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feat(providers) initial implementation of pulumi provider #180
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,185 @@ | ||
| package pulumi | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/tidwall/gjson" | ||
|
|
||
| "github.com/helmfile/vals/pkg/api" | ||
| "github.com/helmfile/vals/pkg/log" | ||
| ) | ||
|
|
||
| const ( | ||
| defaultPulumiAPIEndpointURL = "https://api.pulumi.com" | ||
| ) | ||
|
|
||
| type provider struct { | ||
| log *log.Logger | ||
| backend string | ||
| pulumiAPIEndpointURL string | ||
| pulumiAPIAccessToken string | ||
| organization string | ||
| project string | ||
| stack string | ||
| } | ||
|
|
||
| type pulumiState struct { | ||
| Deployment pulumiDeployment `json:"deployment"` | ||
| } | ||
|
|
||
| func (r *pulumiState) findResourceByLogicalName(resourceType string, resourceLogicalName string) *pulumiResource { | ||
| for _, resource := range r.Deployment.Resources { | ||
| if resource.ResourceType == resourceType && strings.HasSuffix(resource.URN, resourceLogicalName) { | ||
| return &resource | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| type pulumiDeployment struct { | ||
| Resources []pulumiResource `json:"resources"` | ||
| } | ||
|
|
||
| type pulumiResource struct { | ||
| URN string `json:"urn"` | ||
| Custom bool `json:"custom"` | ||
| ID string `json:"id"` | ||
| ResourceType string `json:"type"` | ||
| Inputs json.RawMessage `json:"inputs"` | ||
| Outputs json.RawMessage `json:"outputs"` | ||
| } | ||
|
|
||
| func (r *pulumiResource) getAttributeValue(resourceAttribute string, resourceAttributePath string) string { | ||
| var attributeValue gjson.Result | ||
| switch resourceAttribute { | ||
| case "inputs": | ||
| attributeValue = gjson.GetBytes(r.Inputs, resourceAttributePath) | ||
| case "outputs": | ||
| attributeValue = gjson.GetBytes(r.Outputs, resourceAttributePath) | ||
| } | ||
| return attributeValue.String() | ||
| } | ||
|
|
||
| func New(l *log.Logger, cfg api.StaticConfig, backend string) *provider { | ||
| p := &provider{ | ||
| log: l, | ||
| backend: backend, | ||
| } | ||
|
|
||
| if cfg.Exists("pulumi_api_endpoint_url") { | ||
| p.pulumiAPIEndpointURL = cfg.String("pulumi_api_endpoint_url") | ||
| } else { | ||
| p.pulumiAPIEndpointURL = os.Getenv("PULUMI_API_ENDPOINT_URL") | ||
| if p.pulumiAPIEndpointURL == "" { | ||
| p.pulumiAPIEndpointURL = defaultPulumiAPIEndpointURL | ||
| } | ||
| } | ||
|
|
||
| p.pulumiAPIAccessToken = os.Getenv("PULUMI_ACCESS_TOKEN") | ||
|
|
||
| if cfg.Exists("organization") { | ||
| p.organization = cfg.String("organization") | ||
| } else { | ||
| p.organization = os.Getenv("PULUMI_ORGANIZATION") | ||
| } | ||
|
|
||
| p.project = cfg.String("project") | ||
| p.stack = cfg.String("stack") | ||
|
|
||
| p.log.Debugf("pulumi: backend=%q, api_endpoint=%q, organization=%q, project=%q, stack=%q", | ||
| p.backend, p.pulumiAPIEndpointURL, p.organization, p.project, p.stack) | ||
|
|
||
| return p | ||
| } | ||
|
|
||
| func (p *provider) GetString(key string) (string, error) { | ||
| tokens := strings.Split(key, "/") | ||
|
|
||
| // ref+pulumistateapi://RESOURCE_TYPE/RESOURCE_LOGICAL_NAME/ATTRIBUTE_TYPE/ATTRIBUTE_KEY_PATH?project=PROJECT&stack=STACK | ||
| if len(tokens) != 4 { | ||
| return "", fmt.Errorf("invalid key format. expected key format is RESOURCE_TYPE/RESOURCE_LOGICAL_NAME/ATTRIBUTE_TYPE/ATTRIBUTE_KEY_PATH") | ||
| } | ||
|
|
||
| resourceType := parsePulumiResourceType(tokens[0]) | ||
| resourceLogicalName := tokens[1] | ||
| resourceAttribute := tokens[2] | ||
|
|
||
| // https://github.com/tidwall/gjson/blob/master/SYNTAX.md#gjson-path-syntax | ||
| // https://gjson.dev/ | ||
| resourceAttributePath := tokens[3] | ||
|
|
||
| var state *pulumiState | ||
| var err error | ||
| switch p.backend { | ||
| case "pulumistateapi": | ||
| state, err = p.getStateFromPulumiAPI() | ||
| default: | ||
| err = fmt.Errorf("unsupported backend: %s", p.backend) | ||
| } | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| resource := state.findResourceByLogicalName(resourceType, resourceLogicalName) | ||
| if resource == nil { | ||
| return "", fmt.Errorf("resource with logical name not found: %s", resourceLogicalName) | ||
| } | ||
|
|
||
| attributeValue := resource.getAttributeValue(resourceAttribute, resourceAttributePath) | ||
|
|
||
| return attributeValue, nil | ||
| } | ||
|
|
||
| func (p *provider) GetStringMap(key string) (map[string]interface{}, error) { | ||
| return nil, fmt.Errorf("path fragment is not supported for pulumi provider") | ||
| } | ||
|
|
||
| // double underscore becomes a forward slash | ||
| // single underscore becomes a colon | ||
| // (e.g. kubernetes_storage.k8s.io__v1_StorageClass -> kubernetes:storage.k8s.io/v1:StorageClass) | ||
| func parsePulumiResourceType(str string) string { | ||
| return strings.ReplaceAll(strings.ReplaceAll(str, "__", "/"), "_", ":") | ||
| } | ||
|
|
||
| func (p *provider) getStateFromPulumiAPI() (*pulumiState, error) { | ||
| client := &http.Client{} | ||
|
|
||
| pulumiApiUrl := fmt.Sprintf("%s/api/stacks/%s/%s/%s/export", p.pulumiAPIEndpointURL, p.organization, p.project, p.stack) | ||
| req, err := http.NewRequest(http.MethodGet, pulumiApiUrl, nil) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| req.Header.Add("Content-Type", "application/json") | ||
| req.Header.Add("Accept", "application/vnd.pulumi+8") | ||
| req.Header.Add("Authorization", fmt.Sprintf("token %s", p.pulumiAPIAccessToken)) | ||
|
|
||
| response, err := client.Do(req) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer func() { | ||
| _ = response.Body.Close() | ||
| }() | ||
|
|
||
| responseBody, err := io.ReadAll(response.Body) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if response.StatusCode != http.StatusOK { | ||
| return nil, fmt.Errorf("pulumi api returned a non-200 status code: %d - body: %s", | ||
| response.StatusCode, string(responseBody)) | ||
| } | ||
|
|
||
| var state *pulumiState | ||
| err = json.Unmarshal(responseBody, &state) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return state, nil | ||
| } | ||
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@agershman we should check the length of tokens here. WDYT?
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Yep, I think that'd be helpful to be more explicit if the provided key is not in a supported format. Will address.