122 | } | ||
123 | |||
124 | rc := *n.Config | ||
125 | |||
126 | // Wrap the input into a namespace | ||
127 | input := &PrefixUIInput{ | ||
128 | IdPrefix: fmt.Sprintf("provider.%s", n.Name), | ||
129 | QueryPrefix: fmt.Sprintf("provider.%s.", n.Name), | ||
130 | UIInput: ctx.Input(), | ||
131 | } | ||
132 | |||
133 | // Go through each provider and capture the input necessary | ||
134 | // to satisfy it. | ||
135 | config, err := (*n.Provider).Input(input, rc) | ||
136 | if err != nil { | ||
137 | return nil, fmt.Errorf( | ||
138 | "Error configuring %s: %s", n.Name, err) | ||
139 | } | ||
140 | |||
141 | // Set the input that we received so that child modules don't attempt | ||
142 | // to ask for input again. | ||
143 | if config != nil && len(config.Config) > 0 { | ||
144 | // This repository of provider input results on the context doesn't | ||
145 | // retain config.ComputedKeys, so we need to filter those out here | ||
146 | // in order that later users of this data won't try to use the unknown | ||
147 | // value placeholder as if it were a literal value. This map is just | ||
148 | // of known values we've been able to complete so far; dynamic stuff | ||
149 | // will be merged in by EvalBuildProviderConfig on subsequent | ||
150 | // (post-input) walks. | ||
151 | confMap := config.Config | ||
152 | if config.ComputedKeys != nil { | ||
153 | for _, key := range config.ComputedKeys { | ||
154 | delete(confMap, key) | ||
155 | } | ||
156 | } | ||
157 | |||
158 | ctx.SetProviderInput(n.Name, confMap) | ||
159 | } else { | ||
160 | ctx.SetProviderInput(n.Name, map[string]interface{}{}) | ||
161 | } | ||
162 | |||
163 | return nil, nil | ||
164 | } | ||